Use isTrueWhenEqual and isFalseWhenEqual instead of assuming that

[oota-llvm.git] / lib / Analysis / ScalarEvolutionExpander.cpp

diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp
index 1d1339078de5d7c52e8a28ec839abe36ad2799fc..e9a634bdee2a5360786454c2adc0ef6062dfc990 100644 (file)
--- a/lib/Analysis/ScalarEvolutionExpander.cpp
+++ b/lib/Analysis/ScalarEvolutionExpander.cpp
@@ -642,6 +642,8 @@ static const Loop *GetRelevantLoop(const SCEV *S, LoopInfo &LI,
   llvm_unreachable("Unexpected SCEV type!");
 }
 
+namespace {
+
 /// LoopCompare - Compare loops by PickMostRelevantLoop.
 class LoopCompare {
   DominatorTree &DT;
@@ -668,6 +670,8 @@ public:
   }
 };
 
+}
+
 Value *SCEVExpander::visitAddExpr(const SCEVAddExpr *S) {
   const Type *Ty = SE.getEffectiveSCEVType(S->getType());
 
@@ -991,8 +995,7 @@ Value *SCEVExpander::expandAddRecExprLiterally(const SCEVAddRecExpr *S) {
   // Strip off any non-loop-dominating component from the addrec step.
   const SCEV *Step = Normalized->getStepRecurrence(SE);
   const SCEV *PostLoopScale = 0;
-  if (!Step->hasComputableLoopEvolution(L) &&
-      !Step->dominates(L->getHeader(), SE.DT)) {
+  if (!Step->dominates(L->getHeader(), SE.DT)) {
     PostLoopScale = Step;
     Step = SE.getIntegerSCEV(1, Normalized->getType());
     Normalized =