[llvm] r247514 - [CodeGen] Fix AtomicExpand invalidation issue caused by r247429.

[Ahmed Bougacha via llvm-commits]

Author: ab
Date: Sat Sep 12 13:51:23 2015
New Revision: 247514

URL: http://llvm.org/viewvc/llvm-project?rev=247514&view=rev
Log:
[CodeGen] Fix AtomicExpand invalidation issue caused by r247429.

Modified:
    llvm/trunk/lib/CodeGen/AtomicExpandPass.cpp

Modified: llvm/trunk/lib/CodeGen/AtomicExpandPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AtomicExpandPass.cpp?rev=247514&r1=247513&r2=247514&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AtomicExpandPass.cpp (original)
+++ llvm/trunk/lib/CodeGen/AtomicExpandPass.cpp Sat Sep 12 13:51:23 2015
@@ -505,8 +505,10 @@ bool AtomicExpand::isIdempotentRMW(Atomi
 }
 
 bool AtomicExpand::simplifyIdempotentRMW(AtomicRMWInst* RMWI) {
-  if (auto ResultingLoad = TLI->lowerIdempotentRMWIntoFencedLoad(RMWI))
-    return tryExpandAtomicLoad(ResultingLoad);
+  if (auto ResultingLoad = TLI->lowerIdempotentRMWIntoFencedLoad(RMWI)) {
+    tryExpandAtomicLoad(ResultingLoad);
+    return true;
+  }
   return false;
 }