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edc98a62db
This patch adds a check for underflow when truncating results back to lower precision at the end of an FMA. The additional sign handling logic in APFloat::fusedMultiplyAdd should only be performed when the result of the addition step of the FMA (in full precision) is exactly zero, not when the result underflows to zero. Unit tests for this case and related signed zero FMA results are included. Fixes <rdar://problem/18925551>. llvm-svn: 225123
2880 lines
147 KiB
C++
2880 lines
147 KiB
C++
//===- llvm/unittest/ADT/APFloat.cpp - APFloat unit tests ---------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/APFloat.h"
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#include "llvm/ADT/APSInt.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/Support/raw_ostream.h"
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#include "gtest/gtest.h"
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#include <ostream>
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#include <string>
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using namespace llvm;
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static double convertToDoubleFromString(const char *Str) {
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llvm::APFloat F(0.0);
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F.convertFromString(Str, llvm::APFloat::rmNearestTiesToEven);
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return F.convertToDouble();
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}
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static std::string convertToString(double d, unsigned Prec, unsigned Pad) {
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llvm::SmallVector<char, 100> Buffer;
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llvm::APFloat F(d);
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F.toString(Buffer, Prec, Pad);
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return std::string(Buffer.data(), Buffer.size());
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}
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namespace {
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TEST(APFloatTest, isSignaling) {
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// We test qNaN, -qNaN, +sNaN, -sNaN with and without payloads. *NOTE* The
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// positive/negative distinction is included only since the getQNaN/getSNaN
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// API provides the option.
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APInt payload = APInt::getOneBitSet(4, 2);
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EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle, false).isSignaling());
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EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle, true).isSignaling());
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EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle, false, &payload).isSignaling());
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EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle, true, &payload).isSignaling());
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EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, false).isSignaling());
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EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, true).isSignaling());
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EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, false, &payload).isSignaling());
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EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, true, &payload).isSignaling());
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}
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TEST(APFloatTest, next) {
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APFloat test(APFloat::IEEEquad, APFloat::uninitialized);
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APFloat expected(APFloat::IEEEquad, APFloat::uninitialized);
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// 1. Test Special Cases Values.
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//
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// Test all special values for nextUp and nextDown perscribed by IEEE-754R
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// 2008. These are:
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// 1. +inf
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// 2. -inf
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// 3. getLargest()
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// 4. -getLargest()
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// 5. getSmallest()
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// 6. -getSmallest()
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// 7. qNaN
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// 8. sNaN
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// 9. +0
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// 10. -0
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// nextUp(+inf) = +inf.
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test = APFloat::getInf(APFloat::IEEEquad, false);
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expected = APFloat::getInf(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.isInfinity());
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EXPECT_TRUE(!test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(+inf) = -nextUp(-inf) = -(-getLargest()) = getLargest()
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test = APFloat::getInf(APFloat::IEEEquad, false);
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expected = APFloat::getLargest(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(!test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(-inf) = -getLargest()
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test = APFloat::getInf(APFloat::IEEEquad, true);
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expected = APFloat::getLargest(APFloat::IEEEquad, true);
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(-inf) = -nextUp(+inf) = -(+inf) = -inf.
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test = APFloat::getInf(APFloat::IEEEquad, true);
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expected = APFloat::getInf(APFloat::IEEEquad, true);
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.isInfinity() && test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(getLargest()) = +inf
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test = APFloat::getLargest(APFloat::IEEEquad, false);
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expected = APFloat::getInf(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.isInfinity() && !test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(getLargest()) = -nextUp(-getLargest())
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// = -(-getLargest() + inc)
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// = getLargest() - inc.
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test = APFloat::getLargest(APFloat::IEEEquad, false);
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expected = APFloat(APFloat::IEEEquad,
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"0x1.fffffffffffffffffffffffffffep+16383");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(!test.isInfinity() && !test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(-getLargest()) = -getLargest() + inc.
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test = APFloat::getLargest(APFloat::IEEEquad, true);
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expected = APFloat(APFloat::IEEEquad,
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"-0x1.fffffffffffffffffffffffffffep+16383");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(-getLargest()) = -nextUp(getLargest()) = -(inf) = -inf.
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test = APFloat::getLargest(APFloat::IEEEquad, true);
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expected = APFloat::getInf(APFloat::IEEEquad, true);
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.isInfinity() && test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(getSmallest()) = getSmallest() + inc.
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test = APFloat(APFloat::IEEEquad, "0x0.0000000000000000000000000001p-16382");
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expected = APFloat(APFloat::IEEEquad,
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"0x0.0000000000000000000000000002p-16382");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(getSmallest()) = -nextUp(-getSmallest()) = -(-0) = +0.
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test = APFloat(APFloat::IEEEquad, "0x0.0000000000000000000000000001p-16382");
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expected = APFloat::getZero(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.isZero() && !test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(-getSmallest()) = -0.
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test = APFloat(APFloat::IEEEquad, "-0x0.0000000000000000000000000001p-16382");
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expected = APFloat::getZero(APFloat::IEEEquad, true);
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.isZero() && test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(-getSmallest()) = -nextUp(getSmallest()) = -getSmallest() - inc.
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test = APFloat(APFloat::IEEEquad, "-0x0.0000000000000000000000000001p-16382");
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expected = APFloat(APFloat::IEEEquad,
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"-0x0.0000000000000000000000000002p-16382");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(qNaN) = qNaN
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test = APFloat::getQNaN(APFloat::IEEEquad, false);
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expected = APFloat::getQNaN(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(qNaN) = qNaN
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test = APFloat::getQNaN(APFloat::IEEEquad, false);
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expected = APFloat::getQNaN(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(sNaN) = qNaN
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test = APFloat::getSNaN(APFloat::IEEEquad, false);
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expected = APFloat::getQNaN(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(false), APFloat::opInvalidOp);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(sNaN) = qNaN
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test = APFloat::getSNaN(APFloat::IEEEquad, false);
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expected = APFloat::getQNaN(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(true), APFloat::opInvalidOp);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(+0) = +getSmallest()
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test = APFloat::getZero(APFloat::IEEEquad, false);
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expected = APFloat::getSmallest(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(+0) = -nextUp(-0) = -getSmallest()
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test = APFloat::getZero(APFloat::IEEEquad, false);
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expected = APFloat::getSmallest(APFloat::IEEEquad, true);
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(-0) = +getSmallest()
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test = APFloat::getZero(APFloat::IEEEquad, true);
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expected = APFloat::getSmallest(APFloat::IEEEquad, false);
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(-0) = -nextUp(0) = -getSmallest()
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test = APFloat::getZero(APFloat::IEEEquad, true);
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expected = APFloat::getSmallest(APFloat::IEEEquad, true);
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// 2. Binade Boundary Tests.
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// 2a. Test denormal <-> normal binade boundaries.
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// * nextUp(+Largest Denormal) -> +Smallest Normal.
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// * nextDown(-Largest Denormal) -> -Smallest Normal.
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// * nextUp(-Smallest Normal) -> -Largest Denormal.
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// * nextDown(+Smallest Normal) -> +Largest Denormal.
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// nextUp(+Largest Denormal) -> +Smallest Normal.
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test = APFloat(APFloat::IEEEquad, "0x0.ffffffffffffffffffffffffffffp-16382");
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expected = APFloat(APFloat::IEEEquad,
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"0x1.0000000000000000000000000000p-16382");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_FALSE(test.isDenormal());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(-Largest Denormal) -> -Smallest Normal.
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test = APFloat(APFloat::IEEEquad,
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"-0x0.ffffffffffffffffffffffffffffp-16382");
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expected = APFloat(APFloat::IEEEquad,
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"-0x1.0000000000000000000000000000p-16382");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_FALSE(test.isDenormal());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(-Smallest Normal) -> -LargestDenormal.
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test = APFloat(APFloat::IEEEquad,
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"-0x1.0000000000000000000000000000p-16382");
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expected = APFloat(APFloat::IEEEquad,
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"-0x0.ffffffffffffffffffffffffffffp-16382");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.isDenormal());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(+Smallest Normal) -> +Largest Denormal.
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test = APFloat(APFloat::IEEEquad,
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"+0x1.0000000000000000000000000000p-16382");
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expected = APFloat(APFloat::IEEEquad,
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"+0x0.ffffffffffffffffffffffffffffp-16382");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.isDenormal());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// 2b. Test normal <-> normal binade boundaries.
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// * nextUp(-Normal Binade Boundary) -> -Normal Binade Boundary + 1.
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// * nextDown(+Normal Binade Boundary) -> +Normal Binade Boundary - 1.
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// * nextUp(+Normal Binade Boundary - 1) -> +Normal Binade Boundary.
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// * nextDown(-Normal Binade Boundary + 1) -> -Normal Binade Boundary.
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// nextUp(-Normal Binade Boundary) -> -Normal Binade Boundary + 1.
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test = APFloat(APFloat::IEEEquad, "-0x1p+1");
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expected = APFloat(APFloat::IEEEquad,
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"-0x1.ffffffffffffffffffffffffffffp+0");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(+Normal Binade Boundary) -> +Normal Binade Boundary - 1.
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test = APFloat(APFloat::IEEEquad, "0x1p+1");
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expected = APFloat(APFloat::IEEEquad, "0x1.ffffffffffffffffffffffffffffp+0");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(+Normal Binade Boundary - 1) -> +Normal Binade Boundary.
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test = APFloat(APFloat::IEEEquad, "0x1.ffffffffffffffffffffffffffffp+0");
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expected = APFloat(APFloat::IEEEquad, "0x1p+1");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(-Normal Binade Boundary + 1) -> -Normal Binade Boundary.
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test = APFloat(APFloat::IEEEquad, "-0x1.ffffffffffffffffffffffffffffp+0");
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expected = APFloat(APFloat::IEEEquad, "-0x1p+1");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// 2c. Test using next at binade boundaries with a direction away from the
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// binade boundary. Away from denormal <-> normal boundaries.
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//
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// This is to make sure that even though we are at a binade boundary, since
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// we are rounding away, we do not trigger the binade boundary code. Thus we
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// test:
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// * nextUp(-Largest Denormal) -> -Largest Denormal + inc.
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// * nextDown(+Largest Denormal) -> +Largest Denormal - inc.
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// * nextUp(+Smallest Normal) -> +Smallest Normal + inc.
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// * nextDown(-Smallest Normal) -> -Smallest Normal - inc.
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// nextUp(-Largest Denormal) -> -Largest Denormal + inc.
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test = APFloat(APFloat::IEEEquad, "-0x0.ffffffffffffffffffffffffffffp-16382");
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expected = APFloat(APFloat::IEEEquad,
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"-0x0.fffffffffffffffffffffffffffep-16382");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.isDenormal());
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EXPECT_TRUE(test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(+Largest Denormal) -> +Largest Denormal - inc.
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test = APFloat(APFloat::IEEEquad, "0x0.ffffffffffffffffffffffffffffp-16382");
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expected = APFloat(APFloat::IEEEquad,
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"0x0.fffffffffffffffffffffffffffep-16382");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.isDenormal());
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EXPECT_TRUE(!test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(+Smallest Normal) -> +Smallest Normal + inc.
