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Use SmallPtrSet instead of DenseSet.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152457 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-03-10 00:36:04 +00:00
parent d5f7690651
commit 1efd6b94a9
1 changed files with 4 additions and 3 deletions
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7
lib/CodeGen/MachineVerifier.cpp
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@ -900,7 +900,7 @@ MachineVerifier::visitMachineBasicBlockAfter(const MachineBasicBlock *MBB) {
void MachineVerifier::calcRegsPassed() {
// First push live-out regs to successors' vregsPassed. Remember the MBBs that
// have any vregsPassed.
DenseSet<const MachineBasicBlock*> todo;
SmallPtrSet<const MachineBasicBlock*, 8> todo;
for (MachineFunction::const_iterator MFI = MF->begin(), MFE = MF->end();
MFI != MFE; ++MFI) {
const MachineBasicBlock &MBB(*MFI);
@ -937,7 +937,7 @@ void MachineVerifier::calcRegsPassed() {
// similar to calcRegsPassed, only backwards.
void MachineVerifier::calcRegsRequired() {
// First push live-in regs to predecessors' vregsRequired.
DenseSet<const MachineBasicBlock*> todo;
SmallPtrSet<const MachineBasicBlock*, 8> todo;
for (MachineFunction::const_iterator MFI = MF->begin(), MFE = MF->end();
MFI != MFE; ++MFI) {
const MachineBasicBlock &MBB(*MFI);
@ -970,9 +970,10 @@ void MachineVerifier::calcRegsRequired() {
// Check PHI instructions at the beginning of MBB. It is assumed that
// calcRegsPassed has been run so BBInfo::isLiveOut is valid.
void MachineVerifier::checkPHIOps(const MachineBasicBlock *MBB) {
SmallPtrSet<const MachineBasicBlock*, 8> seen;
for (MachineBasicBlock::const_iterator BBI = MBB->begin(), BBE = MBB->end();
BBI != BBE && BBI->isPHI(); ++BBI) {
DenseSet<const MachineBasicBlock*> seen;
seen.clear();
for (unsigned i = 1, e = BBI->getNumOperands(); i != e; i += 2) {
unsigned Reg = BBI->getOperand(i).getReg();