| //==- WebAssemblyMCTargetDesc.h - WebAssembly Target Descriptions -*- C++ -*-=// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// This file provides WebAssembly-specific target descriptions. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYMCTARGETDESC_H |
| #define LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYMCTARGETDESC_H |
| |
| #include "llvm/BinaryFormat/Wasm.h" |
| #include "llvm/MC/MCInstrDesc.h" |
| #include "llvm/Support/DataTypes.h" |
| #include <memory> |
| |
| namespace llvm { |
| |
| class MCAsmBackend; |
| class MCCodeEmitter; |
| class MCContext; |
| class MCInstrInfo; |
| class MCObjectTargetWriter; |
| class MCSubtargetInfo; |
| class MVT; |
| class Target; |
| class Triple; |
| class raw_pwrite_stream; |
| |
| Target &getTheWebAssemblyTarget32(); |
| Target &getTheWebAssemblyTarget64(); |
| |
| MCCodeEmitter *createWebAssemblyMCCodeEmitter(const MCInstrInfo &MCII); |
| |
| MCAsmBackend *createWebAssemblyAsmBackend(const Triple &TT); |
| |
| std::unique_ptr<MCObjectTargetWriter> |
| createWebAssemblyWasmObjectWriter(bool Is64Bit); |
| |
| namespace WebAssembly { |
| enum OperandType { |
| /// Basic block label in a branch construct. |
| OPERAND_BASIC_BLOCK = MCOI::OPERAND_FIRST_TARGET, |
| /// Local index. |
| OPERAND_LOCAL, |
| /// Global index. |
| OPERAND_GLOBAL, |
| /// 32-bit integer immediates. |
| OPERAND_I32IMM, |
| /// 64-bit integer immediates. |
| OPERAND_I64IMM, |
| /// 32-bit floating-point immediates. |
| OPERAND_F32IMM, |
| /// 64-bit floating-point immediates. |
| OPERAND_F64IMM, |
| /// 32-bit unsigned function indices. |
| OPERAND_FUNCTION32, |
| /// 32-bit unsigned memory offsets. |
| OPERAND_OFFSET32, |
| /// p2align immediate for load and store address alignment. |
| OPERAND_P2ALIGN, |
| /// signature immediate for block/loop. |
| OPERAND_SIGNATURE, |
| /// type signature immediate for call_indirect. |
| OPERAND_TYPEINDEX, |
| }; |
| } // end namespace WebAssembly |
| |
| namespace WebAssemblyII { |
| enum { |
| // For variadic instructions, this flag indicates whether an operand |
| // in the variable_ops range is an immediate value. |
| VariableOpIsImmediate = (1 << 0), |
| // For immediate values in the variable_ops range, this flag indicates |
| // whether the value represents a control-flow label. |
| VariableOpImmediateIsLabel = (1 << 1) |
| }; |
| } // end namespace WebAssemblyII |
| |
| } // end namespace llvm |
| |
| // Defines symbolic names for WebAssembly registers. This defines a mapping from |
| // register name to register number. |
| // |
| #define GET_REGINFO_ENUM |
| #include "WebAssemblyGenRegisterInfo.inc" |
| |
| // Defines symbolic names for the WebAssembly instructions. |
| // |
