| // WebAssemblyInstrInfo.td-Describe the WebAssembly Instructions-*- tablegen -*- |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// \brief WebAssembly Instruction definitions. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // WebAssembly Instruction Predicate Definitions. |
| //===----------------------------------------------------------------------===// |
| |
| def HasAddr32 : Predicate<"!Subtarget->hasAddr64()">; |
| def HasAddr64 : Predicate<"Subtarget->hasAddr64()">; |
| def HasSIMD128 : Predicate<"Subtarget->hasSIMD128()">, |
| AssemblerPredicate<"FeatureSIMD128", "simd128">; |
| |
| //===----------------------------------------------------------------------===// |
| // WebAssembly-specific DAG Node Types. |
| //===----------------------------------------------------------------------===// |
| |
| def SDT_WebAssemblyCallSeqStart : SDCallSeqStart<[SDTCisVT<0, iPTR>]>; |
| def SDT_WebAssemblyCallSeqEnd : |
| SDCallSeqEnd<[SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>; |
| def SDT_WebAssemblyCall0 : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>; |
| def SDT_WebAssemblyCall1 : SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>; |
| def SDT_WebAssemblyTableswitch : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>; |
| def SDT_WebAssemblyArgument : SDTypeProfile<1, 1, [SDTCisVT<1, i32>]>; |
| def SDT_WebAssemblyReturn : SDTypeProfile<0, -1, []>; |
| def SDT_WebAssemblyWrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, |
| SDTCisPtrTy<0>]>; |
| |
| //===----------------------------------------------------------------------===// |
| // WebAssembly-specific DAG Nodes. |
| //===----------------------------------------------------------------------===// |
| |
| def WebAssemblycallseq_start : |
| SDNode<"ISD::CALLSEQ_START", SDT_WebAssemblyCallSeqStart, |
| [SDNPHasChain, SDNPOutGlue]>; |
| def WebAssemblycallseq_end : |
| SDNode<"ISD::CALLSEQ_END", SDT_WebAssemblyCallSeqEnd, |
| [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>; |
| def WebAssemblycall0 : SDNode<"WebAssemblyISD::CALL0", |
| SDT_WebAssemblyCall0, |
| [SDNPHasChain, SDNPVariadic]>; |
| def WebAssemblycall1 : SDNode<"WebAssemblyISD::CALL1", |
| SDT_WebAssemblyCall1, |
| [SDNPHasChain, SDNPVariadic]>; |
| def WebAssemblytableswitch : SDNode<"WebAssemblyISD::TABLESWITCH", |
| SDT_WebAssemblyTableswitch, |
| [SDNPHasChain, SDNPVariadic]>; |
| def WebAssemblyargument : SDNode<"WebAssemblyISD::ARGUMENT", |
| SDT_WebAssemblyArgument>; |
| def WebAssemblyreturn : SDNode<"WebAssemblyISD::RETURN", |
| SDT_WebAssemblyReturn, [SDNPHasChain]>; |
| def WebAssemblywrapper : SDNode<"WebAssemblyISD::Wrapper", |
| SDT_WebAssemblyWrapper>; |
| |
| //===----------------------------------------------------------------------===// |
| // WebAssembly-specific Operands. |
| //===----------------------------------------------------------------------===// |
| |
| let OperandNamespace = "WebAssembly" in { |
| |
| let OperandType = "OPERAND_BASIC_BLOCK" in |
| def bb_op : Operand<OtherVT>; |
| |
| let OperandType = "OPERAND_FPIMM" in { |
| def f32imm_op : Operand<f32>; |
| def f64imm_op : Operand<f64>; |
| } // OperandType = "OPERAND_FPIMM" |
| |
| } // OperandNamespace = "WebAssembly" |
| |
| //===----------------------------------------------------------------------===// |
| // WebAssembly Instruction Format Definitions. |
| //===----------------------------------------------------------------------===// |
| |
| include "WebAssemblyInstrFormats.td" |
| |
| //===----------------------------------------------------------------------===// |
| // Additional instructions. |
| //===----------------------------------------------------------------------===// |
| |
| multiclass ARGUMENT<WebAssemblyRegClass vt> { |
| let hasSideEffects = 1, Uses = [ARGUMENTS], isCodeGenOnly = 1 in |
| def ARGUMENT_#vt : I<(outs vt:$res), (ins i32imm:$argno), |
| [(set vt:$res, (WebAssemblyargument timm:$argno))]>; |
| } |
| defm : ARGUMENT<I32>; |
| defm : ARGUMENT<I64>; |
| defm : ARGUMENT<F32>; |
| defm : ARGUMENT<F64>; |
| |
| let Defs = [ARGUMENTS] in { |
| |
| // get_local and set_local are not generated by instruction selection; they |
| // are implied by virtual register uses and defs in most contexts. However, |
| // they are explicitly emitted for special purposes. |
| multiclass LOCAL<WebAssemblyRegClass vt> { |
| def GET_LOCAL_#vt : I<(outs vt:$res), (ins i32imm:$regno), [], |
| "get_local\t$res, $regno">; |
| // TODO: set_local returns its operand value |
| def SET_LOCAL_#vt : I<(outs), (ins i32imm:$regno, vt:$src), [], |
| "set_local\t$regno, $src">; |
| |
| // COPY_LOCAL is not an actual instruction in wasm, but since we allow |
| // get_local and set_local to be implicit, we can have a COPY_LOCAL which |
| // is actually a no-op because all the work is done in the implied |
| // get_local and set_local. |
| let isAsCheapAsAMove = 1 in |
| def COPY_LOCAL_#vt : I<(outs vt:$res), (ins vt:$src), [], |
| "copy_local\t$res, $src">; |
| } |
| defm : LOCAL<I32>; |
| defm : LOCAL<I64>; |
| defm : LOCAL<F32>; |
| defm : LOCAL<F64>; |
| |
| let isMoveImm = 1 in { |
| def CONST_I32 : I<(outs I32:$res), (ins i32imm:$imm), |
| [(set I32:$res, imm:$imm)], |
| "i32.const\t$res, $imm">; |
| def CONST_I64 : I<(outs I64:$res), (ins i64imm:$imm), |
| [(set I64:$res, imm:$imm)], |
| "i64.const\t$res, $imm">; |
| def CONST_F32 : I<(outs F32:$res), (ins f32imm_op:$imm), |
| [(set F32:$res, fpimm:$imm)], |
| "f32.const\t$res, $imm">; |
| def CONST_F64 : I<(outs F64:$res), (ins f64imm_op:$imm), |
| [(set F64:$res, fpimm:$imm)], |
| "f64.const\t$res, $imm">; |
| } // isMoveImm = 1 |
| |
| } // Defs = [ARGUMENTS] |
| |
| def : Pat<(i32 (WebAssemblywrapper tglobaladdr:$addr)), |
| (CONST_I32 tglobaladdr:$addr)>; |
| def : Pat<(i32 (WebAssemblywrapper texternalsym:$addr)), |
| (CONST_I32 texternalsym:$addr)>; |
| |
| //===----------------------------------------------------------------------===// |
| // Additional sets of instructions. |
| //===----------------------------------------------------------------------===// |
| |
| include "WebAssemblyInstrMemory.td" |
| include "WebAssemblyInstrCall.td" |
| include "WebAssemblyInstrControl.td" |
| include "WebAssemblyInstrInteger.td" |
| include "WebAssemblyInstrConv.td" |
| include "WebAssemblyInstrFloat.td" |
| include "WebAssemblyInstrAtomics.td" |
| include "WebAssemblyInstrSIMD.td" |
