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-rw-r--r--include/llvm/CodeGen/MachineInstr.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index 668c4b3..5c646c6 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -245,6 +245,11 @@ public:
/// check if the register def is a re-definition due to two addr elimination.
bool isRegReDefinedByTwoAddr(unsigned DefIdx) const;
+ /// isRegTiedToDefOperand - Return true if the use operand of the specified
+ /// index is tied to an def operand. It also returns the def operand index by
+ /// reference if DefOpIdx is not null.
+ bool isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx = 0);
+
/// copyKillDeadInfo - Copies kill / dead operand properties from MI.
///
void copyKillDeadInfo(const MachineInstr *MI);