1// WebAssemblyInstrInfo.td-Describe the WebAssembly Instructions-*- 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 WebAssembly Instruction definitions.
12///
13//===----------------------------------------------------------------------===//
14
15//===----------------------------------------------------------------------===//
16// WebAssembly Instruction Predicate Definitions.
17//===----------------------------------------------------------------------===//
18
19def HasAddr32 : Predicate<"!Subtarget->hasAddr64()">;
20def HasAddr64 : Predicate<"Subtarget->hasAddr64()">;
21def HasSIMD128 : Predicate<"Subtarget->hasSIMD128()">,
22                           AssemblerPredicate<"FeatureSIMD128", "simd128">;
23
24//===----------------------------------------------------------------------===//
25// WebAssembly-specific DAG Node Types.
26//===----------------------------------------------------------------------===//
27
28def SDT_WebAssemblyCallSeqStart : SDCallSeqStart<[SDTCisVT<0, iPTR>]>;
29def SDT_WebAssemblyCallSeqEnd :
30    SDCallSeqEnd<[SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
31def SDT_WebAssemblyCall0    : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
32def SDT_WebAssemblyCall1    : SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>;
33def SDT_WebAssemblySwitch   : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
34def SDT_WebAssemblyArgument : SDTypeProfile<1, 1, [SDTCisVT<1, i32>]>;
35def SDT_WebAssemblyReturn   : SDTypeProfile<0, -1, []>;
36def SDT_WebAssemblyWrapper  : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>,
37                                                   SDTCisPtrTy<0>]>;
38
39//===----------------------------------------------------------------------===//
40// WebAssembly-specific DAG Nodes.
41//===----------------------------------------------------------------------===//
42
43def WebAssemblycallseq_start :
44    SDNode<"ISD::CALLSEQ_START", SDT_WebAssemblyCallSeqStart,
45           [SDNPHasChain, SDNPOutGlue]>;
46def WebAssemblycallseq_end :
47    SDNode<"ISD::CALLSEQ_END", SDT_WebAssemblyCallSeqEnd,
48           [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
49def WebAssemblycall0 : SDNode<"WebAssemblyISD::CALL0",
50                              SDT_WebAssemblyCall0,
51                              [SDNPHasChain, SDNPVariadic]>;
52def WebAssemblycall1 : SDNode<"WebAssemblyISD::CALL1",
53                              SDT_WebAssemblyCall1,
54                              [SDNPHasChain, SDNPVariadic]>;
55def WebAssemblyswitch : SDNode<"WebAssemblyISD::SWITCH",
56                               SDT_WebAssemblySwitch,
57                               [SDNPHasChain, SDNPVariadic]>;
58def WebAssemblyargument : SDNode<"WebAssemblyISD::ARGUMENT",
59                                 SDT_WebAssemblyArgument>;
60def WebAssemblyreturn   : SDNode<"WebAssemblyISD::RETURN",
61                                 SDT_WebAssemblyReturn, [SDNPHasChain]>;
62def WebAssemblywrapper  : SDNode<"WebAssemblyISD::Wrapper",
63                                 SDT_WebAssemblyWrapper>;
64
65//===----------------------------------------------------------------------===//
66// WebAssembly-specific Operands.
67//===----------------------------------------------------------------------===//
68
69/*
70 * TODO(jfb): Add the following.
71 *
72 * get_local: read the current value of a local variable
73 * set_local: set the current value of a local variable
74*/
75
76def bb_op : Operand<OtherVT>;
77def tjumptable_op : Operand<iPTR>;
78def global : Operand<iPTR>;
79
80//===----------------------------------------------------------------------===//
81// WebAssembly Instruction Format Definitions.
82//===----------------------------------------------------------------------===//
83
84include "WebAssemblyInstrFormats.td"
85
86multiclass ARGUMENT<WebAssemblyRegClass vt> {
87  def ARGUMENT_#vt : I<(outs vt:$res), (ins i32imm:$argno),
88                       [(set vt:$res, (WebAssemblyargument timm:$argno))]>;
89}
90defm : ARGUMENT<I32>;
91defm : ARGUMENT<I64>;
92defm : ARGUMENT<F32>;
93defm : ARGUMENT<F64>;
94
95
96def Const_I32 : I<(outs I32:$res), (ins i32imm:$imm),
97                  [(set I32:$res, imm:$imm)],
98                  "i32.const $res, $imm">;
99def Const_I64 : I<(outs I64:$res), (ins i64imm:$imm),
100                  [(set I64:$res, imm:$imm)],
101                  "i64.const $res, $imm">;
102def Const_F32 : I<(outs F32:$res), (ins f32imm:$imm),
103                  [(set F32:$res, fpimm:$imm)],
104                  "f32.const $res, $imm">;
105def Const_F64 : I<(outs F64:$res), (ins f64imm:$imm),
106                  [(set F64:$res, fpimm:$imm)],
107                  "f64.const $res, $imm">;
108
109// Special types of immediates. FIXME: Hard-coded as 32-bit for now.
110def GLOBAL : I<(outs I32:$dst), (ins global:$addr),
111               [(set I32:$dst, (WebAssemblywrapper tglobaladdr:$addr))],
112               "global $dst, $addr">;
113def JUMP_TABLE : I<(outs I32:$dst), (ins tjumptable_op:$addr),
114                   [(set I32:$dst, (WebAssemblywrapper tjumptable:$addr))],
115                   "jump_table $dst, $addr">;
116
117//===----------------------------------------------------------------------===//
118// Additional sets of instructions.
119//===----------------------------------------------------------------------===//
120
121include "WebAssemblyInstrMemory.td"
122include "WebAssemblyInstrCall.td"
123include "WebAssemblyInstrControl.td"
124include "WebAssemblyInstrInteger.td"
125include "WebAssemblyInstrFloat.td"
126include "WebAssemblyInstrConv.td"
127include "WebAssemblyInstrAtomics.td"
128include "WebAssemblyInstrSIMD.td"
129