diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineOperand.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineOperand.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/llvm/CodeGen/MachineOperand.h b/include/llvm/CodeGen/MachineOperand.h index 555f320027..c2399beaf6 100644 --- a/include/llvm/CodeGen/MachineOperand.h +++ b/include/llvm/CodeGen/MachineOperand.h @@ -68,9 +68,9 @@ private: /// This is only valid on definitions of registers. bool IsDead : 1; - /// IsEarlyClobber - True if this MO_Register operand is marked earlyclobber - /// in an inline asm. Flag is not valid for any other case. See gcc doc - /// for description of earlyclobber. + /// IsEarlyClobber - True if this MO_Register 'def' operand is written to + /// by the MachineInstr before all input registers are read. This is used to + /// model the GCC inline asm '&' constraint modifier. bool IsEarlyClobber : 1; /// OverlapsEarlyClobber - True if this MO_Register operand is used as an |