Files
clang-p2996/llvm/unittests/IR/AttributesTest.cpp
Noah Goldstein e343af777e [SimplifyCFG][Attributes] Enabling sinking calls with differing number of attrsets
Prior impl would fail if the number of attribute sets on the two calls
wasn't the same which is unnecessary as long as we aren't throwing
away and must-preserve attrs.

Closes #110896
2024-10-02 15:15:07 -05:00

779 lines
26 KiB
C++

//===- 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-c/Core.h"
#include "llvm/ADT/FloatingPointMode.h"
#include "llvm/AsmParser/Parser.h"
#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/ConstantRange.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);
EXPECT_EQ(Deref5.cmpKind(Deref4), 0);
EXPECT_EQ(Align4.cmpKind(Align5), 0);
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() == MaybeAlign(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() == std::nullopt);
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() == MaybeAlign(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) == MaybeAlign(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() == MaybeAlign(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() == MaybeAlign(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, ArrayRef(Attribute::get(C1, Attribute::NoReturn)));
AttributeSet AS2 = AttributeSet::get(
C2, ArrayRef(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));
}
}
TEST(Attributes, RemoveParamAttributes) {
LLVMContext C;
AttributeList AL;
AL = AL.addParamAttribute(C, 1, Attribute::NoUndef);
EXPECT_EQ(AL.getNumAttrSets(), 4U);
AL = AL.addParamAttribute(C, 3, Attribute::NonNull);
EXPECT_EQ(AL.getNumAttrSets(), 6U);
AL = AL.removeParamAttributes(C, 3);
EXPECT_EQ(AL.getNumAttrSets(), 4U);
AL = AL.removeParamAttribute(C, 1, Attribute::NoUndef);
EXPECT_EQ(AL.getNumAttrSets(), 0U);
}
TEST(Attributes, ConstantRangeAttributeCAPI) {
LLVMContext C;
{
const unsigned NumBits = 8;
const uint64_t LowerWords[] = {0};
const uint64_t UpperWords[] = {42};
ConstantRange Range(APInt(NumBits, ArrayRef(LowerWords)),
APInt(NumBits, ArrayRef(UpperWords)));
Attribute RangeAttr = Attribute::get(C, Attribute::Range, Range);
auto OutAttr = unwrap(LLVMCreateConstantRangeAttribute(
wrap(&C), Attribute::Range, NumBits, LowerWords, UpperWords));
EXPECT_EQ(OutAttr, RangeAttr);
}
{
const unsigned NumBits = 128;
const uint64_t LowerWords[] = {1, 1};
const uint64_t UpperWords[] = {42, 42};
ConstantRange Range(APInt(NumBits, ArrayRef(LowerWords)),
APInt(NumBits, ArrayRef(UpperWords)));
Attribute RangeAttr = Attribute::get(C, Attribute::Range, Range);
auto OutAttr = unwrap(LLVMCreateConstantRangeAttribute(
wrap(&C), Attribute::Range, NumBits, LowerWords, UpperWords));
EXPECT_EQ(OutAttr, RangeAttr);
}
}
TEST(Attributes, CalleeAttributes) {
const char *IRString = R"IR(
declare void @f1(i32 %i)
declare void @f2(i32 range(i32 1, 2) %i)
define void @g1(i32 %i) {
call void @f1(i32 %i)
ret void
}
define void @g2(i32 %i) {
call void @f2(i32 %i)
ret void
}
define void @g3(i32 %i) {
call void @f1(i32 range(i32 3, 4) %i)
ret void
}
define void @g4(i32 %i) {
call void @f2(i32 range(i32 3, 4) %i)
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("g1")->getEntryBlock().front());
ASSERT_FALSE(I->getParamAttr(0, Attribute::Range).isValid());
}
{
auto *I = cast<CallBase>(&M->getFunction("g2")->getEntryBlock().front());
ASSERT_TRUE(I->getParamAttr(0, Attribute::Range).isValid());
}
{
auto *I = cast<CallBase>(&M->getFunction("g3")->getEntryBlock().front());
ASSERT_TRUE(I->getParamAttr(0, Attribute::Range).isValid());
}
{
auto *I = cast<CallBase>(&M->getFunction("g4")->getEntryBlock().front());
