[llvm-commits] [llvm] r92912 - /llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp

[Benjamin Kramer]

Author: d0k
Date: Thu Jan  7 07:50:07 2010
New Revision: 92912

URL: http://llvm.org/viewvc/llvm-project?rev=92912&view=rev
Log:
Use a do-while loop instead of while + boolean.

Modified:
    llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp?rev=92912&r1=92911&r2=92912&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp Thu Jan  7 07:50:07 2010
@@ -124,10 +124,9 @@
   
   FindLoopHeaders(F);
   
-  bool AnotherIteration = true, EverChanged = false;
-  while (AnotherIteration) {
-    AnotherIteration = false;
-    bool Changed = false;
+  bool Changed, EverChanged = false;
+  do {
+    Changed = false;
     for (Function::iterator I = F.begin(), E = F.end(); I != E;) {
       BasicBlock *BB = I;
       // Thread all of the branches we can over this block. 
@@ -176,9 +175,8 @@
         }
       }
     }
-    AnotherIteration = Changed;
     EverChanged |= Changed;
-  }
+  } while (Changed);
   
   LoopHeaders.clear();
   return EverChanged;