mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 02:52:53 +02:00
c5f7a8c70e
This patch changes the design of GlobalAlias so that it doesn't take a ConstantExpr anymore. It now points directly to a GlobalObject, but its type is independent of the aliasee type. To avoid changing all alias related tests in this patches, I kept the common syntax @foo = alias i32* @bar to mean the same as now. The cases that used to use cast now use the more general syntax @foo = alias i16, i32* @bar. Note that GlobalAlias now behaves a bit more like GlobalVariable. We know that its type is always a pointer, so we omit the '*'. For the bitcode, a nice surprise is that we were writing both identical types already, so the format change is minimal. Auto upgrade is handled by looking through the casts and no new fields are needed for now. New bitcode will simply have different types for Alias and Aliasee. One last interesting point in the patch is that replaceAllUsesWith becomes smart enough to avoid putting a ConstantExpr in the aliasee. This seems better than checking and updating every caller. A followup patch will delete getAliasedGlobal now that it is redundant. Another patch will add support for an explicit offset. llvm-svn: 209007
290 lines
11 KiB
C++
290 lines
11 KiB
C++
//===- llvm/unittest/IR/ConstantsTest.cpp - Constants unit tests ----------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/IR/Constants.h"
|
|
#include "llvm/IR/DerivedTypes.h"
|
|
#include "llvm/IR/InstrTypes.h"
|
|
#include "llvm/IR/Instruction.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
namespace llvm {
|
|
namespace {
|
|
|
|
TEST(ConstantsTest, Integer_i1) {
|
|
IntegerType* Int1 = IntegerType::get(getGlobalContext(), 1);
|
|
Constant* One = ConstantInt::get(Int1, 1, true);
|
|
Constant* Zero = ConstantInt::get(Int1, 0);
|
|
Constant* NegOne = ConstantInt::get(Int1, static_cast<uint64_t>(-1), true);
|
|
EXPECT_EQ(NegOne, ConstantInt::getSigned(Int1, -1));
|
|
Constant* Undef = UndefValue::get(Int1);
|
|
|
|
// Input: @b = constant i1 add(i1 1 , i1 1)
|
|
// Output: @b = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getAdd(One, One));
|
|
|
|
// @c = constant i1 add(i1 -1, i1 1)
|
|
// @c = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getAdd(NegOne, One));
|
|
|
|
// @d = constant i1 add(i1 -1, i1 -1)
|
|
// @d = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getAdd(NegOne, NegOne));
|
|
|
|
// @e = constant i1 sub(i1 -1, i1 1)
|
|
// @e = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getSub(NegOne, One));
|
|
|
|
// @f = constant i1 sub(i1 1 , i1 -1)
|
|
// @f = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getSub(One, NegOne));
|
|
|
|
// @g = constant i1 sub(i1 1 , i1 1)
|
|
// @g = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getSub(One, One));
|
|
|
|
// @h = constant i1 shl(i1 1 , i1 1) ; undefined
|
|
// @h = constant i1 undef
|
|
EXPECT_EQ(Undef, ConstantExpr::getShl(One, One));
|
|
|
|
// @i = constant i1 shl(i1 1 , i1 0)
|
|
// @i = constant i1 true
|
|
EXPECT_EQ(One, ConstantExpr::getShl(One, Zero));
|
|
|
|
// @j = constant i1 lshr(i1 1, i1 1) ; undefined
|
|
// @j = constant i1 undef
|
|
EXPECT_EQ(Undef, ConstantExpr::getLShr(One, One));
|
|
|
|
