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", MIF::RET, 0) // ret CB
34 I(ADDrr8 , "add", 0, 0) // R8 += R8 00/r
35 I(ADDrr16 , "add", 0, 0) // R16 += R16 01/r
36 I(ADDrr32 , "addl", 0, 0) // R32 += R32 02/r
39 // At this point, I is dead to undefine the macro