1 //===-- SPIRVRegisterInfo.td - SPIR-V Register defs --------*- tablegen -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // Declarations that describe the SPIR-V register file.
11 //===----------------------------------------------------------------------===//
13 let Namespace = "SPIRV" in {
14 // Pointer types for patterns with the GlobalISelEmitter
15 def p32 : PtrValueType <i32, 0>;
16 def p64 : PtrValueType <i64, 0>;
18 class VTPtrVec<int nelem, PtrValueType ptr>
19 : VTVec<nelem, ValueType<ptr.Size, ptr.Value>, ptr.Value> {
23 def v2p32 : VTPtrVec<2, p32>;
24 def v2p64 : VTPtrVec<2, p64>;
26 // Class for type registers
27 def TYPE0 : Register<"TYPE0">;
28 def TYPE : RegisterClass<"SPIRV", [i32], 32, (add TYPE0)>;
30 // Class for non-type registers
31 def ID0 : Register<"ID0">;
32 def ID640 : Register<"ID640">;
33 def fID0 : Register<"fID0">;
34 def fID640 : Register<"fID640">;
35 def pID320 : Register<"pID320">;
36 def pID640 : Register<"pID640">;
37 def vID0 : Register<"vID0">;
38 def vfID0 : Register<"vfID0">;
39 def vpID320 : Register<"vpID320">;
40 def vpID640 : Register<"vpID640">;
42 def ID : RegisterClass<"SPIRV", [i32], 32, (add ID0)>;
43 def ID64 : RegisterClass<"SPIRV", [i64], 32, (add ID640)>;
44 def fID : RegisterClass<"SPIRV", [f32], 32, (add fID0)>;
45 def fID64 : RegisterClass<"SPIRV", [f64], 32, (add fID640)>;
46 def pID32 : RegisterClass<"SPIRV", [p32], 32, (add pID320)>;
47 def pID64 : RegisterClass<"SPIRV", [p64], 32, (add pID640)>;
48 def vID : RegisterClass<"SPIRV", [v2i32], 32, (add vID0)>;
49 def vfID : RegisterClass<"SPIRV", [v2f32], 32, (add vfID0)>;
50 def vpID32 : RegisterClass<"SPIRV", [v2p32], 32, (add vpID320)>;
51 def vpID64 : RegisterClass<"SPIRV", [v2p64], 32, (add vpID640)>;
53 def ANYID : RegisterClass<
55 [i32, i64, f32, f64, p32, p64, v2i32, v2f32, v2p32, v2p64],
57 (add ID0, ID640, fID0, fID640, pID320, pID640, vID0, vfID0, vpID320, vpID640)>;
59 // A few instructions like OpName can take ids from both type and non-type
60 // instructions, so we need a super-class to allow for both to count as valid
61 // arguments for these instructions.
62 def ANY : RegisterClass<"SPIRV", [i32], 32, (add TYPE, ID)>;