// @m = constant i1 ashr(i1 1, i1 1) ; undefined
|
|
// @m = constant i1 undef
|
|
EXPECT_EQ(Undef, ConstantExpr::getAShr(One, One));
|
|
|
|
// @n = constant i1 mul(i1 -1, i1 1)
|
|
// @n = constant i1 true
|
|
EXPECT_EQ(One, ConstantExpr::getMul(NegOne, One));
|
|
|
|
// @o = constant i1 sdiv(i1 -1, i1 1) ; overflow
|
|
// @o = constant i1 true
|
|
EXPECT_EQ(One, ConstantExpr::getSDiv(NegOne, One));
|
|
|
|
// @p = constant i1 sdiv(i1 1 , i1 -1); overflow
|
|
// @p = constant i1 true
|
|
EXPECT_EQ(One, ConstantExpr::getSDiv(One, NegOne));
|
|
|
|
// @q = constant i1 udiv(i1 -1, i1 1)
|
|
// @q = constant i1 true
|
|
EXPECT_EQ(One, ConstantExpr::getUDiv(NegOne, One));
|
|
|
|
// @r = constant i1 udiv(i1 1, i1 -1)
|
|
// @r = constant i1 true
|
|
EXPECT_EQ(One, ConstantExpr::getUDiv(One, NegOne));
|
|
|
|
// @s = constant i1 srem(i1 -1, i1 1) ; overflow
|
|
// @s = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getSRem(NegOne, One));
|
|
|
|
// @t = constant i1 urem(i1 -1, i1 1)
|
|
// @t = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getURem(NegOne, One));
|
|
|
|
// @u = constant i1 srem(i1 1, i1 -1) ; overflow
|
|
// @u = constant i1 false
|
|
EXPECT_EQ(Zero, ConstantExpr::getSRem(One, NegOne));
|
|
}
|
|
|
|
TEST(ConstantsTest, IntSigns) {
|
|
IntegerType* Int8Ty = Type::getInt8Ty(getGlobalContext());
|
|
EXPECT_EQ(100, ConstantInt::get(Int8Ty, 100, false)->getSExtValue());
|
|
EXPECT_EQ(100, ConstantInt::get(Int8Ty, 100, true)->getSExtValue());
|
|
EXPECT_EQ(100, ConstantInt::getSigned(Int8Ty, 100)->getSExtValue());
|
|
EXPECT_EQ(-50, ConstantInt::get(Int8Ty, 206)->getSExtValue());
|
|
EXPECT_EQ(-50, ConstantInt::getSigned(Int8Ty, -50)->getSExtValue());
|
|
EXPECT_EQ(206U, ConstantInt::getSigned(Int8Ty, -50)->getZExtValue());
|
|
|
|
// Overflow is handled by truncation.
|
|
EXPECT_EQ(0x3b, ConstantInt::get(Int8Ty, 0x13b)->getSExtValue());
|
|
}
|
|
|
|
TEST(ConstantsTest, FP128Test) {
|
|
Type *FP128Ty = Type::getFP128Ty(getGlobalContext());
|
|
|
|
IntegerType *Int128Ty = Type::getIntNTy(getGlobalContext(), 128);
|
|
Constant *Zero128 = Constant::getNullValue(Int128Ty);
|
|
Constant *X = ConstantExpr::getUIToFP(Zero128, FP128Ty);
|
|
EXPECT_TRUE(isa<ConstantFP>(X));
|
|
}
|
|
|
|
TEST(ConstantsTest, PointerCast) {
|
|
LLVMContext &C(getGlobalContext());
|
|
Type *Int8PtrTy = Type::getInt8PtrTy(C);
|
|
Type *Int32PtrTy = Type::getInt32PtrTy(C);
|
|
Type *Int64Ty = Type::getInt64Ty(C);
|
|
VectorType *Int8PtrVecTy = VectorType::get(Int8PtrTy, 4);
|
|
VectorType *Int32PtrVecTy = VectorType::get(Int32PtrTy, 4);
|
|
VectorType *Int64VecTy = VectorType::get(Int64Ty, 4);
|
|
|
|
// ptrtoint i8* to i64
|
|
EXPECT_EQ(Constant::getNullValue(Int64Ty),
|
|
ConstantExpr::getPointerCast(
|
|
Constant::getNullValue(Int8PtrTy), Int64Ty));
|
|
|
|
// bitcast i8* to i32*
|
|
EXPECT_EQ(Constant::getNullValue(Int32PtrTy),
|
|
ConstantExpr::getPointerCast(
|
|
Constant::getNullValue(Int8PtrTy), Int32PtrTy));
|
|
|
|
// ptrtoint <4 x i8*> to <4 x i64>
|
|
EXPECT_EQ(Constant::getNullValue(Int64VecTy),
|
|
ConstantExpr::getPointerCast(
|
|
Constant::getNullValue(Int8PtrVecTy), Int64VecTy));
|
|
|
|
// bitcast <4 x i8*> to <4 x i32*>
|
|
EXPECT_EQ(Constant::getNullValue(Int32PtrVecTy),
