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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ *
+ * Copyright 2015 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef wasm_binary_h
+#define wasm_binary_h
+
+#include "builtin/SIMD.h"
+
+namespace js {
+namespace wasm {
+
+static const uint32_t MagicNumber = 0x6d736100; // "\0asm"
+static const uint32_t EncodingVersion = 0x01;
+
+// 0xd is equivalent to 0x1 modulo unreachability validation rules, so to aid
+// transition of toolchain, accept both for a short period of time.
+static const uint32_t PrevEncodingVersion = 0x0d;
+
+enum class SectionId {
+ UserDefined = 0,
+ Type = 1,
+ Import = 2,
+ Function = 3,
+ Table = 4,
+ Memory = 5,
+ Global = 6,
+ Export = 7,
+ Start = 8,
+ Elem = 9,
+ Code = 10,
+ Data = 11
+};
+
+static const char NameSectionName[] = "name";
+
+enum class TypeCode
+{
+ I32 = 0x7f, // SLEB128(-0x01)
+ I64 = 0x7e, // SLEB128(-0x02)
+ F32 = 0x7d, // SLEB128(-0x03)
+ F64 = 0x7c, // SLEB128(-0x04)
+
+ // Only emitted internally for asm.js, likely to get collapsed into I128
+ I8x16 = 0x7b,
+ I16x8 = 0x7a,
+ I32x4 = 0x79,
+ F32x4 = 0x78,
+ B8x16 = 0x77,
+ B16x8 = 0x76,
+ B32x4 = 0x75,
+
+ // A function pointer with any signature
+ AnyFunc = 0x70, // SLEB128(-0x10)
+
+ // Type constructor for function types
+ Func = 0x60, // SLEB128(-0x20)
+
+ // Special code representing the block signature ()->()
+ BlockVoid = 0x40, // SLEB128(-0x40)
+
+ Limit = 0x80
+};
+
+enum class ValType
+{
+ I32 = uint8_t(TypeCode::I32),
+ I64 = uint8_t(TypeCode::I64),
+ F32 = uint8_t(TypeCode::F32),
+ F64 = uint8_t(TypeCode::F64),
+
+ // ------------------------------------------------------------------------
+ // The rest of these types are currently only emitted internally when
+ // compiling asm.js and are rejected by wasm validation.
+
+ I8x16 = uint8_t(TypeCode::I8x16),
+ I16x8 = uint8_t(TypeCode::I16x8),
+ I32x4 = uint8_t(TypeCode::I32x4),
+ F32x4 = uint8_t(TypeCode::F32x4),
+ B8x16 = uint8_t(TypeCode::B8x16),
+ B16x8 = uint8_t(TypeCode::B16x8),
+ B32x4 = uint8_t(TypeCode::B32x4)
+};
+
+typedef Vector<ValType, 8, SystemAllocPolicy> ValTypeVector;
+
+enum class DefinitionKind
+{
+ Function = 0x00,
+ Table = 0x01,
+ Memory = 0x02,
+ Global = 0x03
+};
+
+enum class GlobalTypeImmediate
+{
+ IsMutable = 0x1,
+ AllowedMask = 0x1
+};
+
+enum class MemoryTableFlags
+{
+ Default = 0x0
+};
+
+enum class Op
+{
+ // Control flow operators
+ Unreachable = 0x00,
+ Nop = 0x01,
+ Block = 0x02,
+ Loop = 0x03,
+ If = 0x04,
+ Else = 0x05,
+ End = 0x0b,
+ Br = 0x0c,
+ BrIf = 0x0d,
+ BrTable = 0x0e,
+ Return = 0x0f,
+
+ // Call operators
+ Call = 0x10,
+ CallIndirect = 0x11,
+
+ // Parametric operators
+ Drop = 0x1a,
+ Select = 0x1b,
+
+ // Variable access
+ GetLocal = 0x20,
+ SetLocal = 0x21,
+ TeeLocal = 0x22,
+ GetGlobal = 0x23,
+ SetGlobal = 0x24,
+
+ // Memory-related operators
+ I32Load = 0x28,
+ I64Load = 0x29,
+ F32Load = 0x2a,
+ F64Load = 0x2b,
+ I32Load8S = 0x2c,
+ I32Load8U = 0x2d,
+ I32Load16S = 0x2e,
+ I32Load16U = 0x2f,
+ I64Load8S = 0x30,
