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Attach message send metadata to the lookup as well as to the call (GNU runtime). 

llvm-svn: 102839
This commit is contained in:
David Chisnall 2010-05-01 12:56:56 +00:00
parent 737718d4f4
commit c0cf422d56
1 changed files with 10 additions and 7 deletions
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17
clang/lib/CodeGen/CGObjCGNU.cpp
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@ -642,6 +642,14 @@ CGObjCGNU::GenerateMessageSend(CodeGen::CodeGenFunction &CGF,
const llvm::FunctionType *impType =
Types.GetFunctionType(FnInfo, Method ? Method->isVariadic() : false);
llvm::Value *impMD[] = {
llvm::MDString::get(VMContext, Sel.getAsString()),
llvm::MDString::get(VMContext, Class ? Class->getNameAsString() :""),
llvm::ConstantInt::get(llvm::Type::getInt1Ty(VMContext), Class!=0)
};
llvm::MDNode *node = llvm::MDNode::get(VMContext, impMD, 3);
llvm::Value *imp;
// For sender-aware dispatch, we pass the sender as the third argument to a
// lookup function. When sending messages from C code, the sender is nil.
@ -679,6 +687,7 @@ CGObjCGNU::GenerateMessageSend(CodeGen::CodeGenFunction &CGF,
llvm::CallInst *slot =
Builder.CreateCall3(lookupFunction, ReceiverPtr, cmd, self);
slot->setOnlyReadsMemory();
slot->setMetadata(msgSendMDKind, node);
imp = Builder.CreateLoad(Builder.CreateStructGEP(slot, 4));
@ -696,14 +705,8 @@ CGObjCGNU::GenerateMessageSend(CodeGen::CodeGenFunction &CGF,
"objc_msg_lookup");
imp = Builder.CreateCall2(lookupFunction, Receiver, cmd);
cast<llvm::CallInst>(imp)->setMetadata(msgSendMDKind, node);
}
llvm::Value *impMD[] = {
llvm::MDString::get(VMContext, Sel.getAsString()),
llvm::MDString::get(VMContext, Class ? Class->getNameAsString() :""),
llvm::ConstantInt::get(llvm::Type::getInt1Ty(VMContext), Class!=0)
};
llvm::MDNode *node = llvm::MDNode::get(VMContext, impMD, 3);
RValue msgRet = CGF.EmitCall(FnInfo, imp, ReturnValueSlot(), ActualArgs,
0, msgSendMDKind, node);