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//===--- llvm/CodeGen/WasmAddressSpaces.h -----------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Address Spaces for WebAssembly Type Handling
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WASMADDRESSSPACES_H
#define LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WASMADDRESSSPACES_H
namespace llvm {
namespace WebAssembly {
enum WasmAddressSpace : unsigned {
// Default address space, for pointers to linear memory (stack, heap, data).
WASM_ADDRESS_SPACE_DEFAULT = 0,
// A non-integral address space for pointers to named objects outside of
// linear memory: WebAssembly globals or WebAssembly locals. Loads and stores
// to these pointers are lowered to global.get / global.set or local.get /
// local.set, as appropriate.
WASM_ADDRESS_SPACE_VAR = 1,
// A non-integral address space for externref values
WASM_ADDRESS_SPACE_EXTERNREF = 10,
// A non-integral address space for funcref values
WASM_ADDRESS_SPACE_FUNCREF = 20,
};
inline bool isDefaultAddressSpace(unsigned AS) {
return AS == WASM_ADDRESS_SPACE_DEFAULT;
}
inline bool isWasmVarAddressSpace(unsigned AS) {
return AS == WASM_ADDRESS_SPACE_VAR;
}
inline bool isValidAddressSpace(unsigned AS) {
return isDefaultAddressSpace(AS) || isWasmVarAddressSpace(AS);
}
} // namespace WebAssembly
} // namespace llvm
#endif // LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WASMADDRESSSPACES_H
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