ASSERT_TRUE(I->getParamAttr(0, Attribute::Range).isValid());
}
}
TEST(Attributes, SetIntersect) {
LLVMContext C0, C1;
std::optional<AttributeSet> Res;
auto BuildAttr = [&](LLVMContext &C, Attribute::AttrKind Kind, uint64_t Int,
Type *Ty, ConstantRange &CR,
ArrayRef<ConstantRange> CRList) {
if (Attribute::isEnumAttrKind(Kind))
return Attribute::get(C, Kind);
if (Attribute::isTypeAttrKind(Kind))
return Attribute::get(C, Kind, Ty);
if (Attribute::isIntAttrKind(Kind))
return Attribute::get(C, Kind, Int);
if (Attribute::isConstantRangeAttrKind(Kind))
return Attribute::get(C, Kind, CR);
if (Attribute::isConstantRangeListAttrKind(Kind))
return Attribute::get(C, Kind, CRList);
std::abort();
};
for (unsigned i = Attribute::AttrKind::None + 1,
e = Attribute::AttrKind::EndAttrKinds;
i < e; ++i) {
Attribute::AttrKind Kind = static_cast<Attribute::AttrKind>(i);
Attribute::AttrKind Other =
Kind == Attribute::NoUndef ? Attribute::NonNull : Attribute::NoUndef;
AttributeSet AS0, AS1;
AttrBuilder AB0(C0);
AttrBuilder AB1(C1);
uint64_t V0, V1;
V0 = 0;
V1 = 0;
if (Attribute::intersectWithCustom(Kind)) {
switch (Kind) {
case Attribute::Alignment:
V0 = 2;
V1 = 4;
break;
case Attribute::Memory:
V0 = MemoryEffects::readOnly().toIntValue();
V1 = MemoryEffects::none().toIntValue();
break;
case Attribute::NoFPClass:
V0 = FPClassTest::fcNan | FPClassTest::fcInf;
V1 = FPClassTest::fcNan;
break;
case Attribute::Range:
break;
default:
ASSERT_FALSE(true);
}
} else {
V0 = (i & 2) + 1;
V1 = (2 - (i & 2)) + 1;
}
ConstantRange CR0(APInt(32, 0), APInt(32, 10));
ConstantRange CR1(APInt(32, 15), APInt(32, 20));
ConstantRange CRL0[] = {CR0};
ConstantRange CRL1[] = {CR0, CR1};
Type *T0 = Type::getInt32Ty(C0);
Type *T1 = Type::getInt64Ty(C0);
Attribute Attr0 = BuildAttr(C0, Kind, V0, T0, CR0, CRL0);
Attribute Attr1 = BuildAttr(
C1, Attribute::isEnumAttrKind(Kind) ? Other : Kind, V1, T1, CR1, CRL1);
bool CanDrop = Attribute::intersectWithAnd(Kind) ||
Attribute::intersectWithMin(Kind) ||
Attribute::intersectWithCustom(Kind);
AB0.addAttribute(Attr0);
AB1.addAttribute(Attr1);
Res = AS0.intersectWith(C0, AS1);
ASSERT_TRUE(Res.has_value());
ASSERT_EQ(AS0, *Res);
AS0 = AttributeSet::get(C0, AB0);
Res = AS0.intersectWith(C0, AS1);
ASSERT_EQ(Res.has_value(), CanDrop);
if (CanDrop)
ASSERT_FALSE(Res->hasAttributes());
AS1 = AttributeSet::get(C1, AB0);
Res = AS0.intersectWith(C0, AS1);
ASSERT_TRUE(Res.has_value());
ASSERT_EQ(AS0, *Res);
AS1 = AttributeSet::get(C1, AB1);
Res = AS0.intersectWith(C0, AS1);
if (!CanDrop) {
ASSERT_FALSE(Res.has_value());
continue;
}
if (Attribute::intersectWithAnd(Kind)) {
ASSERT_TRUE(Res.has_value());
ASSERT_FALSE(Res->hasAttributes());
AS1 = AS1.addAttribute(C1, Kind);
Res = AS0.intersectWith(C0, AS1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasAttributes());
ASSERT_TRUE(Res->hasAttribute(Kind));
ASSERT_FALSE(Res->hasAttribute(Other));
} else if (Attribute::intersectWithMin(Kind)) {
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasAttributes());
ASSERT_TRUE(Res->hasAttribute(Kind));
ASSERT_EQ(Res->getAttribute(Kind).getValueAsInt(), std::min(V0, V1));
} else if (Attribute::intersectWithCustom(Kind)) {
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasAttributes());
ASSERT_TRUE(Res->hasAttribute(Kind));
switch (Kind) {
case Attribute::Alignment:
ASSERT_EQ(Res->getAlignment().valueOrOne(), MaybeAlign(2).valueOrOne());
break;
case Attribute::Memory:
ASSERT_EQ(Res->getMemoryEffects(), MemoryEffects::readOnly());
break;
case Attribute::NoFPClass:
ASSERT_EQ(Res->getNoFPClass(), FPClassTest::fcNan);
break;
case Attribute::Range:
ASSERT_EQ(Res->getAttribute(Kind).getRange(),
ConstantRange(APInt(32, 0), APInt(32, 20)));