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test = APFloat(APFloat::IEEEquad, "0x1.0000000000000000000000000000p-16382");
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expected = APFloat(APFloat::IEEEquad,
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"0x1.0000000000000000000000000001p-16382");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(!test.isDenormal());
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EXPECT_TRUE(!test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(-Smallest Normal) -> -Smallest Normal - inc.
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test = APFloat(APFloat::IEEEquad, "-0x1.0000000000000000000000000000p-16382");
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expected = APFloat(APFloat::IEEEquad,
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"-0x1.0000000000000000000000000001p-16382");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(!test.isDenormal());
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EXPECT_TRUE(test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// 2d. Test values which cause our exponent to go to min exponent. This
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// is to ensure that guards in the code to check for min exponent
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// trigger properly.
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// * nextUp(-0x1p-16381) -> -0x1.ffffffffffffffffffffffffffffp-16382
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// * nextDown(-0x1.ffffffffffffffffffffffffffffp-16382) ->
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// -0x1p-16381
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// * nextUp(0x1.ffffffffffffffffffffffffffffp-16382) -> 0x1p-16382
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// * nextDown(0x1p-16382) -> 0x1.ffffffffffffffffffffffffffffp-16382
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// nextUp(-0x1p-16381) -> -0x1.ffffffffffffffffffffffffffffp-16382
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test = APFloat(APFloat::IEEEquad, "-0x1p-16381");
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expected = APFloat(APFloat::IEEEquad,
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"-0x1.ffffffffffffffffffffffffffffp-16382");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(-0x1.ffffffffffffffffffffffffffffp-16382) ->
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// -0x1p-16381
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test = APFloat(APFloat::IEEEquad, "-0x1.ffffffffffffffffffffffffffffp-16382");
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expected = APFloat(APFloat::IEEEquad, "-0x1p-16381");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextUp(0x1.ffffffffffffffffffffffffffffp-16382) -> 0x1p-16381
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test = APFloat(APFloat::IEEEquad, "0x1.ffffffffffffffffffffffffffffp-16382");
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expected = APFloat(APFloat::IEEEquad, "0x1p-16381");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(0x1p-16381) -> 0x1.ffffffffffffffffffffffffffffp-16382
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test = APFloat(APFloat::IEEEquad, "0x1p-16381");
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expected = APFloat(APFloat::IEEEquad,
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"0x1.ffffffffffffffffffffffffffffp-16382");
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EXPECT_EQ(test.next(true), APFloat::opOK);
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// 3. Now we test both denormal/normal computation which will not cause us
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// to go across binade boundaries. Specifically we test:
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// * nextUp(+Denormal) -> +Denormal.
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// * nextDown(+Denormal) -> +Denormal.
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// * nextUp(-Denormal) -> -Denormal.
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// * nextDown(-Denormal) -> -Denormal.
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// * nextUp(+Normal) -> +Normal.
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// * nextDown(+Normal) -> +Normal.
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// * nextUp(-Normal) -> -Normal.
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// * nextDown(-Normal) -> -Normal.
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// nextUp(+Denormal) -> +Denormal.
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test = APFloat(APFloat::IEEEquad,
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"0x0.ffffffffffffffffffffffff000cp-16382");
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expected = APFloat(APFloat::IEEEquad,
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"0x0.ffffffffffffffffffffffff000dp-16382");
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EXPECT_EQ(test.next(false), APFloat::opOK);
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EXPECT_TRUE(test.isDenormal());
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EXPECT_TRUE(!test.isNegative());
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EXPECT_TRUE(test.bitwiseIsEqual(expected));
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// nextDown(+Denormal) -> +Denormal.
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test = APFloat(APFloat::IEEEquad,
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"0x0.ffffffffffffffffffffffff000cp-16382");
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expected = APFloat(APFloat::IEEEquad,
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"0x0.ffffffffffffffffffffffff000bp-16382");
|
|
EXPECT_EQ(test.next(true), APFloat::opOK);
|
|
EXPECT_TRUE(test.isDenormal());
|
|
EXPECT_TRUE(!test.isNegative());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
// nextUp(-Denormal) -> -Denormal.
|
|
test = APFloat(APFloat::IEEEquad,
|
|
"-0x0.ffffffffffffffffffffffff000cp-16382");
|
|
expected = APFloat(APFloat::IEEEquad,
|
|
"-0x0.ffffffffffffffffffffffff000bp-16382");
|
|
EXPECT_EQ(test.next(false), APFloat::opOK);
|
|
EXPECT_TRUE(test.isDenormal());
|
|
EXPECT_TRUE(test.isNegative());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
// nextDown(-Denormal) -> -Denormal
|
|
test = APFloat(APFloat::IEEEquad,
|
|
"-0x0.ffffffffffffffffffffffff000cp-16382");
|
|
expected = APFloat(APFloat::IEEEquad,
|
|
"-0x0.ffffffffffffffffffffffff000dp-16382");
|
|
EXPECT_EQ(test.next(true), APFloat::opOK);
|
|
EXPECT_TRUE(test.isDenormal());
|
|
EXPECT_TRUE(test.isNegative());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
// nextUp(+Normal) -> +Normal.
|
|
test = APFloat(APFloat::IEEEquad,
|
|
"0x1.ffffffffffffffffffffffff000cp-16000");
|
|
expected = APFloat(APFloat::IEEEquad,
|
|
"0x1.ffffffffffffffffffffffff000dp-16000");
|
|
EXPECT_EQ(test.next(false), APFloat::opOK);
|
|
EXPECT_TRUE(!test.isDenormal());
|
|
EXPECT_TRUE(!test.isNegative());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
// nextDown(+Normal) -> +Normal.
|
|
test = APFloat(APFloat::IEEEquad,
|
|
"0x1.ffffffffffffffffffffffff000cp-16000");
|
|
expected = APFloat(APFloat::IEEEquad,
|
|
"0x1.ffffffffffffffffffffffff000bp-16000");
|
|
EXPECT_EQ(test.next(true), APFloat::opOK);
|
|
EXPECT_TRUE(!test.isDenormal());
|
|
EXPECT_TRUE(!test.isNegative());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
// nextUp(-Normal) -> -Normal.
|
|
test = APFloat(APFloat::IEEEquad,
|
|
"-0x1.ffffffffffffffffffffffff000cp-16000");
|
|
expected = APFloat(APFloat::IEEEquad,
|
|
"-0x1.ffffffffffffffffffffffff000bp-16000");
|
|
EXPECT_EQ(test.next(false), APFloat::opOK);
|
|
EXPECT_TRUE(!test.isDenormal());
|
|
EXPECT_TRUE(test.isNegative());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
// nextDown(-Normal) -> -Normal.
|
|
test = APFloat(APFloat::IEEEquad,
|
|
"-0x1.ffffffffffffffffffffffff000cp-16000");
|
|
expected = APFloat(APFloat::IEEEquad,
|
|
"-0x1.ffffffffffffffffffffffff000dp-16000");
|
|
EXPECT_EQ(test.next(true), APFloat::opOK);
|
|
EXPECT_TRUE(!test.isDenormal());
|
|
EXPECT_TRUE(test.isNegative());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
}
|
|
|
|
TEST(APFloatTest, FMA) {
|
|
APFloat::roundingMode rdmd = APFloat::rmNearestTiesToEven;
|
|
|
|
{
|
|
APFloat f1(14.5f);
|
|
APFloat f2(-14.5f);
|
|
APFloat f3(225.0f);
|
|
f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(14.75f, f1.convertToFloat());
|
|
}
|
|
|
|
{
|
|
APFloat Val2(2.0f);
|
|
APFloat f1((float)1.17549435e-38F);
|
|
APFloat f2((float)1.17549435e-38F);
|
|
f1.divide(Val2, rdmd);
|
|
f2.divide(Val2, rdmd);
|
|
APFloat f3(12.0f);
|
|
f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(12.0f, f1.convertToFloat());
|
|
}
|
|
|
|
// Test for correct zero sign when answer is exactly zero.
|
|
// fma(1.0, -1.0, 1.0) -> +ve 0.
|
|
{
|
|
APFloat f1(1.0);
|
|
APFloat f2(-1.0);
|
|
APFloat f3(1.0);
|
|
f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
|
|
EXPECT_TRUE(!f1.isNegative() && f1.isZero());
|
|
}
|
|
|
|
// Test for correct zero sign when answer is exactly zero and rounding towards
|
|
// negative.
|
|
// fma(1.0, -1.0, 1.0) -> +ve 0.
|
|
{
|
|
APFloat f1(1.0);
|
|
APFloat f2(-1.0);
|
|
APFloat f3(1.0);
|
|
f1.fusedMultiplyAdd(f2, f3, APFloat::rmTowardNegative);
|
|
EXPECT_TRUE(f1.isNegative() && f1.isZero());
|
|
}
|
|
|
|
// Test for correct (in this case -ve) sign when adding like signed zeros.
|
|
// Test fma(0.0, -0.0, -0.0) -> -ve 0.
|
|
{
|
|
APFloat f1(0.0);
|
|
APFloat f2(-0.0);
|
|
APFloat f3(-0.0);
|
|
f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
|
|
EXPECT_TRUE(f1.isNegative() && f1.isZero());
|
|
}
|
|
|
|
// Test -ve sign preservation when small negative results underflow.
|
|
{
|
|
APFloat f1(APFloat::IEEEdouble, "-0x1p-1074");
|
|
APFloat f2(APFloat::IEEEdouble, "+0x1p-1074");
|
|
APFloat f3(0.0);
|
|
f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
|
|
EXPECT_TRUE(f1.isNegative() && f1.isZero());
|
|
}
|
|
|
|
// Test x87 extended precision case from http://llvm.org/PR20728.
