diff options
Diffstat (limited to 'llvm/lib/CodeGen/LiveVariables.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveVariables.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/LiveVariables.cpp b/llvm/lib/CodeGen/LiveVariables.cpp index ab73c97ec9e..ee4492b6ddc 100644 --- a/llvm/lib/CodeGen/LiveVariables.cpp +++ b/llvm/lib/CodeGen/LiveVariables.cpp @@ -684,6 +684,15 @@ void LiveVariables::instructionChanged(MachineInstr *OldMI, } } +/// replaceKillInstruction - Update register kill info by replacing a kill +/// instruction with a new one. +void LiveVariables::replaceKillInstruction(unsigned Reg, MachineInstr *OldMI, + MachineInstr *NewMI) { + VarInfo &VI = getVarInfo(Reg); + if (VI.removeKill(OldMI)) + VI.Kills.push_back(NewMI); // Yes, there was a kill of it +} + /// removeVirtualRegistersKilled - Remove all killed info for the specified /// instruction. void LiveVariables::removeVirtualRegistersKilled(MachineInstr *MI) { |
