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Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62600 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2009-01-20 19:12:24 +00:00
parent a913f4fca9
commit 04ee5a1d92
32 changed files with 161 additions and 127 deletions
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9
lib/Target/ARM/ARMInstrInfo.h
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@@ -155,11 +155,12 @@ public:
/// This is used for addressing modes.
virtual const TargetRegisterClass *getPointerRegClass() const;
/// Return true if the instruction is a register to register move and
/// leave the source and dest operands in the passed parameters.
///
/// Return true if the instruction is a register to register move and return
/// the source and dest operands and their sub-register indices by reference.
virtual bool isMoveInstr(const MachineInstr &MI,
unsigned &SrcReg, unsigned &DstReg) const;
unsigned &SrcReg, unsigned &DstReg,
unsigned &SrcSubIdx, unsigned &DstSubIdx) const;
virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
int &FrameIndex) const;
virtual unsigned isStoreToStackSlot(const MachineInstr *MI,