llvm-6502/lib/Target/Skeleton/SkeletonRegisterInfo.td
Chris Lattner b228657acc Revamp the Register class, and allow the use of the RegisterGroup class to
specify aliases directly in register definitions.

Patch contributed by Jason Eckhardt!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16330 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-14 04:17:02 +00:00

106 lines
3.9 KiB
C++

//===- SkeletonRegisterInfo.td - Describe the Register File -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the target's register file in Tablegen format.
//
//===----------------------------------------------------------------------===//
class SkelReg<string n> : Register<n> {
let Namespace = "Skeleton";
}
// This is roughly the PPC register file. You should replace all of this with
// whatever your target needs.
// GPR - One of the 32 32-bit general-purpose registers
class GPR<bits<5> num, string n> : SkelReg<n> {
field bits<5> Num = num;
}
// SPR - One of the 32-bit special-purpose registers
class SPR<bits<5> num, string n> : SkelReg<n> {
field bits<5> Num = num;
}
// FPR - One of the 32 64-bit floating-point registers
class FPR<bits<5> num, string n> : SkelReg<n> {
field bits<5> Num = num;
}
// CR - One of the 8 4-bit condition registers
class CR<bits<5> num, string n> : SkelReg<n> {
field bits<5> Num = num;
}
// General-purpose registers
def R0 : GPR< 0, "R0">; def R1 : GPR< 1, "R1">;
def R2 : GPR< 2, "R2">; def R3 : GPR< 3, "R3">;
def R4 : GPR< 4, "R4">; def R5 : GPR< 5, "R5">;
def R6 : GPR< 6, "R6">; def R7 : GPR< 7, "R7">;
def R8 : GPR< 8, "R8">; def R9 : GPR< 9, "R9">;
def R10 : GPR<10, "R10">; def R11 : GPR<11, "R11">;
def R12 : GPR<12, "R12">; def R13 : GPR<13, "R13">;
def R14 : GPR<14, "R14">; def R15 : GPR<15, "R15">;
def R16 : GPR<16, "R16">; def R17 : GPR<17, "R17">;
def R18 : GPR<18, "R18">; def R19 : GPR<19, "R19">;
def R20 : GPR<20, "R20">; def R21 : GPR<21, "R21">;
def R22 : GPR<22, "R22">; def R23 : GPR<23, "R23">;
def R24 : GPR<24, "R24">; def R25 : GPR<25, "R25">;
def R26 : GPR<26, "R26">; def R27 : GPR<27, "R27">;
def R28 : GPR<28, "R28">; def R29 : GPR<29, "R29">;
def R30 : GPR<30, "R30">; def R31 : GPR<31, "R31">;
// Floating-point registers
def F0 : FPR< 0, "F0">; def F1 : FPR< 1, "F1">;
def F2 : FPR< 2, "F2">; def F3 : FPR< 3, "F3">;
def F4 : FPR< 4, "F4">; def F5 : FPR< 5, "F5">;
def F6 : FPR< 6, "F6">; def F7 : FPR< 7, "F7">;
def F8 : FPR< 8, "F8">; def F9 : FPR< 9, "F9">;
def F10 : FPR<10, "F10">; def F11 : FPR<11, "F11">;
def F12 : FPR<12, "F12">; def F13 : FPR<13, "F13">;
def F14 : FPR<14, "F14">; def F15 : FPR<15, "F15">;
def F16 : FPR<16, "F16">; def F17 : FPR<17, "F17">;
def F18 : FPR<18, "F18">; def F19 : FPR<19, "F19">;
def F20 : FPR<20, "F20">; def F21 : FPR<21, "F21">;
def F22 : FPR<22, "F22">; def F23 : FPR<23, "F23">;
def F24 : FPR<24, "F24">; def F25 : FPR<25, "F25">;
def F26 : FPR<26, "F26">; def F27 : FPR<27, "F27">;
def F28 : FPR<28, "F28">; def F29 : FPR<29, "F29">;
def F30 : FPR<30, "F30">; def F31 : FPR<31, "F31">;
// Condition registers
def CR0 : CR<0, "CR0">; def CR1 : CR<1, "CR1">;
def CR2 : CR<2, "CR2">; def CR3 : CR<3, "CR3">;
def CR4 : CR<4, "CR4">; def CR5 : CR<5, "CR5">;
def CR6 : CR<6, "CR6">; def CR7 : CR<7, "CR7">;
// Floating-point status and control register
def FPSCR : SPR<0, "FPSCR">;
// fiXed-point Exception Register? :-)
def XER : SPR<1, "XER">;
// Link register
def LR : SPR<2, "LR">;
// Count register
def CTR : SPR<3, "CTR">;
// These are the "time base" registers which are read-only in user mode.
def TBL : SPR<4, "TBL">;
def TBU : SPR<5, "TBU">;
/// Register classes: one for floats and another for non-floats.
///
def GPRC : RegisterClass<i32, 32, [R0, R1, R2, R3, R4, R5, R6, R7,
R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21,
R22, R23, R24, R25, R26, R27, R28, R29, R30, R31]>;
def FPRC : RegisterClass<f64, 64, [F0, F1, F2, F3, F4, F5, F6, F7,
F8, F9, F10, F11, F12, F13, F14, F15, F16, F17, F18, F19, F20, F21,
F22, F23, F24, F25, F26, F27, F28, F29, F30, F31]>;