[SYCL] Ignore file-scope asm during device-side SYCL compilation.

[bader]

LGTM. Thanks.

[eandrews]

LGTM Thanks!

[ArturGainullin]

Rebase for retesting.

clang/lib/CodeGen/CodeGenModule.cpp

 //===--- CodeGenModule.cpp - Emit LLVM Code from ASTs for a Module --------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
void CodeGenModule::EmitTopLevelDecl(Decl *D) {
 
   case Decl::FileScopeAsm: {
     // File-scope asm is ignored during device-side CUDA compilation.
     if (LangOpts.CUDA && LangOpts.CUDAIsDevice)
       break;
     // File-scope asm is ignored during device-side OpenMP compilation.
     if (LangOpts.OpenMPIsDevice)
       break;
+    // File-scope asm is ignored during device-side SYCL compilation.
+    if (LangOpts.SYCLIsDevice)
+      break;
     auto *AD = cast<FileScopeAsmDecl>(D);
     getModule().appendModuleInlineAsm(AD->getAsmString()->getString());
     break;
   }
 
   case Decl::Import: {
     auto *Import = cast<ImportDecl>(D);
 

clang/test/CodeGenSYCL/filescope_asm.c

+// RUN:  %clang_cc1 -fsycl -fsycl-is-device -triple spir64-unknown-unknown-sycldevice -emit-llvm %s -o - | FileCheck %s
+//
+// Check that file-scope asm is ignored during device-side SYCL compilation.
+//
+// CHECK-NOT: module asm "foo"
+__asm__("foo");