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-rw-r--r--lib/Target/X86/X86InstrInfo.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h
index ec9b2e619d..9ed5210b22 100644
--- a/lib/Target/X86/X86InstrInfo.h
+++ b/lib/Target/X86/X86InstrInfo.h
@@ -387,6 +387,14 @@ public:
unsigned SrcReg2, int CmpMask, int CmpValue,
const MachineRegisterInfo *MRI) const;
+ /// optimizeLoadInstr - Try to remove the load by folding it to a register
+ /// operand at the use. We fold the load instructions if and only if the
+ /// def and use are in the same BB.
+ virtual MachineInstr* optimizeLoadInstr(MachineInstr *MI,
+ const MachineRegisterInfo *MRI,
+ unsigned &FoldAsLoadDefReg,
+ MachineInstr *&DefMI) const;
+
private:
MachineInstr * convertToThreeAddressWithLEA(unsigned MIOpc,
MachineFunction::iterator &MFI,