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MachineVerifier: Report register for bad liveranges

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222380 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun 2014-11-19 19:46:13 +00:00
parent c754d5815d
commit 4a7e0736d3
1 changed files with 28 additions and 24 deletions
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52
lib/CodeGen/MachineVerifier.cpp
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@ -215,9 +215,9 @@ namespace {
void report(const char *msg, const MachineBasicBlock *MBB,
const LiveInterval &LI);
void report(const char *msg, const MachineFunction *MF,
const LiveRange &LR);
const LiveRange &LR, unsigned Reg);
void report(const char *msg, const MachineBasicBlock *MBB,
const LiveRange &LR);
const LiveRange &LR, unsigned Reg);
void verifyInlineAsm(const MachineInstr *MI);
@ -432,15 +432,17 @@ void MachineVerifier::report(const char *msg, const MachineBasicBlock *MBB,
}
void MachineVerifier::report(const char *msg, const MachineBasicBlock *MBB,
const LiveRange &LR) {
const LiveRange &LR, unsigned Reg) {
report(msg, MBB);
*OS << "- liverange: " << LR << "\n";
*OS << "- liverange: " << LR << '\n';
*OS << "- register: " << PrintReg(Reg, TRI) << '\n';
}
void MachineVerifier::report(const char *msg, const MachineFunction *MF,
const LiveRange &LR) {
const LiveRange &LR, unsigned Reg) {
report(msg, MF);
*OS << "- liverange: " << LR << "\n";
*OS << "- liverange: " << LR << '\n';
*OS << "- register: " << PrintReg(Reg, TRI) << '\n';
}
void MachineVerifier::markReachable(const MachineBasicBlock *MBB) {
@ -1360,13 +1362,13 @@ void MachineVerifier::verifyLiveRangeValue(const LiveRange &LR,
const VNInfo *DefVNI = LR.getVNInfoAt(VNI->def);
if (!DefVNI) {
report("Valno not live at def and not marked unused", MF, LR);
report("Valno not live at def and not marked unused", MF, LR, Reg);
*OS << "Valno #" << VNI->id << '\n';
return;
}
if (DefVNI != VNI) {
report("Live segment at def has different valno", MF, LR);
report("Live segment at def has different valno", MF, LR, Reg);
*OS << "Valno #" << VNI->id << " is defined at " << VNI->def
<< " where valno #" << DefVNI->id << " is live\n";
return;
@ -1374,7 +1376,7 @@ void MachineVerifier::verifyLiveRangeValue(const LiveRange &LR,
const MachineBasicBlock *MBB = LiveInts->getMBBFromIndex(VNI->def);
if (!MBB) {
report("Invalid definition index", MF, LR);
report("Invalid definition index", MF, LR, Reg);
*OS << "Valno #" << VNI->id << " is defined at " << VNI->def
<< " in " << LR << '\n';
return;
@ -1382,7 +1384,7 @@ void MachineVerifier::verifyLiveRangeValue(const LiveRange &LR,
if (VNI->isPHIDef()) {
if (VNI->def != LiveInts->getMBBStartIdx(MBB)) {
report("PHIDef value is not defined at MBB start", MBB, LR);
report("PHIDef value is not defined at MBB start", MBB, LR, Reg);
*OS << "Valno #" << VNI->id << " is defined at " << VNI->def
<< ", not at the beginning of BB#" << MBB->getNumber() << '\n';
}
@ -1392,7 +1394,7 @@ void MachineVerifier::verifyLiveRangeValue(const LiveRange &LR,
// Non-PHI def.
const MachineInstr *MI = LiveInts->getInstructionFromIndex(VNI->def);
if (!MI) {
report("No instruction at def index", MBB, LR);
report("No instruction at def index", MBB, LR, Reg);
*OS << "Valno #" << VNI->id << " is defined at " << VNI->def << '\n';
return;
}
@ -1425,12 +1427,13 @@ void MachineVerifier::verifyLiveRangeValue(const LiveRange &LR,
// DEF slots.
