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[SCEV] Cleanup SCEVInitRewriter. NFC.

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Set default value for IgnoreOtherLoops of SCEVInitRewriter::rewrite to true
to be consistent with SCEVPostIncRewriter which does not have this parameter
but behaves as it would be true.

This is follow up for rL326067.

llvm-svn: 326174
This commit is contained in:
Serguei Katkov 2018-02-27 06:39:31 +00:00
parent e35270bbad
commit 13c7f86c5f
1 changed files with 2 additions and 2 deletions
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4
lib/Analysis/ScalarEvolution.cpp
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@ -4093,7 +4093,7 @@ namespace {
class SCEVInitRewriter : public SCEVRewriteVisitor<SCEVInitRewriter> {
public:
static const SCEV *rewrite(const SCEV *S, const Loop *L, ScalarEvolution &SE,
bool IgnoreOtherLoops = false) {
bool IgnoreOtherLoops = true) {
SCEVInitRewriter Rewriter(L, SE);
const SCEV *Result = Rewriter.visit(S);
if (Rewriter.hasSeenLoopVariantSCEVUnknown())
@ -5020,7 +5020,7 @@ const SCEV *ScalarEvolution::createAddRecFromPHI(PHINode *PN) {
// by one iteration:
// PHI(f(0), f({1,+,1})) --> f({0,+,1})
const SCEV *Shifted = SCEVShiftRewriter::rewrite(BEValue, L, *this);
const SCEV *Start = SCEVInitRewriter::rewrite(Shifted, L, *this);
const SCEV *Start = SCEVInitRewriter::rewrite(Shifted, L, *this, false);
if (Shifted != getCouldNotCompute() &&
Start != getCouldNotCompute()) {
const SCEV *StartVal = getSCEV(StartValueV);