diff options
Diffstat (limited to 'lib/CodeGen/MachineInstr.cpp')
| -rw-r--r-- | lib/CodeGen/MachineInstr.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp index 1275909dd9..135718acc7 100644 --- a/lib/CodeGen/MachineInstr.cpp +++ b/lib/CodeGen/MachineInstr.cpp @@ -553,8 +553,9 @@ int MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, } /// findRegisterDefOperandIdx() - Returns the operand index that is a def of -/// the specific register or -1 if it is not found. It further tightening - /// the search criteria to a def that is dead the register if isDead is true. +/// the specified register or -1 if it is not found. If isDead is true, defs +/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it +/// also checks if there is a def of a super-register. int MachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, const TargetRegisterInfo *TRI) const { for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { |