1//- WebAssembly.td - Describe the WebAssembly Target Machine --*- tablegen -*-//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9///
10/// \file
11/// \brief This is a target description file for the WebAssembly architecture,
12/// which is also known as "wasm".
13///
14//===----------------------------------------------------------------------===//
15
16//===----------------------------------------------------------------------===//
17// Target-independent interfaces which we are implementing
18//===----------------------------------------------------------------------===//
19
20include "llvm/Target/Target.td"
21
22//===----------------------------------------------------------------------===//
23// WebAssembly Subtarget features.
24//===----------------------------------------------------------------------===//
25
26def FeatureSIMD128 : SubtargetFeature<"simd128", "HasSIMD128", "true",
27                                      "Enable 128-bit SIMD">;
28def FeatureAtomics : SubtargetFeature<"atomics", "HasAtomics", "true",
29                                      "Enable Atomics">;
30def FeatureNontrappingFPToInt :
31      SubtargetFeature<"nontrapping-fptoint",
32                       "HasNontrappingFPToInt", "true",
33                       "Enable non-trapping float-to-int conversion operators">;
34
35def FeatureSignExt :
36      SubtargetFeature<"sign-ext",
37                       "HasSignExt", "true",
38                       "Enable sign extension operators">;
39
40//===----------------------------------------------------------------------===//
41// Architectures.
42//===----------------------------------------------------------------------===//
43
44//===----------------------------------------------------------------------===//
45// Register File Description
46//===----------------------------------------------------------------------===//
47
48include "WebAssemblyRegisterInfo.td"
49
50//===----------------------------------------------------------------------===//
51// Instruction Descriptions
52//===----------------------------------------------------------------------===//
53
54include "WebAssemblyInstrInfo.td"
55
56def WebAssemblyInstrInfo : InstrInfo;
57
58//===----------------------------------------------------------------------===//
59// WebAssembly Processors supported.
60//===----------------------------------------------------------------------===//
61
62// Minimal Viable Product.
63def : ProcessorModel<"mvp", NoSchedModel, []>;
64
65// Generic processor: latest stable version.
66def : ProcessorModel<"generic", NoSchedModel, []>;
67
68// Latest and greatest experimental version of WebAssembly. Bugs included!
69def : ProcessorModel<"bleeding-edge", NoSchedModel,
70                      [FeatureSIMD128, FeatureAtomics]>;
71
72//===----------------------------------------------------------------------===//
73// Target Declaration
74//===----------------------------------------------------------------------===//
75
76def WebAssembly : Target {
77  let InstructionSet = WebAssemblyInstrInfo;
78}
79