1 //===- PowerPCReg.td - Describe the PowerPC Register File -------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
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.
8 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
13 class PPCReg : Register {
14 let Namespace = "PowerPC";
17 // We identify all our registers with a 5-bit ID, for consistency's sake.
19 // GPR - One of the 32 32-bit general-purpose registers
20 class GPR<bits<5> num> : PPCReg {
21 field bits<5> Num = num;
24 // SPR - One of the 32-bit special-purpose registers
25 class SPR<bits<5> num> : PPCReg {
26 field bits<5> Num = num;
29 // FPR - One of the 32 64-bit floating-point registers
30 class FPR<bits<5> num> : PPCReg {
31 field bits<5> Num = num;
34 // CR - One of the 8 4-bit condition registers
35 class CR<bits<5> num> : PPCReg {
36 field bits<5> Num = num;
39 // General-purpose registers
40 def R0 : GPR< 0>; def R1 : GPR< 1>; def R2 : GPR< 2>; def R3 : GPR< 3>;
41 def R4 : GPR< 4>; def R5 : GPR< 5>; def R6 : GPR< 6>; def R7 : GPR< 7>;
42 def R8 : GPR< 8>; def R9 : GPR< 9>; def R10 : GPR<10>; def R11 : GPR<11>;
43 def R12 : GPR<12>; def R13 : GPR<13>; def R14 : GPR<14>; def R15 : GPR<15>;
44 def R16 : GPR<16>; def R17 : GPR<17>; def R18 : GPR<18>; def R19 : GPR<19>;
45 def R20 : GPR<20>; def R21 : GPR<21>; def R22 : GPR<22>; def R23 : GPR<23>;
46 def R24 : GPR<24>; def R25 : GPR<25>; def R26 : GPR<26>; def R27 : GPR<27>;
47 def R28 : GPR<28>; def R29 : GPR<29>; def R30 : GPR<30>; def R31 : GPR<31>;
49 // Floating-point registers
50 def F0 : FPR< 0>; def F1 : FPR< 1>; def F2 : FPR< 2>; def F3 : FPR< 3>;
51 def F4 : FPR< 4>; def F5 : FPR< 5>; def F6 : FPR< 6>; def F7 : FPR< 7>;
52 def F8 : FPR< 8>; def F9 : FPR< 9>; def F10 : FPR<10>; def F11 : FPR<11>;
53 def F12 : FPR<12>; def F13 : FPR<13>; def F14 : FPR<14>; def F15 : FPR<15>;
54 def F16 : FPR<16>; def F17 : FPR<17>; def F18 : FPR<18>; def F19 : FPR<19>;
55 def F20 : FPR<20>; def F21 : FPR<21>; def F22 : FPR<22>; def F23 : FPR<23>;
56 def F24 : FPR<24>; def F25 : FPR<25>; def F26 : FPR<26>; def F27 : FPR<27>;
57 def F28 : FPR<28>; def F29 : FPR<29>; def F30 : FPR<30>; def F31 : FPR<31>;
59 // Condition registers
60 def CR0 : CR<0>; def CR1 : CR<1>; def CR2 : CR<2>; def CR3 : CR<3>;
61 def CR4 : CR<4>; def CR5 : CR<5>; def CR6 : CR<6>; def CR7 : CR<7>;
63 // Floating-point status and control register
65 // fiXed-point Exception Register? :-)
71 // These are the "time base" registers which are read-only in user mode.
75 /// Register classes: one for floats and another for non-floats.
76 def GPRC : RegisterClass<i32, 4, [R0, R1, R2, R3, R4, R5, R6, R7,
77 R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21,
78 R22, R23, R24, R25, R26, R27, R28, R29, R30, R31]>;
79 def FPRC : RegisterClass<f64, 8, [F0, F1, F2, F3, F4, F5, F6, F7,
80 F8, F9, F10, F11, F12, F13, F14, F15, F16, F17, F18, F19, F20, F21,
81 F22, F23, F24, F25, F26, F27, F28, F29, F30, F31]>;