1 // WebAssemblyInstrRef.td - WebAssembly reference type codegen --*- tablegen -*-
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
10 /// WebAssembly reference type operand codegen constructs.
12 //===----------------------------------------------------------------------===//
14 multiclass REF_I<WebAssemblyRegClass rc, ValueType vt, string ht> {
15 defm REF_NULL_#rc : I<(outs rc:$dst), (ins),
17 [(set rc:$dst, (!cast<Intrinsic>("int_wasm_ref_null_" # ht)))],
18 "ref.null_" # ht # "$dst",
20 !cond(!eq(ht, "func") : 0xd070,
21 !eq(ht, "extern") : 0xd06f,
22 !eq(ht, "exn") : 0xd069)>,
23 Requires<[HasReferenceTypes]>;
24 defm SELECT_#rc: I<(outs rc:$dst), (ins rc:$lhs, rc:$rhs, I32:$cond),
27 (select I32:$cond, rc:$lhs, rc:$rhs))],
28 vt#".select\t$dst, $lhs, $rhs, $cond",
30 Requires<[HasReferenceTypes]>;
32 : I<(outs I32:$dst), (ins rc:$ref), (outs), (ins),
33 [(set I32:$dst, (!cast<Intrinsic>("int_wasm_ref_is_null_" # ht) rc:$ref))],
36 Requires<[HasReferenceTypes]>;
39 defm "" : REF_I<FUNCREF, funcref, "func">;
40 defm "" : REF_I<EXTERNREF, externref, "extern">;
41 defm "" : REF_I<EXNREF, exnref, "exn">;
43 foreach rc = [FUNCREF, EXTERNREF, EXNREF] in {
44 def : Pat<(select (i32 (setne I32:$cond, 0)), rc:$lhs, rc:$rhs),
45 (!cast<Instruction>("SELECT_"#rc) rc:$lhs, rc:$rhs, I32:$cond)>;
46 def : Pat<(select (i32 (seteq I32:$cond, 0)), rc:$lhs, rc:$rhs),
47 (!cast<Instruction>("SELECT_"#rc) rc:$rhs, rc:$lhs, I32:$cond)>;