diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-03-09 03:56:06 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-03-09 03:56:06 +0000 |
| commit | 1552cccc76c62513a1b38dc1d6fac2c11897cebe (patch) | |
| tree | 2f33312e118e596b9d970fd68ed4d3c95f871816 /lib/CodeGen/MachineCSE.cpp | |
| parent | 31f94c7c22cbf59753764bc17130dca6a73c0b4e (diff) | |
Don't do illegal cross-class coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98044 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineCSE.cpp')
| -rw-r--r-- | lib/CodeGen/MachineCSE.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp index ada95cd6da..68407c88d8 100644 --- a/lib/CodeGen/MachineCSE.cpp +++ b/lib/CodeGen/MachineCSE.cpp @@ -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); |