ImmDefMIs.clear();
FoldAsLoadDefReg = 0;
- bool First = true;
- MachineBasicBlock::iterator PMII;
for (MachineBasicBlock::iterator
MII = I->begin(), MIE = I->end(); MII != MIE; ) {
MachineInstr *MI = &*MII;
+ // We may be erasing MI below, increment MII now.
+ ++MII;
LocalMIs.insert(MI);
// If there exists an instruction which belongs to the following
MI->isKill() || MI->isInlineAsm() || MI->isDebugValue() ||
MI->hasUnmodeledSideEffects()) {
FoldAsLoadDefReg = 0;
- ++MII;
continue;
}
if (MI->mayStore() || MI->isCall())
// MI is deleted.
LocalMIs.erase(MI);
Changed = true;
- MII = First ? I->begin() : llvm::next(PMII);
continue;
}
// MI is replaced with FoldMI.
Changed = true;
- PMII = FoldMI;
- MII = llvm::next(PMII);
continue;
}
}
- First = false;
- PMII = MII;
- ++MII;
}
}