82f92e35c6
This patch adds TargetStackID::WasmLocal. This stack holds locations of values that are only addressable by name -- not via a pointer to memory. For the WebAssembly target, these objects are lowered to WebAssembly local variables, which are managed by the WebAssembly run-time and are not addressable by linear memory. For the WebAssembly target IR indicates that an AllocaInst should be put on TargetStackID::WasmLocal by putting it in the non-integral address space WASM_ADDRESS_SPACE_WASM_VAR, with value 1. SROA will mostly lift these allocations to SSA locals, but any alloca that reaches instruction selection (usually in non-optimized builds) will be assigned the new TargetStackID there. Loads and stores to those values are transformed to new WebAssemblyISD::LOCAL_GET / WebAssemblyISD::LOCAL_SET nodes, which then lower to the type-specific LOCAL_GET_I32 etc instructions via tablegen patterns. Differential Revision: https://reviews.llvm.org/D101140
51 lines
1.6 KiB
C++
51 lines
1.6 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(CALL)
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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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HANDLE_NODETYPE(LOCAL_GET)
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HANDLE_NODETYPE(LOCAL_SET)
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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 relative
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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(EXTEND_LOW_S)
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HANDLE_NODETYPE(EXTEND_LOW_U)
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HANDLE_NODETYPE(EXTEND_HIGH_S)
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HANDLE_NODETYPE(EXTEND_HIGH_U)
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HANDLE_NODETYPE(CONVERT_LOW_S)
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HANDLE_NODETYPE(CONVERT_LOW_U)
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HANDLE_NODETYPE(TRUNC_SAT_ZERO_S)
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HANDLE_NODETYPE(TRUNC_SAT_ZERO_U)
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HANDLE_NODETYPE(THROW)
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HANDLE_NODETYPE(CATCH)
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HANDLE_NODETYPE(MEMORY_COPY)
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HANDLE_NODETYPE(MEMORY_FILL)
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// Memory intrinsics
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HANDLE_MEM_NODETYPE(LOAD_SPLAT)
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HANDLE_MEM_NODETYPE(GLOBAL_GET)
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HANDLE_MEM_NODETYPE(GLOBAL_SET)
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