break;
default:
ASSERT_FALSE(true);
}
}
AS0 = AS0.addAttribute(C0, Attribute::AlwaysInline);
ASSERT_FALSE(AS0.intersectWith(C0, AS1).has_value());
}
}
TEST(Attributes, SetIntersectByValAlign) {
LLVMContext C;
AttributeSet AS0, AS1;
Attribute ByVal = Attribute::get(C, Attribute::ByVal, Type::getInt32Ty(C));
Attribute Align0 = Attribute::get(C, Attribute::Alignment, 4);
Attribute Align1 = Attribute::get(C, Attribute::Alignment, 8);
{
AttrBuilder AB0(C), AB1(C);
AB0.addAttribute(Align0);
AB1.addAttribute(Align1);
AB0.addAttribute(Attribute::NoUndef);
AS0 = AttributeSet::get(C, AB0);
AS1 = AttributeSet::get(C, AB1);
auto Res = AS0.intersectWith(C, AS1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasAttribute(Attribute::Alignment));
}
{
AttrBuilder AB0(C), AB1(C);
AB0.addAttribute(Align0);
AB0.addAttribute(ByVal);
AB1.addAttribute(Align1);
AB1.addAttribute(ByVal);
AB0.addAttribute(Attribute::NoUndef);
AS0 = AttributeSet::get(C, AB0);
AS1 = AttributeSet::get(C, AB1);
auto Res = AS0.intersectWith(C, AS1);
ASSERT_FALSE(Res.has_value());
}
{
AttrBuilder AB0(C), AB1(C);
AB0.addAttribute(Align0);
AB0.addAttribute(ByVal);
AB1.addAttribute(ByVal);
AB0.addAttribute(Attribute::NoUndef);
AS0 = AttributeSet::get(C, AB0);
AS1 = AttributeSet::get(C, AB1);
ASSERT_FALSE(AS0.intersectWith(C, AS1).has_value());
ASSERT_FALSE(AS1.intersectWith(C, AS0).has_value());
}
{
AttrBuilder AB0(C), AB1(C);
AB0.addAttribute(ByVal);
AB1.addAttribute(ByVal);
AB0.addAttribute(Attribute::NoUndef);
AS0 = AttributeSet::get(C, AB0);
AS1 = AttributeSet::get(C, AB1);
auto Res = AS0.intersectWith(C, AS1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasAttribute(Attribute::ByVal));
}
{
AttrBuilder AB0(C), AB1(C);
AB0.addAttribute(ByVal);
AB0.addAttribute(Align0);
AB1.addAttribute(ByVal);
AB1.addAttribute(Align0);
AB0.addAttribute(Attribute::NoUndef);
AS0 = AttributeSet::get(C, AB0);
AS1 = AttributeSet::get(C, AB1);
auto Res = AS0.intersectWith(C, AS1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasAttribute(Attribute::ByVal));
ASSERT_TRUE(Res->hasAttribute(Attribute::Alignment));
}
}
TEST(Attributes, ListIntersectDifferingMustPreserve) {
LLVMContext C;
std::optional<AttributeList> Res;
{
AttributeList AL0;
AttributeList AL1;
AL1 = AL1.addFnAttribute(C, Attribute::ReadOnly);
AL0 = AL0.addParamAttribute(C, 0, Attribute::SExt);
Res = AL0.intersectWith(C, AL1);
ASSERT_FALSE(Res.has_value());
Res = AL1.intersectWith(C, AL0);
ASSERT_FALSE(Res.has_value());
}
{
AttributeList AL0;
AttributeList AL1;
AL1 = AL1.addFnAttribute(C, Attribute::AlwaysInline);
AL0 = AL0.addParamAttribute(C, 0, Attribute::ReadOnly);
Res = AL0.intersectWith(C, AL1);
ASSERT_FALSE(Res.has_value());
Res = AL1.intersectWith(C, AL0);
ASSERT_FALSE(Res.has_value());
AL0 = AL0.addFnAttribute(C, Attribute::AlwaysInline);
AL1 = AL1.addParamAttribute(C, 1, Attribute::SExt);
Res = AL0.intersectWith(C, AL1);
ASSERT_FALSE(Res.has_value());
Res = AL1.intersectWith(C, AL0);
ASSERT_FALSE(Res.has_value());
}
}
TEST(Attributes, ListIntersect) {
LLVMContext C;
AttributeList AL0;
AttributeList AL1;
std::optional<AttributeList> Res;
AL0 = AL0.addRetAttribute(C, Attribute::NoUndef);
AL1 = AL1.addRetAttribute(C, Attribute::NoUndef);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_EQ(AL0, *Res);
AL0 = AL0.addParamAttribute(C, 1, Attribute::NoUndef);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(1, Attribute::NoUndef));
AL1 = AL1.addParamAttribute(C, 2, Attribute::NoUndef);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NoUndef));
AL0 = AL0.addParamAttribute(C, 2, Attribute::NoUndef);
