1 //===- AlphaRegisterInfo.td - The Alpha Register File ------*- tablegen -*-===//
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 //===----------------------------------------------------------------------===//
10 // This file describes the Alpha register set.
12 //===----------------------------------------------------------------------===//
14 class AlphaReg<string n> : Register<n> {
16 let Namespace = "Alpha";
19 // We identify all our registers with a 5-bit ID, for consistency's sake.
21 // GPR - One of the 32 32-bit general-purpose registers
22 class GPR<bits<5> num, string n> : AlphaReg<n> {
26 // FPR - One of the 32 64-bit floating-point registers
27 class FPR<bits<5> num, string n> : AlphaReg<n> {
37 // General-purpose registers
38 def R0 : GPR< 0, "$0">; def R1 : GPR< 1, "$1">;
39 def R2 : GPR< 2, "$2">; def R3 : GPR< 3, "$3">;
40 def R4 : GPR< 4, "$4">; def R5 : GPR< 5, "$5">;
41 def R6 : GPR< 6, "$6">; def R7 : GPR< 7, "$7">;
42 def R8 : GPR< 8, "$8">; def R9 : GPR< 9, "$9">;
43 def R10 : GPR<10, "$10">; def R11 : GPR<11, "$11">;
44 def R12 : GPR<12, "$12">; def R13 : GPR<13, "$13">;
45 def R14 : GPR<14, "$14">; def R15 : GPR<15, "$15">;
46 def R16 : GPR<16, "$16">; def R17 : GPR<17, "$17">;
47 def R18 : GPR<18, "$18">; def R19 : GPR<19, "$19">;
48 def R20 : GPR<20, "$20">; def R21 : GPR<21, "$21">;
49 def R22 : GPR<22, "$22">; def R23 : GPR<23, "$23">;
50 def R24 : GPR<24, "$24">; def R25 : GPR<25, "$25">;
51 def R26 : GPR<26, "$26">; def R27 : GPR<27, "$27">;
52 def R28 : GPR<28, "$28">; def R29 : GPR<29, "$29">;
53 def R30 : GPR<30, "$30">; def R31 : GPR<31, "$31">;
55 // Floating-point registers
56 def F0 : FPR< 0, "$f0">; def F1 : FPR< 1, "$f1">;
57 def F2 : FPR< 2, "$f2">; def F3 : FPR< 3, "$f3">;
58 def F4 : FPR< 4, "$f4">; def F5 : FPR< 5, "$f5">;
59 def F6 : FPR< 6, "$f6">; def F7 : FPR< 7, "$f7">;
60 def F8 : FPR< 8, "$f8">; def F9 : FPR< 9, "$f9">;
61 def F10 : FPR<10, "$f10">; def F11 : FPR<11, "$f11">;
62 def F12 : FPR<12, "$f12">; def F13 : FPR<13, "$f13">;
63 def F14 : FPR<14, "$f14">; def F15 : FPR<15, "$f15">;
64 def F16 : FPR<16, "$f16">; def F17 : FPR<17, "$f17">;
65 def F18 : FPR<18, "$f18">; def F19 : FPR<19, "$f19">;
66 def F20 : FPR<20, "$f20">; def F21 : FPR<21, "$f21">;
67 def F22 : FPR<22, "$f22">; def F23 : FPR<23, "$f23">;
68 def F24 : FPR<24, "$f24">; def F25 : FPR<25, "$f25">;
69 def F26 : FPR<26, "$f26">; def F27 : FPR<27, "$f27">;
70 def F28 : FPR<28, "$f28">; def F29 : FPR<29, "$f29">;
71 def F30 : FPR<30, "$f30">; def F31 : FPR<31, "$f31">;
78 // $28 is undefined after any and all calls
81 // Don't allocate 15, 28, 30, 31
82 def GPRC : RegisterClass<i64, 64,
84 [R0, R1, R2, R3, R4, R5, R6, R7, R8, R16, R17, R18, R19, R20, R21, R22,
85 R23, R24, R25, R26, R27,
87 R9, R10, R11, R12, R13, R14, R29 ]>;
88 // Note: R28 is reserved for the assembler
90 // Don't allocate 15, 29, 30, 31
91 // Allocation volatiles only for now
92 def FPRC : RegisterClass<f64, 64, [F0, F1,
93 F10, F11, F12, F13, F14, F15, F16, F17, F18, F19,
94 F20, F21, F22, F23, F24, F25, F26, F27, F28, F29, F30,
96 F2, F3, F4, F5, F6, F7, F8, F9