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Add IRBuilder code for adding !tbaa.struct metadata tags to llvm.memcpy calls. 

llvm-svn: 164728
This commit is contained in:
Dan Gohman 2012-09-26 22:17:14 +00:00
parent e2ce1bb172
commit 099727fa4c
2 changed files with 11 additions and 4 deletions
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9
llvm/include/llvm/IRBuilder.h
View File

@ -285,12 +285,15 @@ public:
/// If the pointers aren't i8*, they will be converted. If a TBAA tag is
/// specified, it will be added to the instruction.
CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = 0) {
return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag);
bool isVolatile = false, MDNode *TBAATag = 0,
MDNode *TBAAStructTag = 0) {
return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag,
TBAAStructTag);
}
CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = 0);
bool isVolatile = false, MDNode *TBAATag = 0,
MDNode *TBAAStructTag = 0);
/// CreateMemMove - Create and insert a memmove between the specified
/// pointers. If the pointers aren't i8*, they will be converted. If a TBAA

6
llvm/lib/VMCore/IRBuilder.cpp
View File

@ -80,7 +80,7 @@ CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
CallInst *IRBuilderBase::
CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
bool isVolatile, MDNode *TBAATag) {
bool isVolatile, MDNode *TBAATag, MDNode *TBAAStructTag) {
Dst = getCastedInt8PtrValue(Dst);
Src = getCastedInt8PtrValue(Src);
@ -94,6 +94,10 @@ CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
// Set the TBAA info if present.
if (TBAATag)
CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
// Set the TBAA Struct info if present.
if (TBAAStructTag)
CI->setMetadata(LLVMContext::MD_tbaa_struct, TBAAStructTag);
return CI;
}