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The code uses the index of the last element in the sorted array to determine the maximum size needed for the vector. But if the last index is a FunctionIndex(~0), attrIdxToArrayIdx will return 0 and the vector will have size 1. If there are any indices before FunctionIndex, those values would return a value larger than 0 from attrIdxToArrayIdx. So in this case we need to look in front of the FunctionIndex to get the true size needed. Differential Revision: https://reviews.llvm.org/D45632 llvm-svn: 330136
171 lines
6.3 KiB
C++
171 lines
6.3 KiB
C++
//===- llvm/unittest/IR/AttributesTest.cpp - Attributes 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/IR/Attributes.h"
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#include "llvm/IR/LLVMContext.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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TEST(Attributes, Uniquing) {
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LLVMContext C;
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Attribute AttrA = Attribute::get(C, Attribute::AlwaysInline);
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Attribute AttrB = Attribute::get(C, Attribute::AlwaysInline);
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EXPECT_EQ(AttrA, AttrB);
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AttributeList ASs[] = {AttributeList::get(C, 1, Attribute::ZExt),
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AttributeList::get(C, 2, Attribute::SExt)};
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AttributeList SetA = AttributeList::get(C, ASs);
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AttributeList SetB = AttributeList::get(C, ASs);
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EXPECT_EQ(SetA, SetB);
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}
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TEST(Attributes, Ordering) {
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LLVMContext C;
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Attribute Align4 = Attribute::get(C, Attribute::Alignment, 4);
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Attribute Align5 = Attribute::get(C, Attribute::Alignment, 5);
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Attribute Deref4 = Attribute::get(C, Attribute::Dereferenceable, 4);
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Attribute Deref5 = Attribute::get(C, Attribute::Dereferenceable, 5);
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EXPECT_TRUE(Align4 < Align5);
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EXPECT_TRUE(Align4 < Deref4);
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EXPECT_TRUE(Align4 < Deref5);
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EXPECT_TRUE(Align5 < Deref4);
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AttributeList ASs[] = {AttributeList::get(C, 2, Attribute::ZExt),
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AttributeList::get(C, 1, Attribute::SExt)};
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AttributeList SetA = AttributeList::get(C, ASs);
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AttributeList SetB = SetA.removeAttributes(C, 1, ASs[1].getAttributes(1));
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EXPECT_NE(SetA, SetB);
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}
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TEST(Attributes, AddAttributes) {
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LLVMContext C;
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AttributeList AL;
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AttrBuilder B;
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B.addAttribute(Attribute::NoReturn);
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AL = AL.addAttributes(C, AttributeList::FunctionIndex, AttributeSet::get(C, B));
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EXPECT_TRUE(AL.hasFnAttribute(Attribute::NoReturn));
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B.clear();
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B.addAttribute(Attribute::SExt);
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AL = AL.addAttributes(C, AttributeList::ReturnIndex, B);
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EXPECT_TRUE(AL.hasAttribute(AttributeList::ReturnIndex, Attribute::SExt));
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EXPECT_TRUE(AL.hasFnAttribute(Attribute::NoReturn));
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}
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TEST(Attributes, RemoveAlign) {
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LLVMContext C;
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Attribute AlignAttr = Attribute::getWithAlignment(C, 8);
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Attribute StackAlignAttr = Attribute::getWithStackAlignment(C, 32);
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AttrBuilder B_align_readonly;
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B_align_readonly.addAttribute(AlignAttr);
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B_align_readonly.addAttribute(Attribute::ReadOnly);
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AttrBuilder B_align;
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B_align.addAttribute(AlignAttr);
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AttrBuilder B_stackalign_optnone;
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B_stackalign_optnone.addAttribute(StackAlignAttr);
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B_stackalign_optnone.addAttribute(Attribute::OptimizeNone);
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AttrBuilder B_stackalign;
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B_stackalign.addAttribute(StackAlignAttr);
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AttributeSet AS = AttributeSet::get(C, B_align_readonly);
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EXPECT_TRUE(AS.getAlignment() == 8);
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EXPECT_TRUE(AS.hasAttribute(Attribute::ReadOnly));
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AS = AS.removeAttribute(C, Attribute::Alignment);
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EXPECT_FALSE(AS.hasAttribute(Attribute::Alignment));
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EXPECT_TRUE(AS.hasAttribute(Attribute::ReadOnly));
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AS = AttributeSet::get(C, B_align_readonly);
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AS = AS.removeAttributes(C, B_align);
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EXPECT_TRUE(AS.getAlignment() == 0);
