arpith-jacob added inline comments.
================
Comment at: lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp:539-542
+ llvm::Value *EndArgs[] = {emitUpdateLocation(CGF, Loc), ThreadID};
+ CGF.EmitRuntimeCall(
+ createNVPTXRuntimeFunction(OMPRTL_NVPTX__kmpc_end_serialized_parallel),
+ EndArgs);
----------------
ABataev wrote:
> It is better to emit this code as PrePostAction, so it is called upon exit of
> any cleanup scope
Alexey, do you mean clean up during the execution of the serialized parallel
region? Is something like this what you have in mind? Thanks.
auto &&SeqGen = [this, Fn, &CapturedVars, &RTLoc, &Loc](CodeGenFunction &CGF,
PrePostActionTy &) {
auto &&CodeGen = [..](..) {
llvm::Value *Args[] = {RTLoc, ThreadID};
CGF.EmitRuntimeCall(
createNVPTXRuntimeFunction(OMPRTL_NVPTX__kmpc_serialized_parallel),
Args);
llvm::SmallVector<llvm::Value *, 16> OutlinedFnArgs;
OutlinedFnArgs.push_back(
llvm::ConstantPointerNull::get(CGM.Int32Ty->getPointerTo()));
OutlinedFnArgs.push_back(
llvm::ConstantPointerNull::get(CGM.Int32Ty->getPointerTo()));
OutlinedFnArgs.append(CapturedVars.begin(), CapturedVars.end());
CGF.EmitCallOrInvoke(Fn, OutlinedFnArgs);
};
RegionCodeGenTy RCG(CodeGen);
CommonActionTy Action(
nullptr, llvm::None,
createNVPTXRuntimeFunction(OMPRTL_NVPTX__kmpc_end_serialized_parallel),
{emitUpdateLocation(CGF, Loc), ThreadID});
RCG.setAction(Action);
RCG(CGF);
};
https://reviews.llvm.org/D28145
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