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make try/catch objc runtime functions be lazily generated. 

rdar://6809612

llvm-svn: 69762
This commit is contained in:
Chris Lattner 2009-04-22 02:15:23 +00:00
parent d27f8d8c9f
commit a7c00b4c4c
1 changed files with 26 additions and 22 deletions
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48
clang/lib/CodeGen/CGObjCMac.cpp
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@ -317,7 +317,29 @@ public:
return llvm::ConstantExpr::getBitCast(Personality, Int8PtrTy);
}
llvm::Constant *UnwindResumeOrRethrowFn, *ObjCBeginCatchFn, *ObjCEndCatchFn;
llvm::Constant *getUnwindResumeOrRethrowFn() {
std::vector<const llvm::Type*> Params;
Params.push_back(Int8PtrTy);
return CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::VoidTy,
Params, false),
"_Unwind_Resume_or_Rethrow");
}
llvm::Constant *getObjCEndCatchFn() {
std::vector<const llvm::Type*> Params;
return CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::VoidTy,
Params, false),
"objc_end_catch");
}
llvm::Constant *getObjCBeginCatchFn() {
std::vector<const llvm::Type*> Params;
Params.push_back(Int8PtrTy);
return CGM.CreateRuntimeFunction(llvm::FunctionType::get(Int8PtrTy,
Params, false),
"objc_begin_catch");
}
const llvm::StructType *EHTypeTy;
const llvm::Type *EHTypePtrTy;
@ -3915,24 +3937,6 @@ ObjCNonFragileABITypesHelper::ObjCNonFragileABITypesHelper(CodeGen::CodeGenModul
"objc_msgSendSuper2_stret_fixup");
Params.clear();
Params.push_back(Int8PtrTy);
UnwindResumeOrRethrowFn =
CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::VoidTy,
Params,
false),
"_Unwind_Resume_or_Rethrow");
ObjCBeginCatchFn =
CGM.CreateRuntimeFunction(llvm::FunctionType::get(Int8PtrTy,
Params,
false),
"objc_begin_catch");
Params.clear();
ObjCEndCatchFn =
CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::VoidTy,
Params,
false),
"objc_end_catch");
// struct objc_typeinfo {
// const void** vtable; // objc_ehtype_vtable + 2
@ -5469,7 +5473,7 @@ CGObjCNonFragileABIMac::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF,
CGF.setInvokeDest(MatchHandler);
llvm::Value *ExcObject =
CGF.Builder.CreateCall(ObjCTypes.ObjCBeginCatchFn, Exc);
CGF.Builder.CreateCall(ObjCTypes.getObjCBeginCatchFn(), Exc);
// Bind the catch parameter if it exists.
if (CatchParam) {
@ -5512,7 +5516,7 @@ CGObjCNonFragileABIMac::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF,
llvm::BasicBlock *MatchEndHandler =
CGF.createBasicBlock("match.end.handler");
llvm::BasicBlock *Cont = CGF.createBasicBlock("invoke.cont");
CGF.Builder.CreateInvoke(ObjCTypes.ObjCEndCatchFn,
CGF.Builder.CreateInvoke(ObjCTypes.getObjCEndCatchFn(),
Cont, MatchEndHandler,
Args.begin(), Args.begin());
@ -5571,7 +5575,7 @@ CGObjCNonFragileABIMac::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF,
CGF.EmitBranch(FinallyEnd);
CGF.EmitBlock(FinallyRethrow);
CGF.Builder.CreateCall(ObjCTypes.UnwindResumeOrRethrowFn,
CGF.Builder.CreateCall(ObjCTypes.getUnwindResumeOrRethrowFn(),
CGF.Builder.CreateLoad(RethrowPtr));
CGF.Builder.CreateUnreachable();