Add new prefix flag
llvm-svn: 4794
diff --git a/llvm/lib/Target/X86/X86InstrInfo.h b/llvm/lib/Target/X86/X86InstrInfo.h
index 6553681..a0454a6 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.h
+++ b/llvm/lib/Target/X86/X86InstrInfo.h
@@ -65,6 +65,11 @@
// 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,
};
}