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Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects

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that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45674 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2008-01-07 01:56:04 +00:00
parent 6425f8be72
commit 69244300b8
31 changed files with 154 additions and 226 deletions
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14
lib/CodeGen/LiveIntervalAnalysis.cpp
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@@ -615,7 +615,7 @@ bool LiveIntervals::isReMaterializable(const LiveInterval &li,
return false;
isLoad = false;
const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
const TargetInstrDescriptor *TID = MI->getDesc();
if ((TID->Flags & M_IMPLICIT_DEF_FLAG) ||
tii_->isTriviallyReMaterializable(MI)) {
isLoad = TID->isSimpleLoad();
@@ -680,7 +680,7 @@ bool LiveIntervals::tryFoldMemoryOperand(MachineInstr* &MI,
SmallVector<unsigned, 2> &Ops,
bool isSS, int Slot, unsigned Reg) {
unsigned MRInfo = 0;
const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
const TargetInstrDescriptor *TID = MI->getDesc();
// If it is an implicit def instruction, just delete it.
if (TID->Flags & M_IMPLICIT_DEF_FLAG) {
RemoveMachineInstrFromMaps(MI);
@@ -1226,7 +1226,7 @@ addIntervalsForSpills(const LiveInterval &li,
int LdSlot = 0;
bool isLoadSS = DefIsReMat && tii_->isLoadFromStackSlot(ReMatDefMI, LdSlot);
bool isLoad = isLoadSS ||
(DefIsReMat && (ReMatDefMI->getInstrDescriptor()->isSimpleLoad()));
(DefIsReMat && (ReMatDefMI->getDesc()->isSimpleLoad()));
bool IsFirstRange = true;
for (LiveInterval::Ranges::const_iterator
I = li.ranges.begin(), E = li.ranges.end(); I != E; ++I) {
@@ -1308,7 +1308,7 @@ addIntervalsForSpills(const LiveInterval &li,
int LdSlot = 0;
bool isLoadSS = DefIsReMat && tii_->isLoadFromStackSlot(ReMatDefMI, LdSlot);
bool isLoad = isLoadSS ||
(DefIsReMat && ReMatDefMI->getInstrDescriptor()->isSimpleLoad());
(DefIsReMat && ReMatDefMI->getDesc()->isSimpleLoad());
rewriteInstructionsForSpills(li, TrySplit, I, ReMatOrigDefMI, ReMatDefMI,
Slot, LdSlot, isLoad, isLoadSS, DefIsReMat,
CanDelete, vrm, RegInfo, rc, ReMatIds, loopInfo,
@@ -1423,7 +1423,7 @@ addIntervalsForSpills(const LiveInterval &li,
int LdSlot = 0;
bool isLoadSS = tii_->isLoadFromStackSlot(ReMatDefMI, LdSlot);
// If the rematerializable def is a load, also try to fold it.
if (isLoadSS || ReMatDefMI->getInstrDescriptor()->isSimpleLoad())
if (isLoadSS || ReMatDefMI->getDesc()->isSimpleLoad())
Folded = tryFoldMemoryOperand(MI, vrm, ReMatDefMI, index,
Ops, isLoadSS, LdSlot, VReg);
}
@@ -1451,8 +1451,8 @@ addIntervalsForSpills(const LiveInterval &li,
MachineInstr *LastUse = getInstructionFromIndex(LastUseIdx);
int UseIdx = LastUse->findRegisterUseOperandIdx(LI->reg);
assert(UseIdx != -1);
if (LastUse->getInstrDescriptor()->
getOperandConstraint(UseIdx, TOI::TIED_TO) == -1) {
if (LastUse->getDesc()->getOperandConstraint(UseIdx, TOI::TIED_TO) ==
-1) {
LastUse->getOperand(UseIdx).setIsKill();
vrm.addKillPoint(LI->reg, LastUseIdx);
}