本文整理汇总了C++中MachineBasicBlock::instr_rend方法的典型用法代码示例。如果您正苦于以下问题：C++ MachineBasicBlock::instr_rend方法的具体用法？C++ MachineBasicBlock::instr_rend怎么用？C++ MachineBasicBlock::instr_rend使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MachineBasicBlock的用法示例。
在下文中一共展示了MachineBasicBlock::instr_rend方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: findDelayInstr
bool Filler::findDelayInstr(MachineBasicBlock &MBB,
MachineBasicBlock::instr_iterator Slot,
MachineBasicBlock::instr_iterator &Filler) {
SmallSet<unsigned, 32> RegDefs;
SmallSet<unsigned, 32> RegUses;
insertDefsUses(Slot, RegDefs, RegUses);
bool SawLoad = false;
bool SawStore = false;
for (MachineBasicBlock::reverse_instr_iterator I = ++Slot.getReverse();
I != MBB.instr_rend(); ++I) {
// skip debug value
if (I->isDebugValue())
continue;
// Convert to forward iterator.
MachineBasicBlock::instr_iterator FI = I.getReverse();
if (I->hasUnmodeledSideEffects() || I->isInlineAsm() || I->isLabel() ||
FI == LastFiller || I->isPseudo())
break;
if (delayHasHazard(FI, SawLoad, SawStore, RegDefs, RegUses)) {
insertDefsUses(FI, RegDefs, RegUses);
continue;
}
Filler = FI;
return true;
}
return false;
}示例2: findDelayInstr
bool Filler::findDelayInstr(MachineBasicBlock &MBB,
InstrIter slot,
InstrIter &Filler) {
SmallSet<unsigned, 32> RegDefs;
SmallSet<unsigned, 32> RegUses;
insertDefsUses(slot, RegDefs, RegUses);
bool sawLoad = false;
bool sawStore = false;
for (ReverseInstrIter I(slot); I != MBB.instr_rend(); ++I) {
// skip debug value
if (I->isDebugValue())
continue;
// Convert to forward iterator.
InstrIter FI(llvm::next(I).base());
if (I->hasUnmodeledSideEffects()
|| I->isInlineAsm()
|| I->isLabel()
|| FI == LastFiller
|| I->isPseudo()
//
// Should not allow:
// ERET, DERET or WAIT, PAUSE. Need to add these to instruction
// list. TBD.
)
break;
if (delayHasHazard(FI, sawLoad, sawStore, RegDefs, RegUses)) {
insertDefsUses(FI, RegDefs, RegUses);
continue;
}
Filler = FI;
return true;
}
return false;
}