lib/Target/X86/X86.td

   1 //===- X86.td - Target definition file for the Intel X86 arch ---*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file was developed by the LLVM research group and is distributed under
   6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This is a target description file for the Intel i386 architecture, refered to
  11 // here as the "X86" architecture.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 // Get the target-independent interfaces which we are implementing...
  16 //
  17 include "../Target.td"
  18
  19 //===----------------------------------------------------------------------===//
  20 // Register File Description
  21 //===----------------------------------------------------------------------===//
  22
  23 include "X86RegisterInfo.td"
  24
  25 //===----------------------------------------------------------------------===//
  26 // Instruction Descriptions
  27 //===----------------------------------------------------------------------===//
  28
  29 include "X86InstrInfo.td"
  30
  31 def X86InstrInfo : InstrInfo {
  32   let PHIInst  = PHI;
  33
  34   // Define how we want to layout our TargetSpecific information field... This
  35   // should be kept up-to-date with the fields in the X86InstrInfo.h file.
  36   let TSFlagsFields = ["FormBits",
  37                        "hasOpSizePrefix",
  38                        "Prefix",
  39                        "MemTypeBits",
  40                        "ImmTypeBits",
  41                        "FPFormBits",
  42                        "printImplicitUsesAfter",
  43                        "printImplicitUsesBefore",
  44                        "printImplicitDefsBefore",
  45                        "printImplicitDefsAfter",
  46                        "Opcode"];
  47   let TSFlagsShifts = [0,
  48                        5,
  49                        6,
  50                        10,
  51                        13,
  52                        15,
  53                        18,
  54                        19,
  55                        20,
  56                        21,
  57                        22];
  58 }
  59
  60 def X86 : Target {
  61   // Specify the callee saved registers.
  62   let CalleeSavedRegisters = [ESI, EDI, EBX, EBP];
  63
  64   // Yes, pointers are 32-bits in size.
  65   let PointerType = i32;
  66
  67   // Information about the instructions...
  68   let InstructionSet = X86InstrInfo;
  69 }