diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2009-07-10 19:15:51 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-07-10 19:15:51 +0000 |
| commit | 261ce1d5f89155d2e6f914f281db2004c89ee839 (patch) | |
| tree | aae48da42d95072d15a7433f2500995e10f23e69 /include | |
| parent | fd12da4d618538e45bdf4b5b89b26526c46a4444 (diff) | |
| download | external_llvm-261ce1d5f89155d2e6f914f281db2004c89ee839.zip external_llvm-261ce1d5f89155d2e6f914f281db2004c89ee839.tar.gz external_llvm-261ce1d5f89155d2e6f914f281db2004c89ee839.tar.bz2 | |
Remove TargetInstrInfo::CommuteChangesDestination and added findCommutedOpIndices which returns the operand indices which are swapped (when applicable). This allows for some code clean up and future enhancements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75264 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Target/TargetInstrInfo.h | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h index ecdd682..0635c23 100644 --- a/include/llvm/Target/TargetInstrInfo.h +++ b/include/llvm/Target/TargetInstrInfo.h @@ -194,13 +194,11 @@ public: virtual MachineInstr *commuteInstruction(MachineInstr *MI, bool NewMI = false) const = 0; - /// CommuteChangesDestination - Return true if commuting the specified - /// instruction will also changes the destination operand. Also return the - /// current operand index of the would be new destination register by - /// reference. This can happen when the commutable instruction is also a - /// two-address instruction. - virtual bool CommuteChangesDestination(MachineInstr *MI, - unsigned &OpIdx) const = 0; + /// findCommutedOpIndices - If specified MI is commutable, return the two + /// operand indices that would swap value. Return true if the instruction + /// is not in a form which this routine understands. + virtual bool findCommutedOpIndices(MachineInstr *MI, unsigned &SrcOpIdx1, + unsigned &SrcOpIdx2) const = 0; /// AnalyzeBranch - Analyze the branching code at the end of MBB, returning /// true if it cannot be understood (e.g. it's a switch dispatch or isn't @@ -495,8 +493,8 @@ protected: public: virtual MachineInstr *commuteInstruction(MachineInstr *MI, bool NewMI = false) const; - virtual bool CommuteChangesDestination(MachineInstr *MI, - unsigned &OpIdx) const; + virtual bool findCommutedOpIndices(MachineInstr *MI, unsigned &SrcOpIdx1, + unsigned &SrcOpIdx2) const; virtual bool PredicateInstruction(MachineInstr *MI, const SmallVectorImpl<MachineOperand> &Pred) const; virtual void reMaterialize(MachineBasicBlock &MBB, |