1 //===-- WebAssemblyTypeUtilities - WebAssembly Type Utilities---*- 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 /// \file 10 /// This file contains the declaration of the WebAssembly-specific type parsing 11 /// utility functions. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WEBASSEMBLYTYPEUTILITIES_H 16 #define LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WEBASSEMBLYTYPEUTILITIES_H 17 18 #include "MCTargetDesc/WebAssemblyMCTypeUtilities.h" 19 #include "WasmAddressSpaces.h" 20 #include "llvm/BinaryFormat/Wasm.h" 21 #include "llvm/CodeGenTypes/MachineValueType.h" 22 #include "llvm/IR/DerivedTypes.h" 23 #include "llvm/MC/MCSymbolWasm.h" 24 25 namespace llvm { 26 27 namespace WebAssembly { 28 29 /// Return true if this is a WebAssembly Externref Type. isWebAssemblyExternrefType(const Type * Ty)30inline bool isWebAssemblyExternrefType(const Type *Ty) { 31 return Ty->isPointerTy() && 32 Ty->getPointerAddressSpace() == 33 WebAssembly::WasmAddressSpace::WASM_ADDRESS_SPACE_EXTERNREF; 34 } 35 36 /// Return true if this is a WebAssembly Funcref Type. isWebAssemblyFuncrefType(const Type * Ty)37inline bool isWebAssemblyFuncrefType(const Type *Ty) { 38 return Ty->isPointerTy() && 39 Ty->getPointerAddressSpace() == 40 WebAssembly::WasmAddressSpace::WASM_ADDRESS_SPACE_FUNCREF; 41 } 42 43 /// Return true if this is a WebAssembly Reference Type. isWebAssemblyReferenceType(const Type * Ty)44inline bool isWebAssemblyReferenceType(const Type *Ty) { 45 return isWebAssemblyExternrefType(Ty) || isWebAssemblyFuncrefType(Ty); 46 } 47 48 /// Return true if the table represents a WebAssembly table type. isWebAssemblyTableType(const Type * Ty)49inline bool isWebAssemblyTableType(const Type *Ty) { 50 return Ty->isArrayTy() && 51 isWebAssemblyReferenceType(Ty->getArrayElementType()); 52 } 53 54 // Convert StringRef to ValType / HealType / BlockType 55 56 MVT parseMVT(StringRef Type); 57 58 // Convert a MVT into its corresponding wasm ValType. 59 wasm::ValType toValType(MVT Type); 60 61 /// Sets a Wasm Symbol Type. 62 void wasmSymbolSetType(MCSymbolWasm *Sym, const Type *GlobalVT, 63 ArrayRef<MVT> VTs); 64 65 } // end namespace WebAssembly 66 } // end namespace llvm 67 68 #endif 69