replica
/
hanchenye-llvm-project
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Don't do illegal cross-class coalescing. 

llvm-svn: 98044
This commit is contained in:
Jakob Stoklund Olesen 2010-03-09 03:56:06 +00:00
parent 19e44b4510
commit 7c699f92cd
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
llvm/lib/CodeGen/MachineCSE.cpp
View File

@ -95,7 +95,7 @@ bool MachineCSE::PerformTrivialCoalescing(MachineInstr *MI,
!SrcSubIdx && !DstSubIdx) {
const TargetRegisterClass *SRC = MRI->getRegClass(SrcReg);
const TargetRegisterClass *RC = MRI->getRegClass(Reg);
if (SRC == RC || SRC->hasSubClass(RC) || RC->hasSubClass(SRC)) {
if (SRC == RC || RC->hasSubClass(SRC)) {
DEBUG(dbgs() << "Coalescing: " << *DefMI);
DEBUG(dbgs() << "*** to: " << *MI);
MO.setReg(SrcReg);