|
|
ConstantExpr::getPointerCast(
|
|
Constant::getNullValue(Int8PtrVecTy), Int32PtrVecTy));
|
|
}
|
|
|
|
#define CHECK(x, y) { \
|
|
std::string __s; \
|
|
raw_string_ostream __o(__s); \
|
|
Instruction *__I = cast<ConstantExpr>(x)->getAsInstruction(); \
|
|
__I->print(__o); \
|
|
delete __I; \
|
|
__o.flush(); \
|
|
EXPECT_EQ(std::string(" <badref> = " y), __s); \
|
|
}
|
|
|
|
TEST(ConstantsTest, AsInstructionsTest) {
|
|
std::unique_ptr<Module> M(new Module("MyModule", getGlobalContext()));
|
|
|
|
Type *Int64Ty = Type::getInt64Ty(getGlobalContext());
|
|
Type *Int32Ty = Type::getInt32Ty(getGlobalContext());
|
|
Type *Int16Ty = Type::getInt16Ty(getGlobalContext());
|
|
Type *Int1Ty = Type::getInt1Ty(getGlobalContext());
|
|
Type *FloatTy = Type::getFloatTy(getGlobalContext());
|
|
Type *DoubleTy = Type::getDoubleTy(getGlobalContext());
|
|
|
|
Constant *Global = M->getOrInsertGlobal("dummy",
|
|
PointerType::getUnqual(Int32Ty));
|
|
Constant *Global2 = M->getOrInsertGlobal("dummy2",
|
|
PointerType::getUnqual(Int32Ty));
|
|
|
|
Constant *P0 = ConstantExpr::getPtrToInt(Global, Int32Ty);
|
|
Constant *P1 = ConstantExpr::getUIToFP(P0, FloatTy);
|
|
Constant *P2 = ConstantExpr::getUIToFP(P0, DoubleTy);
|
|
Constant *P3 = ConstantExpr::getTrunc(P0, Int1Ty);
|
|
Constant *P4 = ConstantExpr::getPtrToInt(Global2, Int32Ty);
|
|
Constant *P5 = ConstantExpr::getUIToFP(P4, FloatTy);
|
|
Constant *P6 = ConstantExpr::getBitCast(P4, VectorType::get(Int16Ty, 2));
|
|
|
|
Constant *One = ConstantInt::get(Int32Ty, 1);
|
|
|
|
#define P0STR "ptrtoint (i32** @dummy to i32)"
|
|
#define P1STR "uitofp (i32 ptrtoint (i32** @dummy to i32) to float)"
|
|
#define P2STR "uitofp (i32 ptrtoint (i32** @dummy to i32) to double)"
|
|
#define P3STR "ptrtoint (i32** @dummy to i1)"
|
|
#define P4STR "ptrtoint (i32** @dummy2 to i32)"
|
|
#define P5STR "uitofp (i32 ptrtoint (i32** @dummy2 to i32) to float)"
|
|
#define P6STR "bitcast (i32 ptrtoint (i32** @dummy2 to i32) to <2 x i16>)"
|
|
|
|
CHECK(ConstantExpr::getNeg(P0), "sub i32 0, " P0STR);
|
|
CHECK(ConstantExpr::getFNeg(P1), "fsub float -0.000000e+00, " P1STR);
|
|
CHECK(ConstantExpr::getNot(P0), "xor i32 " P0STR ", -1");
|
|
CHECK(ConstantExpr::getAdd(P0, P0), "add i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getAdd(P0, P0, false, true), "add nsw i32 " P0STR ", "
|
|
P0STR);
|
|
CHECK(ConstantExpr::getAdd(P0, P0, true, true), "add nuw nsw i32 " P0STR ", "
|
|
P0STR);
|
|
CHECK(ConstantExpr::getFAdd(P1, P1), "fadd float " P1STR ", " P1STR);
|
|
CHECK(ConstantExpr::getSub(P0, P0), "sub i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getFSub(P1, P1), "fsub float " P1STR ", " P1STR);
|
|
CHECK(ConstantExpr::getMul(P0, P0), "mul i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getFMul(P1, P1), "fmul float " P1STR ", " P1STR);
|
|
CHECK(ConstantExpr::getUDiv(P0, P0), "udiv i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getSDiv(P0, P0), "sdiv i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getFDiv(P1, P1), "fdiv float " P1STR ", " P1STR);
|
|
CHECK(ConstantExpr::getURem(P0, P0), "urem i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getSRem(P0, P0), "srem i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getFRem(P1, P1), "frem float " P1STR ", " P1STR);