|
|
{
|
|
APFloat M1(APFloat::x87DoubleExtended, 1.0);
|
|
APFloat M2(APFloat::x87DoubleExtended, 1.0);
|
|
APFloat A(APFloat::x87DoubleExtended, 3.0);
|
|
|
|
bool losesInfo = false;
|
|
M1.fusedMultiplyAdd(M1, A, APFloat::rmNearestTiesToEven);
|
|
M1.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &losesInfo);
|
|
EXPECT_FALSE(losesInfo);
|
|
EXPECT_EQ(4.0f, M1.convertToFloat());
|
|
}
|
|
}
|
|
|
|
TEST(APFloatTest, MinNum) {
|
|
APFloat f1(1.0);
|
|
APFloat f2(2.0);
|
|
APFloat nan = APFloat::getNaN(APFloat::IEEEdouble);
|
|
|
|
EXPECT_EQ(1.0, minnum(f1, f2).convertToDouble());
|
|
EXPECT_EQ(1.0, minnum(f2, f1).convertToDouble());
|
|
EXPECT_EQ(1.0, minnum(f1, nan).convertToDouble());
|
|
EXPECT_EQ(1.0, minnum(nan, f1).convertToDouble());
|
|
}
|
|
|
|
TEST(APFloatTest, MaxNum) {
|
|
APFloat f1(1.0);
|
|
APFloat f2(2.0);
|
|
APFloat nan = APFloat::getNaN(APFloat::IEEEdouble);
|
|
|
|
EXPECT_EQ(2.0, maxnum(f1, f2).convertToDouble());
|
|
EXPECT_EQ(2.0, maxnum(f2, f1).convertToDouble());
|
|
EXPECT_EQ(1.0, maxnum(f1, nan).convertToDouble());
|
|
EXPECT_EQ(1.0, minnum(nan, f1).convertToDouble());
|
|
}
|
|
|
|
TEST(APFloatTest, Denormal) {
|
|
APFloat::roundingMode rdmd = APFloat::rmNearestTiesToEven;
|
|
|
|
// Test single precision
|
|
{
|
|
const char *MinNormalStr = "1.17549435082228750797e-38";
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEsingle, MinNormalStr).isDenormal());
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEsingle, 0.0).isDenormal());
|
|
|
|
APFloat Val2(APFloat::IEEEsingle, 2.0e0);
|
|
APFloat T(APFloat::IEEEsingle, MinNormalStr);
|
|
T.divide(Val2, rdmd);
|
|
EXPECT_TRUE(T.isDenormal());
|
|
}
|
|
|
|
// Test double precision
|
|
{
|
|
const char *MinNormalStr = "2.22507385850720138309e-308";
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEdouble, MinNormalStr).isDenormal());
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEdouble, 0.0).isDenormal());
|
|
|
|
APFloat Val2(APFloat::IEEEdouble, 2.0e0);
|
|
APFloat T(APFloat::IEEEdouble, MinNormalStr);
|
|
T.divide(Val2, rdmd);
|
|
EXPECT_TRUE(T.isDenormal());
|
|
}
|
|
|
|
// Test Intel double-ext
|
|
{
|
|
const char *MinNormalStr = "3.36210314311209350626e-4932";
|
|
EXPECT_FALSE(APFloat(APFloat::x87DoubleExtended, MinNormalStr).isDenormal());
|
|
EXPECT_FALSE(APFloat(APFloat::x87DoubleExtended, 0.0).isDenormal());
|
|
|
|
APFloat Val2(APFloat::x87DoubleExtended, 2.0e0);
|
|
APFloat T(APFloat::x87DoubleExtended, MinNormalStr);
|
|
T.divide(Val2, rdmd);
|
|
EXPECT_TRUE(T.isDenormal());
|
|
}
|
|
|
|
// Test quadruple precision
|
|
{
|
|
const char *MinNormalStr = "3.36210314311209350626267781732175260e-4932";
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEquad, MinNormalStr).isDenormal());
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEquad, 0.0).isDenormal());
|
|
|
|
APFloat Val2(APFloat::IEEEquad, 2.0e0);
|
|
APFloat T(APFloat::IEEEquad, MinNormalStr);
|
|
T.divide(Val2, rdmd);
|
|
EXPECT_TRUE(T.isDenormal());
|
|
}
|
|
}
|
|
|
|
TEST(APFloatTest, Zero) {
|
|
EXPECT_EQ(0.0f, APFloat(0.0f).convertToFloat());
|
|
EXPECT_EQ(-0.0f, APFloat(-0.0f).convertToFloat());
|
|
EXPECT_TRUE(APFloat(-0.0f).isNegative());
|
|
|
|
EXPECT_EQ(0.0, APFloat(0.0).convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(-0.0).convertToDouble());
|
|
EXPECT_TRUE(APFloat(-0.0).isNegative());
|
|
}
|
|
|
|
TEST(APFloatTest, DecimalStringsWithoutNullTerminators) {
|
|
// Make sure that we can parse strings without null terminators.
|
|
// rdar://14323230.
|
|
APFloat Val(APFloat::IEEEdouble);
|
|
Val.convertFromString(StringRef("0.00", 3),
|
|
llvm::APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(Val.convertToDouble(), 0.0);
|
|
Val.convertFromString(StringRef("0.01", 3),
|
|
llvm::APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(Val.convertToDouble(), 0.0);
|
|
Val.convertFromString(StringRef("0.09", 3),
|
|
llvm::APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(Val.convertToDouble(), 0.0);
|
|
Val.convertFromString(StringRef("0.095", 4),
|
|
llvm::APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(Val.convertToDouble(), 0.09);
|
|
Val.convertFromString(StringRef("0.00e+3", 7),
|
|
llvm::APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(Val.convertToDouble(), 0.00);
|
|
Val.convertFromString(StringRef("0e+3", 4),
|
|
llvm::APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(Val.convertToDouble(), 0.00);
|
|
|
|
}
|
|
|
|
TEST(APFloatTest, fromZeroDecimalString) {
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, ".0").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.0").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.0").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.0").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "00000.").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+00000.").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-00000.").convertToDouble());
|
|
|
|
EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble, ".00000").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.00000").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.00000").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0000.00000").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0000.00000").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0000.00000").convertToDouble());
|
|
}
|
|
|
|
TEST(APFloatTest, fromZeroDecimalSingleExponentString) {
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e+1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e-1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e-1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.e1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.e1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.e1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.e+1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.e+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.e+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.e-1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.e-1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.e-1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, ".0e1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.0e1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0e1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, ".0e+1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.0e+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0e+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, ".0e-1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+.0e-1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0e-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.0e1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.0e1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0e1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.0e+1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.0e+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0e+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0.0e-1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0.0e-1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0e-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "000.0000e1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+000.0000e+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-000.0000e+1").convertToDouble());
|
|
}
|
|
|
|
TEST(APFloatTest, fromZeroDecimalLargeExponentString) {
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e1234").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e1234").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e1234").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e+1234").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e+1234").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e+1234").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0e-1234").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0e-1234").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0e-1234").convertToDouble());
|
|
|
|
EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble, "000.0000e1234").convertToDouble());
|
|
EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble, "000.0000e-1234").convertToDouble());
|
|
|
|
EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble, StringRef("0e1234\02", 6)).convertToDouble());
|
|
}
|
|
|
|
TEST(APFloatTest, fromZeroHexadecimalString) {
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0p1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0p1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0p+1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0p+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0p-1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0p-1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.p1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.p1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p+1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.p+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.p+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p-1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.p-1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.p-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.0p1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x.0p1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x.0p1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.0p+1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x.0p+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x.0p+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.0p-1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x.0p-1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x.0p-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.0p1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.0p1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.0p1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.0p+1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.0p+1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.0p+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.0p-1").convertToDouble());
|
|
EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0x0.0p-1").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0.0p-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x00000.p1").convertToDouble());
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0000.00000p1").convertToDouble());
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.00000p1").convertToDouble());
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p1").convertToDouble());
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0p1234").convertToDouble());
|
|
EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p1234").convertToDouble());
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x00000.p1234").convertToDouble());
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0000.00000p1234").convertToDouble());
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x.00000p1234").convertToDouble());
|
|
EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0x0.p1234").convertToDouble());
|
|
}
|
|
|
|
TEST(APFloatTest, fromDecimalString) {
|
|
EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble, "1").convertToDouble());
|
|
EXPECT_EQ(2.0, APFloat(APFloat::IEEEdouble, "2.").convertToDouble());
|
|
EXPECT_EQ(0.5, APFloat(APFloat::IEEEdouble, ".5").convertToDouble());
|
|
EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble, "1.0").convertToDouble());
|
|
EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble, "-2").convertToDouble());
|
|
EXPECT_EQ(-4.0, APFloat(APFloat::IEEEdouble, "-4.").convertToDouble());
|
|
EXPECT_EQ(-0.5, APFloat(APFloat::IEEEdouble, "-.5").convertToDouble());
|
|
EXPECT_EQ(-1.5, APFloat(APFloat::IEEEdouble, "-1.5").convertToDouble());
|
|
EXPECT_EQ(1.25e12, APFloat(APFloat::IEEEdouble, "1.25e12").convertToDouble());
|
|
EXPECT_EQ(1.25e+12, APFloat(APFloat::IEEEdouble, "1.25e+12").convertToDouble());
|
|
EXPECT_EQ(1.25e-12, APFloat(APFloat::IEEEdouble, "1.25e-12").convertToDouble());
|
|
