diff options
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h index 65536818bf..a0454a652c 100644 --- a/lib/Target/X86/X86InstrInfo.h +++ b/lib/Target/X86/X86InstrInfo.h @@ -65,6 +65,11 @@ namespace X86II { // TB - TwoByte - Set if this instruction has a two byte opcode, which // starts with a 0x0F byte before the real opcode. TB = 1 << 4, + + // OpSize - Set if this instruction requires an operand size prefix (0x66), + // which most often indicates that the instruction operates on 16 bit data + // instead of 32 bit data. + OpSize = 1 << 5, }; } |