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_WebAssemblyTableswitch : 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 WebAssemblytableswitch : SDNode<"WebAssemblyISD::TABLESWITCH", 56 SDT_WebAssemblyTableswitch, 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 69def bb_op : Operand<OtherVT>; 70 71//===----------------------------------------------------------------------===// 72// WebAssembly Instruction Format Definitions. 73//===----------------------------------------------------------------------===// 74 75include "WebAssemblyInstrFormats.td" 76 77//===----------------------------------------------------------------------===// 78// Additional instructions. 79//===----------------------------------------------------------------------===// 80 81multiclass 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))]>; 85} 86defm : ARGUMENT<I32>; 87defm : ARGUMENT<I64>; 88defm : ARGUMENT<F32>; 89defm : ARGUMENT<F64>; 90 91let Defs = [ARGUMENTS] in { 92 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. 96multiclass 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, $src">; 102 103 // COPY_LOCAL is not an actual instruction in wasm, but since we allow 104 // get_local and set_local to be implicit, we can have a COPY_LOCAL which 105 // is actually a no-op because all the work is done in the implied 106 // get_local and set_local. 107 let isAsCheapAsAMove = 1 in 108 def COPY_LOCAL_#vt : I<(outs vt:$res), (ins vt:$src), [], 109 "copy_local\t$res, $src">; 110} 111defm : LOCAL<I32>; 112defm : LOCAL<I64>; 113defm : LOCAL<F32>; 114defm : LOCAL<F64>; 115 116let isMoveImm = 1 in { 117def CONST_I32 : I<(outs I32:$res), (ins i32imm:$imm), 118 [(set I32:$res, imm:$imm)], 119 "i32.const\t$res, $imm">; 120def CONST_I64 : I<(outs I64:$res), (ins i64imm:$imm), 121 [(set I64:$res, imm:$imm)], 122 "i64.const\t$res, $imm">; 123def CONST_F32 : I<(outs F32:$res), (ins f32imm:$imm), 124 [(set F32:$res, fpimm:$imm)], 125 "f32.const\t$res, $imm">; 126def CONST_F64 : I<(outs F64:$res), (ins f64imm:$imm), 127 [(set F64:$res, fpimm:$imm)], 128 "f64.const\t$res, $imm">; 129} // isMoveImm = 1 130 131} // Defs = [ARGUMENTS] 132 133def : Pat<(i32 (WebAssemblywrapper tglobaladdr:$dst)), 134 (CONST_I32 tglobaladdr:$dst)>; 135def : Pat<(i32 (WebAssemblywrapper texternalsym:$dst)), 136 (CONST_I32 texternalsym:$dst)>; 137def : Pat<(i32 (WebAssemblywrapper tjumptable:$dst)), 138 (CONST_I32 tjumptable:$dst)>; 139 140let Defs = [ARGUMENTS] in { 141 142// Function signature and local variable declaration "instructions". 143def PARAM : I<(outs), (ins variable_ops), [], ".param \t">; 144def RESULT : I<(outs), (ins variable_ops), [], ".result \t">; 145def LOCAL : I<(outs), (ins variable_ops), [], ".local \t">; 146 147} // Defs = [ARGUMENTS] 148 149//===----------------------------------------------------------------------===// 150// Additional sets of instructions. 151//===----------------------------------------------------------------------===// 152 153include "WebAssemblyInstrMemory.td" 154include "WebAssemblyInstrCall.td" 155include "WebAssemblyInstrControl.td" 156include "WebAssemblyInstrInteger.td" 157include "WebAssemblyInstrConv.td" 158include "WebAssemblyInstrFloat.td" 159include "WebAssemblyInstrAtomics.td" 160include "WebAssemblyInstrSIMD.td" 161