EXPECT_EQ(1024.0, APFloat(APFloat::IEEEdouble, "1024.").convertToDouble());
|
|
EXPECT_EQ(1024.05, APFloat(APFloat::IEEEdouble, "1024.05000").convertToDouble());
|
|
EXPECT_EQ(0.05, APFloat(APFloat::IEEEdouble, ".05000").convertToDouble());
|
|
EXPECT_EQ(2.0, APFloat(APFloat::IEEEdouble, "2.").convertToDouble());
|
|
EXPECT_EQ(2.0e2, APFloat(APFloat::IEEEdouble, "2.e2").convertToDouble());
|
|
EXPECT_EQ(2.0e+2, APFloat(APFloat::IEEEdouble, "2.e+2").convertToDouble());
|
|
EXPECT_EQ(2.0e-2, APFloat(APFloat::IEEEdouble, "2.e-2").convertToDouble());
|
|
EXPECT_EQ(2.05e2, APFloat(APFloat::IEEEdouble, "002.05000e2").convertToDouble());
|
|
EXPECT_EQ(2.05e+2, APFloat(APFloat::IEEEdouble, "002.05000e+2").convertToDouble());
|
|
EXPECT_EQ(2.05e-2, APFloat(APFloat::IEEEdouble, "002.05000e-2").convertToDouble());
|
|
EXPECT_EQ(2.05e12, APFloat(APFloat::IEEEdouble, "002.05000e12").convertToDouble());
|
|
EXPECT_EQ(2.05e+12, APFloat(APFloat::IEEEdouble, "002.05000e+12").convertToDouble());
|
|
EXPECT_EQ(2.05e-12, APFloat(APFloat::IEEEdouble, "002.05000e-12").convertToDouble());
|
|
|
|
// These are "carefully selected" to overflow the fast log-base
|
|
// calculations in APFloat.cpp
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "99e99999").isInfinity());
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "-99e99999").isInfinity());
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "1e-99999").isPosZero());
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "-1e-99999").isNegZero());
|
|
|
|
EXPECT_EQ(2.71828, convertToDoubleFromString("2.71828"));
|
|
}
|
|
|
|
TEST(APFloatTest, fromHexadecimalString) {
|
|
EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble, "0x1p0").convertToDouble());
|
|
EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble, "+0x1p0").convertToDouble());
|
|
EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble, "-0x1p0").convertToDouble());
|
|
|
|
EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble, "0x1p+0").convertToDouble());
|
|
EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble, "+0x1p+0").convertToDouble());
|
|
EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble, "-0x1p+0").convertToDouble());
|
|
|
|
EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble, "0x1p-0").convertToDouble());
|
|
EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble, "+0x1p-0").convertToDouble());
|
|
EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble, "-0x1p-0").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 2.0, APFloat(APFloat::IEEEdouble, "0x1p1").convertToDouble());
|
|
EXPECT_EQ(+2.0, APFloat(APFloat::IEEEdouble, "+0x1p1").convertToDouble());
|
|
EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble, "-0x1p1").convertToDouble());
|
|
|
|
EXPECT_EQ( 2.0, APFloat(APFloat::IEEEdouble, "0x1p+1").convertToDouble());
|
|
EXPECT_EQ(+2.0, APFloat(APFloat::IEEEdouble, "+0x1p+1").convertToDouble());
|
|
EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble, "-0x1p+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.5, APFloat(APFloat::IEEEdouble, "0x1p-1").convertToDouble());
|
|
EXPECT_EQ(+0.5, APFloat(APFloat::IEEEdouble, "+0x1p-1").convertToDouble());
|
|
EXPECT_EQ(-0.5, APFloat(APFloat::IEEEdouble, "-0x1p-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 3.0, APFloat(APFloat::IEEEdouble, "0x1.8p1").convertToDouble());
|
|
EXPECT_EQ(+3.0, APFloat(APFloat::IEEEdouble, "+0x1.8p1").convertToDouble());
|
|
EXPECT_EQ(-3.0, APFloat(APFloat::IEEEdouble, "-0x1.8p1").convertToDouble());
|
|
|
|
EXPECT_EQ( 3.0, APFloat(APFloat::IEEEdouble, "0x1.8p+1").convertToDouble());
|
|
EXPECT_EQ(+3.0, APFloat(APFloat::IEEEdouble, "+0x1.8p+1").convertToDouble());
|
|
EXPECT_EQ(-3.0, APFloat(APFloat::IEEEdouble, "-0x1.8p+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.75, APFloat(APFloat::IEEEdouble, "0x1.8p-1").convertToDouble());
|
|
EXPECT_EQ(+0.75, APFloat(APFloat::IEEEdouble, "+0x1.8p-1").convertToDouble());
|
|
EXPECT_EQ(-0.75, APFloat(APFloat::IEEEdouble, "-0x1.8p-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble, "0x1000.000p1").convertToDouble());
|
|
EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble, "+0x1000.000p1").convertToDouble());
|
|
EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble, "-0x1000.000p1").convertToDouble());
|
|
|
|
EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble, "0x1000.000p+1").convertToDouble());
|
|
EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble, "+0x1000.000p+1").convertToDouble());
|
|
EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble, "-0x1000.000p+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 2048.0, APFloat(APFloat::IEEEdouble, "0x1000.000p-1").convertToDouble());
|
|
EXPECT_EQ(+2048.0, APFloat(APFloat::IEEEdouble, "+0x1000.000p-1").convertToDouble());
|
|
EXPECT_EQ(-2048.0, APFloat(APFloat::IEEEdouble, "-0x1000.000p-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble, "0x1000p1").convertToDouble());
|
|
EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble, "+0x1000p1").convertToDouble());
|
|
EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble, "-0x1000p1").convertToDouble());
|
|
|
|
EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble, "0x1000p+1").convertToDouble());
|
|
EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble, "+0x1000p+1").convertToDouble());
|
|
EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble, "-0x1000p+1").convertToDouble());
|
|
|
|
EXPECT_EQ( 2048.0, APFloat(APFloat::IEEEdouble, "0x1000p-1").convertToDouble());
|
|
EXPECT_EQ(+2048.0, APFloat(APFloat::IEEEdouble, "+0x1000p-1").convertToDouble());
|
|
EXPECT_EQ(-2048.0, APFloat(APFloat::IEEEdouble, "-0x1000p-1").convertToDouble());
|
|
|
|
|
|
EXPECT_EQ( 16384.0, APFloat(APFloat::IEEEdouble, "0x10p10").convertToDouble());
|
|
EXPECT_EQ(+16384.0, APFloat(APFloat::IEEEdouble, "+0x10p10").convertToDouble());
|
|
EXPECT_EQ(-16384.0, APFloat(APFloat::IEEEdouble, "-0x10p10").convertToDouble());
|
|
|
|
EXPECT_EQ( 16384.0, APFloat(APFloat::IEEEdouble, "0x10p+10").convertToDouble());
|
|
EXPECT_EQ(+16384.0, APFloat(APFloat::IEEEdouble, "+0x10p+10").convertToDouble());
|
|
EXPECT_EQ(-16384.0, APFloat(APFloat::IEEEdouble, "-0x10p+10").convertToDouble());
|
|
|
|
EXPECT_EQ( 0.015625, APFloat(APFloat::IEEEdouble, "0x10p-10").convertToDouble());
|
|
EXPECT_EQ(+0.015625, APFloat(APFloat::IEEEdouble, "+0x10p-10").convertToDouble());
|
|
EXPECT_EQ(-0.015625, APFloat(APFloat::IEEEdouble, "-0x10p-10").convertToDouble());
|
|
|
|
EXPECT_EQ(1.0625, APFloat(APFloat::IEEEdouble, "0x1.1p0").convertToDouble());
|
|
EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble, "0x1p0").convertToDouble());
|
|
|
|
EXPECT_EQ(convertToDoubleFromString("0x1p-150"),
|
|
convertToDoubleFromString("+0x800000000000000001.p-221"));
|
|
EXPECT_EQ(2251799813685248.5,
|
|
convertToDoubleFromString("0x80000000000004000000.010p-28"));
|
|
}
|
|
|
|
TEST(APFloatTest, toString) {
|
|
ASSERT_EQ("10", convertToString(10.0, 6, 3));
|
|
ASSERT_EQ("1.0E+1", convertToString(10.0, 6, 0));
|
|
ASSERT_EQ("10100", convertToString(1.01E+4, 5, 2));
|
|
ASSERT_EQ("1.01E+4", convertToString(1.01E+4, 4, 2));
|
|
ASSERT_EQ("1.01E+4", convertToString(1.01E+4, 5, 1));
|
|
ASSERT_EQ("0.0101", convertToString(1.01E-2, 5, 2));
|
|
ASSERT_EQ("0.0101", convertToString(1.01E-2, 4, 2));
|
|
ASSERT_EQ("1.01E-2", convertToString(1.01E-2, 5, 1));
|
|
ASSERT_EQ("0.78539816339744828", convertToString(0.78539816339744830961, 0, 3));
|
|
ASSERT_EQ("4.9406564584124654E-324", convertToString(4.9406564584124654e-324, 0, 3));
|
|
ASSERT_EQ("873.18340000000001", convertToString(873.1834, 0, 1));
|
|
ASSERT_EQ("8.7318340000000001E+2", convertToString(873.1834, 0, 0));
|
|
ASSERT_EQ("1.7976931348623157E+308", convertToString(1.7976931348623157E+308, 0, 0));
|
|
}
|
|
|
|
TEST(APFloatTest, toInteger) {
|
|
bool isExact = false;
|
|
APSInt result(5, /*isUnsigned=*/true);
|
|
|
|
EXPECT_EQ(APFloat::opOK,
|
|
APFloat(APFloat::IEEEdouble, "10")
|
|
.convertToInteger(result, APFloat::rmTowardZero, &isExact));
|
|
EXPECT_TRUE(isExact);
|
|
EXPECT_EQ(APSInt(APInt(5, 10), true), result);
|
|
|
|
EXPECT_EQ(APFloat::opInvalidOp,
|
|
APFloat(APFloat::IEEEdouble, "-10")
|
|
.convertToInteger(result, APFloat::rmTowardZero, &isExact));
|
|
EXPECT_FALSE(isExact);
|
|
EXPECT_EQ(APSInt::getMinValue(5, true), result);
|
|
|
|
EXPECT_EQ(APFloat::opInvalidOp,
|
|
APFloat(APFloat::IEEEdouble, "32")
|
|
.convertToInteger(result, APFloat::rmTowardZero, &isExact));
|
|
EXPECT_FALSE(isExact);
|
|
EXPECT_EQ(APSInt::getMaxValue(5, true), result);
|
|
|
|
EXPECT_EQ(APFloat::opInexact,
|
|
APFloat(APFloat::IEEEdouble, "7.9")
|
|
.convertToInteger(result, APFloat::rmTowardZero, &isExact));
|
|
EXPECT_FALSE(isExact);
|
|
EXPECT_EQ(APSInt(APInt(5, 7), true), result);
|
|
|
|
result.setIsUnsigned(false);
|
|
EXPECT_EQ(APFloat::opOK,
|
|
APFloat(APFloat::IEEEdouble, "-10")
|
|
.convertToInteger(result, APFloat::rmTowardZero, &isExact));
|
|
EXPECT_TRUE(isExact);
|
|
EXPECT_EQ(APSInt(APInt(5, -10, true), false), result);
|
|
|
|
EXPECT_EQ(APFloat::opInvalidOp,
|
|
APFloat(APFloat::IEEEdouble, "-17")
|
|
.convertToInteger(result, APFloat::rmTowardZero, &isExact));
|
|
EXPECT_FALSE(isExact);
|
|
EXPECT_EQ(APSInt::getMinValue(5, false), result);
|
|
|
|
EXPECT_EQ(APFloat::opInvalidOp,
|
|
APFloat(APFloat::IEEEdouble, "16")
|
|
.convertToInteger(result, APFloat::rmTowardZero, &isExact));
|
|
EXPECT_FALSE(isExact);
|
|
EXPECT_EQ(APSInt::getMaxValue(5, false), result);
|
|
}
|
|
|
|
static APInt nanbits(const fltSemantics &Sem,
|
|
bool SNaN, bool Negative, uint64_t fill) {
|
|
APInt apfill(64, fill);
|
|
if (SNaN)
|
|
return APFloat::getSNaN(Sem, Negative, &apfill).bitcastToAPInt();
|
|
else
|
|
return APFloat::getQNaN(Sem, Negative, &apfill).bitcastToAPInt();
|
|
}
|
|
|
|
TEST(APFloatTest, makeNaN) {
|
|
ASSERT_EQ(0x7fc00000, nanbits(APFloat::IEEEsingle, false, false, 0));
|
|
ASSERT_EQ(0xffc00000, nanbits(APFloat::IEEEsingle, false, true, 0));
|
|
ASSERT_EQ(0x7fc0ae72, nanbits(APFloat::IEEEsingle, false, false, 0xae72));
|
|
ASSERT_EQ(0x7fffae72, nanbits(APFloat::IEEEsingle, false, false, 0xffffae72));
|
|
ASSERT_EQ(0x7fa00000, nanbits(APFloat::IEEEsingle, true, false, 0));
|
|
ASSERT_EQ(0xffa00000, nanbits(APFloat::IEEEsingle, true, true, 0));
|
|
ASSERT_EQ(0x7f80ae72, nanbits(APFloat::IEEEsingle, true, false, 0xae72));
|
|
ASSERT_EQ(0x7fbfae72, nanbits(APFloat::IEEEsingle, true, false, 0xffffae72));
|
|
|
|
ASSERT_EQ(0x7ff8000000000000ULL, nanbits(APFloat::IEEEdouble, false, false, 0));
|
|
ASSERT_EQ(0xfff8000000000000ULL, nanbits(APFloat::IEEEdouble, false, true, 0));
|
|
ASSERT_EQ(0x7ff800000000ae72ULL, nanbits(APFloat::IEEEdouble, false, false, 0xae72));
|
|
ASSERT_EQ(0x7fffffffffffae72ULL, nanbits(APFloat::IEEEdouble, false, false, 0xffffffffffffae72ULL));
|
|
ASSERT_EQ(0x7ff4000000000000ULL, nanbits(APFloat::IEEEdouble, true, false, 0));
|
|
ASSERT_EQ(0xfff4000000000000ULL, nanbits(APFloat::IEEEdouble, true, true, 0));
|
|
ASSERT_EQ(0x7ff000000000ae72ULL, nanbits(APFloat::IEEEdouble, true, false, 0xae72));
|
|
ASSERT_EQ(0x7ff7ffffffffae72ULL, nanbits(APFloat::IEEEdouble, true, false, 0xffffffffffffae72ULL));
|
|
}
|
|
|
|
#ifdef GTEST_HAS_DEATH_TEST
|
|
#ifndef NDEBUG
|
|
TEST(APFloatTest, SemanticsDeath) {
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEsingle, 0.0f).convertToDouble(), "Float semantics are not IEEEdouble");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, 0.0 ).convertToFloat(), "Float semantics are not IEEEsingle");
|
|
}
|
|
|
|
TEST(APFloatTest, StringDecimalDeath) {