if (isEarlyClobber) {
if (!VNI->def.isEarlyClobber()) {
report("Early clobber def must be at an early-clobber slot", MBB, LR);
report("Early clobber def must be at an early-clobber slot", MBB, LR,
Reg);
*OS << "Valno #" << VNI->id << " is defined at " << VNI->def << '\n';
}
} else if (!VNI->def.isRegister()) {
report("Non-PHI, non-early clobber def must be at a register slot",
MBB, LR);
MBB, LR, Reg);
*OS << "Valno #" << VNI->id << " is defined at " << VNI->def << '\n';
}
}
@ -1444,31 +1447,31 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR,
assert(VNI && "Live segment has no valno");
if (VNI->id >= LR.getNumValNums() || VNI != LR.getValNumInfo(VNI->id)) {
report("Foreign valno in live segment", MF, LR);
report("Foreign valno in live segment", MF, LR, Reg);
*OS << S << " has a bad valno\n";
}
if (VNI->isUnused()) {
report("Live segment valno is marked unused", MF, LR);
report("Live segment valno is marked unused", MF, LR, Reg);
*OS << S << '\n';
}
const MachineBasicBlock *MBB = LiveInts->getMBBFromIndex(S.start);
if (!MBB) {
report("Bad start of live segment, no basic block", MF, LR);
report("Bad start of live segment, no basic block", MF, LR, Reg);
*OS << S << '\n';
return;
}
SlotIndex MBBStartIdx = LiveInts->getMBBStartIdx(MBB);
if (S.start != MBBStartIdx && S.start != VNI->def) {
report("Live segment must begin at MBB entry or valno def", MBB, LR);
report("Live segment must begin at MBB entry or valno def", MBB, LR, Reg);
*OS << S << '\n';
}
const MachineBasicBlock *EndMBB =
LiveInts->getMBBFromIndex(S.end.getPrevSlot());
if (!EndMBB) {
report("Bad end of live segment, no basic block", MF, LR);
report("Bad end of live segment, no basic block", MF, LR, Reg);
*OS << S << '\n';
return;
}
@ -1486,14 +1489,14 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR,
const MachineInstr *MI =
LiveInts->getInstructionFromIndex(S.end.getPrevSlot());
if (!MI) {
report("Live segment doesn't end at a valid instruction", EndMBB, LR);
report("Live segment doesn't end at a valid instruction", EndMBB, LR, Reg);
*OS << S << '\n';
return;
}
// The block slot must refer to a basic block boundary.
if (S.end.isBlock()) {
report("Live segment ends at B slot of an instruction", EndMBB, LR);
report("Live segment ends at B slot of an instruction", EndMBB, LR, Reg);
*OS << S << '\n';
}
@ -1501,7 +1504,8 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR,
// Segment ends on the dead slot.
// That means there must be a dead def.
if (!SlotIndex::isSameInstr(S.start, S.end)) {
report("Live segment ending at dead slot spans instructions", EndMBB, LR);
report("Live segment ending at dead slot spans instructions", EndMBB, LR,
Reg);
*OS << S << '\n';
}
}
@ -1511,7 +1515,7 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR,
if (S.end.isEarlyClobber()) {
if (I+1 == LR.end() || (I+1)->start != S.end) {
report("Live segment ending at early clobber slot must be "
"redefined by an EC def in the same instruction", EndMBB, LR);
"redefined by an EC def in the same instruction", EndMBB, LR, Reg);
*OS << S << '\n';
}
}
@ -1569,7 +1573,7 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR,
// All predecessors must have a live-out value.
if (!PVNI) {
report("Register not marked live out of predecessor", *PI, LR);
report("Register not marked live out of predecessor", *PI, LR, Reg);
*OS << "Valno #" << VNI->id << " live into BB#" << MFI->getNumber()
<< '@' << LiveInts->getMBBStartIdx(MFI) << ", not live before "
<< PEnd << '\n';
@ -1578,7 +1582,7 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR,
// Only PHI-defs can take different predecessor values.
if (!IsPHI && PVNI != VNI) {
report("Different value live out of predecessor", *PI, LR);
report("Different value live out of predecessor", *PI, LR, Reg);
*OS << "Valno #" << PVNI->id << " live out of BB#"
<< (*PI)->getNumber() << '@' << PEnd
<< "\nValno #" << VNI->id << " live into BB#" << MFI->getNumber()