diff options
Diffstat (limited to 'llvm/lib/CodeGen/SplitKit.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SplitKit.cpp | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/SplitKit.cpp b/llvm/lib/CodeGen/SplitKit.cpp index 4029c85..f62aa8d 100644 --- a/llvm/lib/CodeGen/SplitKit.cpp +++ b/llvm/lib/CodeGen/SplitKit.cpp @@ -399,10 +399,18 @@ LLVM_DUMP_METHOD void SplitEditor::dump() const { } #endif +LiveInterval::SubRange &SplitEditor::getSubRangeForMaskExact(LaneBitmask LM, + LiveInterval &LI) { + for (LiveInterval::SubRange &S : LI.subranges()) + if (S.LaneMask == LM) + return S; + llvm_unreachable("SubRange for this mask not found"); +} + LiveInterval::SubRange &SplitEditor::getSubRangeForMask(LaneBitmask LM, LiveInterval &LI) { for (LiveInterval::SubRange &S : LI.subranges()) - if (S.LaneMask == LM) + if ((S.LaneMask & LM) == LM) return S; llvm_unreachable("SubRange for this mask not found"); } @@ -1247,8 +1255,8 @@ void SplitEditor::extendPHIRange(MachineBasicBlock &B, LiveIntervalCalc &LIC, LiveInterval &PLI = Edit->getParent(); // Need the cast because the inputs to ?: would otherwise be deemed // "incompatible": SubRange vs LiveInterval. - LiveRange &PSR = !LM.all() ? getSubRangeForMask(LM, PLI) - : static_cast<LiveRange&>(PLI); + LiveRange &PSR = !LM.all() ? getSubRangeForMaskExact(LM, PLI) + : static_cast<LiveRange &>(PLI); if (PSR.liveAt(LastUse)) LIC.extend(LR, End, /*PhysReg=*/0, Undefs); } @@ -1283,7 +1291,7 @@ void SplitEditor::extendPHIKillRanges() { continue; unsigned RegIdx = RegAssign.lookup(V->def); LiveInterval &LI = LIS.getInterval(Edit->get(RegIdx)); - LiveInterval::SubRange &S = getSubRangeForMask(PS.LaneMask, LI); + LiveInterval::SubRange &S = getSubRangeForMaskExact(PS.LaneMask, LI); if (removeDeadSegment(V->def, S)) continue; |