diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2008-07-03 00:07:19 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-07-03 00:07:19 +0000 |
| commit | be04dc1413bdab0c8687a8086792af6cfd7540c0 (patch) | |
| tree | ec20a72422a289cd10907a1515c5a6812064e1ec /lib/CodeGen/TwoAddressInstructionPass.cpp | |
| parent | 457b88fb95be895d914e52f3b44014a82e645e4a (diff) | |
- Add LiveVariables::replaceKillInstruction. This does a subset of instructionChanged. That is, it only update the VarInfo.kills if the new instruction is known to have the correct dead and kill markers.
- CommuteInstruction copies kill / dead markers over to new instruction. So use replaceKillInstruction instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53061 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/TwoAddressInstructionPass.cpp')
| -rw-r--r-- | lib/CodeGen/TwoAddressInstructionPass.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp index d2e5288d34..480d6dd389 100644 --- a/lib/CodeGen/TwoAddressInstructionPass.cpp +++ b/lib/CodeGen/TwoAddressInstructionPass.cpp @@ -375,10 +375,9 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) { DOUT << "2addr: COMMUTED TO: " << *NewMI; // If the instruction changed to commute it, update livevar. if (NewMI != mi) { - if (LV) { + if (LV) // Update live variables - LV->instructionChanged(mi, NewMI); - } + LV->replaceKillInstruction(regC, mi, NewMI); mbbi->insert(mi, NewMI); // Insert the new inst mbbi->erase(mi); // Nuke the old inst. |