AL1 = AL1.addParamAttribute(C, 1, Attribute::NoUndef);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_EQ(AL0, *Res);
AL0 = AL0.addParamAttribute(C, 2, Attribute::NonNull);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_NE(AL0, *Res);
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
AL0 = AL0.addRetAttribute(C, Attribute::NonNull);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_NE(AL0, *Res);
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasRetAttr(Attribute::NonNull));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
AL0 = AL0.addFnAttribute(C, Attribute::ReadOnly);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_NE(AL0, *Res);
ASSERT_FALSE(Res->hasFnAttr(Attribute::ReadOnly));
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasRetAttr(Attribute::NonNull));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
AL1 = AL1.addFnAttribute(C, Attribute::ReadOnly);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_NE(AL0, *Res);
ASSERT_TRUE(Res->hasFnAttr(Attribute::ReadOnly));
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasRetAttr(Attribute::NonNull));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
AL1 = AL1.addFnAttribute(C, Attribute::AlwaysInline);
Res = AL0.intersectWith(C, AL1);
ASSERT_FALSE(Res.has_value());
AL0 = AL0.addFnAttribute(C, Attribute::AlwaysInline);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasFnAttr(Attribute::AlwaysInline));
ASSERT_TRUE(Res->hasFnAttr(Attribute::ReadOnly));
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasRetAttr(Attribute::NonNull));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
AL1 = AL1.addParamAttribute(C, 2, Attribute::ReadNone);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasFnAttr(Attribute::AlwaysInline));
ASSERT_TRUE(Res->hasFnAttr(Attribute::ReadOnly));
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasRetAttr(Attribute::NonNull));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::ReadNone));
AL1 = AL1.addParamAttribute(C, 3, Attribute::ReadNone);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasFnAttr(Attribute::AlwaysInline));
ASSERT_TRUE(Res->hasFnAttr(Attribute::ReadOnly));
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasRetAttr(Attribute::NonNull));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::ReadNone));
ASSERT_FALSE(Res->hasParamAttr(3, Attribute::ReadNone));
AL0 = AL0.addParamAttribute(C, 3, Attribute::ReadNone);
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasFnAttr(Attribute::AlwaysInline));
ASSERT_TRUE(Res->hasFnAttr(Attribute::ReadOnly));
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasRetAttr(Attribute::NonNull));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::ReadNone));
ASSERT_TRUE(Res->hasParamAttr(3, Attribute::ReadNone));
AL0 = AL0.addParamAttribute(
C, {3}, Attribute::get(C, Attribute::ByVal, Type::getInt32Ty(C)));
Res = AL0.intersectWith(C, AL1);
ASSERT_FALSE(Res.has_value());
AL1 = AL1.addParamAttribute(
C, {3}, Attribute::get(C, Attribute::ByVal, Type::getInt32Ty(C)));
Res = AL0.intersectWith(C, AL1);
ASSERT_TRUE(Res.has_value());
ASSERT_TRUE(Res->hasFnAttr(Attribute::AlwaysInline));
ASSERT_TRUE(Res->hasFnAttr(Attribute::ReadOnly));
ASSERT_TRUE(Res->hasRetAttr(Attribute::NoUndef));
ASSERT_FALSE(Res->hasRetAttr(Attribute::NonNull));
ASSERT_TRUE(Res->hasParamAttr(1, Attribute::NoUndef));
ASSERT_TRUE(Res->hasParamAttr(2, Attribute::NoUndef));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::NonNull));
ASSERT_FALSE(Res->hasParamAttr(2, Attribute::ReadNone));
ASSERT_TRUE(Res->hasParamAttr(3, Attribute::ReadNone));
ASSERT_TRUE(Res->hasParamAttr(3, Attribute::ByVal));
}
} // end anonymous namespace