From: Bill Wendling <isanbard@gmail.com>
Date: Thu, 6 Dec 2012 00:30:20 +0000 (+0000)
Subject: Set the 'MadeChange' variable if we are deleting blocks.
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=1c211640e53226540cd403948f5dd89c36c4beb8

Set the 'MadeChange' variable if we are deleting blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169455 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp
index 19b04d5bc3a..e6abfdf581f 100644
--- a/lib/Transforms/Scalar/CodeGenPrepare.cpp
+++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp
@@ -195,6 +195,7 @@ bool CodeGenPrepare::runOnFunction(Function &F) {
     }
 
     // Delete the dead blocks and any of their dead successors.
+    MadeChange |= !WorkList.empty();
     while (!WorkList.empty()) {
       BasicBlock *BB = *WorkList.begin();
       WorkList.erase(BB);