[cfe-commits] r92531 - in /cfe/trunk: lib/Sema/SemaDecl.cpp test/Sema/ms-fuzzy-asm.c

[Mike Stump]

Author: mrs
Date: Mon Jan  4 17:01:10 2010
New Revision: 92531

URL: http://llvm.org/viewvc/llvm-project?rev=92531&view=rev
Log:
Avoid warnings for functions that return a value using MS-style inline
assembly code.  This avoids changing the bahvior when normal asm("")
statements are used.

The type of code affected would be:

  void* t4(void) { __asm mov eax, fs:[0x10] }

I hope people like this version, if not, let me know.

Modified:
    cfe/trunk/lib/Sema/SemaDecl.cpp
    cfe/trunk/test/Sema/ms-fuzzy-asm.c

Modified: cfe/trunk/lib/Sema/SemaDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDecl.cpp?rev=92531&r1=92530&r2=92531&view=diff

==============================================================================
--- cfe/trunk/lib/Sema/SemaDecl.cpp (original)
+++ cfe/trunk/lib/Sema/SemaDecl.cpp Mon Jan  4 17:01:10 2010
@@ -1345,6 +1345,14 @@
       HasFakeEdge = true;
       continue;
     }
+    if (const AsmStmt *AS = dyn_cast<AsmStmt>(S)) {
+      if (AS->isMSAsm()) {
+        HasFakeEdge = true;
+        HasLiveReturn = true;
+        continue;
+      }
+    }
+
     bool NoReturnEdge = false;
     if (CallExpr *C = dyn_cast<CallExpr>(S)) {
       Expr *CEE = C->getCallee()->IgnoreParenCasts();

Modified: cfe/trunk/test/Sema/ms-fuzzy-asm.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/ms-fuzzy-asm.c?rev=92531&r1=92530&r2=92531&view=diff

==============================================================================
--- cfe/trunk/test/Sema/ms-fuzzy-asm.c (original)
+++ cfe/trunk/test/Sema/ms-fuzzy-asm.c Mon Jan  4 17:01:10 2010
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -verify -fms-extensions
-// XFAIL: *
 
 #define M __asm int 0x2c
 #define M2 int