| #define GET_INSTRINFO_ENUM |
| #include "WebAssemblyGenInstrInfo.inc" |
| |
| #define GET_SUBTARGETINFO_ENUM |
| #include "WebAssemblyGenSubtargetInfo.inc" |
| |
| namespace llvm { |
| namespace WebAssembly { |
| |
| /// Return the default p2align value for a load or store with the given opcode. |
| inline unsigned GetDefaultP2Align(unsigned Opcode) { |
| switch (Opcode) { |
| case WebAssembly::LOAD8_S_I32: |
| case WebAssembly::LOAD8_S_I32_S: |
| case WebAssembly::LOAD8_U_I32: |
| case WebAssembly::LOAD8_U_I32_S: |
| case WebAssembly::LOAD8_S_I64: |
| case WebAssembly::LOAD8_S_I64_S: |
| case WebAssembly::LOAD8_U_I64: |
| case WebAssembly::LOAD8_U_I64_S: |
| case WebAssembly::ATOMIC_LOAD8_U_I32: |
| case WebAssembly::ATOMIC_LOAD8_U_I32_S: |
| case WebAssembly::ATOMIC_LOAD8_U_I64: |
| case WebAssembly::ATOMIC_LOAD8_U_I64_S: |
| case WebAssembly::STORE8_I32: |
| case WebAssembly::STORE8_I32_S: |
| case WebAssembly::STORE8_I64: |
| case WebAssembly::STORE8_I64_S: |
| case WebAssembly::ATOMIC_STORE8_I32: |
| case WebAssembly::ATOMIC_STORE8_I32_S: |
| case WebAssembly::ATOMIC_STORE8_I64: |
| case WebAssembly::ATOMIC_STORE8_I64_S: |
| case WebAssembly::ATOMIC_RMW8_U_ADD_I32: |
| case WebAssembly::ATOMIC_RMW8_U_ADD_I32_S: |
| case WebAssembly::ATOMIC_RMW8_U_ADD_I64: |
| case WebAssembly::ATOMIC_RMW8_U_ADD_I64_S: |
| case WebAssembly::ATOMIC_RMW8_U_SUB_I32: |
| case WebAssembly::ATOMIC_RMW8_U_SUB_I32_S: |
| case WebAssembly::ATOMIC_RMW8_U_SUB_I64: |
| case WebAssembly::ATOMIC_RMW8_U_SUB_I64_S: |
| case WebAssembly::ATOMIC_RMW8_U_AND_I32: |
| case WebAssembly::ATOMIC_RMW8_U_AND_I32_S: |
| case WebAssembly::ATOMIC_RMW8_U_AND_I64: |
| case WebAssembly::ATOMIC_RMW8_U_AND_I64_S: |
| case WebAssembly::ATOMIC_RMW8_U_OR_I32: |
| case WebAssembly::ATOMIC_RMW8_U_OR_I32_S: |
| case WebAssembly::ATOMIC_RMW8_U_OR_I64: |
| case WebAssembly::ATOMIC_RMW8_U_OR_I64_S: |
| case WebAssembly::ATOMIC_RMW8_U_XOR_I32: |
| case WebAssembly::ATOMIC_RMW8_U_XOR_I32_S: |
| case WebAssembly::ATOMIC_RMW8_U_XOR_I64: |
| case WebAssembly::ATOMIC_RMW8_U_XOR_I64_S: |
| case WebAssembly::ATOMIC_RMW8_U_XCHG_I32: |
| case WebAssembly::ATOMIC_RMW8_U_XCHG_I32_S: |
| case WebAssembly::ATOMIC_RMW8_U_XCHG_I64: |
| case WebAssembly::ATOMIC_RMW8_U_XCHG_I64_S: |
| return 0; |
| case WebAssembly::LOAD16_S_I32: |
| case WebAssembly::LOAD16_S_I32_S: |
| case WebAssembly::LOAD16_U_I32: |
| case WebAssembly::LOAD16_U_I32_S: |
| case WebAssembly::LOAD16_S_I64: |
| case WebAssembly::LOAD16_S_I64_S: |
| case WebAssembly::LOAD16_U_I64: |
| case WebAssembly::LOAD16_U_I64_S: |
| case WebAssembly::ATOMIC_LOAD16_U_I32: |
| case WebAssembly::ATOMIC_LOAD16_U_I32_S: |
| case WebAssembly::ATOMIC_LOAD16_U_I64: |
| case WebAssembly::ATOMIC_LOAD16_U_I64_S: |
