blob: 7af21cf8a1c92d055bb03ae5963a2928c5c402e5 [file] [log] [blame]
// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/wasm/wasm-opcodes.h"
#include <array>
#include "src/base/template-utils.h"
#include "src/codegen/signature.h"
#include "src/execution/messages.h"
#include "src/runtime/runtime.h"
#include "src/wasm/wasm-features.h"
namespace v8 {
namespace internal {
namespace wasm {
#define CASE_OP(name, str) \
case kExpr##name: \
return str;
#define CASE_I32_OP(name, str) CASE_OP(I32##name, "i32." str)
#define CASE_I64_OP(name, str) CASE_OP(I64##name, "i64." str)
#define CASE_F32_OP(name, str) CASE_OP(F32##name, "f32." str)
#define CASE_F64_OP(name, str) CASE_OP(F64##name, "f64." str)
#define CASE_REF_OP(name, str) CASE_OP(Ref##name, "ref." str)
#define CASE_F64x2_OP(name, str) CASE_OP(F64x2##name, "f64x2." str)
#define CASE_F32x4_OP(name, str) CASE_OP(F32x4##name, "f32x4." str)
#define CASE_I64x2_OP(name, str) CASE_OP(I64x2##name, "i64x2." str)
#define CASE_I32x4_OP(name, str) CASE_OP(I32x4##name, "i32x4." str)
#define CASE_I16x8_OP(name, str) CASE_OP(I16x8##name, "i16x8." str)
#define CASE_I8x16_OP(name, str) CASE_OP(I8x16##name, "i8x16." str)
#define CASE_S128_OP(name, str) CASE_OP(S128##name, "s128." str)
#define CASE_S64x2_OP(name, str) CASE_OP(S64x2##name, "s64x2." str)
#define CASE_S32x4_OP(name, str) CASE_OP(S32x4##name, "s32x4." str)
#define CASE_S16x8_OP(name, str) CASE_OP(S16x8##name, "s16x8." str)
#define CASE_S8x16_OP(name, str) CASE_OP(S8x16##name, "s8x16." str)
#define CASE_S1x2_OP(name, str) CASE_OP(S1x2##name, "s1x2." str)
#define CASE_S1x4_OP(name, str) CASE_OP(S1x4##name, "s1x4." str)
#define CASE_S1x8_OP(name, str) CASE_OP(S1x8##name, "s1x8." str)
#define CASE_S1x16_OP(name, str) CASE_OP(S1x16##name, "s1x16." str)
#define CASE_INT_OP(name, str) CASE_I32_OP(name, str) CASE_I64_OP(name, str)
#define CASE_FLOAT_OP(name, str) CASE_F32_OP(name, str) CASE_F64_OP(name, str)
#define CASE_ALL_OP(name, str) CASE_FLOAT_OP(name, str) CASE_INT_OP(name, str)
#define CASE_SIMD_OP(name, str) \
CASE_F32x4_OP(name, str) CASE_I32x4_OP(name, str) CASE_I16x8_OP(name, str) \
CASE_I8x16_OP(name, str)
#define CASE_SIMDI_OP(name, str) \
CASE_I32x4_OP(name, str) CASE_I16x8_OP(name, str) CASE_I8x16_OP(name, str)
#define CASE_SIGN_OP(TYPE, name, str) \
CASE_##TYPE##_OP(name##S, str "_s") CASE_##TYPE##_OP(name##U, str "_u")
#define CASE_UNSIGNED_OP(TYPE, name, str) CASE_##TYPE##_OP(name##U, str "_u")
#define CASE_ALL_SIGN_OP(name, str) \
CASE_FLOAT_OP(name, str) CASE_SIGN_OP(INT, name, str)
#define CASE_CONVERT_OP(name, RES, SRC, src_suffix, str) \
CASE_##RES##_OP(U##name##SRC, str "_" src_suffix "_u") \
CASE_##RES##_OP(S##name##SRC, str "_" src_suffix "_s")
#define CASE_CONVERT_SAT_OP(name, RES, SRC, src_suffix, str) \
CASE_##RES##_OP(U##name##Sat##SRC, str "_sat_" src_suffix "_u") \
CASE_##RES##_OP(S##name##Sat##SRC, str "_sat_" src_suffix "_s")
#define CASE_L32_OP(name, str) \
CASE_SIGN_OP(I32, name##8, str "8") \
CASE_SIGN_OP(I32, name##16, str "16") \
CASE_I32_OP(name, str "32")
#define CASE_U32_OP(name, str) \
CASE_I32_OP(name, str "32") \
CASE_UNSIGNED_OP(I32, name##8, str "8") \
CASE_UNSIGNED_OP(I32, name##16, str "16")
#define CASE_UNSIGNED_ALL_OP(name, str) \
