void handleFloatingPointIV(Loop *L, PHINode *PH);
void rewriteNonIntegerIVs(Loop *L);
- void simplifyAndExtend(Loop *L, SCEVExpander &Rewriter, LPPassManager &LPM);
+ void simplifyAndExtend(Loop *L, SCEVExpander &Rewriter, LoopInfo *LI);
bool canLoopBeDeleted(Loop *L, SmallVector<RewritePhi, 8> &RewritePhiSet);
void rewriteLoopExitValues(Loop *L, SCEVExpander &Rewriter);
++BI;
}
- for (Loop::block_iterator LI = L->block_begin(), LE = L->block_end();
- LI != LE; ++LI) {
- for (BasicBlock::iterator BI = (*LI)->begin(), BE = (*LI)->end(); BI != BE;
- ++BI) {
- if (BI->mayHaveSideEffects())
- return false;
- }
- }
+ for (auto *BB : L->blocks())
+ if (any_of(*BB, [](Instruction &I) { return I.mayHaveSideEffects(); }))
+ return false;
return true;
}
///
void IndVarSimplify::simplifyAndExtend(Loop *L,
SCEVExpander &Rewriter,
- LPPassManager &LPM) {
+ LoopInfo *LI) {
SmallVector<WideIVInfo, 8> WideIVs;
SmallVector<PHINode*, 8> LoopPhis;
// Information about sign/zero extensions of CurrIV.
IndVarSimplifyVisitor Visitor(CurrIV, SE, TTI, DT);
- Changed |= simplifyUsersOfIV(CurrIV, SE, DT, &LPM, DeadInsts, &Visitor);
+ Changed |= simplifyUsersOfIV(CurrIV, SE, DT, LI, DeadInsts, &Visitor);
if (Visitor.WI.WidestNativeType) {
WideIVs.push_back(Visitor.WI);
return false;
// Optimistically handle other instructions.
- for (User::op_iterator OI = I->op_begin(), E = I->op_end(); OI != E; ++OI) {
- if (!Visited.insert(*OI).second)
+ for (Value *Op : I->operands()) {
+ if (!Visited.insert(Op).second)
continue;
- if (!hasConcreteDefImpl(*OI, Visited, Depth+1))
+ if (!hasConcreteDefImpl(Op, Visited, Depth+1))
return false;
}
return true;
const SCEV *ARStep = AR->getStepRecurrence(*SE);
// For constant IVCount, avoid truncation.
if (isa<SCEVConstant>(ARStart) && isa<SCEVConstant>(IVCount)) {
- const APInt &Start = cast<SCEVConstant>(ARStart)->getValue()->getValue();
- APInt Count = cast<SCEVConstant>(IVCount)->getValue()->getValue();
+ const APInt &Start = cast<SCEVConstant>(ARStart)->getAPInt();
+ APInt Count = cast<SCEVConstant>(IVCount)->getAPInt();
// Note that the post-inc value of BackedgeTakenCount may have overflowed
// above such that IVCount is now zero.
if (IVCount != BackedgeTakenCount && Count == 0) {
// other expressions involving loop IVs have been evaluated. This helps SCEV
// set no-wrap flags before normalizing sign/zero extension.
Rewriter.disableCanonicalMode();
- simplifyAndExtend(L, Rewriter, LPM);
+ simplifyAndExtend(L, Rewriter, LI);
// Check to see if this loop has a computable loop-invariant execution count.
// If so, this means that we can compute the final value of any expressions