diff options
| author | Manman Ren <mren@apple.com> | 2012-06-06 23:53:03 +0000 |
|---|---|---|
| committer | Manman Ren <mren@apple.com> | 2012-06-06 23:53:03 +0000 |
| commit | 2afde7782dfa56b2e46f79598bdb5f1e09471941 (patch) | |
| tree | c3a07b4c2b416d79bd3e0dc7462b07f5e45a1547 /include | |
| parent | aed04d12f8e336d4960b49ad8d09ac2eb5785f1f (diff) | |
Revert r157755.
The commit is intended to fix rdar://11540023.
It is implemented as part of peephole optimization. We can actually implement
this in the SelectionDAG lowering phase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158122 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Target/TargetInstrInfo.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h index 693166f552..67b61ec77e 100644 --- a/include/llvm/Target/TargetInstrInfo.h +++ b/include/llvm/Target/TargetInstrInfo.h @@ -640,14 +640,6 @@ public: return false; } - /// OptimizeSubInstr - See if the SUB instruction can be converted into - /// something more efficient E.g., on X86, we can replace SUB with CMP - /// if the actual result of SUB is not used. - virtual bool OptimizeSubInstr(MachineInstr *SubInstr, - const MachineRegisterInfo *MRI) const { - return false; - } - /// FoldImmediate - 'Reg' is known to be defined by a move immediate /// instruction, try to fold the immediate into the use instruction. virtual bool FoldImmediate(MachineInstr *UseMI, MachineInstr *DefMI, |