CASE_U32_OP(name, str) \
CASE_I64_OP(name, str "64") \
CASE_UNSIGNED_OP(I64, name##8, str "8") \
CASE_UNSIGNED_OP(I64, name##16, str "16") \
CASE_UNSIGNED_OP(I64, name##32, str "32")
const char* WasmOpcodes::OpcodeName(WasmOpcode opcode) {
switch (opcode) {
// clang-format off
// Standard opcodes
CASE_INT_OP(Eqz, "eqz")
CASE_ALL_OP(Eq, "eq")
CASE_ALL_OP(Ne, "ne")
CASE_ALL_OP(Add, "add")
CASE_ALL_OP(Sub, "sub")
CASE_ALL_OP(Mul, "mul")
CASE_ALL_SIGN_OP(Lt, "lt")
CASE_ALL_SIGN_OP(Gt, "gt")
CASE_ALL_SIGN_OP(Le, "le")
CASE_ALL_SIGN_OP(Ge, "ge")
CASE_INT_OP(Clz, "clz")
CASE_INT_OP(Ctz, "ctz")
CASE_INT_OP(Popcnt, "popcnt")
CASE_ALL_SIGN_OP(Div, "div")
CASE_SIGN_OP(INT, Rem, "rem")
CASE_INT_OP(And, "and")
CASE_INT_OP(Ior, "or")
CASE_INT_OP(Xor, "xor")
CASE_INT_OP(Shl, "shl")
CASE_SIGN_OP(INT, Shr, "shr")
CASE_INT_OP(Rol, "rol")
CASE_INT_OP(Ror, "ror")
CASE_FLOAT_OP(Abs, "abs")
CASE_FLOAT_OP(Neg, "neg")
CASE_FLOAT_OP(Ceil, "ceil")
CASE_FLOAT_OP(Floor, "floor")
CASE_FLOAT_OP(Trunc, "trunc")
CASE_FLOAT_OP(NearestInt, "nearest")
CASE_FLOAT_OP(Sqrt, "sqrt")
CASE_FLOAT_OP(Min, "min")
CASE_FLOAT_OP(Max, "max")
CASE_FLOAT_OP(CopySign, "copysign")
CASE_REF_OP(Null, "null")
CASE_REF_OP(IsNull, "is_null")
CASE_REF_OP(Func, "func")
CASE_I32_OP(ConvertI64, "wrap_i64")
CASE_CONVERT_OP(Convert, INT, F32, "f32", "trunc")
CASE_CONVERT_OP(Convert, INT, F64, "f64", "trunc")
CASE_CONVERT_OP(Convert, I64, I32, "i32", "extend")
CASE_CONVERT_OP(Convert, F32, I32, "i32", "convert")
CASE_CONVERT_OP(Convert, F32, I64, "i64", "convert")
CASE_F32_OP(ConvertF64, "demote_f64")
CASE_CONVERT_OP(Convert, F64, I32, "i32", "convert")
CASE_CONVERT_OP(Convert, F64, I64, "i64", "convert")
CASE_F64_OP(ConvertF32, "promote_f32")
CASE_I32_OP(ReinterpretF32, "reinterpret_f32")
CASE_I64_OP(ReinterpretF64, "reinterpret_f64")
CASE_F32_OP(ReinterpretI32, "reinterpret_i32")
CASE_F64_OP(ReinterpretI64, "reinterpret_i64")
CASE_INT_OP(SExtendI8, "extend8_s")
CASE_INT_OP(SExtendI16, "extend16_s")
CASE_I64_OP(SExtendI32, "extend32_s")
CASE_OP(Unreachable, "unreachable")
CASE_OP(Nop, "nop")
CASE_OP(Block, "block")
CASE_OP(Loop, "loop")
CASE_OP(If, "if")
CASE_OP(Else, "else")
CASE_OP(End, "end")
CASE_OP(Br, "br")
CASE_OP(BrIf, "br_if")
CASE_OP(BrTable, "br_table")
CASE_OP(Return, "return")
CASE_OP(CallFunction, "call")
CASE_OP(CallIndirect, "call_indirect")
CASE_OP(ReturnCall, "return_call")
CASE_OP(ReturnCallIndirect, "return_call_indirect")
CASE_OP(Drop, "drop")
CASE_OP(Select, "select")
CASE_OP(SelectWithType, "select")
CASE_OP(LocalGet, "local.get")
CASE_OP(LocalSet, "local.set")
CASE_OP(LocalTee, "local.tee")
CASE_OP(GlobalGet, "global.get")
CASE_OP(GlobalSet, "global.set")
CASE_OP(TableGet, "table.get")
CASE_OP(TableSet, "table.set")
CASE_ALL_OP(Const, "const")
CASE_OP(MemorySize, "memory.size")
CASE_OP(MemoryGrow, "memory.grow")
CASE_ALL_OP(LoadMem, "load")
CASE_SIGN_OP(INT, LoadMem8, "load8")
CASE_SIGN_OP(INT, LoadMem16, "load16")
CASE_SIGN_OP(I64, LoadMem32, "load32")
CASE_S128_OP(LoadMem, "load128")
CASE_ALL_OP(StoreMem, "store")
CASE_INT_OP(StoreMem8, "store8")
CASE_INT_OP(StoreMem16, "store16")
CASE_I64_OP(StoreMem32, "store32")
CASE_S128_OP(StoreMem, "store128")
// Exception handling opcodes.
