From 28d89bd652e59441adbb8f68e3e9ac3ea621cbfa Mon Sep 17 00:00:00 2001
From: Mike Stump <mrs@apple.com>
Date: Mon, 4 Jan 2010 23:01:10 +0000
Subject: 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.

llvm-svn: 92531
---
 clang/lib/Sema/SemaDecl.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'clang/lib')

diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 30f90400007..a15c5fea213 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -1345,6 +1345,14 @@ Sema::ControlFlowKind Sema::CheckFallThrough(Stmt *Root) {
       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();
-- 
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