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Change CloneFunctionInto to always clone Argument attributes induvidually,

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rather than checking if the source and destination have the same number of
arguments and copying the attributes over directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179169 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Joey Gouly
2013-04-10 10:37:38 +00:00
parent 4d0e8a8a3e
commit 0f57a98a65
2 changed files with 47 additions and 23 deletions
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29
unittests/Transforms/Utils/Cloning.cpp
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@ -7,12 +7,15 @@
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/Instructions.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/IR/Argument.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/Transforms/Utils/Cloning.h"
#include "gtest/gtest.h"
using namespace llvm;
@ -143,4 +146,28 @@ TEST_F(CloneInstruction, Exact) {
EXPECT_TRUE(this->clone(SDiv)->isExact());
}
TEST_F(CloneInstruction, Attributes) {
Type *ArgTy1[] = { Type::getInt32PtrTy(context) };
FunctionType *FT1 = FunctionType::get(Type::getVoidTy(context), ArgTy1, false);
Function *F1 = Function::Create(FT1, Function::ExternalLinkage);
BasicBlock *BB = BasicBlock::Create(context, "", F1);
IRBuilder<> Builder(BB);
Builder.CreateRetVoid();
Function *F2 = Function::Create(FT1, Function::ExternalLinkage);
Attribute::AttrKind AK[] = { Attribute::NoCapture };
AttributeSet AS = AttributeSet::get(context, 0, AK);
Argument *A = F1->arg_begin();
A->addAttr(AS);
SmallVector<ReturnInst*, 4> Returns;
ValueToValueMapTy VMap;
VMap[A] = UndefValue::get(A->getType());
CloneFunctionInto(F2, F1, VMap, false, Returns);
EXPECT_FALSE(F2->arg_begin()->hasNoCaptureAttr());
}
}