CASE_OP(Try, "try")
CASE_OP(Catch, "catch")
CASE_OP(Throw, "throw")
CASE_OP(Rethrow, "rethrow")
CASE_OP(BrOnExn, "br_on_exn")
// asm.js-only opcodes.
CASE_F64_OP(Acos, "acos")
CASE_F64_OP(Asin, "asin")
CASE_F64_OP(Atan, "atan")
CASE_F64_OP(Cos, "cos")
CASE_F64_OP(Sin, "sin")
CASE_F64_OP(Tan, "tan")
CASE_F64_OP(Exp, "exp")
CASE_F64_OP(Log, "log")
CASE_F64_OP(Atan2, "atan2")
CASE_F64_OP(Pow, "pow")
CASE_F64_OP(Mod, "mod")
CASE_F32_OP(AsmjsLoadMem, "asmjs_load")
CASE_F64_OP(AsmjsLoadMem, "asmjs_load")
CASE_L32_OP(AsmjsLoadMem, "asmjs_load")
CASE_I32_OP(AsmjsStoreMem, "asmjs_store")
CASE_F32_OP(AsmjsStoreMem, "asmjs_store")
CASE_F64_OP(AsmjsStoreMem, "asmjs_store")
CASE_I32_OP(AsmjsStoreMem8, "asmjs_store8")
CASE_I32_OP(AsmjsStoreMem16, "asmjs_store16")
CASE_SIGN_OP(I32, AsmjsDiv, "asmjs_div")
CASE_SIGN_OP(I32, AsmjsRem, "asmjs_rem")
CASE_I32_OP(AsmjsSConvertF32, "asmjs_convert_f32_s")
CASE_I32_OP(AsmjsUConvertF32, "asmjs_convert_f32_u")
CASE_I32_OP(AsmjsSConvertF64, "asmjs_convert_f64_s")
CASE_I32_OP(AsmjsUConvertF64, "asmjs_convert_f64_u")
// Numeric Opcodes.
CASE_CONVERT_SAT_OP(Convert, I32, F32, "f32", "trunc")
CASE_CONVERT_SAT_OP(Convert, I32, F64, "f64", "trunc")
CASE_CONVERT_SAT_OP(Convert, I64, F32, "f32", "trunc")
CASE_CONVERT_SAT_OP(Convert, I64, F64, "f64", "trunc")
CASE_OP(MemoryInit, "memory.init")
CASE_OP(DataDrop, "data.drop")
CASE_OP(MemoryCopy, "memory.copy")
CASE_OP(MemoryFill, "memory.fill")
CASE_OP(TableInit, "table.init")
CASE_OP(ElemDrop, "elem.drop")
CASE_OP(TableCopy, "table.copy")
CASE_OP(TableGrow, "table.grow")
CASE_OP(TableSize, "table.size")
CASE_OP(TableFill, "table.fill")
// SIMD opcodes.
