From feb1945fee429064f47c4edff45667c036ef01a6 Mon Sep 17 00:00:00 2001
From: Mike Stump <mrs@apple.com>
Date: Tue, 15 Dec 2009 03:11:10 +0000
Subject: This patch should fix PR2461. It allows clang to apply the noreturn
 attribute to function pointers. It also fixes Sema to check function pointers
 for the noreturn attribute when checking for fallthrough.

Patch by Chip Davis, with a slight fix to pass the testsuite.

llvm-svn: 91408
---
 clang/lib/Sema/SemaDecl.cpp | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

(limited to 'clang/lib/Sema/SemaDecl.cpp')

diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 64305b443ec..14d2377784d 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -1265,11 +1265,10 @@ Sema::ControlFlowKind Sema::CheckFallThrough(Stmt *Root) {
         NoReturnEdge = true;
         HasFakeEdge = true;
       } else if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(CEE)) {
-        if (FunctionDecl *FD = dyn_cast<FunctionDecl>(DRE->getDecl())) {
-          if (FD->hasAttr<NoReturnAttr>()) {
-            NoReturnEdge = true;
-            HasFakeEdge = true;
-          }
+        ValueDecl *VD = DRE->getDecl();
+        if (VD->hasAttr<NoReturnAttr>()) {
+          NoReturnEdge = true;
+          HasFakeEdge = true;
         }
       }
     }
-- 
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