OSchip
/
llvm-project
mirror of https://github.com/THU-DSP-LAB/llvm-project.git
13
0
Fork 6
Code Issues Packages Projects Releases Wiki Activity
llvm-project/llvm/unittests/IR/AttributesTest.cpp

298 lines
9.9 KiB
C++
Raw Blame History

//===- llvm/unittest/IR/AttributesTest.cpp - Attributes unit tests --------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/Attributes.h"
#include "llvm/AsmParser/Parser.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/SourceMgr.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(Attributes, Uniquing) {
LLVMContext C;
Attribute AttrA = Attribute::get(C, Attribute::AlwaysInline);
Attribute AttrB = Attribute::get(C, Attribute::AlwaysInline);
EXPECT_EQ(AttrA, AttrB);
AttributeList ASs[] = {AttributeList::get(C, 1, Attribute::ZExt),
AttributeList::get(C, 2, Attribute::SExt)};
AttributeList SetA = AttributeList::get(C, ASs);
AttributeList SetB = AttributeList::get(C, ASs);
EXPECT_EQ(SetA, SetB);
}
TEST(Attributes, Ordering) {
LLVMContext C;
Attribute Align4 = Attribute::get(C, Attribute::Alignment, 4);
Attribute Align5 = Attribute::get(C, Attribute::Alignment, 5);
Attribute Deref4 = Attribute::get(C, Attribute::Dereferenceable, 4);
Attribute Deref5 = Attribute::get(C, Attribute::Dereferenceable, 5);
EXPECT_TRUE(Align4 < Align5);
EXPECT_TRUE(Align4 < Deref4);
EXPECT_TRUE(Align4 < Deref5);
EXPECT_TRUE(Align5 < Deref4);
Attribute ByVal = Attribute::get(C, Attribute::ByVal, Type::getInt32Ty(C));
EXPECT_FALSE(ByVal < Attribute::get(C, Attribute::ZExt));
EXPECT_TRUE(ByVal < Align4);
EXPECT_FALSE(ByVal < ByVal);
AttributeList ASs[] = {AttributeList::get(C, 2, Attribute::ZExt),
AttributeList::get(C, 1, Attribute::SExt)};
AttributeList SetA = AttributeList::get(C, ASs);
AttributeList SetB =
SetA.removeParamAttributes(C, 0, ASs[1].getParamAttrs(0));
EXPECT_NE(SetA, SetB);
}
TEST(Attributes, AddAttributes) {
LLVMContext C;
AttributeList AL;
AttrBuilder B(C);
B.addAttribute(Attribute::NoReturn);
AL = AL.addFnAttributes(C, AttrBuilder(C, AttributeSet::get(C, B)));
EXPECT_TRUE(AL.hasFnAttr(Attribute::NoReturn));
B.clear();
B.addAttribute(Attribute::SExt);
AL = AL.addRetAttributes(C, B);
EXPECT_TRUE(AL.hasRetAttr(Attribute::SExt));
EXPECT_TRUE(AL.hasFnAttr(Attribute::NoReturn));
}
TEST(Attributes, RemoveAlign) {
LLVMContext C;
Attribute AlignAttr = Attribute::getWithAlignment(C, Align(8));
Attribute StackAlignAttr = Attribute::getWithStackAlignment(C, Align(32));
AttrBuilder B_align_readonly(C);
B_align_readonly.addAttribute(AlignAttr);
B_align_readonly.addAttribute(Attribute::ReadOnly);
AttributeMask B_align;
B_align.addAttribute(AlignAttr);
AttrBuilder B_stackalign_optnone(C);
B_stackalign_optnone.addAttribute(StackAlignAttr);
B_stackalign_optnone.addAttribute(Attribute::OptimizeNone);
AttributeMask B_stackalign;
B_stackalign.addAttribute(StackAlignAttr);
AttributeSet AS = AttributeSet::get(C, B_align_readonly);
EXPECT_TRUE(AS.getAlignment() == 8);
EXPECT_TRUE(AS.hasAttribute(Attribute::ReadOnly));
AS = AS.removeAttribute(C, Attribute::Alignment);
EXPECT_FALSE(AS.hasAttribute(Attribute::Alignment));
