diff options
| author | Cameron Zwarich <zwarich@apple.com> | 2010-12-28 23:45:38 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2010-12-28 23:45:38 +0000 |
| commit | cb584d08c0734d64f95b0f762aa31ea8ce3de2d9 (patch) | |
| tree | 7a02aba134e740c79a8cbd3c2254c78a18d883cd /lib/CodeGen/MachineVerifier.cpp | |
| parent | 3b78cdc57ae25ff021fd67171a7c82d533477a19 (diff) | |
Simplify some code in MachineVerifier that was doing the correct thing, but not
in the most obvious way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122610 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineVerifier.cpp')
| -rw-r--r-- | lib/CodeGen/MachineVerifier.cpp | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp index 0c29969003..53e04cea2b 100644 --- a/lib/CodeGen/MachineVerifier.cpp +++ b/lib/CodeGen/MachineVerifier.cpp @@ -1118,8 +1118,8 @@ void MachineVerifier::verifyLiveIntervals() { // Now check all the basic blocks in this live segment. MachineFunction::const_iterator MFI = MBB; - // Is LI live-in to MBB and not a PHIDef? - if (I->start == VNI->def) { + // Is this live range the beginning of a non-PHIDef VN? + if (I->start == VNI->def && !VNI->isPHIDef()) { // Not live-in to any blocks. if (MBB == EndMBB) continue; @@ -1141,16 +1141,9 @@ void MachineVerifier::verifyLiveIntervals() { PE = MFI->pred_end(); PI != PE; ++PI) { SlotIndex PEnd = LiveInts->getMBBEndIdx(*PI).getPrevSlot(); const VNInfo *PVNI = LI.getVNInfoAt(PEnd); - if (!PVNI) { - report("Register not marked live out of predecessor", *PI); - *OS << "Valno #" << VNI->id << " live into BB#" << MFI->getNumber() - << '@' << LiveInts->getMBBStartIdx(MFI) << ", not live at " - << PEnd << " in " << LI << '\n'; - continue; - } if (VNI->isPHIDef() && VNI->def == LiveInts->getMBBStartIdx(MFI)) { - if (!PVNI->hasPHIKill()) { + if (PVNI && !PVNI->hasPHIKill()) { report("Value live out of predecessor doesn't have PHIKill", MF); *OS << "Valno #" << PVNI->id << " live out of BB#" << (*PI)->getNumber() << '@' << PEnd @@ -1162,6 +1155,14 @@ void MachineVerifier::verifyLiveIntervals() { continue; } + if (!PVNI) { + report("Register not marked live out of predecessor", *PI); + *OS << "Valno #" << VNI->id << " live into BB#" << MFI->getNumber() + << '@' << LiveInts->getMBBStartIdx(MFI) << ", not live at " + << PEnd << " in " << LI << '\n'; + continue; + } + if (PVNI != VNI) { report("Different value live out of predecessor", *PI); *OS << "Valno #" << PVNI->id << " live out of BB#" |