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[DAGCombiner] give magic number a name in getStoreMergeCandidates; NFC

This commit is contained in:
Sanjay Patel 2020-08-17 15:36:55 -04:00
parent 046b4a550a
commit f925fd3304
1 changed files with 3 additions and 2 deletions
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5
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -16232,10 +16232,11 @@ void DAGCombiner::getStoreMergeCandidates(
RootNode = St->getChain().getNode();
unsigned NumNodesExplored = 0;
const unsigned MaxSearchNodes = 1024;
if (auto *Ldn = dyn_cast<LoadSDNode>(RootNode)) {
RootNode = Ldn->getChain().getNode();
for (auto I = RootNode->use_begin(), E = RootNode->use_end();
I != E && NumNodesExplored < 1024; ++I, ++NumNodesExplored) {
I != E && NumNodesExplored < MaxSearchNodes; ++I, ++NumNodesExplored) {
if (I.getOperandNo() == 0 && isa<LoadSDNode>(*I)) { // walk down chain
for (auto I2 = (*I)->use_begin(), E2 = (*I)->use_end(); I2 != E2; ++I2)
TryToAddCandidate(I2);
@ -16243,7 +16244,7 @@ void DAGCombiner::getStoreMergeCandidates(
}
} else {
for (auto I = RootNode->use_begin(), E = RootNode->use_end();
I != E && NumNodesExplored < 1024; ++I, ++NumNodesExplored)
I != E && NumNodesExplored < MaxSearchNodes; ++I, ++NumNodesExplored)
TryToAddCandidate(I);
}
}