EXPECT_TRUE(AS.hasAttribute(Attribute::ReadOnly));
AS = AttributeSet::get(C, B_align_readonly);
AS = AS.removeAttributes(C, B_align);
EXPECT_TRUE(AS.getAlignment() == 0);
EXPECT_TRUE(AS.hasAttribute(Attribute::ReadOnly));
AttributeList AL;
AL = AL.addParamAttributes(C, 0, B_align_readonly);
AL = AL.addRetAttributes(C, B_stackalign_optnone);
EXPECT_TRUE(AL.hasRetAttrs());
EXPECT_TRUE(AL.hasRetAttr(Attribute::StackAlignment));
EXPECT_TRUE(AL.hasRetAttr(Attribute::OptimizeNone));
EXPECT_TRUE(AL.getRetStackAlignment() == 32);
EXPECT_TRUE(AL.hasParamAttrs(0));
EXPECT_TRUE(AL.hasParamAttr(0, Attribute::Alignment));
EXPECT_TRUE(AL.hasParamAttr(0, Attribute::ReadOnly));
EXPECT_TRUE(AL.getParamAlignment(0) == 8);
AL = AL.removeParamAttribute(C, 0, Attribute::Alignment);
EXPECT_FALSE(AL.hasParamAttr(0, Attribute::Alignment));
EXPECT_TRUE(AL.hasParamAttr(0, Attribute::ReadOnly));
EXPECT_TRUE(AL.hasRetAttr(Attribute::StackAlignment));
EXPECT_TRUE(AL.hasRetAttr(Attribute::OptimizeNone));
EXPECT_TRUE(AL.getRetStackAlignment() == 32);
AL = AL.removeRetAttribute(C, Attribute::StackAlignment);
EXPECT_FALSE(AL.hasParamAttr(0, Attribute::Alignment));
EXPECT_TRUE(AL.hasParamAttr(0, Attribute::ReadOnly));
EXPECT_FALSE(AL.hasRetAttr(Attribute::StackAlignment));
EXPECT_TRUE(AL.hasRetAttr(Attribute::OptimizeNone));
AttributeList AL2;
AL2 = AL2.addParamAttributes(C, 0, B_align_readonly);
AL2 = AL2.addRetAttributes(C, B_stackalign_optnone);
AL2 = AL2.removeParamAttributes(C, 0, B_align);
EXPECT_FALSE(AL2.hasParamAttr(0, Attribute::Alignment));
EXPECT_TRUE(AL2.hasParamAttr(0, Attribute::ReadOnly));
EXPECT_TRUE(AL2.hasRetAttr(Attribute::StackAlignment));
EXPECT_TRUE(AL2.hasRetAttr(Attribute::OptimizeNone));
EXPECT_TRUE(AL2.getRetStackAlignment() == 32);
AL2 = AL2.removeRetAttributes(C, B_stackalign);
EXPECT_FALSE(AL2.hasParamAttr(0, Attribute::Alignment));
EXPECT_TRUE(AL2.hasParamAttr(0, Attribute::ReadOnly));
EXPECT_FALSE(AL2.hasRetAttr(Attribute::StackAlignment));
EXPECT_TRUE(AL2.hasRetAttr(Attribute::OptimizeNone));
}
TEST(Attributes, AddMatchingAlignAttr) {
LLVMContext C;
AttributeList AL;
AL = AL.addParamAttribute(C, 0, Attribute::getWithAlignment(C, Align(8)));
AL = AL.addParamAttribute(C, 1, Attribute::getWithAlignment(C, Align(32)));
EXPECT_EQ(Align(8), AL.getParamAlignment(0));
EXPECT_EQ(Align(32), AL.getParamAlignment(1));
AttrBuilder B(C);
B.addAttribute(Attribute::NonNull);
B.addAlignmentAttr(8);
AL = AL.addParamAttributes(C, 0, B);
EXPECT_EQ(Align(8), AL.getParamAlignment(0));
EXPECT_EQ(Align(32), AL.getParamAlignment(1));
EXPECT_TRUE(AL.hasParamAttr(0, Attribute::NonNull));
}
TEST(Attributes, EmptyGet) {
LLVMContext C;
AttributeList EmptyLists[] = {AttributeList(), AttributeList()};
AttributeList AL = AttributeList::get(C, EmptyLists);
EXPECT_TRUE(AL.isEmpty());
}
TEST(Attributes, OverflowGet) {
LLVMContext C;
std::pair<unsigned, Attribute> Attrs[] = { { AttributeList::ReturnIndex, Attribute::get(C, Attribute::SExt) },
{ AttributeList::FunctionIndex, Attribute::get(C, Attribute::ReadOnly) } };
AttributeList AL = AttributeList::get(C, Attrs);
