[llvm-commits] [llvm] r90990 - /llvm/trunk/lib/Transforms/Scalar/LoopUnswitch.cpp

[Dan Gohman]

Author: djg
Date: Wed Dec  9 16:55:01 2009
New Revision: 90990

URL: http://llvm.org/viewvc/llvm-project?rev=90990&view=rev
Log:
Dereference loopHeader after checking for null rather than before.

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

Modified: llvm/trunk/lib/Transforms/Scalar/LoopUnswitch.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopUnswitch.cpp?rev=90990&r1=90989&r2=90990&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopUnswitch.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopUnswitch.cpp Wed Dec  9 16:55:01 2009
@@ -404,12 +404,13 @@
 bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val){
 
   initLoopData();
-  Function *F = loopHeader->getParent();
 
   // If LoopSimplify was unable to form a preheader, don't do any unswitching.
   if (!loopPreheader)
     return false;
 
+  Function *F = loopHeader->getParent();
+
   // If the condition is trivial, always unswitch.  There is no code growth for
   // this case.
   if (!IsTrivialUnswitchCondition(LoopCond)) {