diff --git a/clang/lib/CodeGen/CGStmtOpenMP.cpp b/clang/lib/CodeGen/CGStmtOpenMP.cpp
--- a/clang/lib/CodeGen/CGStmtOpenMP.cpp
+++ b/clang/lib/CodeGen/CGStmtOpenMP.cpp
@@ -503,6 +503,13 @@
     F->setDoesNotThrow();
   F->setDoesNotRecurse();
 
+  // TODO: should not need this once amdgcn handles function calls properly.
+  if (CGM.getTriple().isAMDGCN()) {
+    F->removeFnAttr(llvm::Attribute::OptimizeNone);
+    F->removeFnAttr(llvm::Attribute::NoInline);
+    F->addFnAttr(llvm::Attribute::AlwaysInline);
+  }
+
   // Generate the function.
   CGF.StartFunction(CD, Ctx.VoidTy, F, FuncInfo, Args, Loc, Loc);
   Address ContextAddr = CGF.GetAddrOfLocalVar(CD->getContextParam());
@@ -664,9 +671,14 @@
     F->setDoesNotThrow();
   F->setDoesNotRecurse();
 
-  // Always inline the outlined function if optimizations are enabled.
-  if (CGM.getCodeGenOpts().OptimizationLevel != 0)
+  // Always inline the outlined function if optimizations are enabled or current
+  // target is amdgcn.
+  // TODO: amdgcn check should be removed once it handles function calls properly.
+  if (CGM.getCodeGenOpts().OptimizationLevel != 0 || CGM.getTriple().isAMDGCN()) {
+    F->removeFnAttr(llvm::Attribute::NoInline);
+    F->removeFnAttr(llvm::Attribute::OptimizeNone);
     F->addFnAttr(llvm::Attribute::AlwaysInline);
+  }
 
   // Generate the function.
   CGF.StartFunction(CD, Ctx.VoidTy, F, FuncInfo, TargetArgs,