+ I64Load8U = 0x31,
+ I64Load16S = 0x32,
+ I64Load16U = 0x33,
+ I64Load32S = 0x34,
+ I64Load32U = 0x35,
+ I32Store = 0x36,
+ I64Store = 0x37,
+ F32Store = 0x38,
+ F64Store = 0x39,
+ I32Store8 = 0x3a,
+ I32Store16 = 0x3b,
+ I64Store8 = 0x3c,
+ I64Store16 = 0x3d,
+ I64Store32 = 0x3e,
+ CurrentMemory = 0x3f,
+ GrowMemory = 0x40,
+
+ // Constants
+ I32Const = 0x41,
+ I64Const = 0x42,
+ F32Const = 0x43,
+ F64Const = 0x44,
+
+ // Comparison operators
+ I32Eqz = 0x45,
+ I32Eq = 0x46,
+ I32Ne = 0x47,
+ I32LtS = 0x48,
+ I32LtU = 0x49,
+ I32GtS = 0x4a,
+ I32GtU = 0x4b,
+ I32LeS = 0x4c,
+ I32LeU = 0x4d,
+ I32GeS = 0x4e,
+ I32GeU = 0x4f,
+ I64Eqz = 0x50,
+ I64Eq = 0x51,
+ I64Ne = 0x52,
+ I64LtS = 0x53,
+ I64LtU = 0x54,
+ I64GtS = 0x55,
+ I64GtU = 0x56,
+ I64LeS = 0x57,
+ I64LeU = 0x58,
+ I64GeS = 0x59,
+ I64GeU = 0x5a,
+ F32Eq = 0x5b,
+ F32Ne = 0x5c,
+ F32Lt = 0x5d,
+ F32Gt = 0x5e,
+ F32Le = 0x5f,
+ F32Ge = 0x60,
+ F64Eq = 0x61,
+ F64Ne = 0x62,
+ F64Lt = 0x63,
+ F64Gt = 0x64,
+ F64Le = 0x65,
+ F64Ge = 0x66,
+
+ // Numeric operators
+ I32Clz = 0x67,
+ I32Ctz = 0x68,
+ I32Popcnt = 0x69,
+ I32Add = 0x6a,
+ I32Sub = 0x6b,
+ I32Mul = 0x6c,
+ I32DivS = 0x6d,
+ I32DivU = 0x6e,
+ I32RemS = 0x6f,
+ I32RemU = 0x70,
+ I32And = 0x71,
+ I32Or = 0x72,
+ I32Xor = 0x73,
+ I32Shl = 0x74,
+ I32ShrS = 0x75,
+ I32ShrU = 0x76,
+ I32Rotl = 0x77,
+ I32Rotr = 0x78,
+ I64Clz = 0x79,
+ I64Ctz = 0x7a,
+ I64Popcnt = 0x7b,
+ I64Add = 0x7c,
+ I64Sub = 0x7d,
+ I64Mul = 0x7e,
+ I64DivS = 0x7f,
+ I64DivU = 0x80,
+ I64RemS = 0x81,
+ I64RemU = 0x82,
+ I64And = 0x83,
+ I64Or = 0x84,
+ I64Xor = 0x85,
+ I64Shl = 0x86,
+ I64ShrS = 0x87,
+ I64ShrU = 0x88,
+ I64Rotl = 0x89,
+ I64Rotr = 0x8a,
+ F32Abs = 0x8b,
+ F32Neg = 0x8c,
+ F32Ceil = 0x8d,
+ F32Floor = 0x8e,
+ F32Trunc = 0x8f,
+ F32Nearest = 0x90,
+ F32Sqrt = 0x91,
+ F32Add = 0x92,
+ F32Sub = 0x93,
+ F32Mul = 0x94,
+ F32Div = 0x95,
+ F32Min = 0x96,
+ F32Max = 0x97,
+ F32CopySign = 0x98,
+ F64Abs = 0x99,
+ F64Neg = 0x9a,
+ F64Ceil = 0x9b,
+ F64Floor = 0x9c,
+ F64Trunc = 0x9d,
+ F64Nearest = 0x9e,
+ F64Sqrt = 0x9f,
+ F64Add = 0xa0,
+ F64Sub = 0xa1,
+ F64Mul = 0xa2,
+ F64Div = 0xa3,
+ F64Min = 0xa4,
+ F64Max = 0xa5,
+ F64CopySign = 0xa6,
+
+ // Conversions
+ I32WrapI64 = 0xa7,
+ I32TruncSF32 = 0xa8,
+ I32TruncUF32 = 0xa9,
+ I32TruncSF64 = 0xaa,
+ I32TruncUF64 = 0xab,
+ I64ExtendSI32 = 0xac,
+ I64ExtendUI32 = 0xad,
+ I64TruncSF32 = 0xae,
+ I64TruncUF32 = 0xaf,
+ I64TruncSF64 = 0xb0,
+ I64TruncUF64 = 0xb1,
+ F32ConvertSI32 = 0xb2,
+ F32ConvertUI32 = 0xb3,
+ F32ConvertSI64 = 0xb4,
+ F32ConvertUI64 = 0xb5,
+ F32DemoteF64 = 0xb6,
+ F64ConvertSI32 = 0xb7,
+ F64ConvertUI32 = 0xb8,
+ F64ConvertSI64 = 0xb9,
+ F64ConvertUI64 = 0xba,
+ F64PromoteF32 = 0xbb,
+
+ // Reinterpretations
+ I32ReinterpretF32 = 0xbc,
+ I64ReinterpretF64 = 0xbd,
+ F32ReinterpretI32 = 0xbe,
+ F64ReinterpretI64 = 0xbf,
+
+ // ------------------------------------------------------------------------
+ // The rest of these operators are currently only emitted internally when
+ // compiling asm.js and are rejected by wasm validation.
