commit 01a39b601f91c66e6f359d160010724afd3254a6
author Ted Kremenek <kremenek@apple.com> Wed Mar 05 23:38:41 2014 +0000
committer Ted Kremenek <kremenek@apple.com> Wed Mar 05 23:38:41 2014 +0000
tree 6caa6d122c716b44bf3d2e935227c70129460a60
parent da3f4fd3fe864d4694955448457cb33e6045b238

[-Wunreachable-code] include some enum constants in "configuration value" heuristic

llvm-svn: 203026

clang/lib/Analysis/ReachableCode.cpp

diff --git a/clang/lib/Analysis/ReachableCode.cpp b/clang/lib/Analysis/ReachableCode.cpp
index f159642..b772145 100644
--- a/clang/lib/Analysis/ReachableCode.cpp
+++ b/clang/lib/Analysis/ReachableCode.cpp
@@ -376,6 +376,11 @@
     S = Ex->IgnoreParenCasts();
 
   switch (S->getStmtClass()) {
+    case Stmt::DeclRefExprClass: {
+      const DeclRefExpr *DR = cast<DeclRefExpr>(S);
+      const EnumConstantDecl *ED = dyn_cast<EnumConstantDecl>(DR->getDecl());
+      return ED ? isConfigurationValue(ED->getInitExpr()) : false;
+    }
     case Stmt::IntegerLiteralClass:
       return isExpandedFromConfigurationMacro(S);
     case Stmt::UnaryExprOrTypeTraitExprClass: