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DeleteTriviallyDeadInstructions is always passed the

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DeadInsts ivar, just use it directly.

llvm-svn: 60330
This commit is contained in:
Chris Lattner 2008-12-01 06:14:28 +00:00
parent d6be279b4d
commit db86ff62f9
1 changed files with 9 additions and 10 deletions
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19
lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -205,7 +205,7 @@ private:
void StrengthReduceStridedIVUsers(const SCEVHandle &Stride,
IVUsersOfOneStride &Uses,
Loop *L, bool isOnlyStride);
void DeleteTriviallyDeadInstructions(SetVector<Instruction*> &Insts);
void DeleteTriviallyDeadInstructions();
};
}
@ -238,11 +238,10 @@ Value *LoopStrengthReduce::getCastedVersionOf(Instruction::CastOps opcode,
/// DeleteTriviallyDeadInstructions - If any of the instructions is the
/// specified set are trivially dead, delete them and see if this makes any of
/// their operands subsequently dead.
void LoopStrengthReduce::
DeleteTriviallyDeadInstructions(SetVector<Instruction*> &Insts) {
while (!Insts.empty()) {
Instruction *I = Insts.back();
Insts.pop_back();
void LoopStrengthReduce::DeleteTriviallyDeadInstructions() {
while (!DeadInsts.empty()) {
Instruction *I = DeadInsts.back();
DeadInsts.pop_back();
if (!isInstructionTriviallyDead(I))
continue;
@ -253,7 +252,7 @@ DeleteTriviallyDeadInstructions(SetVector<Instruction*> &Insts) {
if (Instruction *U = dyn_cast<Instruction>(*i)) {
*i = 0;
if (U->use_empty())
Insts.insert(U);
DeadInsts.insert(U);
}
}
@ -1441,7 +1440,7 @@ void LoopStrengthReduce::StrengthReduceStridedIVUsers(const SCEVHandle &Stride,
Rewriter, L, this,
DeadInsts);
// Mark old value we replaced as possibly dead, so that it is elminated
// Mark old value we replaced as possibly dead, so that it is eliminated
// if we just replaced the last use of that value.
DeadInsts.insert(cast<Instruction>(User.OperandValToReplace));
@ -2055,7 +2054,7 @@ bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager &LPM) {
// Clean up after ourselves
if (!DeadInsts.empty()) {
DeleteTriviallyDeadInstructions(DeadInsts);
DeleteTriviallyDeadInstructions();
BasicBlock::iterator I = L->getHeader()->begin();
while (PHINode *PN = dyn_cast<PHINode>(I++)) {
@ -2091,7 +2090,7 @@ bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager &LPM) {
break;
}
}
DeleteTriviallyDeadInstructions(DeadInsts);
DeleteTriviallyDeadInstructions();
}
return Changed;
}