[OPENMP][NVPTX]Mark more functions as always_inline for better

performance.

Internally generated functions must be marked as always_inlines in most
cases. Patch marks some extra reduction function + outlined parallel
functions as always_inline for better performance, but only if the
optimization is requested.

llvm-svn: 361269

1 files changed, 10 insertions, 6 deletions

diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.cpp b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
index c3f60d7f60e..eb21bbde8d9 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
@@ -1274,9 +1274,11 @@ emitCombinerOrInitializer(CodeGenModule &CGM, QualType Ty,
   auto *Fn = llvm::Function::Create(FnTy, llvm::GlobalValue::InternalLinkage,
                                     Name, &CGM.getModule());
   CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, FnInfo);
-  Fn->removeFnAttr(llvm::Attribute::NoInline);
-  Fn->removeFnAttr(llvm::Attribute::OptimizeNone);
-  Fn->addFnAttr(llvm::Attribute::AlwaysInline);
+  if (CGM.getLangOpts().Optimize) {
+    Fn->removeFnAttr(llvm::Attribute::NoInline);
+    Fn->removeFnAttr(llvm::Attribute::OptimizeNone);
+    Fn->addFnAttr(llvm::Attribute::AlwaysInline);
+  }
   CodeGenFunction CGF(CGM);
   // Map "T omp_in;" variable to "*omp_in_parm" value in all expressions.
   // Map "T omp_out;" variable to "*omp_out_parm" value in all expressions.
@@ -4671,9 +4673,11 @@ emitTaskPrivateMappingFunction(CodeGenModule &CGM, SourceLocation Loc,
       &CGM.getModule());
   CGM.SetInternalFunctionAttributes(GlobalDecl(), TaskPrivatesMap,
                                     TaskPrivatesMapFnInfo);
-  TaskPrivatesMap->removeFnAttr(llvm::Attribute::NoInline);
-  TaskPrivatesMap->removeFnAttr(llvm::Attribute::OptimizeNone);
-  TaskPrivatesMap->addFnAttr(llvm::Attribute::AlwaysInline);
+  if (CGM.getLangOpts().Optimize) {
+    TaskPrivatesMap->removeFnAttr(llvm::Attribute::NoInline);
+    TaskPrivatesMap->removeFnAttr(llvm::Attribute::OptimizeNone);
+    TaskPrivatesMap->addFnAttr(llvm::Attribute::AlwaysInline);
+  }
   CodeGenFunction CGF(CGM);
   CGF.StartFunction(GlobalDecl(), C.VoidTy, TaskPrivatesMap,
                     TaskPrivatesMapFnInfo, Args, Loc, Loc);