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Use pop_back_val instead of back()+pop_back.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92918 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2010-01-07 17:27:56 +00:00
parent 66b581ef49
commit 7b1e2a50a5
1 changed files with 4 additions and 7 deletions
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11
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -456,8 +456,7 @@ void SelectionDAGISel::ShrinkDemandedOps() {
TargetLowering::TargetLoweringOpt TLO(*CurDAG, true); TargetLowering::TargetLoweringOpt TLO(*CurDAG, true);
while (!Worklist.empty()) { while (!Worklist.empty()) {
SDNode *N = Worklist.back(); SDNode *N = Worklist.pop_back_val();
Worklist.pop_back();
if (N->use_empty() && N != CurDAG->getRoot().getNode()) { if (N->use_empty() && N != CurDAG->getRoot().getNode()) {
CurDAG->DeleteNode(N); CurDAG->DeleteNode(N);
@ -467,7 +466,6 @@ void SelectionDAGISel::ShrinkDemandedOps() {
// Run ShrinkDemandedOp on scalar binary operations. // Run ShrinkDemandedOp on scalar binary operations.
if (N->getNumValues() == 1 && if (N->getNumValues() == 1 &&
N->getValueType(0).isSimple() && N->getValueType(0).isInteger()) { N->getValueType(0).isSimple() && N->getValueType(0).isInteger()) {
DebugLoc dl = N->getDebugLoc();
unsigned BitWidth = N->getValueType(0).getScalarType().getSizeInBits(); unsigned BitWidth = N->getValueType(0).getScalarType().getSizeInBits();
APInt Demanded = APInt::getAllOnesValue(BitWidth); APInt Demanded = APInt::getAllOnesValue(BitWidth);
APInt KnownZero, KnownOne; APInt KnownZero, KnownOne;
@ -520,9 +518,8 @@ void SelectionDAGISel::ComputeLiveOutVRegInfo() {
APInt KnownZero; APInt KnownZero;
APInt KnownOne; APInt KnownOne;
while (!Worklist.empty()) { do {
SDNode *N = Worklist.back(); SDNode *N = Worklist.pop_back_val();
Worklist.pop_back();
// If we've already seen this node, ignore it. // If we've already seen this node, ignore it.
if (!VisitedNodes.insert(N)) if (!VisitedNodes.insert(N))
@ -562,7 +559,7 @@ void SelectionDAGISel::ComputeLiveOutVRegInfo() {
LOI.KnownOne = KnownOne; LOI.KnownOne = KnownOne;
LOI.KnownZero = KnownZero; LOI.KnownZero = KnownZero;
} }
} } while (!Worklist.empty());
} }
void SelectionDAGISel::CodeGenAndEmitDAG() { void SelectionDAGISel::CodeGenAndEmitDAG() {