1//===--- llvm/CodeGen/WasmAddressSpaces.h -----------------------*- C++ -*-===//
2//
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
6//
7//===----------------------------------------------------------------------===//
8//
9// Address Spaces for WebAssembly Type Handling
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WASMADDRESSSPACES_H
14#define LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WASMADDRESSSPACES_H
15
16namespace llvm {
17
18namespace WebAssembly {
19
20enum WasmAddressSpace : unsigned {
21 // Default address space, for pointers to linear memory (stack, heap, data).
22 WASM_ADDRESS_SPACE_DEFAULT = 0,
23 // A non-integral address space for pointers to named objects outside of
24 // linear memory: WebAssembly globals or WebAssembly locals. Loads and stores
25 // to these pointers are lowered to global.get / global.set or local.get /
26 // local.set, as appropriate.
27 WASM_ADDRESS_SPACE_VAR = 1,
28 // A non-integral address space for externref values
29 WASM_ADDRESS_SPACE_EXTERNREF = 10,
30 // A non-integral address space for funcref values
31 WASM_ADDRESS_SPACE_FUNCREF = 20,
32};
33
34inline bool isDefaultAddressSpace(unsigned AS) {
35 return AS == WASM_ADDRESS_SPACE_DEFAULT;
36}
37inline bool isWasmVarAddressSpace(unsigned AS) {
38 return AS == WASM_ADDRESS_SPACE_VAR;
39}
40inline bool isValidAddressSpace(unsigned AS) {
41 return isDefaultAddressSpace(AS) || isWasmVarAddressSpace(AS);
42}
43
44} // namespace WebAssembly
45
46} // namespace llvm
47
48#endif // LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WASMADDRESSSPACES_H
49