[llvm-commits] [llvm] r102233 - /llvm/trunk/lib/Analysis/ScalarEvolution.cpp

[Dan Gohman]

Author: djg
Date: Fri Apr 23 20:38:36 2010
New Revision: 102233

URL: http://llvm.org/viewvc/llvm-project?rev=102233&view=rev
Log:
Use SimplifyICmpOperands in isKnownPredicate too.

Modified:
    llvm/trunk/lib/Analysis/ScalarEvolution.cpp

Modified: llvm/trunk/lib/Analysis/ScalarEvolution.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/ScalarEvolution.cpp?rev=102233&r1=102232&r2=102233&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Fri Apr 23 20:38:36 2010
@@ -4939,6 +4939,9 @@
 
 bool ScalarEvolution::isKnownPredicate(ICmpInst::Predicate Pred,
                                        const SCEV *LHS, const SCEV *RHS) {
+  // Canonicalize the inputs first.
+  (void)SimplifyICmpOperands(Pred, LHS, RHS);
+
   // If LHS or RHS is an addrec, check to see if the condition is true in
   // every iteration of the loop.
   if (const SCEVAddRecExpr *AR = dyn_cast<SCEVAddRecExpr>(LHS))