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llvm-mirror/lib/Target/WebAssembly/WebAssemblyInstrTable.td
Paulo Matos e8be0ee828 [WebAssembly] Implementation of global.get/set for reftypes in LLVM IR
Reland of 31859f896.

This change implements new DAG notes GLOBAL_GET/GLOBAL_SET, and
lowering methods for load and stores of reference types from IR
globals. Once the lowering creates the new nodes, tablegen pattern
matches those and converts them to Wasm global.get/set.

Reviewed By: tlively

Differential Revision: https://reviews.llvm.org/D104797
2021-07-22 22:07:24 +02:00

77 lines
3.2 KiB
TableGen

// WebAssemblyInstrTable.td - WebAssembly Table 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 Table operand code-gen constructs.
/// Instructions that handle tables
//===----------------------------------------------------------------------===//
multiclass TABLE<WebAssemblyRegClass rt> {
let mayLoad = 1 in
defm TABLE_GET_#rt : I<(outs rt:$res), (ins table32_op:$table, I32:$i),
(outs), (ins table32_op:$table),
[],
"table.get\t$res, $table, $i",
"table.get\t$table",
0x25>;
let mayStore = 1 in
defm TABLE_SET_#rt : I<(outs), (ins table32_op:$table, I32:$i, rt:$val),
(outs), (ins table32_op:$table),
[],
"table.set\t$table, $i, $val",
"table.set\t$table",
0x26>;
defm TABLE_GROW_#rt : I<(outs I32:$sz), (ins table32_op:$table, rt:$val, I32:$n),
(outs), (ins table32_op:$table),
[],
"table.grow\t$sz, $table, $val, $n",
"table.grow\t$table",
0xfc0f>;
defm TABLE_FILL_#rt : I<(outs), (ins table32_op:$table, I32:$i, rt:$val, I32:$n),
(outs), (ins table32_op:$table),
[],
"table.fill\t$table, $i, $val, $n",
"table.fill\t$table",
0xfc11>;
}
defm "" : TABLE<FUNCREF>, Requires<[HasReferenceTypes]>;
defm "" : TABLE<EXTERNREF>, Requires<[HasReferenceTypes]>;
def wasm_table_set_t : SDTypeProfile<0, 3, []>;
def wasm_table_set : SDNode<"WebAssemblyISD::TABLE_SET", wasm_table_set_t,
[SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
def : Pat<(wasm_table_set i32:$table, i32:$idx, funcref:$r),
(TABLE_SET_FUNCREF i32:$table, i32:$idx, funcref:$r)>,
Requires<[HasReferenceTypes]>;
def : Pat<(wasm_table_set i32:$table, i32:$idx, externref:$r),
(TABLE_SET_EXTERNREF i32:$table, i32:$idx, externref:$r)>,
Requires<[HasReferenceTypes]>;
defm TABLE_SIZE : I<(outs I32:$sz), (ins table32_op:$table),
(outs), (ins table32_op:$table),
[],
"table.size\t$sz, $table",
"table.size\t$table",
0xfc10>,
Requires<[HasReferenceTypes]>;
defm TABLE_COPY : I<(outs), (ins table32_op:$table1, table32_op:$table2, I32:$d, I32:$s, I32:$n),
(outs), (ins table32_op:$table1, table32_op:$table2),
[],
"table.copy\t$table1, $table2, $d, $s, $n",
"table.copy\t$table1, $table2",
0xfc0e>,
Requires<[HasReferenceTypes]>;