RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-20 03:23:01 +02:00
Code Issues Projects Releases Wiki Activity

[X86] Set AddPristinesAndCSRs to FixupBW LivePhysRegs. NFC.

Browse Source 
We run after PEI, so we need to AddPristinesAndCSRs.
In practice, that makes no difference here, because we only ask about
liveness of super-registers of defined GR8/GR16 registers, so they
can't be pristine. Still, it's the correct thing to do.

Thanks to Quentin for noticing!

Follow-up to r267495.

llvm-svn: 267658
This commit is contained in:
Ahmed Bougacha 2016-04-27 01:51:38 +00:00
parent 156bdb42b3
commit 1b19a8307b
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Target/X86/X86FixupBWInsts.cpp
View File

@ -244,7 +244,8 @@ void FixupBWInstPass::processBasicBlock(MachineFunction &MF,
// Start computing liveness for this block. We iterate from the end to be able
// to update this for each instruction.
LiveRegs.clear();
LiveRegs.addLiveOuts(&MBB);
// We run after PEI, so we need to AddPristinesAndCSRs.
LiveRegs.addLiveOuts(&MBB, /*AddPristinesAndCSRs=*/true);
for (auto I = MBB.rbegin(); I != MBB.rend(); ++I) {
MachineInstr *NewMI = nullptr;