1 // WebAssemblyInstrInfo.td-Describe the WebAssembly Instructions-*- tablegen -*-
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief WebAssembly Instruction definitions.
13 //===----------------------------------------------------------------------===//
15 //===----------------------------------------------------------------------===//
16 // WebAssembly Instruction Predicate Definitions.
17 //===----------------------------------------------------------------------===//
19 def HasAddr32 : Predicate<"!Subtarget->hasAddr64()">;
20 def HasAddr64 : Predicate<"Subtarget->hasAddr64()">;
21 def HasSIMD128 : Predicate<"Subtarget->hasSIMD128()">,
22 AssemblerPredicate<"FeatureSIMD128", "simd128">;
24 //===----------------------------------------------------------------------===//
25 // WebAssembly-specific DAG Node Types.
26 //===----------------------------------------------------------------------===//
28 def SDT_WebAssemblyCallSeqStart : SDCallSeqStart<[SDTCisVT<0, iPTR>]>;
29 def SDT_WebAssemblyCallSeqEnd :
30 SDCallSeqEnd<[SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
31 def SDT_WebAssemblyCall0 : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
32 def SDT_WebAssemblyCall1 : SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>;
33 def SDT_WebAssemblyTableswitch : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
34 def SDT_WebAssemblyArgument : SDTypeProfile<1, 1, [SDTCisVT<1, i32>]>;
35 def SDT_WebAssemblyReturn : SDTypeProfile<0, -1, []>;
36 def SDT_WebAssemblyWrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>,
39 //===----------------------------------------------------------------------===//
40 // WebAssembly-specific DAG Nodes.
41 //===----------------------------------------------------------------------===//
43 def WebAssemblycallseq_start :
44 SDNode<"ISD::CALLSEQ_START", SDT_WebAssemblyCallSeqStart,
45 [SDNPHasChain, SDNPOutGlue]>;
46 def WebAssemblycallseq_end :
47 SDNode<"ISD::CALLSEQ_END", SDT_WebAssemblyCallSeqEnd,
48 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
49 def WebAssemblycall0 : SDNode<"WebAssemblyISD::CALL0",
51 [SDNPHasChain, SDNPVariadic]>;
52 def WebAssemblycall1 : SDNode<"WebAssemblyISD::CALL1",
54 [SDNPHasChain, SDNPVariadic]>;
55 def WebAssemblytableswitch : SDNode<"WebAssemblyISD::TABLESWITCH",
56 SDT_WebAssemblyTableswitch,
57 [SDNPHasChain, SDNPVariadic]>;
58 def WebAssemblyargument : SDNode<"WebAssemblyISD::ARGUMENT",
59 SDT_WebAssemblyArgument>;
60 def WebAssemblyreturn : SDNode<"WebAssemblyISD::RETURN",
61 SDT_WebAssemblyReturn, [SDNPHasChain]>;
62 def WebAssemblywrapper : SDNode<"WebAssemblyISD::Wrapper",
63 SDT_WebAssemblyWrapper>;
65 //===----------------------------------------------------------------------===//
66 // WebAssembly-specific Operands.
67 //===----------------------------------------------------------------------===//
69 def bb_op : Operand<OtherVT>;
71 //===----------------------------------------------------------------------===//
72 // WebAssembly Instruction Format Definitions.
73 //===----------------------------------------------------------------------===//
75 include "WebAssemblyInstrFormats.td"
77 //===----------------------------------------------------------------------===//
78 // Additional instructions.
79 //===----------------------------------------------------------------------===//
81 multiclass ARGUMENT<WebAssemblyRegClass vt> {
82 let hasSideEffects = 1, Uses = [ARGUMENTS], isCodeGenOnly = 1 in
83 def ARGUMENT_#vt : I<(outs vt:$res), (ins i32imm:$argno),
84 [(set vt:$res, (WebAssemblyargument timm:$argno))]>;
91 let Defs = [ARGUMENTS] in {
93 // get_local and set_local are not generated by instruction selection; they
94 // are implied by virtual register uses and defs in most contexts. However,
95 // they are explicitly emitted for special purposes.
96 multiclass LOCAL<WebAssemblyRegClass vt> {
97 def GET_LOCAL_#vt : I<(outs vt:$res), (ins i32imm:$regno), [],
98 "get_local\t$res, $regno">;
99 // TODO: set_local returns its operand value
100 def SET_LOCAL_#vt : I<(outs), (ins i32imm:$regno, vt:$src), [],
101 "set_local\t$regno, $src">;
103 // COPY_LOCAL is not an actual instruction in wasm, but since we allow
104 // get_local and set_local to be implicit, we can have a COPY_LOCAL which
105 // is actually a no-op because all the work is done in the implied
106 // get_local and set_local.
107 let isAsCheapAsAMove = 1 in
108 def COPY_LOCAL_#vt : I<(outs vt:$res), (ins vt:$src), [],
109 "copy_local\t$res, $src">;
116 let isMoveImm = 1 in {
117 def CONST_I32 : I<(outs I32:$res), (ins i32imm:$imm),
118 [(set I32:$res, imm:$imm)],
119 "i32.const\t$res, $imm">;
120 def CONST_I64 : I<(outs I64:$res), (ins i64imm:$imm),
121 [(set I64:$res, imm:$imm)],
122 "i64.const\t$res, $imm">;
123 def CONST_F32 : I<(outs F32:$res), (ins f32imm:$imm),
124 [(set F32:$res, fpimm:$imm)],
125 "f32.const\t$res, $imm">;
126 def CONST_F64 : I<(outs F64:$res), (ins f64imm:$imm),
127 [(set F64:$res, fpimm:$imm)],
128 "f64.const\t$res, $imm">;
131 } // Defs = [ARGUMENTS]
133 def : Pat<(i32 (WebAssemblywrapper tglobaladdr:$dst)),
134 (CONST_I32 tglobaladdr:$dst)>;
135 def : Pat<(i32 (WebAssemblywrapper texternalsym:$dst)),
136 (CONST_I32 texternalsym:$dst)>;
137 def : Pat<(i32 (WebAssemblywrapper tjumptable:$dst)),
138 (CONST_I32 tjumptable:$dst)>;
140 let Defs = [ARGUMENTS] in {
142 // Function signature and local variable declaration "instructions".
143 def PARAM : I<(outs), (ins variable_ops), [], ".param \t">;
144 def RESULT : I<(outs), (ins variable_ops), [], ".result \t">;
145 def LOCAL : I<(outs), (ins variable_ops), [], ".local \t">;
147 } // Defs = [ARGUMENTS]
149 //===----------------------------------------------------------------------===//
150 // Additional sets of instructions.
151 //===----------------------------------------------------------------------===//
153 include "WebAssemblyInstrMemory.td"
154 include "WebAssemblyInstrCall.td"
155 include "WebAssemblyInstrControl.td"
156 include "WebAssemblyInstrInteger.td"
157 include "WebAssemblyInstrConv.td"
158 include "WebAssemblyInstrFloat.td"
159 include "WebAssemblyInstrAtomics.td"
160 include "WebAssemblyInstrSIMD.td"