| // WebAssemblyInstrBulkMemory.td - bulk memory codegen support --*- tablegen -*- |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// WebAssembly bulk memory codegen constructs. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| // Instruction requiring HasBulkMemory and the bulk memory prefix byte |
| multiclass BULK_I<dag oops_r, dag iops_r, dag oops_s, dag iops_s, |
| list<dag> pattern_r, string asmstr_r = "", |
| string asmstr_s = "", bits<32> simdop = -1> { |
| defm "" : I<oops_r, iops_r, oops_s, iops_s, pattern_r, asmstr_r, asmstr_s, |
| !or(0xfc00, !and(0xff, simdop))>, |
| Requires<[HasBulkMemory]>; |
| } |
| |
| // Bespoke types and nodes for bulk memory ops |
| def wasm_memcpy_t : SDTypeProfile<0, 3, |
| [SDTCisPtrTy<0>, SDTCisPtrTy<1>, SDTCisInt<2>] |
| >; |
| def wasm_memcpy : SDNode<"WebAssemblyISD::MEMORY_COPY", wasm_memcpy_t, |
| [SDNPHasChain, SDNPMayLoad, SDNPMayStore]>; |
| |
| //===----------------------------------------------------------------------===// |
| // memory.copy |
| //===----------------------------------------------------------------------===// |
| |
| let mayLoad = 1, mayStore = 1 in |
| defm MEMORY_COPY : BULK_I<(outs), (ins I32:$dst, I32:$src, I32:$len), |
| (outs), (ins), |
| [(wasm_memcpy I32:$dst, I32:$src, I32:$len)], |
| "memory.copy\t$dst, $src, $len", |
| "memory.copy", 0x0a>; |