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| author | Gheorghe-Teodor Bercea <gheorghe-teod.bercea@ibm.com> | 2018-11-29 20:53:49 +0000 |
|---|---|---|
| committer | Gheorghe-Teodor Bercea <gheorghe-teod.bercea@ibm.com> | 2018-11-29 20:53:49 +0000 |
| commit | e1fea8ec605dd8710ffd680c51610f211da4b50c (patch) | |
| tree | 004087dfe9e8907a276d5dc530a35da6a6f4791c /lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp | |
| parent | ba2df16480239328ec4a1e68acdcb22051bbed0f (diff) | |
[OpenMP] Add a new version of the SPMD deinit kernel function
Summary: This patch adds a new runtime for the SPMD deinit kernel function which replaces the previous function. The new function takes as argument the flag which signals whether the runtime is required or not. This enables the compiler to optimize out the part of the deinit function which are not needed.
Reviewers: ABataev, caomhin
Reviewed By: ABataev
Subscribers: jholewinski, guansong, cfe-commits
Differential Revision: https://reviews.llvm.org/D54970
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@347915 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp')
| -rw-r--r-- | lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp b/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp index def3ba7c41..d4b599eeff 100644 --- a/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp +++ b/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp @@ -33,8 +33,8 @@ enum OpenMPRTLFunctionNVPTX { /// Call to void __kmpc_spmd_kernel_init(kmp_int32 thread_limit, /// int16_t RequiresOMPRuntime, int16_t RequiresDataSharing); OMPRTL_NVPTX__kmpc_spmd_kernel_init, - /// Call to void __kmpc_spmd_kernel_deinit(); - OMPRTL_NVPTX__kmpc_spmd_kernel_deinit, + /// Call to void __kmpc_spmd_kernel_deinit_v2(int16_t RequiresOMPRuntime); + OMPRTL_NVPTX__kmpc_spmd_kernel_deinit_v2, /// Call to void __kmpc_kernel_prepare_parallel(void /// *outlined_function, int16_t /// IsOMPRuntimeInitialized); @@ -1413,8 +1413,11 @@ void CGOpenMPRuntimeNVPTX::emitSPMDEntryFooter(CodeGenFunction &CGF, CGF.EmitBlock(OMPDeInitBB); // DeInitialize the OMP state in the runtime; called by all active threads. + llvm::Value *Args[] = {/*RequiresOMPRuntime=*/ + CGF.Builder.getInt16(RequiresFullRuntime ? 1 : 0)}; CGF.EmitRuntimeCall( - createNVPTXRuntimeFunction(OMPRTL_NVPTX__kmpc_spmd_kernel_deinit), None); + createNVPTXRuntimeFunction( + OMPRTL_NVPTX__kmpc_spmd_kernel_deinit_v2), Args); CGF.EmitBranch(EST.ExitBB); CGF.EmitBlock(EST.ExitBB); @@ -1597,11 +1600,12 @@ CGOpenMPRuntimeNVPTX::createNVPTXRuntimeFunction(unsigned Function) { RTLFn = CGM.CreateRuntimeFunction(FnTy, "__kmpc_spmd_kernel_init"); break; } - case OMPRTL_NVPTX__kmpc_spmd_kernel_deinit: { - // Build void __kmpc_spmd_kernel_deinit(); + case OMPRTL_NVPTX__kmpc_spmd_kernel_deinit_v2: { + // Build void __kmpc_spmd_kernel_deinit_v2(int16_t RequiresOMPRuntime); + llvm::Type *TypeParams[] = {CGM.Int16Ty}; auto *FnTy = - llvm::FunctionType::get(CGM.VoidTy, llvm::None, /*isVarArg*/ false); - RTLFn = CGM.CreateRuntimeFunction(FnTy, "__kmpc_spmd_kernel_deinit"); + llvm::FunctionType::get(CGM.VoidTy, TypeParams, /*isVarArg*/ false); + RTLFn = CGM.CreateRuntimeFunction(FnTy, "__kmpc_spmd_kernel_deinit_v2"); break; } case OMPRTL_NVPTX__kmpc_kernel_prepare_parallel: { |