| case WebAssembly::STORE16_I32: |
| case WebAssembly::STORE16_I32_S: |
| case WebAssembly::STORE16_I64: |
| case WebAssembly::STORE16_I64_S: |
| case WebAssembly::ATOMIC_STORE16_I32: |
| case WebAssembly::ATOMIC_STORE16_I32_S: |
| case WebAssembly::ATOMIC_STORE16_I64: |
| case WebAssembly::ATOMIC_STORE16_I64_S: |
| case WebAssembly::ATOMIC_RMW16_U_ADD_I32: |
| case WebAssembly::ATOMIC_RMW16_U_ADD_I32_S: |
| case WebAssembly::ATOMIC_RMW16_U_ADD_I64: |
| case WebAssembly::ATOMIC_RMW16_U_ADD_I64_S: |
| case WebAssembly::ATOMIC_RMW16_U_SUB_I32: |
| case WebAssembly::ATOMIC_RMW16_U_SUB_I32_S: |
| case WebAssembly::ATOMIC_RMW16_U_SUB_I64: |
| case WebAssembly::ATOMIC_RMW16_U_SUB_I64_S: |
| case WebAssembly::ATOMIC_RMW16_U_AND_I32: |
| case WebAssembly::ATOMIC_RMW16_U_AND_I32_S: |
| case WebAssembly::ATOMIC_RMW16_U_AND_I64: |
| case WebAssembly::ATOMIC_RMW16_U_AND_I64_S: |
| case WebAssembly::ATOMIC_RMW16_U_OR_I32: |
| case WebAssembly::ATOMIC_RMW16_U_OR_I32_S: |
| case WebAssembly::ATOMIC_RMW16_U_OR_I64: |
| case WebAssembly::ATOMIC_RMW16_U_OR_I64_S: |
| case WebAssembly::ATOMIC_RMW16_U_XOR_I32: |
| case WebAssembly::ATOMIC_RMW16_U_XOR_I32_S: |
| case WebAssembly::ATOMIC_RMW16_U_XOR_I64: |
| case WebAssembly::ATOMIC_RMW16_U_XOR_I64_S: |
| case WebAssembly::ATOMIC_RMW16_U_XCHG_I32: |
| case WebAssembly::ATOMIC_RMW16_U_XCHG_I32_S: |
| case WebAssembly::ATOMIC_RMW16_U_XCHG_I64: |
| case WebAssembly::ATOMIC_RMW16_U_XCHG_I64_S: |
| return 1; |
| case WebAssembly::LOAD_I32: |
| case WebAssembly::LOAD_I32_S: |
| case WebAssembly::LOAD_F32: |
| case WebAssembly::LOAD_F32_S: |
| case WebAssembly::STORE_I32: |
| case WebAssembly::STORE_I32_S: |
| case WebAssembly::STORE_F32: |
| case WebAssembly::STORE_F32_S: |
| case WebAssembly::LOAD32_S_I64: |
| case WebAssembly::LOAD32_S_I64_S: |
| case WebAssembly::LOAD32_U_I64: |
| case WebAssembly::LOAD32_U_I64_S: |
| case WebAssembly::STORE32_I64: |
| case WebAssembly::STORE32_I64_S: |
| case WebAssembly::ATOMIC_LOAD_I32: |
| case WebAssembly::ATOMIC_LOAD_I32_S: |
| case WebAssembly::ATOMIC_LOAD32_U_I64: |
| case WebAssembly::ATOMIC_LOAD32_U_I64_S: |
| case WebAssembly::ATOMIC_STORE_I32: |
| case WebAssembly::ATOMIC_STORE_I32_S: |
| case WebAssembly::ATOMIC_STORE32_I64: |
| case WebAssembly::ATOMIC_STORE32_I64_S: |
| case WebAssembly::ATOMIC_RMW_ADD_I32: |
| case WebAssembly::ATOMIC_RMW_ADD_I32_S: |
| case WebAssembly::ATOMIC_RMW32_U_ADD_I64: |
| case WebAssembly::ATOMIC_RMW32_U_ADD_I64_S: |
| case WebAssembly::ATOMIC_RMW_SUB_I32: |
| case WebAssembly::ATOMIC_RMW_SUB_I32_S: |
| case WebAssembly::ATOMIC_RMW32_U_SUB_I64: |
| case WebAssembly::ATOMIC_RMW32_U_SUB_I64_S: |
| case WebAssembly::ATOMIC_RMW_AND_I32: |
