d5b7a4e2e8
Summary: Adds the new v8x16.swizzle SIMD instruction as specified at https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#swizzling-using-variable-indices. In addition to adding swizzles as a candidate lowering in LowerBUILD_VECTOR, also rewrites and simplifies the lowering to minimize the number of replace_lanes necessary rather than trying to minimize code size. This leads to more uses of v128.const instead of splats, which is expected to increase performance. The new code will be easier to tune once V8 implements all the vector construction operations, and it will also be easier to add new candidate instructions in the future if necessary. Reviewers: aheejin, dschuff Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D68527 llvm-svn: 374188
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
//- WebAssemblyISD.def - WebAssembly ISD ---------------------------*- C++ -*-//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file describes the various WebAssembly ISD node types.
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///
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//===----------------------------------------------------------------------===//
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// NOTE: NO INCLUDE GUARD DESIRED!
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HANDLE_NODETYPE(CALL1)
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HANDLE_NODETYPE(CALL0)
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HANDLE_NODETYPE(RET_CALL)
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HANDLE_NODETYPE(RETURN)
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HANDLE_NODETYPE(ARGUMENT)
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// A wrapper node for TargetExternalSymbol, TargetGlobalAddress, and MCSymbol
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HANDLE_NODETYPE(Wrapper)
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// A special wapper used in PIC code for __memory_base/__table_base relcative
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// access.
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HANDLE_NODETYPE(WrapperPIC)
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HANDLE_NODETYPE(BR_IF)
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HANDLE_NODETYPE(BR_TABLE)
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HANDLE_NODETYPE(SHUFFLE)
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HANDLE_NODETYPE(SWIZZLE)
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HANDLE_NODETYPE(VEC_SHL)
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HANDLE_NODETYPE(VEC_SHR_S)
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HANDLE_NODETYPE(VEC_SHR_U)
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HANDLE_NODETYPE(LOAD_SPLAT)
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HANDLE_NODETYPE(THROW)
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HANDLE_NODETYPE(MEMORY_COPY)
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HANDLE_NODETYPE(MEMORY_FILL)
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// add memory opcodes starting at ISD::FIRST_TARGET_MEMORY_OPCODE here...
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