EXPECT_EQ(2U, AL.getNumAttrSets());
}
TEST(Attributes, StringRepresentation) {
LLVMContext C;
StructType *Ty = StructType::create(Type::getInt32Ty(C), "mystruct");
// Insufficiently careful printing can result in byval(%mystruct = { i32 })
Attribute A = Attribute::getWithByValType(C, Ty);
EXPECT_EQ(A.getAsString(), "byval(%mystruct)");
A = Attribute::getWithByValType(C, Type::getInt32Ty(C));
EXPECT_EQ(A.getAsString(), "byval(i32)");
}
TEST(Attributes, HasParentContext) {
LLVMContext C1, C2;
{
Attribute Attr1 = Attribute::get(C1, Attribute::AlwaysInline);
Attribute Attr2 = Attribute::get(C2, Attribute::AlwaysInline);
EXPECT_TRUE(Attr1.hasParentContext(C1));
EXPECT_FALSE(Attr1.hasParentContext(C2));
EXPECT_FALSE(Attr2.hasParentContext(C1));
EXPECT_TRUE(Attr2.hasParentContext(C2));
}
{
AttributeSet AS1 = AttributeSet::get(
C1, makeArrayRef(Attribute::get(C1, Attribute::NoReturn)));
AttributeSet AS2 = AttributeSet::get(
C2, makeArrayRef(Attribute::get(C2, Attribute::NoReturn)));
EXPECT_TRUE(AS1.hasParentContext(C1));
EXPECT_FALSE(AS1.hasParentContext(C2));
EXPECT_FALSE(AS2.hasParentContext(C1));
EXPECT_TRUE(AS2.hasParentContext(C2));
}
{
AttributeList AL1 = AttributeList::get(C1, 1, Attribute::ZExt);
AttributeList AL2 = AttributeList::get(C2, 1, Attribute::ZExt);
EXPECT_TRUE(AL1.hasParentContext(C1));
EXPECT_FALSE(AL1.hasParentContext(C2));
EXPECT_FALSE(AL2.hasParentContext(C1));
EXPECT_TRUE(AL2.hasParentContext(C2));
}
}
TEST(Attributes, AttributeListPrinting) {
LLVMContext C;
{
std::string S;
raw_string_ostream OS(S);
AttributeList AL;
AL.addFnAttribute(C, Attribute::AlwaysInline).print(OS);
EXPECT_EQ(S, "AttributeList[\n"
" { function => alwaysinline }\n"
"]\n");
}
{
std::string S;
raw_string_ostream OS(S);
AttributeList AL;
AL.addRetAttribute(C, Attribute::SExt).print(OS);
EXPECT_EQ(S, "AttributeList[\n"
" { return => signext }\n"
"]\n");
}
{
std::string S;
raw_string_ostream OS(S);
AttributeList AL;
AL.addParamAttribute(C, 5, Attribute::ZExt).print(OS);
EXPECT_EQ(S, "AttributeList[\n"
" { arg(5) => zeroext }\n"
"]\n");
}
}
TEST(Attributes, MismatchedABIAttrs) {
const char *IRString = R"IR(
declare void @f1(i32* byval(i32))
define void @g() {
call void @f1(i32* null)
ret void
}
declare void @f2(i32* preallocated(i32))
define void @h() {
call void @f2(i32* null)
ret void
}
declare void @f3(i32* inalloca(i32))
define void @i() {
call void @f3(i32* null)
ret void
}
)IR";
SMDiagnostic Err;
LLVMContext Context;
std::unique_ptr<Module> M = parseAssemblyString(IRString, Err, Context);
ASSERT_TRUE(M);
{
auto *I = cast<CallBase>(&M->getFunction("g")->getEntryBlock().front());
ASSERT_TRUE(I->isByValArgument(0));
ASSERT_TRUE(I->getParamByValType(0));
}
{
auto *I = cast<CallBase>(&M->getFunction("h")->getEntryBlock().front());
ASSERT_TRUE(I->getParamPreallocatedType(0));
}
{
auto *I = cast<CallBase>(&M->getFunction("i")->getEntryBlock().front());
ASSERT_TRUE(I->isInAllocaArgument(0));
ASSERT_TRUE(I->getParamInAllocaType(0));
}
}
} // end anonymous namespace
Reference in New Issue View Git Blame Copy Permalink