Add a bit to the CFGBlock to track when it contains a no-return

CFGElement. This will allow greatly simplifying the logic in
-Wreturn-type.

llvm-svn: 139593

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/Analysis/CFG.cpp b/clang/lib/Analysis/CFG.cpp
index 12ff84417fc..0775dcfb79e 100644
--- a/clang/lib/Analysis/CFG.cpp
+++ b/clang/lib/Analysis/CFG.cpp
@@ -603,6 +603,7 @@ CFGBlock *CFGBuilder::createBlock(bool add_successor) {
 /// directly tied to the exit block in order to be reachable.
 CFGBlock *CFGBuilder::createNoReturnBlock() {
   CFGBlock *B = createBlock(false);
+  B->setHasNoReturnElement();
   addSuccessor(B, &cfg->getExit());
   return B;
 }