|
|
CHECK(ConstantExpr::getAnd(P0, P0), "and i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getOr(P0, P0), "or i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getXor(P0, P0), "xor i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getShl(P0, P0), "shl i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getShl(P0, P0, true), "shl nuw i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getShl(P0, P0, false, true), "shl nsw i32 " P0STR ", "
|
|
P0STR);
|
|
CHECK(ConstantExpr::getLShr(P0, P0, false), "lshr i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getLShr(P0, P0, true), "lshr exact i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getAShr(P0, P0, false), "ashr i32 " P0STR ", " P0STR);
|
|
CHECK(ConstantExpr::getAShr(P0, P0, true), "ashr exact i32 " P0STR ", " P0STR);
|
|
|
|
CHECK(ConstantExpr::getSExt(P0, Int64Ty), "sext i32 " P0STR " to i64");
|
|
CHECK(ConstantExpr::getZExt(P0, Int64Ty), "zext i32 " P0STR " to i64");
|
|
CHECK(ConstantExpr::getFPTrunc(P2, FloatTy), "fptrunc double " P2STR
|
|
" to float");
|
|
CHECK(ConstantExpr::getFPExtend(P1, DoubleTy), "fpext float " P1STR
|
|
" to double");
|
|
|
|
CHECK(ConstantExpr::getExactUDiv(P0, P0), "udiv exact i32 " P0STR ", " P0STR);
|
|
|
|
CHECK(ConstantExpr::getSelect(P3, P0, P4), "select i1 " P3STR ", i32 " P0STR
|
|
", i32 " P4STR);
|
|
CHECK(ConstantExpr::getICmp(CmpInst::ICMP_EQ, P0, P4), "icmp eq i32 " P0STR
|
|
", " P4STR);
|
|
CHECK(ConstantExpr::getFCmp(CmpInst::FCMP_ULT, P1, P5), "fcmp ult float "
|
|
P1STR ", " P5STR);
|
|
|
|
std::vector<Constant*> V;
|
|
V.push_back(One);
|
|
// FIXME: getGetElementPtr() actually creates an inbounds ConstantGEP,
|
|
// not a normal one!
|
|
//CHECK(ConstantExpr::getGetElementPtr(Global, V, false),
|
|
// "getelementptr i32** @dummy, i32 1");
|
|
CHECK(ConstantExpr::getInBoundsGetElementPtr(Global, V),
|
|
"getelementptr inbounds i32** @dummy, i32 1");
|
|
|
|
CHECK(ConstantExpr::getExtractElement(P6, One), "extractelement <2 x i16> "
|
|
P6STR ", i32 1");
|
|
}
|
|
|
|
#ifdef GTEST_HAS_DEATH_TEST
|
|
#ifndef NDEBUG
|
|
TEST(ConstantsTest, ReplaceWithConstantTest) {
|
|
std::unique_ptr<Module> M(new Module("MyModule", getGlobalContext()));
|
|
|
|
Type *Int32Ty = Type::getInt32Ty(getGlobalContext());
|
|
Constant *One = ConstantInt::get(Int32Ty, 1);
|
|
|
|
Constant *Global =
|
|
M->getOrInsertGlobal("dummy", PointerType::getUnqual(Int32Ty));
|
|
Constant *GEP = ConstantExpr::getGetElementPtr(Global, One);
|
|
EXPECT_DEATH(Global->replaceAllUsesWith(GEP),
|
|
"this->replaceAllUsesWith\\(expr\\(this\\)\\) is NOT valid!");
|
|
}
|
|
|
|
TEST(ConstantsTest, ReplaceInAliasTest) {
|
|
std::unique_ptr<Module> M(new Module("MyModule", getGlobalContext()));
|
|
|
|
Type *Int32Ty = Type::getInt32Ty(getGlobalContext());
|
|
auto *Global = cast<GlobalObject>(M->getOrInsertGlobal("dummy", Int32Ty));
|
|
auto *GA = new GlobalAlias(Int32Ty, GlobalValue::ExternalLinkage, "alias",
|
|
Global, M.get());
|
|
EXPECT_DEATH(Global->replaceAllUsesWith(GA),
|
|
"replaceAliasUseWith cannot form an alias cycle");
|
|
}
|
|
|
|
#endif
|
|
#endif
|
|
|
|
#undef CHECK
|
|
|
|
} // end anonymous namespace
|
|
} // end namespace llvm
|