r236044 - Fix -fno-gnu-inline-asm doesn't catch file scope asm

[Steven Wu]

Author: steven_wu
Date: Tue Apr 28 16:49:09 2015
New Revision: 236044

URL: http://llvm.org/viewvc/llvm-project?rev=236044&view=rev
Log:
Fix -fno-gnu-inline-asm doesn't catch file scope asm

Summary:
FileScopeAsm should be treated the same as funcion level inline asm.
-fno-gnu-inline-asm should trigger an error if file scope asm is used.
I missed this case from r226340. This should not affect ms-extension
because it is not allowed in the file scope.

Reviewers: bob.wilson, rnk

Reviewed By: rnk

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D9328

Modified:
    cfe/trunk/lib/Parse/Parser.cpp
    cfe/trunk/test/Parser/no-gnu-inline-asm.c

Modified: cfe/trunk/lib/Parse/Parser.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/Parser.cpp?rev=236044&r1=236043&r2=236044&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/Parser.cpp (original)
+++ cfe/trunk/lib/Parse/Parser.cpp Tue Apr 28 16:49:09 2015
@@ -1253,6 +1253,10 @@ ExprResult Parser::ParseSimpleAsm(Source
   assert(Tok.is(tok::kw_asm) && "Not an asm!");
   SourceLocation Loc = ConsumeToken();
 
+  // Check if GNU-styple InlineAsm is disabled.
+  if (!getLangOpts().GNUAsm)
+    Diag(Loc, diag::err_gnu_inline_asm_disabled);
+
   if (Tok.is(tok::kw_volatile)) {
     // Remove from the end of 'asm' to the end of 'volatile'.
     SourceRange RemovalRange(PP.getLocForEndOfToken(Loc),

Modified: cfe/trunk/test/Parser/no-gnu-inline-asm.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Parser/no-gnu-inline-asm.c?rev=236044&r1=236043&r2=236044&view=diff
==============================================================================
--- cfe/trunk/test/Parser/no-gnu-inline-asm.c (original)
+++ cfe/trunk/test/Parser/no-gnu-inline-asm.c Tue Apr 28 16:49:09 2015
@@ -1,5 +1,6 @@
 // RUN: %clang_cc1 %s -triple i686-apple-darwin -verify -fsyntax-only -fno-gnu-inline-asm
 
+asm ("INST r1, 0"); // expected-error {{GNU-style inline assembly is disabled}}
 void f (void) {
   long long foo = 0, bar;
   asm volatile("INST %0, %1" : "=r"(foo) : "r"(bar)); // expected-error {{GNU-style inline assembly is disabled}}