AU.addRequired<LoopInfo>();
AU.addRequired<DominatorSet>();
AU.addRequired<DominatorTree>();
+ AU.addRequired<ETForest>();
AU.addPreserved<LoopInfo>();
AU.addPreserved<DominatorSet>();
/// FindPHIToPartitionLoops - The first part of loop-nestification is to find a
/// PHI node that tells us how to partition the loops.
-static PHINode *FindPHIToPartitionLoops(Loop *L, DominatorSet &DS,
- AliasAnalysis *AA) {
+static PHINode *FindPHIToPartitionLoops(Loop *L, ETForest *EF,
+ AliasAnalysis *AA) {
for (BasicBlock::iterator I = L->getHeader()->begin(); isa<PHINode>(I); ) {
PHINode *PN = cast<PHINode>(I);
++I;
if (Value *V = PN->hasConstantValue())
- if (!isa<Instruction>(V) || DS.dominates(cast<Instruction>(V), PN)) {
+ if (!isa<Instruction>(V) || EF->dominates(cast<Instruction>(V), PN)) {
// This is a degenerate PHI already, don't modify it!
PN->replaceAllUsesWith(V);
if (AA) AA->deleteValue(PN);
/// created.
///
Loop *LoopSimplify::SeparateNestedLoop(Loop *L) {
- PHINode *PN = FindPHIToPartitionLoops(L, getAnalysis<DominatorSet>(), AA);
+ ETForest *EF = getAnalysisToUpdate<ETForest>();
+ PHINode *PN = FindPHIToPartitionLoops(L, EF, AA);
if (PN == 0) return 0; // No known way to partition.
// Pull out all predecessors that have varying values in the loop. This