| case WebAssembly::ATOMIC_RMW_AND_I32_S: |
| case WebAssembly::ATOMIC_RMW32_U_AND_I64: |
| case WebAssembly::ATOMIC_RMW32_U_AND_I64_S: |
| case WebAssembly::ATOMIC_RMW_OR_I32: |
| case WebAssembly::ATOMIC_RMW_OR_I32_S: |
| case WebAssembly::ATOMIC_RMW32_U_OR_I64: |
| case WebAssembly::ATOMIC_RMW32_U_OR_I64_S: |
| case WebAssembly::ATOMIC_RMW_XOR_I32: |
| case WebAssembly::ATOMIC_RMW_XOR_I32_S: |
| case WebAssembly::ATOMIC_RMW32_U_XOR_I64: |
| case WebAssembly::ATOMIC_RMW32_U_XOR_I64_S: |
| case WebAssembly::ATOMIC_RMW_XCHG_I32: |
| case WebAssembly::ATOMIC_RMW_XCHG_I32_S: |
| case WebAssembly::ATOMIC_RMW32_U_XCHG_I64: |
| case WebAssembly::ATOMIC_RMW32_U_XCHG_I64_S: |
| return 2; |
| case WebAssembly::LOAD_I64: |
| case WebAssembly::LOAD_I64_S: |
| case WebAssembly::LOAD_F64: |
| case WebAssembly::LOAD_F64_S: |
| case WebAssembly::STORE_I64: |
| case WebAssembly::STORE_I64_S: |
| case WebAssembly::STORE_F64: |
| case WebAssembly::STORE_F64_S: |
| case WebAssembly::ATOMIC_LOAD_I64: |
| case WebAssembly::ATOMIC_LOAD_I64_S: |
| case WebAssembly::ATOMIC_STORE_I64: |
| case WebAssembly::ATOMIC_STORE_I64_S: |
| case WebAssembly::ATOMIC_RMW_ADD_I64: |
| case WebAssembly::ATOMIC_RMW_ADD_I64_S: |
| case WebAssembly::ATOMIC_RMW_SUB_I64: |
| case WebAssembly::ATOMIC_RMW_SUB_I64_S: |
| case WebAssembly::ATOMIC_RMW_AND_I64: |
| case WebAssembly::ATOMIC_RMW_AND_I64_S: |
| case WebAssembly::ATOMIC_RMW_OR_I64: |
| case WebAssembly::ATOMIC_RMW_OR_I64_S: |
| case WebAssembly::ATOMIC_RMW_XOR_I64: |
| case WebAssembly::ATOMIC_RMW_XOR_I64_S: |
| case WebAssembly::ATOMIC_RMW_XCHG_I64: |
| case WebAssembly::ATOMIC_RMW_XCHG_I64_S: |
| return 3; |
| default: |
| llvm_unreachable("Only loads and stores have p2align values"); |
| } |
| } |
| |
| /// The operand number of the load or store address in load/store instructions. |
| static const unsigned LoadAddressOperandNo = 3; |
| static const unsigned StoreAddressOperandNo = 2; |
| |
| /// The operand number of the load or store p2align in load/store instructions. |
| static const unsigned LoadP2AlignOperandNo = 1; |
| static const unsigned StoreP2AlignOperandNo = 0; |
| |
| /// This is used to indicate block signatures. |
| enum class ExprType : unsigned { |
| Void = 0x40, |
| I32 = 0x7F, |
| I64 = 0x7E, |
| F32 = 0x7D, |
| F64 = 0x7C, |
| I8x16 = 0x7B, |
| I16x8 = 0x7A, |
| I32x4 = 0x79, |
| F32x4 = 0x78, |
| B8x16 = 0x77, |
| B16x8 = 0x76, |
| B32x4 = 0x75, |
| ExceptRef = 0x68 |
| }; |
| |
| /// Instruction opcodes emitted via means other than CodeGen. |
| static const unsigned Nop = 0x01; |
| static const unsigned End = 0x0b; |
| |
| wasm::ValType toValType(const MVT &Ty); |
| |
| } // end namespace WebAssembly |
| } // end namespace llvm |
| |
| #endif |