Make clang to mark static stack allocations with lifetime markers to enable a more aggressive stack coloring.
Patch by John McCall with help by Shuxin Yang.
rdar://13115369

llvm-svn: 177819
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 1737744..9f604e8 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -86,6 +86,7 @@
     NSConcreteGlobalBlock(0), NSConcreteStackBlock(0),
     BlockObjectAssign(0), BlockObjectDispose(0),
     BlockDescriptorType(0), GenericBlockLiteralType(0),
+    LifetimeStartFn(0), LifetimeEndFn(0),
     SanitizerBlacklist(CGO.SanitizerBlacklistFile),
     SanOpts(SanitizerBlacklist.isIn(M) ?
             SanitizerOptions::Disabled : LangOpts.Sanitize) {