Teach -Wuninitialized to not warn about variables declared in C++ catch statements.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129102 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 15 insertions, 0 deletions

diff --git a/lib/Analysis/UninitializedValues.cpp b/lib/Analysis/UninitializedValues.cpp
index 062857d86e..d2eaff29ac 100644
--- a/lib/Analysis/UninitializedValues.cpp
+++ b/lib/Analysis/UninitializedValues.cpp
@@ -27,6 +27,7 @@ using namespace clang;
 
 static bool isTrackedVar(const VarDecl *vd, const DeclContext *dc) {
   if (vd->isLocalVarDecl() && !vd->hasGlobalStorage() &&
+      !vd->isExceptionVariable() &&
       vd->getDeclContext() == dc) {
     QualType ty = vd->getType();
     return ty->isScalarType() || ty->isVectorType();
diff --git a/test/SemaCXX/uninit-variables.cpp b/test/SemaCXX/uninit-variables.cpp
index 6fa59fe2a1..777734c825 100644
--- a/test/SemaCXX/uninit-variables.cpp
+++ b/test/SemaCXX/uninit-variables.cpp
@@ -78,3 +78,17 @@ void PR9625() {
     (void)static_cast<float>(x); // no-warning
   }
 }
+
+// Don't warn about variables declared in "catch"
+void RDar9251392_bar(const char *msg);
+
+void RDar9251392() {
+  try {
+    throw "hi";
+  }
+  catch (const char* msg) {
+    RDar9251392_bar(msg); // no-warning
+  }
+}
+
+