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ""), "Invalid string length");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+"), "String has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-"), "String has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("\0", 1)), "Invalid character in significand");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\0", 2)), "Invalid character in significand");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\02", 3)), "Invalid character in significand");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\02e1", 5)), "Invalid character in significand");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e\0", 3)), "Invalid character in exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e1\0", 4)), "Invalid character in exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e1\02", 5)), "Invalid character in exponent");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0f"), "Invalid character in significand");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".."), "String contains multiple dots");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "..0"), "String contains multiple dots");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0.0"), "String contains multiple dots");
|
|
}
|
|
|
|
TEST(APFloatTest, StringDecimalSignificandDeath) {
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "."), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+."), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-."), "Significand has no digits");
|
|
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "e"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+e"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-e"), "Significand has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "e1"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+e1"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-e1"), "Significand has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".e1"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+.e1"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-.e1"), "Significand has no digits");
|
|
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".e"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+.e"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-.e"), "Significand has no digits");
|
|
}
|
|
|
|
TEST(APFloatTest, StringDecimalExponentDeath) {
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+1e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-1e"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+1.e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-1.e"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".1e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+.1e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-.1e"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.1e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+1.1e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-1.1e"), "Exponent has no digits");
|
|
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1e+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1e-"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".1e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".1e+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, ".1e-"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0e"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0e+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "1.0e-"), "Exponent has no digits");
|
|
}
|
|
|
|
TEST(APFloatTest, StringHexadecimalDeath) {
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x"), "Invalid string");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x"), "Invalid string");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x"), "Invalid string");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x0"), "Hex strings require an exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x0"), "Hex strings require an exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x0"), "Hex strings require an exponent");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x0."), "Hex strings require an exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x0."), "Hex strings require an exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x0."), "Hex strings require an exponent");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.0"), "Hex strings require an exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.0"), "Hex strings require an exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.0"), "Hex strings require an exponent");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x0.0"), "Hex strings require an exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x0.0"), "Hex strings require an exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x0.0"), "Hex strings require an exponent");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x\0", 3)), "Invalid character in significand");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\0", 4)), "Invalid character in significand");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\02", 5)), "Invalid character in significand");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\02p1", 7)), "Invalid character in significand");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p\0", 5)), "Invalid character in exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p1\0", 6)), "Invalid character in exponent");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p1\02", 7)), "Invalid character in exponent");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p0f"), "Invalid character in exponent");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x..p1"), "String contains multiple dots");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x..0p1"), "String contains multiple dots");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.0.0p1"), "String contains multiple dots");
|
|
}
|
|
|
|
TEST(APFloatTest, StringHexadecimalSignificandDeath) {
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x."), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x."), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x."), "Significand has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0xp"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0xp"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0xp"), "Significand has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0xp+"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0xp+"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0xp+"), "Significand has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0xp-"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0xp-"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0xp-"), "Significand has no digits");
|
|
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.p"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.p"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.p"), "Significand has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.p+"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.p+"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.p+"), "Significand has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.p-"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.p-"), "Significand has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.p-"), "Significand has no digits");
|
|
}
|
|
|
|
TEST(APFloatTest, StringHexadecimalExponentDeath) {
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1p"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1p"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1p+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1p+"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p-"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1p-"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1p-"), "Exponent has no digits");
|
|
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.p"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.p"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.p"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.p+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.p+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.p+"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.p-"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.p-"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.p-"), "Exponent has no digits");
|
|
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.1p"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.1p"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.1p"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.1p+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.1p+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.1p+"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x.1p-"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x.1p-"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x.1p-"), "Exponent has no digits");
|
|
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.1p"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.1p"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.1p"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.1p+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.1p+"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.1p+"), "Exponent has no digits");
|
|
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "0x1.1p-"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "+0x1.1p-"), "Exponent has no digits");
|
|
EXPECT_DEATH(APFloat(APFloat::IEEEdouble, "-0x1.1p-"), "Exponent has no digits");
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
TEST(APFloatTest, exactInverse) {
|
|
APFloat inv(0.0f);
|
|
|
|
// Trivial operation.
|
|
EXPECT_TRUE(APFloat(2.0).getExactInverse(&inv));
|
|
EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(0.5)));
|
|
EXPECT_TRUE(APFloat(2.0f).getExactInverse(&inv));
|
|
EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(0.5f)));
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEquad, "2.0").getExactInverse(&inv));
|
|
EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::IEEEquad, "0.5")));
|
|
EXPECT_TRUE(APFloat(APFloat::PPCDoubleDouble, "2.0").getExactInverse(&inv));
|
|
EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::PPCDoubleDouble, "0.5")));
|
|
EXPECT_TRUE(APFloat(APFloat::x87DoubleExtended, "2.0").getExactInverse(&inv));
|
|
EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::x87DoubleExtended, "0.5")));
|
|
|
|
// FLT_MIN
|
|
EXPECT_TRUE(APFloat(1.17549435e-38f).getExactInverse(&inv));
|
|
EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(8.5070592e+37f)));
|
|
|
|
// Large float, inverse is a denormal.
|
|
EXPECT_FALSE(APFloat(1.7014118e38f).getExactInverse(nullptr));
|
|
// Zero
|
|
EXPECT_FALSE(APFloat(0.0).getExactInverse(nullptr));
|
|
// Denormalized float
|
|
EXPECT_FALSE(APFloat(1.40129846e-45f).getExactInverse(nullptr));
|
|
}
|
|
|
|
TEST(APFloatTest, roundToIntegral) {
|
|
APFloat T(-0.5), S(3.14), R(APFloat::getLargest(APFloat::IEEEdouble)), P(0.0);
|
|
|
|
P = T;
|
|
P.roundToIntegral(APFloat::rmTowardZero);
|
|
EXPECT_EQ(-0.0, P.convertToDouble());
|
|
P = T;
|
|
P.roundToIntegral(APFloat::rmTowardNegative);
|
|
EXPECT_EQ(-1.0, P.convertToDouble());
|
|
P = T;
|
|
P.roundToIntegral(APFloat::rmTowardPositive);
|
|
EXPECT_EQ(-0.0, P.convertToDouble());
|
|
P = T;
|
|
P.roundToIntegral(APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(-0.0, P.convertToDouble());
|
|
|
|
P = S;
|
|
P.roundToIntegral(APFloat::rmTowardZero);
|
|
EXPECT_EQ(3.0, P.convertToDouble());
|
|
P = S;
|
|
P.roundToIntegral(APFloat::rmTowardNegative);
|
|
EXPECT_EQ(3.0, P.convertToDouble());
|
|
P = S;
|
|
P.roundToIntegral(APFloat::rmTowardPositive);
|
|
EXPECT_EQ(4.0, P.convertToDouble());
|
|
P = S;
|
|
P.roundToIntegral(APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(3.0, P.convertToDouble());
|
|
|
|
P = R;
|
|
P.roundToIntegral(APFloat::rmTowardZero);
|
|
EXPECT_EQ(R.convertToDouble(), P.convertToDouble());
|
|
P = R;
|
|
P.roundToIntegral(APFloat::rmTowardNegative);
|
|
EXPECT_EQ(R.convertToDouble(), P.convertToDouble());
|
|
P = R;
|
|
P.roundToIntegral(APFloat::rmTowardPositive);
|
|
EXPECT_EQ(R.convertToDouble(), P.convertToDouble());
|
|
P = R;
|
|
P.roundToIntegral(APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(R.convertToDouble(), P.convertToDouble());
|
|
|
|
P = APFloat::getZero(APFloat::IEEEdouble);
|
|
P.roundToIntegral(APFloat::rmTowardZero);
|
|
EXPECT_EQ(0.0, P.convertToDouble());
|
|
P = APFloat::getZero(APFloat::IEEEdouble, true);
|
|
P.roundToIntegral(APFloat::rmTowardZero);
|
|
EXPECT_EQ(-0.0, P.convertToDouble());
|
|
P = APFloat::getNaN(APFloat::IEEEdouble);
|
|
P.roundToIntegral(APFloat::rmTowardZero);
|
|
EXPECT_TRUE(IsNAN(P.convertToDouble()));
|
|
P = APFloat::getInf(APFloat::IEEEdouble);
|
|
P.roundToIntegral(APFloat::rmTowardZero);
|
|
EXPECT_TRUE(IsInf(P.convertToDouble()) && P.convertToDouble() > 0.0);
|
|
P = APFloat::getInf(APFloat::IEEEdouble, true);
|
|
P.roundToIntegral(APFloat::rmTowardZero);
|
|
EXPECT_TRUE(IsInf(P.convertToDouble()) && P.convertToDouble() < 0.0);
|
|
|
|
}
|
|
|
|
TEST(APFloatTest, getLargest) {
|
|
EXPECT_EQ(3.402823466e+38f, APFloat::getLargest(APFloat::IEEEsingle).convertToFloat());
|
|
EXPECT_EQ(1.7976931348623158e+308, APFloat::getLargest(APFloat::IEEEdouble).convertToDouble());
|
|
}
|
|
|
|
TEST(APFloatTest, getSmallest) {
|
|
APFloat test = APFloat::getSmallest(APFloat::IEEEsingle, false);
|
|
APFloat expected = APFloat(APFloat::IEEEsingle, "0x0.000002p-126");
|
|
EXPECT_FALSE(test.isNegative());
|
|
EXPECT_TRUE(test.isFiniteNonZero());
|
|
EXPECT_TRUE(test.isDenormal());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
test = APFloat::getSmallest(APFloat::IEEEsingle, true);
|
|
expected = APFloat(APFloat::IEEEsingle, "-0x0.000002p-126");
|
|
EXPECT_TRUE(test.isNegative());
|
|
EXPECT_TRUE(test.isFiniteNonZero());
|
|
EXPECT_TRUE(test.isDenormal());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
test = APFloat::getSmallest(APFloat::IEEEquad, false);
|
|
expected = APFloat(APFloat::IEEEquad, "0x0.0000000000000000000000000001p-16382");
|
|
EXPECT_FALSE(test.isNegative());
|
|
EXPECT_TRUE(test.isFiniteNonZero());
|
|
EXPECT_TRUE(test.isDenormal());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
test = APFloat::getSmallest(APFloat::IEEEquad, true);
|
|
expected = APFloat(APFloat::IEEEquad, "-0x0.0000000000000000000000000001p-16382");
|
|
EXPECT_TRUE(test.isNegative());
|
|
EXPECT_TRUE(test.isFiniteNonZero());
|
|
EXPECT_TRUE(test.isDenormal());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
}
|
|
|
|
TEST(APFloatTest, getSmallestNormalized) {
|
|
APFloat test = APFloat::getSmallestNormalized(APFloat::IEEEsingle, false);
|
|
APFloat expected = APFloat(APFloat::IEEEsingle, "0x1p-126");
|
|
EXPECT_FALSE(test.isNegative());
|
|
EXPECT_TRUE(test.isFiniteNonZero());
|
|
EXPECT_FALSE(test.isDenormal());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
test = APFloat::getSmallestNormalized(APFloat::IEEEsingle, true);
|
|
expected = APFloat(APFloat::IEEEsingle, "-0x1p-126");
|
|
EXPECT_TRUE(test.isNegative());
|
|
EXPECT_TRUE(test.isFiniteNonZero());
|
|
EXPECT_FALSE(test.isDenormal());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
test = APFloat::getSmallestNormalized(APFloat::IEEEquad, false);
|
|
expected = APFloat(APFloat::IEEEquad, "0x1p-16382");
|
|
EXPECT_FALSE(test.isNegative());
|
|
EXPECT_TRUE(test.isFiniteNonZero());
|
|
EXPECT_FALSE(test.isDenormal());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
|
|
test = APFloat::getSmallestNormalized(APFloat::IEEEquad, true);
|
|
expected = APFloat(APFloat::IEEEquad, "-0x1p-16382");
|
|
EXPECT_TRUE(test.isNegative());
|
|
EXPECT_TRUE(test.isFiniteNonZero());
|
|
EXPECT_FALSE(test.isDenormal());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
}
|
|
|
|
TEST(APFloatTest, getZero) {
|
|
struct {
|
|
const fltSemantics *semantics;
|
|
const bool sign;
|
|
const unsigned long long bitPattern[2];
|
|
const unsigned bitPatternLength;
|
|
} const GetZeroTest[] = {
|
|
{ &APFloat::IEEEhalf, false, {0, 0}, 1},
|
|
{ &APFloat::IEEEhalf, true, {0x8000ULL, 0}, 1},
|
|
{ &APFloat::IEEEsingle, false, {0, 0}, 1},
|
|
{ &APFloat::IEEEsingle, true, {0x80000000ULL, 0}, 1},
|
|
{ &APFloat::IEEEdouble, false, {0, 0}, 1},
|
|
{ &APFloat::IEEEdouble, true, {0x8000000000000000ULL, 0}, 1},
|
|
{ &APFloat::IEEEquad, false, {0, 0}, 2},
|
|
{ &APFloat::IEEEquad, true, {0, 0x8000000000000000ULL}, 2},
|
|
{ &APFloat::PPCDoubleDouble, false, {0, 0}, 2},
|
|
{ &APFloat::PPCDoubleDouble, true, {0x8000000000000000ULL, 0}, 2},
|
|
{ &APFloat::x87DoubleExtended, false, {0, 0}, 2},
|
|
{ &APFloat::x87DoubleExtended, true, {0, 0x8000ULL}, 2},
|
|
};
|
|
const unsigned NumGetZeroTests = 12;
|
|
for (unsigned i = 0; i < NumGetZeroTests; ++i) {
|
|
APFloat test = APFloat::getZero(*GetZeroTest[i].semantics,
|
|
GetZeroTest[i].sign);
|
|
const char *pattern = GetZeroTest[i].sign? "-0x0p+0" : "0x0p+0";
|
|
APFloat expected = APFloat(*GetZeroTest[i].semantics,
|
|
pattern);
|
|
EXPECT_TRUE(test.isZero());
|
|
EXPECT_TRUE(GetZeroTest[i].sign? test.isNegative() : !test.isNegative());
|
|
EXPECT_TRUE(test.bitwiseIsEqual(expected));
|
|
for (unsigned j = 0, je = GetZeroTest[i].bitPatternLength; j < je; ++j) {
|
|
EXPECT_EQ(GetZeroTest[i].bitPattern[j],
|
|
test.bitcastToAPInt().getRawData()[j]);
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(APFloatTest, copySign) {
|
|
EXPECT_TRUE(APFloat(-42.0).bitwiseIsEqual(
|
|
APFloat::copySign(APFloat(42.0), APFloat(-1.0))));
|
|
EXPECT_TRUE(APFloat(42.0).bitwiseIsEqual(
|
|
APFloat::copySign(APFloat(-42.0), APFloat(1.0))));
|
|
EXPECT_TRUE(APFloat(-42.0).bitwiseIsEqual(
|
|
APFloat::copySign(APFloat(-42.0), APFloat(-1.0))));
|
|
EXPECT_TRUE(APFloat(42.0).bitwiseIsEqual(
|
|
APFloat::copySign(APFloat(42.0), APFloat(1.0))));
|
|
}
|
|
|
|
TEST(APFloatTest, convert) {
|
|
bool losesInfo;
|
|
APFloat test(APFloat::IEEEdouble, "1.0");
|
|
test.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &losesInfo);
|
|
EXPECT_EQ(1.0f, test.convertToFloat());
|
|
EXPECT_FALSE(losesInfo);
|
|
|
|
test = APFloat(APFloat::x87DoubleExtended, "0x1p-53");
|
|
test.add(APFloat(APFloat::x87DoubleExtended, "1.0"), APFloat::rmNearestTiesToEven);
|
|
test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo);
|
|
EXPECT_EQ(1.0, test.convertToDouble());
|
|
EXPECT_TRUE(losesInfo);
|
|
|
|
test = APFloat(APFloat::IEEEquad, "0x1p-53");
|
|
test.add(APFloat(APFloat::IEEEquad, "1.0"), APFloat::rmNearestTiesToEven);
|
|
test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo);
|
|
EXPECT_EQ(1.0, test.convertToDouble());
|
|
EXPECT_TRUE(losesInfo);
|
|
|
|
test = APFloat(APFloat::x87DoubleExtended, "0xf.fffffffp+28");
|
|
test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo);
|
|
EXPECT_EQ(4294967295.0, test.convertToDouble());
|
|
EXPECT_FALSE(losesInfo);
|
|
|
|
test = APFloat::getSNaN(APFloat::IEEEsingle);
|
|
APFloat X87SNaN = APFloat::getSNaN(APFloat::x87DoubleExtended);
|
|
test.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven,
|
|
&losesInfo);
|
|
EXPECT_TRUE(test.bitwiseIsEqual(X87SNaN));
|
|
EXPECT_FALSE(losesInfo);
|
|
|
|
test = APFloat::getQNaN(APFloat::IEEEsingle);
|
|
APFloat X87QNaN = APFloat::getQNaN(APFloat::x87DoubleExtended);
|
|
test.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven,
|
|
&losesInfo);
|
|
EXPECT_TRUE(test.bitwiseIsEqual(X87QNaN));
|
|
EXPECT_FALSE(losesInfo);
|
|
|
|
test = APFloat::getSNaN(APFloat::x87DoubleExtended);
|
|
test.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven,
|
|
&losesInfo);
|
|
EXPECT_TRUE(test.bitwiseIsEqual(X87SNaN));
|
|
EXPECT_FALSE(losesInfo);
|
|
|
|
test = APFloat::getQNaN(APFloat::x87DoubleExtended);
|
|
test.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven,
|
|
&losesInfo);
|
|
EXPECT_TRUE(test.bitwiseIsEqual(X87QNaN));
|
|
EXPECT_FALSE(losesInfo);
|
|
}
|
|
|
|
TEST(APFloatTest, PPCDoubleDouble) {
|
|
APFloat test(APFloat::PPCDoubleDouble, "1.0");
|
|
EXPECT_EQ(0x3ff0000000000000ull, test.bitcastToAPInt().getRawData()[0]);
|
|
EXPECT_EQ(0x0000000000000000ull, test.bitcastToAPInt().getRawData()[1]);
|
|
|
|
test.divide(APFloat(APFloat::PPCDoubleDouble, "3.0"), APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(0x3fd5555555555555ull, test.bitcastToAPInt().getRawData()[0]);
|
|
EXPECT_EQ(0x3c75555555555556ull, test.bitcastToAPInt().getRawData()[1]);
|
|
|
|
// LDBL_MAX
|
|
test = APFloat(APFloat::PPCDoubleDouble, "1.79769313486231580793728971405301e+308");
|
|
EXPECT_EQ(0x7fefffffffffffffull, test.bitcastToAPInt().getRawData()[0]);
|
|
EXPECT_EQ(0x7c8ffffffffffffeull, test.bitcastToAPInt().getRawData()[1]);
|
|
|
|
// LDBL_MIN
|
|
test = APFloat(APFloat::PPCDoubleDouble, "2.00416836000897277799610805135016e-292");
|
|
EXPECT_EQ(0x0360000000000000ull, test.bitcastToAPInt().getRawData()[0]);
|
|
EXPECT_EQ(0x0000000000000000ull, test.bitcastToAPInt().getRawData()[1]);
|
|
|
|
test = APFloat(APFloat::PPCDoubleDouble, "1.0");
|
|
test.add(APFloat(APFloat::PPCDoubleDouble, "0x1p-105"), APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(0x3ff0000000000000ull, test.bitcastToAPInt().getRawData()[0]);
|
|
EXPECT_EQ(0x3960000000000000ull, test.bitcastToAPInt().getRawData()[1]);
|
|
|
|
test = APFloat(APFloat::PPCDoubleDouble, "1.0");
|
|
test.add(APFloat(APFloat::PPCDoubleDouble, "0x1p-106"), APFloat::rmNearestTiesToEven);
|
|
EXPECT_EQ(0x3ff0000000000000ull, test.bitcastToAPInt().getRawData()[0]);
|
|
#if 0 // XFAIL
|
|
// This is what we would expect with a true double-double implementation
|
|
EXPECT_EQ(0x3950000000000000ull, test.bitcastToAPInt().getRawData()[1]);
|
|
#else
|
|
// This is what we get with our 106-bit mantissa approximation
|
|
EXPECT_EQ(0x0000000000000000ull, test.bitcastToAPInt().getRawData()[1]);
|
|
#endif
|
|
}
|
|
|
|
TEST(APFloatTest, isNegative) {
|
|
APFloat t(APFloat::IEEEsingle, "0x1p+0");
|
|
EXPECT_FALSE(t.isNegative());
|
|
t = APFloat(APFloat::IEEEsingle, "-0x1p+0");
|
|
EXPECT_TRUE(t.isNegative());
|
|
|
|
EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNegative());
|
|
EXPECT_TRUE(APFloat::getInf(APFloat::IEEEsingle, true).isNegative());
|
|
|
|
EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNegative());
|
|
EXPECT_TRUE(APFloat::getZero(APFloat::IEEEsingle, true).isNegative());
|
|
|
|
EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isNegative());
|
|
EXPECT_TRUE(APFloat::getNaN(APFloat::IEEEsingle, true).isNegative());
|
|
|
|
EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNegative());
|
|
EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, true).isNegative());
|
|
}
|
|
|
|
TEST(APFloatTest, isNormal) {
|
|
APFloat t(APFloat::IEEEsingle, "0x1p+0");
|
|
EXPECT_TRUE(t.isNormal());
|
|
|
|
EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNormal());
|
|
EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNormal());
|
|
EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isNormal());
|
|
EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNormal());
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isNormal());
|
|
}
|
|
|
|
TEST(APFloatTest, isFinite) {
|
|
APFloat t(APFloat::IEEEsingle, "0x1p+0");
|
|
EXPECT_TRUE(t.isFinite());
|
|
EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isFinite());
|
|
EXPECT_TRUE(APFloat::getZero(APFloat::IEEEsingle, false).isFinite());
|
|
EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isFinite());
|
|
EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isFinite());
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p-149").isFinite());
|
|
}
|
|
|
|
TEST(APFloatTest, isInfinity) {
|
|
APFloat t(APFloat::IEEEsingle, "0x1p+0");
|
|
EXPECT_FALSE(t.isInfinity());
|
|
EXPECT_TRUE(APFloat::getInf(APFloat::IEEEsingle, false).isInfinity());
|
|
EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isInfinity());
|
|
EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isInfinity());
|
|
EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isInfinity());
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isInfinity());
|
|
}
|
|
|
|
TEST(APFloatTest, isNaN) {
|
|
APFloat t(APFloat::IEEEsingle, "0x1p+0");
|
|
EXPECT_FALSE(t.isNaN());
|
|
EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNaN());
|
|
EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNaN());
|
|
EXPECT_TRUE(APFloat::getNaN(APFloat::IEEEsingle, false).isNaN());
|
|
EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNaN());
|
|
EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isNaN());
|
|
}
|
|
|
|
TEST(APFloatTest, isFiniteNonZero) {
|
|
// Test positive/negative normal value.