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EXPECT_TRUE(AS.hasAttribute(Attribute::ReadOnly));
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AttributeList AL;
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AL = AL.addParamAttributes(C, 0, B_align_readonly);
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AL = AL.addAttributes(C, 0, B_stackalign_optnone);
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EXPECT_TRUE(AL.hasAttributes(0));
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EXPECT_TRUE(AL.hasAttribute(0, Attribute::StackAlignment));
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EXPECT_TRUE(AL.hasAttribute(0, Attribute::OptimizeNone));
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EXPECT_TRUE(AL.getStackAlignment(0) == 32);
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EXPECT_TRUE(AL.hasParamAttrs(0));
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EXPECT_TRUE(AL.hasParamAttr(0, Attribute::Alignment));
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EXPECT_TRUE(AL.hasParamAttr(0, Attribute::ReadOnly));
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EXPECT_TRUE(AL.getParamAlignment(0) == 8);
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AL = AL.removeParamAttribute(C, 0, Attribute::Alignment);
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EXPECT_FALSE(AL.hasParamAttr(0, Attribute::Alignment));
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EXPECT_TRUE(AL.hasParamAttr(0, Attribute::ReadOnly));
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EXPECT_TRUE(AL.hasAttribute(0, Attribute::StackAlignment));
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EXPECT_TRUE(AL.hasAttribute(0, Attribute::OptimizeNone));
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EXPECT_TRUE(AL.getStackAlignment(0) == 32);
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AL = AL.removeAttribute(C, 0, Attribute::StackAlignment);
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EXPECT_FALSE(AL.hasParamAttr(0, Attribute::Alignment));
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EXPECT_TRUE(AL.hasParamAttr(0, Attribute::ReadOnly));
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EXPECT_FALSE(AL.hasAttribute(0, Attribute::StackAlignment));
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EXPECT_TRUE(AL.hasAttribute(0, Attribute::OptimizeNone));
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AttributeList AL2;
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AL2 = AL2.addParamAttributes(C, 0, B_align_readonly);
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AL2 = AL2.addAttributes(C, 0, B_stackalign_optnone);
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AL2 = AL2.removeParamAttributes(C, 0, B_align);
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EXPECT_FALSE(AL2.hasParamAttr(0, Attribute::Alignment));
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EXPECT_TRUE(AL2.hasParamAttr(0, Attribute::ReadOnly));
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EXPECT_TRUE(AL2.hasAttribute(0, Attribute::StackAlignment));
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EXPECT_TRUE(AL2.hasAttribute(0, Attribute::OptimizeNone));
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EXPECT_TRUE(AL2.getStackAlignment(0) == 32);
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AL2 = AL2.removeAttributes(C, 0, B_stackalign);
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EXPECT_FALSE(AL2.hasParamAttr(0, Attribute::Alignment));
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EXPECT_TRUE(AL2.hasParamAttr(0, Attribute::ReadOnly));
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EXPECT_FALSE(AL2.hasAttribute(0, Attribute::StackAlignment));
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EXPECT_TRUE(AL2.hasAttribute(0, Attribute::OptimizeNone));
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}
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TEST(Attributes, AddMatchingAlignAttr) {
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LLVMContext C;
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AttributeList AL;
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AL = AL.addAttribute(C, AttributeList::FirstArgIndex,
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Attribute::getWithAlignment(C, 8));
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AL = AL.addAttribute(C, AttributeList::FirstArgIndex + 1,
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Attribute::getWithAlignment(C, 32));
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EXPECT_EQ(8U, AL.getParamAlignment(0));
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EXPECT_EQ(32U, AL.getParamAlignment(1));
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AttrBuilder B;
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B.addAttribute(Attribute::NonNull);
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B.addAlignmentAttr(8);
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AL = AL.addAttributes(C, AttributeList::FirstArgIndex, B);
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EXPECT_EQ(8U, AL.getParamAlignment(0));
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EXPECT_EQ(32U, AL.getParamAlignment(1));
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EXPECT_TRUE(AL.hasParamAttribute(0, Attribute::NonNull));
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}
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TEST(Attributes, EmptyGet) {
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LLVMContext C;
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AttributeList EmptyLists[] = {AttributeList(), AttributeList()};
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AttributeList AL = AttributeList::get(C, EmptyLists);
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EXPECT_TRUE(AL.isEmpty());
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}
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TEST(Attributes, OverflowGet) {
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LLVMContext C;
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std::pair<unsigned, Attribute> Attrs[] = { { AttributeList::ReturnIndex, Attribute::get(C, Attribute::SExt) },
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{ AttributeList::FunctionIndex, Attribute::get(C, Attribute::ReadOnly) } };
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AttributeList AL = AttributeList::get(C, Attrs);
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EXPECT_EQ(2U, AL.getNumAttrSets());
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}
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} // end anonymous namespace
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