Replace mysterious code causing a g++-4.2 warning
with hopefully correct code that pleases g++-4.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40051 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/LoopPass.cpp b/lib/Analysis/LoopPass.cpp
index a5496a0..f14a9ba 100644
--- a/lib/Analysis/LoopPass.cpp
+++ b/lib/Analysis/LoopPass.cpp
@@ -261,12 +261,9 @@
 void LoopPass::preparePassManager(PMStack &PMS) {
 
   // Find LPPassManager 
-  while (!PMS.empty()) {
-    if (PMS.top()->getPassManagerType() > PMT_LoopPassManager)
-      PMS.pop();
-    else;
-    break;
-  }
+  while (!PMS.empty() &&
+         PMS.top()->getPassManagerType() > PMT_LoopPassManager)
+    PMS.pop();
 
   LPPassManager *LPPM = dynamic_cast<LPPassManager *>(PMS.top());
 
@@ -281,12 +278,9 @@
 void LoopPass::assignPassManager(PMStack &PMS,
                                  PassManagerType PreferredType) {
   // Find LPPassManager 
-  while (!PMS.empty()) {
-    if (PMS.top()->getPassManagerType() > PMT_LoopPassManager)
-      PMS.pop();
-    else;
-    break;
-  }
+  while (!PMS.empty() &&
+         PMS.top()->getPassManagerType() > PMT_LoopPassManager)
+    PMS.pop();
 
   LPPassManager *LPPM = dynamic_cast<LPPassManager *>(PMS.top());