[OPENMP] Additional attributes for the pointer parameters.

Added attributes for better optimization of the OpenMP code.

llvm-svn: 329751

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp b/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
index 0d7386490df..1127562b51e 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
@@ -566,6 +566,7 @@ void CGOpenMPRuntimeNVPTX::WorkerFunctionState::createWorkerFunction(
       CGM.getTypes().GetFunctionType(*CGFI), llvm::GlobalValue::InternalLinkage,
       /*placeholder=*/"_worker", &CGM.getModule());
   CGM.SetInternalFunctionAttributes(GlobalDecl(), WorkerFn, *CGFI);
+  WorkerFn->setDoesNotRecurse();
 }
 
 bool CGOpenMPRuntimeNVPTX::isInSpmdExecutionMode() const {
@@ -1868,6 +1869,7 @@ static llvm::Value *emitReduceScratchpadFunction(
       CGM.getTypes().GetFunctionType(CGFI), llvm::GlobalValue::InternalLinkage,
       "_omp_reduction_load_and_reduce", &CGM.getModule());
   CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, CGFI);
+  Fn->setDoesNotRecurse();
   CodeGenFunction CGF(CGM);
   CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, CGFI, Args, Loc, Loc);
 
@@ -1989,6 +1991,7 @@ static llvm::Value *emitCopyToScratchpad(CodeGenModule &CGM,
       CGM.getTypes().GetFunctionType(CGFI), llvm::GlobalValue::InternalLinkage,
       "_omp_reduction_copy_to_scratchpad", &CGM.getModule());
   CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, CGFI);
+  Fn->setDoesNotRecurse();
   CodeGenFunction CGF(CGM);
   CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, CGFI, Args, Loc, Loc);
 
@@ -2070,6 +2073,7 @@ static llvm::Value *emitInterWarpCopyFunction(CodeGenModule &CGM,
       CGM.getTypes().GetFunctionType(CGFI), llvm::GlobalValue::InternalLinkage,
       "_omp_reduction_inter_warp_copy_func", &CGM.getModule());
   CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, CGFI);
+  Fn->setDoesNotRecurse();
   CodeGenFunction CGF(CGM);
   CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, CGFI, Args, Loc, Loc);
 
@@ -2320,6 +2324,7 @@ static llvm::Value *emitShuffleAndReduceFunction(
       CGM.getTypes().GetFunctionType(CGFI), llvm::GlobalValue::InternalLinkage,
       "_omp_reduction_shuffle_and_reduce_func", &CGM.getModule());
   CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, CGFI);
+  Fn->setDoesNotRecurse();
   CodeGenFunction CGF(CGM);
   CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, CGFI, Args, Loc, Loc);
 
@@ -2948,6 +2953,7 @@ llvm::Function *CGOpenMPRuntimeNVPTX::createParallelDataSharingWrapper(
       OutlinedParallelFn->getName() + "_wrapper", &CGM.getModule());
   CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, CGFI);
   Fn->setLinkage(llvm::GlobalValue::InternalLinkage);
+  Fn->setDoesNotRecurse();
 
   CodeGenFunction CGF(CGM, /*suppressNewContext=*/true);
   CGF.StartFunction(GlobalDecl(), Ctx.VoidTy, Fn, CGFI, WrapperArgs,