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Eliminate unnecessary operands-list traversals.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63088 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-01-27 02:37:43 +00:00
parent 49237f04a8
commit e8ecf4876a
1 changed files with 3 additions and 6 deletions
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9
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -242,12 +242,9 @@ namespace {
static SDNode *findFlagUse(SDNode *N) {
unsigned FlagResNo = N->getNumValues()-1;
for (SDNode::use_iterator I = N->use_begin(), E = N->use_end(); I != E; ++I) {
SDNode *User = *I;
for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) {
SDValue Op = User->getOperand(i);
if (Op.getNode() == N && Op.getResNo() == FlagResNo)
return User;
}
SDUse &Use = I.getUse();
if (Use.getResNo() == FlagResNo)
return Use.getUser();
}
return NULL;
}