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codegen support for dispose helpers for block literals. 

llvm-svn: 66320
This commit is contained in:
Mike Stump 2009-03-07 02:53:18 +00:00
parent aeb0ffd56c
commit 6f7d9f8774
2 changed files with 24 additions and 2 deletions
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24
clang/lib/CodeGen/CGBlocks.cpp
View File

@ -802,7 +802,29 @@ GenerateDestroyHelperFunction(bool BlockHasCopyDispose,
FunctionDecl::Static, false,
true);
CGF.StartFunction(FD, R, Fn, Args, SourceLocation());
// EmitStmt(BExpr->getBody());
llvm::Value *SrcObj = CGF.GetAddrOfLocalVar(Src);
llvm::Type *PtrPtrT;
PtrPtrT = llvm::PointerType::get(llvm::PointerType::get(T, 0), 0);
SrcObj = Builder.CreateBitCast(SrcObj, PtrPtrT);
SrcObj = Builder.CreateLoad(SrcObj);
for (unsigned i=0; i < NoteForHelper.size(); ++i) {
int flag = NoteForHelper[i].flag;
int index = NoteForHelper[i].index;
if ((NoteForHelper[i].flag & BLOCK_FIELD_IS_BYREF)
|| NoteForHelper[i].RequiresCopying) {
llvm::Value *Srcv = SrcObj;
Srcv = Builder.CreateStructGEP(Srcv, index);
Srcv = Builder.CreateBitCast(Srcv,
llvm::PointerType::get(PtrToInt8Ty, 0));
Srcv = Builder.CreateLoad(Srcv);
BuildBlockRelease(Srcv, flag);
}
}
CGF.FinishFunction();
return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty);

2
clang/test/CodeGen/blocks-1.c
View File

@ -1,5 +1,5 @@
// RUN: clang %s -emit-llvm -o %t -fblocks -f__block &&
// RUN: grep "_Block_object_dispose" %t | count 6 &&
// RUN: grep "_Block_object_dispose" %t | count 10 &&
// RUN: grep "__copy_helper_block_" %t | count 6 &&
// RUN: grep "__destroy_helper_block_" %t | count 6 &&
// RUN: grep "__Block_byref_id_object_copy_" %t | count 2 &&