+
+ // asm.js-specific operators
+ TeeGlobal = 0xc8,
+ I32Min,
+ I32Max,
+ I32Neg,
+ I32BitNot,
+ I32Abs,
+ F32TeeStoreF64,
+ F64TeeStoreF32,
+ I32TeeStore8,
+ I32TeeStore16,
+ I64TeeStore8,
+ I64TeeStore16,
+ I64TeeStore32,
+ I32TeeStore,
+ I64TeeStore,
+ F32TeeStore,
+ F64TeeStore,
+ F64Mod,
+ F64Sin,
+ F64Cos,
+ F64Tan,
+ F64Asin,
+ F64Acos,
+ F64Atan,
+ F64Exp,
+ F64Log,
+ F64Pow,
+ F64Atan2,
+
+ // asm.js-style call_indirect with the callee evaluated first.
+ OldCallIndirect,
+
+ // Atomics
+ I32AtomicsCompareExchange,
+ I32AtomicsExchange,
+ I32AtomicsLoad,
+ I32AtomicsStore,
+ I32AtomicsBinOp,
+
+ // SIMD
+#define SIMD_OPCODE(TYPE, OP) TYPE##OP,
+#define _(OP) SIMD_OPCODE(I8x16, OP)
+ FORALL_INT8X16_ASMJS_OP(_)
+ I8x16Constructor,
+ I8x16Const,
+#undef _
+ // Unsigned I8x16 operations. These are the SIMD.Uint8x16 operations that
+ // behave differently from their SIMD.Int8x16 counterparts.
+ I8x16extractLaneU,
+ I8x16addSaturateU,
+ I8x16subSaturateU,
+ I8x16shiftRightByScalarU,
+ I8x16lessThanU,
+ I8x16lessThanOrEqualU,
+ I8x16greaterThanU,
+ I8x16greaterThanOrEqualU,
+
+#define SIMD_OPCODE(TYPE, OP) TYPE##OP,
+#define _(OP) SIMD_OPCODE(I16x8, OP)
+ FORALL_INT16X8_ASMJS_OP(_)
+ I16x8Constructor,
+ I16x8Const,
+#undef _
+ // Unsigned I16x8 operations. These are the SIMD.Uint16x8 operations that
+ // behave differently from their SIMD.Int16x8 counterparts.
+ I16x8extractLaneU,
+ I16x8addSaturateU,
+ I16x8subSaturateU,
+ I16x8shiftRightByScalarU,
+ I16x8lessThanU,
+ I16x8lessThanOrEqualU,
+ I16x8greaterThanU,
+ I16x8greaterThanOrEqualU,
+
+#define SIMD_OPCODE(TYPE, OP) TYPE##OP,
+#define _(OP) SIMD_OPCODE(I32x4, OP)
+ FORALL_INT32X4_ASMJS_OP(_)
+ I32x4Constructor,
+ I32x4Const,
+#undef _
+ // Unsigned I32x4 operations. These are the SIMD.Uint32x4 operations that
+ // behave differently from their SIMD.Int32x4 counterparts.
+ I32x4shiftRightByScalarU,
+ I32x4lessThanU,
+ I32x4lessThanOrEqualU,
+ I32x4greaterThanU,
+ I32x4greaterThanOrEqualU,
+ I32x4fromFloat32x4U,
+#define _(OP) SIMD_OPCODE(F32x4, OP)
+ FORALL_FLOAT32X4_ASMJS_OP(_)
+ F32x4Constructor,
+ F32x4Const,
+#undef _
+
+#define _(OP) SIMD_OPCODE(B8x16, OP)
+ FORALL_BOOL_SIMD_OP(_)
+ B8x16Constructor,
+ B8x16Const,
+#undef _
+#undef OPCODE
+
+#define _(OP) SIMD_OPCODE(B16x8, OP)
+ FORALL_BOOL_SIMD_OP(_)
+ B16x8Constructor,
+ B16x8Const,
+#undef _
+#undef OPCODE
+
+#define _(OP) SIMD_OPCODE(B32x4, OP)
+ FORALL_BOOL_SIMD_OP(_)
+ B32x4Constructor,
+ B32x4Const,
+#undef _
+#undef OPCODE
+
+ Limit
+};
+
+// Telemetry sample values for the JS_AOT_USAGE key, indicating whether asm.js
+// or WebAssembly is used.
+
+enum class Telemetry
+{
+ ASMJS = 0,
+ WASM = 1
+};
+
+} // namespace wasm
+} // namespace js
+
+#endif // wasm_binary_h
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