4ba4816b97
This also takes the push/pop syntax another step forward, introducing stack slot numbers to make it easier to see how expressions are connected. For example, the value pushed in $push7 is popped in $pop7. And, this begins an experiment with making get_local and set_local implicit when an operation directly uses or defines a register. This greatly reduces clutter. If this experiment succeeds, it may make sense to do this for const instructions as well. And, this introduces more special code for ARGUMENTS; hopefully this code will soon be obviated by proper support for live-in virtual registers. llvm-svn: 253465
139 lines
6.0 KiB
TableGen
139 lines
6.0 KiB
TableGen
// WebAssemblyInstrInfo.td-Describe the WebAssembly Instructions-*- tablegen -*-
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief WebAssembly Instruction definitions.
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///
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// WebAssembly Instruction Predicate Definitions.
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//===----------------------------------------------------------------------===//
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def HasAddr32 : Predicate<"!Subtarget->hasAddr64()">;
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def HasAddr64 : Predicate<"Subtarget->hasAddr64()">;
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def HasSIMD128 : Predicate<"Subtarget->hasSIMD128()">,
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AssemblerPredicate<"FeatureSIMD128", "simd128">;
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//===----------------------------------------------------------------------===//
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// WebAssembly-specific DAG Node Types.
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//===----------------------------------------------------------------------===//
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def SDT_WebAssemblyCallSeqStart : SDCallSeqStart<[SDTCisVT<0, iPTR>]>;
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def SDT_WebAssemblyCallSeqEnd :
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SDCallSeqEnd<[SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
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def SDT_WebAssemblyCall0 : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
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def SDT_WebAssemblyCall1 : SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>;
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def SDT_WebAssemblySwitch : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
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def SDT_WebAssemblyArgument : SDTypeProfile<1, 1, [SDTCisVT<1, i32>]>;
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def SDT_WebAssemblyReturn : SDTypeProfile<0, -1, []>;
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def SDT_WebAssemblyWrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>,
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SDTCisPtrTy<0>]>;
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//===----------------------------------------------------------------------===//
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// WebAssembly-specific DAG Nodes.
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//===----------------------------------------------------------------------===//
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def WebAssemblycallseq_start :
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SDNode<"ISD::CALLSEQ_START", SDT_WebAssemblyCallSeqStart,
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[SDNPHasChain, SDNPOutGlue]>;
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def WebAssemblycallseq_end :
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SDNode<"ISD::CALLSEQ_END", SDT_WebAssemblyCallSeqEnd,
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[SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
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def WebAssemblycall0 : SDNode<"WebAssemblyISD::CALL0",
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SDT_WebAssemblyCall0,
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[SDNPHasChain, SDNPVariadic]>;
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def WebAssemblycall1 : SDNode<"WebAssemblyISD::CALL1",
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SDT_WebAssemblyCall1,
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[SDNPHasChain, SDNPVariadic]>;
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def WebAssemblyswitch : SDNode<"WebAssemblyISD::SWITCH",
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SDT_WebAssemblySwitch,
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[SDNPHasChain, SDNPVariadic]>;
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def WebAssemblyargument : SDNode<"WebAssemblyISD::ARGUMENT",
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SDT_WebAssemblyArgument>;
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def WebAssemblyreturn : SDNode<"WebAssemblyISD::RETURN",
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SDT_WebAssemblyReturn, [SDNPHasChain]>;
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def WebAssemblywrapper : SDNode<"WebAssemblyISD::Wrapper",
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SDT_WebAssemblyWrapper>;
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//===----------------------------------------------------------------------===//
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// WebAssembly-specific Operands.
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//===----------------------------------------------------------------------===//
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def bb_op : Operand<OtherVT>;
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def tjumptable_op : Operand<iPTR>;
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def global : Operand<iPTR>;
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//===----------------------------------------------------------------------===//
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// WebAssembly Instruction Format Definitions.
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//===----------------------------------------------------------------------===//
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include "WebAssemblyInstrFormats.td"
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//===----------------------------------------------------------------------===//
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// Additional instructions.
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//===----------------------------------------------------------------------===//
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multiclass ARGUMENT<WebAssemblyRegClass vt> {
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def ARGUMENT_#vt : I<(outs vt:$res), (ins i32imm:$argno),
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[(set vt:$res, (WebAssemblyargument timm:$argno))]>;
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}
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defm : ARGUMENT<I32>;
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defm : ARGUMENT<I64>;
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defm : ARGUMENT<F32>;
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defm : ARGUMENT<F64>;
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// get_local and set_local are not generated by instruction selection; they
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// are implied by virtual register uses and defs in most contexts. However,
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// they are explicitly emitted for special purposes.
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multiclass LOCAL<WebAssemblyRegClass vt> {
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def GET_LOCAL_#vt : I<(outs vt:$res), (ins i32imm:$regno), [],
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"get_local\t$res, $regno">;
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// TODO: set_local returns its operand value
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def SET_LOCAL_#vt : I<(outs), (ins i32imm:$regno, vt:$src), [],
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"set_local\t$regno, $src">;
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}
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defm : LOCAL<I32>;
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defm : LOCAL<I64>;
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defm : LOCAL<F32>;
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defm : LOCAL<F64>;
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def CONST_I32 : I<(outs I32:$res), (ins i32imm:$imm),
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[(set I32:$res, imm:$imm)],
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"i32.const\t$res, $imm">;
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def CONST_I64 : I<(outs I64:$res), (ins i64imm:$imm),
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[(set I64:$res, imm:$imm)],
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"i64.const\t$res, $imm">;
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def CONST_F32 : I<(outs F32:$res), (ins f32imm:$imm),
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[(set F32:$res, fpimm:$imm)],
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"f32.const\t$res, $imm">;
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def CONST_F64 : I<(outs F64:$res), (ins f64imm:$imm),
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[(set F64:$res, fpimm:$imm)],
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"f64.const\t$res, $imm">;
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def : Pat<(i32 (WebAssemblywrapper tglobaladdr :$dst)),
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(CONST_I32 tglobaladdr :$dst)>;
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def JUMP_TABLE : I<(outs I32:$dst), (ins tjumptable_op:$addr),
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[(set I32:$dst, (WebAssemblywrapper tjumptable:$addr))],
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"jump_table\t$dst, $addr">;
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//===----------------------------------------------------------------------===//
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// Additional sets of instructions.
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//===----------------------------------------------------------------------===//
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include "WebAssemblyInstrMemory.td"
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include "WebAssemblyInstrCall.td"
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include "WebAssemblyInstrControl.td"
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include "WebAssemblyInstrInteger.td"
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include "WebAssemblyInstrFloat.td"
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include "WebAssemblyInstrConv.td"
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include "WebAssemblyInstrAtomics.td"
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include "WebAssemblyInstrSIMD.td"
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