1// WebAssemblyInstrAtomics.td-WebAssembly Atomic codegen support-*- tablegen -*-
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9///
10/// \file
11/// \brief WebAssembly Atomic operand code-gen constructs.
12///
13//===----------------------------------------------------------------------===//
14
15//===----------------------------------------------------------------------===//
16// Atomic loads
17//===----------------------------------------------------------------------===//
18
19let Defs = [ARGUMENTS] in {
20// TODO: add the rest of the atomic loads
21def ATOMIC_LOAD_I32 : CLoadI32<"i32.atomic.load", 0xfe10>;
22def ATOMIC_LOAD_I64 : CLoadI64<"i64.atomic.load", 0xfe11>;
23} // Defs = [ARGUMENTS]
24
25// Select loads with no constant offset.
26let Predicates = [HasAtomics] in {
27class ALoadPatNoOffset<ValueType ty, SDNode node, I inst> :
28  Pat<(ty (node I32:$addr)), (inst 0, 0, $addr)>;
29def : ALoadPatNoOffset<i32, atomic_load, ATOMIC_LOAD_I32>;
30def : ALoadPatNoOffset<i64, atomic_load, ATOMIC_LOAD_I64>;
31
32}
33
34//===----------------------------------------------------------------------===//
35// Atomic stores
36//===----------------------------------------------------------------------===//
37
38// TODO: add atomic stores here...
39
40//===----------------------------------------------------------------------===//
41// Low-level exclusive operations
42//===----------------------------------------------------------------------===//
43
44// TODO: add exclusive operations here...
45
46// Load-exclusives.
47
48// Store-exclusives.
49
50// Store-release-exclusives.
51
52// And clear exclusive.
53
54