1 //===-- X86InstructionInfo.def - X86 Instruction Information ----*- C++ -*-===//
3 // This file describes all of the instructions that the X86 backend uses. It
4 // relys on an external 'I' macro being defined that takes the arguments
5 // specified below, and is used to make all of the information relevant to an
6 // instruction be in one place.
8 //===----------------------------------------------------------------------===//
10 // NOTE: No include guards desired
13 #errror "Must define I macro before including X86/X86InstructionInfo.def!"
16 // Arguments to be passed into the I macro
17 // #1: Enum name - This ends up being the opcode symbol in the X86 namespace
18 // #2: Opcode name, as used by the gnu assembler
19 // #3: Instruction Flags - This should be a field or'd together that contains
20 // constants from the MInstructionInfo.h file.
21 // #4: Target Specific Flags - Another bitfield containing X86 specific flags
22 // that we are interested in for each instruction
25 // The first instruction must always be the PHI instruction:
28 // The second instruction must always be the noop instruction
29 I(NOOP , "nop", 0, 0) // nop 90
31 // Miscellaneous instructions
32 I(RET , "ret", M_RET_FLAG, 0) // ret CB
35 I(MOVir8 , "movb", 0, 0) // R = imm8 B0+ rb
36 I(MOVir16 , "movw", 0, 0) // R = imm16 B8+ rw
37 I(MOVir32 , "movl", 0, 0) // R = imm32 B8+ rd
39 // Arithmetic instructions
40 I(ADDrr8 , "addb", 0, 0) // R8 += R8 00/r
41 I(ADDrr16 , "addw", 0, 0) // R16 += R16 01/r
42 I(ADDrr32 , "addl", 0, 0) // R32 += R32 02/r
45 // At this point, I is dead to undefine the macro