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p+0").isFiniteNonZero());
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "-0x1p+0").isFiniteNonZero());
|
|
|
|
// Test positive/negative denormal value.
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p-149").isFiniteNonZero());
|
|
EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "-0x1p-149").isFiniteNonZero());
|
|
|
|
// Test +/- Infinity.
|
|
EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isFiniteNonZero());
|
|
EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, true).isFiniteNonZero());
|
|
|
|
// Test +/- Zero.
|
|
EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isFiniteNonZero());
|
|
EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, true).isFiniteNonZero());
|
|
|
|
// Test +/- qNaN. +/- dont mean anything with qNaN but paranoia can't hurt in
|
|
// this instance.
|
|
EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isFiniteNonZero());
|
|
EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, true).isFiniteNonZero());
|
|
|
|
// Test +/- sNaN. +/- dont mean anything with sNaN but paranoia can't hurt in
|
|
// this instance.
|
|
EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isFiniteNonZero());
|
|
EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, true).isFiniteNonZero());
|
|
}
|
|
|
|
TEST(APFloatTest, add) {
|
|
// Test Special Cases against each other and normal values.
|
|
|
|
// TODOS/NOTES:
|
|
// 1. Since we perform only default exception handling all operations with
|
|
// signaling NaNs should have a result that is a quiet NaN. Currently they
|
|
// return sNaN.
|
|
|
|
APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
|
|
APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
|
|
APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false);
|
|
APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true);
|
|
APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false);
|
|
APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false);
|
|
APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0");
|
|
APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0");
|
|
APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false);
|
|
APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, true);
|
|
|
|
const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact;
|
|
|
|
const unsigned NumTests = 169;
|
|
struct {
|
|
APFloat x;
|
|
APFloat y;
|
|
const char *result;
|
|
int status;
|
|
int category;
|
|
} SpecialCaseTests[NumTests] = {
|
|
{ PInf, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MInf, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PZero, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PZero, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PZero, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MZero, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MZero, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PNormalValue, PZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PNormalValue, PNormalValue, "0x1p+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, PSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, MSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, PSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, MSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MNormalValue, PZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MNormalValue, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MNormalValue, MNormalValue, "-0x1p+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, PSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, MSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, PSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, MSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PLargestValue, PZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, MZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, PLargestValue, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PLargestValue, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PLargestValue, PSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, MSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, PSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, MSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MLargestValue, PZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, MZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MLargestValue, MLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MLargestValue, PSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, MSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, PSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, MSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestValue, PZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PSmallestValue, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, PSmallestValue, "0x1p-148", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestValue, PSmallestNormalized, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MSmallestNormalized, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestValue, PZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MSmallestValue, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestValue, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestValue, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestValue, MSmallestValue, "-0x1p-148", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, PSmallestNormalized, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MSmallestNormalized, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestNormalized, PZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PSmallestNormalized, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PSmallestValue, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MSmallestValue, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PSmallestNormalized, "0x1p-125", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestNormalized, PZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MSmallestNormalized, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PSmallestValue, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MSmallestValue, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestNormalized, MSmallestNormalized, "-0x1p-125", APFloat::opOK, APFloat::fcNormal }
|
|
};
|
|
|
|
for (size_t i = 0; i < NumTests; ++i) {
|
|
APFloat x(SpecialCaseTests[i].x);
|
|
APFloat y(SpecialCaseTests[i].y);
|
|
APFloat::opStatus status = x.add(y, APFloat::rmNearestTiesToEven);
|
|
|
|
APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result);
|
|
|
|
EXPECT_TRUE(result.bitwiseIsEqual(x));
|
|
EXPECT_TRUE((int)status == SpecialCaseTests[i].status);
|
|
EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category);
|
|
}
|
|
}
|
|
|
|
TEST(APFloatTest, subtract) {
|
|
// Test Special Cases against each other and normal values.
|
|
|
|
// TODOS/NOTES:
|
|
// 1. Since we perform only default exception handling all operations with
|
|
// signaling NaNs should have a result that is a quiet NaN. Currently they
|
|
// return sNaN.
|
|
|
|
APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
|
|
APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
|
|
APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false);
|
|
APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true);
|
|
APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false);
|
|
APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false);
|
|
APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0");
|
|
APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0");
|
|
APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false);
|
|
APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, true);
|
|
|
|
const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact;
|
|
|
|
const unsigned NumTests = 169;
|
|
struct {
|
|
APFloat x;
|
|
APFloat y;
|
|
const char *result;
|
|
int status;
|
|
int category;
|
|
} SpecialCaseTests[NumTests] = {
|
|
{ PInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PInf, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PInf, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MInf, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PZero, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PZero, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PZero, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PZero, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PZero, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MZero, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MZero, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MZero, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MZero, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MZero, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PNormalValue, PZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PNormalValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PNormalValue, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PNormalValue, MNormalValue, "0x1p+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, PSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, MSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, PSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PNormalValue, MSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MNormalValue, PZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MNormalValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MNormalValue, PNormalValue, "-0x1p+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, PSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, MSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, PSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MNormalValue, MSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PLargestValue, PZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, MZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PLargestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PLargestValue, MLargestValue, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PLargestValue, PSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, MSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, PSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PLargestValue, MSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MLargestValue, PZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, MZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MLargestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, PLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MLargestValue, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MLargestValue, PSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, MSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, PSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MLargestValue, MSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestValue, PZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PSmallestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PSmallestValue, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestValue, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestValue, MSmallestValue, "0x1p-148", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, PSmallestNormalized, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MSmallestNormalized, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestValue, PZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MSmallestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MSmallestValue, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestValue, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestValue, PSmallestValue, "-0x1p-148", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestValue, PSmallestNormalized, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MSmallestNormalized, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestNormalized, PZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PSmallestNormalized, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PSmallestNormalized, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PSmallestValue, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MSmallestValue, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestNormalized, MSmallestNormalized, "0x1p-125", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestNormalized, PZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MSmallestNormalized, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MSmallestNormalized, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PSmallestValue, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MSmallestValue, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PSmallestNormalized, "-0x1p-125", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }
|
|
};
|
|
|
|
for (size_t i = 0; i < NumTests; ++i) {
|
|
APFloat x(SpecialCaseTests[i].x);
|
|
APFloat y(SpecialCaseTests[i].y);
|
|
APFloat::opStatus status = x.subtract(y, APFloat::rmNearestTiesToEven);
|
|
|
|
APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result);
|
|
|
|
EXPECT_TRUE(result.bitwiseIsEqual(x));
|
|
EXPECT_TRUE((int)status == SpecialCaseTests[i].status);
|
|
EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category);
|
|
}
|
|
}
|
|
|
|
TEST(APFloatTest, multiply) {
|
|
// Test Special Cases against each other and normal values.
|
|
|
|
// TODOS/NOTES:
|
|
// 1. Since we perform only default exception handling all operations with
|
|
// signaling NaNs should have a result that is a quiet NaN. Currently they
|
|
// return sNaN.
|
|
|
|
APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
|
|
APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
|
|
APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false);
|
|
APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true);
|
|
APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false);
|
|
APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false);
|
|
APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0");
|
|
APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0");
|
|
APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false);
|
|
APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, true);
|
|
|
|
const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact;
|
|
const int UnderflowStatus = APFloat::opUnderflow | APFloat::opInexact;
|
|
|
|
const unsigned NumTests = 169;
|
|
struct {
|
|
APFloat x;
|
|
APFloat y;
|
|
const char *result;
|
|
int status;
|
|
int category;
|
|
} SpecialCaseTests[NumTests] = {
|
|
{ PInf, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PInf, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MInf, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PZero, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PZero, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PZero, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MZero, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MZero, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MZero, PNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PNormalValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PNormalValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PNormalValue, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MNormalValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MNormalValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MNormalValue, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PLargestValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PLargestValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, PLargestValue, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PLargestValue, MLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PLargestValue, PSmallestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, MSmallestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, PSmallestNormalized, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, MSmallestNormalized, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MLargestValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MLargestValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, PLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MLargestValue, MLargestValue, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MLargestValue, PSmallestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, MSmallestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, PSmallestNormalized, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, MSmallestNormalized, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PSmallestValue, PNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, PLargestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MLargestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, PSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestValue, MSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestValue, PSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestValue, MSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MSmallestValue, PNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, PLargestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MLargestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, PSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestValue, MSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestValue, PSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestValue, MSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PSmallestNormalized, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestNormalized, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PSmallestNormalized, PNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PLargestValue, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MLargestValue, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestNormalized, MSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestNormalized, PSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestNormalized, MSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MSmallestNormalized, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestNormalized, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MSmallestNormalized, PNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PLargestValue, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MLargestValue, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestNormalized, MSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestNormalized, PSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestNormalized, MSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero }
|
|
};
|
|
|
|
for (size_t i = 0; i < NumTests; ++i) {
|
|
APFloat x(SpecialCaseTests[i].x);
|
|
APFloat y(SpecialCaseTests[i].y);
|
|
APFloat::opStatus status = x.multiply(y, APFloat::rmNearestTiesToEven);
|
|
|
|
APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result);
|
|
|
|
EXPECT_TRUE(result.bitwiseIsEqual(x));
|
|
EXPECT_TRUE((int)status == SpecialCaseTests[i].status);
|
|
EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category);
|
|
}
|
|
}
|
|
|
|
TEST(APFloatTest, divide) {
|
|
// Test Special Cases against each other and normal values.
|
|
|
|
// TODOS/NOTES:
|
|
// 1. Since we perform only default exception handling all operations with
|
|
// signaling NaNs should have a result that is a quiet NaN. Currently they
|
|
// return sNaN.
