diff options
Diffstat (limited to 'lib/CodeGen/SimpleRegisterCoalescing.cpp')
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index bc83363..5b7f55d 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -1327,7 +1327,7 @@ bool SimpleRegisterCoalescing::RangeIsDefinedByCopyFromReg(LiveInterval &li, // Re-compute it. MachineInstr *DefMI = li_->getInstructionFromIndex(LR->start); unsigned SrcReg, DstReg; - if (tii_->isMoveInstr(*DefMI, SrcReg, DstReg) && + if (DefMI && tii_->isMoveInstr(*DefMI, SrcReg, DstReg) && DstReg == li.reg && SrcReg == Reg) { // Cache computed info. LR->valno->def = LR->start; |