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Verify regunit intervals along with virtreg intervals.

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Don't cause regunit intervals to be computed just to verify them. Only
check the already cached intervals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161183 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-08-02 16:36:50 +00:00
parent e2b83ab056
commit 804468916a
1 changed files with 12 additions and 2 deletions
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14
lib/CodeGen/MachineVerifier.cpp
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@ -1170,6 +1170,11 @@ void MachineVerifier::verifyLiveIntervals() {
assert(Reg == LI.reg && "Invalid reg to interval mapping");
verifyLiveInterval(LI);
}
// Verify all the cached regunit intervals.
for (unsigned i = 0, e = TRI->getNumRegUnits(); i != e; ++i)
if (const LiveInterval *LI = LiveInts->getCachedRegUnit(i))
verifyLiveInterval(*LI);
}
void MachineVerifier::verifyLiveIntervalValue(const LiveInterval &LI,
@ -1227,7 +1232,7 @@ void MachineVerifier::verifyLiveIntervalValue(const LiveInterval &LI,
continue;
} else {
if (!TargetRegisterInfo::isPhysicalRegister(MOI->getReg()) ||
!TRI->regsOverlap(LI.reg, MOI->getReg()))
!TRI->hasRegUnit(MOI->getReg(), LI.reg))
continue;
}
hasDef = true;
@ -1294,6 +1299,11 @@ MachineVerifier::verifyLiveIntervalSegment(const LiveInterval &LI,
if (I->end == LiveInts->getMBBEndIdx(EndMBB))
return;
// RegUnit intervals are allowed dead phis.
if (!TargetRegisterInfo::isVirtualRegister(LI.reg) && VNI->isPHIDef() &&
I->start == VNI->def && I->end == VNI->def.getDeadSlot())
return;
// The live segment is ending inside EndMBB
const MachineInstr *MI =
LiveInts->getInstructionFromIndex(I->end.getPrevSlot());
@ -1371,7 +1381,7 @@ MachineVerifier::verifyLiveIntervalSegment(const LiveInterval &LI,
for (;;) {
assert(LiveInts->isLiveInToMBB(LI, MFI));
// We don't know how to track physregs into a landing pad.
if (TargetRegisterInfo::isPhysicalRegister(LI.reg) &&
if (!TargetRegisterInfo::isVirtualRegister(LI.reg) &&
MFI->isLandingPad()) {
if (&*MFI == EndMBB)
break;