commit 2766ad27e867c40378f2e5c18094594aa112b7b4
author Ted Kremenek <kremenek@apple.com> Thu Mar 20 06:07:35 2014 +0000
committer Ted Kremenek <kremenek@apple.com> Thu Mar 20 06:07:35 2014 +0000
tree bda98c5b5110b2c195cea12cd10945618777303b
parent f3c93bb61b486d3b01de8d0b071688a35388474d

[-Wunreachable-code] constexpr functions can be used as configuration values.

llvm-svn: 204308

clang/lib/Analysis/ReachableCode.cpp

diff --git a/clang/lib/Analysis/ReachableCode.cpp b/clang/lib/Analysis/ReachableCode.cpp
index c79a94b..ffe576c 100644
--- a/clang/lib/Analysis/ReachableCode.cpp
+++ b/clang/lib/Analysis/ReachableCode.cpp
@@ -139,6 +139,11 @@
     S = Ex->IgnoreParenCasts();
 
   switch (S->getStmtClass()) {
+    case Stmt::CallExprClass: {
+      const FunctionDecl *Callee =
+        dyn_cast_or_null<FunctionDecl>(cast<CallExpr>(S)->getCalleeDecl());
+      return Callee ? Callee->isConstexpr() : false;
+    }
     case Stmt::DeclRefExprClass: {
       const DeclRefExpr *DR = cast<DeclRefExpr>(S);
       const ValueDecl *D = DR->getDecl();