|
|
|
|
APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
|
|
APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
|
|
APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false);
|
|
APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true);
|
|
APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false);
|
|
APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false);
|
|
APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0");
|
|
APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0");
|
|
APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false);
|
|
APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, true);
|
|
|
|
const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact;
|
|
const int UnderflowStatus = APFloat::opUnderflow | APFloat::opInexact;
|
|
|
|
const unsigned NumTests = 169;
|
|
struct {
|
|
APFloat x;
|
|
APFloat y;
|
|
const char *result;
|
|
int status;
|
|
int category;
|
|
} SpecialCaseTests[NumTests] = {
|
|
{ PInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ MInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity },
|
|
{ PZero, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PZero, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PZero, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PZero, MSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MZero, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MZero, PNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, PSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MZero, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
{ QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
{ SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PNormalValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PNormalValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PNormalValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ PNormalValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PNormalValue, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, PLargestValue, "0x1p-128", UnderflowStatus, APFloat::fcNormal },
|
|
{ PNormalValue, MLargestValue, "-0x1p-128", UnderflowStatus, APFloat::fcNormal },
|
|
{ PNormalValue, PSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PNormalValue, MSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PNormalValue, PSmallestNormalized, "0x1p+126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PNormalValue, MSmallestNormalized, "-0x1p+126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MNormalValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MNormalValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ MNormalValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MNormalValue, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, PLargestValue, "-0x1p-128", UnderflowStatus, APFloat::fcNormal },
|
|
{ MNormalValue, MLargestValue, "0x1p-128", UnderflowStatus, APFloat::fcNormal },
|
|
{ MNormalValue, PSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MNormalValue, MSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MNormalValue, PSmallestNormalized, "-0x1p+126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MNormalValue, MSmallestNormalized, "0x1p+126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PLargestValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PLargestValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ PLargestValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, PLargestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, MLargestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PLargestValue, PSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PLargestValue, MSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PLargestValue, PSmallestNormalized, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PLargestValue, MSmallestNormalized, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MLargestValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MLargestValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MLargestValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ MLargestValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, PLargestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, MLargestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MLargestValue, PSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MLargestValue, MSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MLargestValue, PSmallestNormalized, "-inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ MLargestValue, MSmallestNormalized, "inf", OverflowStatus, APFloat::fcInfinity },
|
|
{ PSmallestValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ PSmallestValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PSmallestValue, PNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, PLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestValue, MLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestValue, PSmallestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MSmallestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, PSmallestNormalized, "0x1p-23", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestValue, MSmallestNormalized, "-0x1p-23", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ MSmallestValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MSmallestValue, PNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, PLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestValue, MLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestValue, PSmallestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MSmallestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, PSmallestNormalized, "-0x1p-23", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestValue, MSmallestNormalized, "0x1p-23", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestNormalized, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ PSmallestNormalized, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ PSmallestNormalized, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ PSmallestNormalized, PNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestNormalized, MLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ PSmallestNormalized, PSmallestValue, "0x1p+23", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MSmallestValue, "-0x1p+23", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, PSmallestNormalized, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ PSmallestNormalized, MSmallestNormalized, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestNormalized, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero },
|
|
{ MSmallestNormalized, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ MSmallestNormalized, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity },
|
|
{ MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
|
|
#if 0
|
|
// See Note 1.
|
|
{ MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
|
|
#endif
|
|
{ MSmallestNormalized, PNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestNormalized, MLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero },
|
|
{ MSmallestNormalized, PSmallestValue, "-0x1p+23", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MSmallestValue, "0x1p+23", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, PSmallestNormalized, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
{ MSmallestNormalized, MSmallestNormalized, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
|
|
};
|
|
|
|
for (size_t i = 0; i < NumTests; ++i) {
|
|
APFloat x(SpecialCaseTests[i].x);
|
|
APFloat y(SpecialCaseTests[i].y);
|
|
APFloat::opStatus status = x.divide(y, APFloat::rmNearestTiesToEven);
|
|
|
|
APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result);
|
|
|
|
EXPECT_TRUE(result.bitwiseIsEqual(x));
|
|
EXPECT_TRUE((int)status == SpecialCaseTests[i].status);
|
|
EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category);
|
|
}
|
|
}
|
|
|
|
TEST(APFloatTest, operatorOverloads) {
|
|
// This is mostly testing that these operator overloads compile.
|
|
APFloat One = APFloat(APFloat::IEEEsingle, "0x1p+0");
|
|
APFloat Two = APFloat(APFloat::IEEEsingle, "0x2p+0");
|
|
EXPECT_TRUE(Two.bitwiseIsEqual(One + One));
|
|
EXPECT_TRUE(One.bitwiseIsEqual(Two - One));
|
|
EXPECT_TRUE(Two.bitwiseIsEqual(One * Two));
|
|
EXPECT_TRUE(One.bitwiseIsEqual(Two / Two));
|
|
}
|
|
|
|
TEST(APFloatTest, abs) {
|
|
APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
|
|
APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
|
|
APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false);
|
|
APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true);
|
|
APFloat PQNaN = APFloat::getNaN(APFloat::IEEEsingle, false);
|
|
APFloat MQNaN = APFloat::getNaN(APFloat::IEEEsingle, true);
|
|
APFloat PSNaN = APFloat::getSNaN(APFloat::IEEEsingle, false);
|
|
APFloat MSNaN = APFloat::getSNaN(APFloat::IEEEsingle, true);
|
|
APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0");
|
|
APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0");
|
|
APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false);
|
|
APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true);
|
|
APFloat PSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, false);
|
|
APFloat MSmallestNormalized =
|
|
APFloat::getSmallestNormalized(APFloat::IEEEsingle, true);
|
|
|
|
EXPECT_TRUE(PInf.bitwiseIsEqual(abs(PInf)));
|
|
EXPECT_TRUE(PInf.bitwiseIsEqual(abs(MInf)));
|
|
EXPECT_TRUE(PZero.bitwiseIsEqual(abs(PZero)));
|
|
EXPECT_TRUE(PZero.bitwiseIsEqual(abs(MZero)));
|
|
EXPECT_TRUE(PQNaN.bitwiseIsEqual(abs(PQNaN)));
|
|
EXPECT_TRUE(PQNaN.bitwiseIsEqual(abs(MQNaN)));
|
|
EXPECT_TRUE(PSNaN.bitwiseIsEqual(abs(PSNaN)));
|
|
EXPECT_TRUE(PSNaN.bitwiseIsEqual(abs(MSNaN)));
|
|
EXPECT_TRUE(PNormalValue.bitwiseIsEqual(abs(PNormalValue)));
|
|
EXPECT_TRUE(PNormalValue.bitwiseIsEqual(abs(MNormalValue)));
|
|
EXPECT_TRUE(PLargestValue.bitwiseIsEqual(abs(PLargestValue)));
|
|
EXPECT_TRUE(PLargestValue.bitwiseIsEqual(abs(MLargestValue)));
|
|
EXPECT_TRUE(PSmallestValue.bitwiseIsEqual(abs(PSmallestValue)));
|
|
EXPECT_TRUE(PSmallestValue.bitwiseIsEqual(abs(MSmallestValue)));
|
|
EXPECT_TRUE(PSmallestNormalized.bitwiseIsEqual(abs(PSmallestNormalized)));
|
|
EXPECT_TRUE(PSmallestNormalized.bitwiseIsEqual(abs(MSmallestNormalized)));
|
|
}
|
|
|
|
TEST(APFloatTest, ilogb) {
|
|
EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle, "0x1p+0")));
|
|
EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle, "-0x1p+0")));
|
|
EXPECT_EQ(42, ilogb(APFloat(APFloat::IEEEsingle, "0x1p+42")));
|
|
EXPECT_EQ(-42, ilogb(APFloat(APFloat::IEEEsingle, "0x1p-42")));
|
|
|
|
EXPECT_EQ(APFloat::IEK_Inf,
|
|
ilogb(APFloat::getInf(APFloat::IEEEsingle, false)));
|
|
EXPECT_EQ(APFloat::IEK_Inf,
|
|
ilogb(APFloat::getInf(APFloat::IEEEsingle, true)));
|
|
EXPECT_EQ(APFloat::IEK_Zero,
|
|
ilogb(APFloat::getZero(APFloat::IEEEsingle, false)));
|
|
EXPECT_EQ(APFloat::IEK_Zero,
|
|
ilogb(APFloat::getZero(APFloat::IEEEsingle, true)));
|
|
EXPECT_EQ(APFloat::IEK_NaN,
|
|
ilogb(APFloat::getNaN(APFloat::IEEEsingle, false)));
|
|
EXPECT_EQ(APFloat::IEK_NaN,
|
|
ilogb(APFloat::getSNaN(APFloat::IEEEsingle, false)));
|
|
|
|
EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle, false)));
|
|
EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle, true)));
|
|
EXPECT_EQ(-126, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, false)));
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EXPECT_EQ(-126, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, true)));
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EXPECT_EQ(-126,
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ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle, false)));
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EXPECT_EQ(-126,
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ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle, true)));
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}
|
|
|
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TEST(APFloatTest, scalbn) {
|
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EXPECT_TRUE(
|
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APFloat(APFloat::IEEEsingle, "0x1p+0")
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.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 0)));
|
|
EXPECT_TRUE(
|
|
APFloat(APFloat::IEEEsingle, "0x1p+42")
|
|
.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 42)));
|
|
EXPECT_TRUE(
|
|
APFloat(APFloat::IEEEsingle, "0x1p-42")
|
|
.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), -42)));
|
|
|
|
APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
|
|
APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
|
|
APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false);
|
|
APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true);
|
|
APFloat QPNaN = APFloat::getNaN(APFloat::IEEEsingle, false);
|
|
APFloat QMNaN = APFloat::getNaN(APFloat::IEEEsingle, true);
|
|
APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false);
|
|
|
|
EXPECT_TRUE(PInf.bitwiseIsEqual(scalbn(PInf, 0)));
|
|
EXPECT_TRUE(MInf.bitwiseIsEqual(scalbn(MInf, 0)));
|
|
EXPECT_TRUE(PZero.bitwiseIsEqual(scalbn(PZero, 0)));
|
|
EXPECT_TRUE(MZero.bitwiseIsEqual(scalbn(MZero, 0)));
|
|
EXPECT_TRUE(QPNaN.bitwiseIsEqual(scalbn(QPNaN, 0)));
|
|
EXPECT_TRUE(QMNaN.bitwiseIsEqual(scalbn(QMNaN, 0)));
|
|
EXPECT_TRUE(SNaN.bitwiseIsEqual(scalbn(SNaN, 0)));
|
|
|
|
EXPECT_TRUE(
|
|
PInf.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 128)));
|
|
EXPECT_TRUE(MInf.bitwiseIsEqual(
|
|
scalbn(APFloat(APFloat::IEEEsingle, "-0x1p+0"), 128)));
|
|
EXPECT_TRUE(
|
|
PInf.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+127"), 1)));
|
|
EXPECT_TRUE(PZero.bitwiseIsEqual(
|
|
scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), -127)));
|
|
EXPECT_TRUE(MZero.bitwiseIsEqual(
|
|
scalbn(APFloat(APFloat::IEEEsingle, "-0x1p+0"), -127)));
|
|
EXPECT_TRUE(PZero.bitwiseIsEqual(
|
|
scalbn(APFloat(APFloat::IEEEsingle, "0x1p-126"), -1)));
|
|
EXPECT_TRUE(PZero.bitwiseIsEqual(
|
|
scalbn(APFloat(APFloat::IEEEsingle, "0x1p-126"), -1)));
|
|
}
|
|
}
|