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Expunge a bunch of uses of DomSet from LoopSimplify. Many more remain.

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This is the beginning of work for PR1171.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35720 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2007-04-07 04:37:14 +00:00
parent f3a9e368f6
commit d44008ae40
1 changed files with 2 additions and 3 deletions
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5
lib/Transforms/Utils/LoopSimplify.cpp
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@ -314,7 +314,7 @@ BasicBlock *LoopSimplify::SplitBlockPredecessors(BasicBlock *BB,
// Can we eliminate this phi node now?
if (Value *V = PN->hasConstantValue(true)) {
if (!isa<Instruction>(V) ||
getAnalysis<DominatorSet>().dominates(cast<Instruction>(V), PN)) {
getAnalysis<ETForest>().dominates(cast<Instruction>(V), PN)) {
PN->replaceAllUsesWith(V);
if (AA) AA->deleteValue(PN);
BB->getInstList().erase(PN);
@ -542,10 +542,9 @@ Loop *LoopSimplify::SeparateNestedLoop(Loop *L) {
// Determine which blocks should stay in L and which should be moved out to
// the Outer loop now.
DominatorSet &DS = getAnalysis<DominatorSet>();
std::set<BasicBlock*> BlocksInL;
for (pred_iterator PI = pred_begin(Header), E = pred_end(Header); PI!=E; ++PI)
if (DS.dominates(Header, *PI))
if (EF->dominates(Header, *PI))
AddBlockAndPredsToSet(*PI, Header, BlocksInL);