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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-07 14:41:22 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-07 14:41:22 +0000 |
| commit | fcb4ccd7aa674dba05f50de4083944efef6610d3 (patch) | |
| tree | d6117fb7349e5d9fdda212c9e4d1d05280d100c5 | |
| parent | e3c55022635052148b3b789838ef83fe027d11f6 (diff) | |
| download | llvm-fcb4ccd7aa674dba05f50de4083944efef6610d3.tar.gz llvm-fcb4ccd7aa674dba05f50de4083944efef6610d3.tar.bz2 llvm-fcb4ccd7aa674dba05f50de4083944efef6610d3.tar.xz | |
Fix more places assuming subregisters have live intervals
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107780 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index e0b9f0c10f..b8734faa03 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -211,6 +211,8 @@ bool SimpleRegisterCoalescing::AdjustCopiesBackFrom(const CoalescerPair &CP, // physreg has sub-registers, update their live intervals as well. if (TargetRegisterInfo::isPhysicalRegister(IntB.reg)) { for (const unsigned *SR = tri_->getSubRegisters(IntB.reg); *SR; ++SR) { + if (!li_->hasInterval(*SR)) + continue; LiveInterval &SRLI = li_->getInterval(*SR); SRLI.addRange(LiveRange(FillerStart, FillerEnd, SRLI.getNextValue(FillerStart, 0, true, @@ -392,7 +394,8 @@ bool SimpleRegisterCoalescing::RemoveCopyByCommutingDef(const CoalescerPair &CP, // clobbers from the superreg. if (BHasSubRegs) for (const unsigned *SR = tri_->getSubRegisters(IntB.reg); *SR; ++SR) - if (HasOtherReachingDefs(IntA, li_->getInterval(*SR), AValNo, 0)) + if (li_->hasInterval(*SR) && + HasOtherReachingDefs(IntA, li_->getInterval(*SR), AValNo, 0)) return false; // If some of the uses of IntA.reg is already coalesced away, return false. @@ -498,6 +501,8 @@ bool SimpleRegisterCoalescing::RemoveCopyByCommutingDef(const CoalescerPair &CP, VNInfo *DeadVNI = BDeadValNos[i]; if (BHasSubRegs) { for (const unsigned *SR = tri_->getSubRegisters(IntB.reg); *SR; ++SR) { + if (!li_->hasInterval(*SR)) + continue; LiveInterval &SRLI = li_->getInterval(*SR); if (const LiveRange *SRLR = SRLI.getLiveRangeContaining(DeadVNI->def)) SRLI.removeValNo(SRLR->valno); |