CASE_SIMD_OP(Splat, "splat")
CASE_SIMD_OP(Neg, "neg")
CASE_F64x2_OP(Neg, "neg")
CASE_F64x2_OP(Sqrt, "sqrt")
CASE_F32x4_OP(Sqrt, "sqrt")
CASE_I64x2_OP(Neg, "neg")
CASE_SIMD_OP(Eq, "eq")
CASE_F64x2_OP(Eq, "eq")
CASE_I64x2_OP(Eq, "eq")
CASE_SIMD_OP(Ne, "ne")
CASE_F64x2_OP(Ne, "ne")
CASE_I64x2_OP(Ne, "ne")
CASE_SIMD_OP(Add, "add")
CASE_F64x2_OP(Add, "add")
CASE_I64x2_OP(Add, "add")
CASE_SIMD_OP(Sub, "sub")
CASE_F64x2_OP(Sub, "sub")
CASE_I64x2_OP(Sub, "sub")
CASE_SIMD_OP(Mul, "mul")
CASE_F64x2_OP(Mul, "mul")
CASE_I64x2_OP(Mul, "mul")
CASE_F64x2_OP(Div, "div")
CASE_F32x4_OP(Div, "div")
CASE_F64x2_OP(Splat, "splat")
CASE_F64x2_OP(Lt, "lt")
CASE_F64x2_OP(Le, "le")
CASE_F64x2_OP(Gt, "gt")
CASE_F64x2_OP(Ge, "ge")
CASE_F64x2_OP(Abs, "abs")
CASE_F32x4_OP(Abs, "abs")
CASE_F32x4_OP(AddHoriz, "add_horizontal")
CASE_F32x4_OP(RecipApprox, "recip_approx")
CASE_F32x4_OP(RecipSqrtApprox, "recip_sqrt_approx")
CASE_F64x2_OP(Min, "min")
CASE_F32x4_OP(Min, "min")
CASE_F64x2_OP(Max, "max")
CASE_F32x4_OP(Max, "max")
CASE_F32x4_OP(Lt, "lt")
CASE_F32x4_OP(Le, "le")
CASE_F32x4_OP(Gt, "gt")
CASE_F32x4_OP(Ge, "ge")
CASE_CONVERT_OP(Convert, F32x4, I32x4, "i32", "convert")
CASE_CONVERT_OP(Convert, I32x4, F32x4, "f32", "convert")
CASE_CONVERT_OP(Convert, I32x4, I16x8Low, "i32", "convert")
CASE_CONVERT_OP(Convert, I32x4, I16x8High, "i32", "convert")
CASE_CONVERT_OP(Convert, I16x8, I32x4, "i32", "convert")
CASE_CONVERT_OP(Convert, I16x8, I8x16Low, "i32", "convert")
CASE_CONVERT_OP(Convert, I16x8, I8x16High, "i32", "convert")
CASE_CONVERT_OP(Convert, I8x16, I16x8, "i32", "convert")
CASE_F64x2_OP(ExtractLane, "extract_lane")
CASE_F64x2_OP(ReplaceLane, "replace_lane")
CASE_F32x4_OP(ExtractLane, "extract_lane")
CASE_F32x4_OP(ReplaceLane, "replace_lane")
CASE_I64x2_OP(ExtractLane, "extract_lane")
CASE_I64x2_OP(ReplaceLane, "replace_lane")
CASE_I32x4_OP(ExtractLane, "extract_lane")
CASE_SIGN_OP(I16x8, ExtractLane, "extract_lane")
CASE_SIGN_OP(I8x16, ExtractLane, "extract_lane")
CASE_SIMDI_OP(ReplaceLane, "replace_lane")
CASE_SIGN_OP(SIMDI, Min, "min")
CASE_SIGN_OP(I64x2, Min, "min")
CASE_SIGN_OP(SIMDI, Max, "max")
CASE_SIGN_OP(I64x2, Max, "max")
CASE_SIGN_OP(SIMDI, Lt, "lt")
CASE_SIGN_OP(I64x2, Lt, "lt")
CASE_SIGN_OP(SIMDI, Le, "le")
CASE_SIGN_OP(I64x2, Le, "le")
CASE_SIGN_OP(SIMDI, Gt, "gt")
CASE_SIGN_OP(I64x2, Gt, "gt")
CASE_SIGN_OP(SIMDI, Ge, "ge")
CASE_SIGN_OP(I64x2, Ge, "ge")
CASE_SIGN_OP(SIMDI, Shr, "shr")
CASE_SIGN_OP(I64x2, Shr, "shr")
CASE_SIMDI_OP(Shl, "shl")
CASE_I64x2_OP(Shl, "shl")
CASE_I64x2_OP(Splat, "splat")
CASE_I32x4_OP(AddHoriz, "add_horizontal")
CASE_I16x8_OP(AddHoriz, "add_horizontal")
CASE_SIGN_OP(I16x8, AddSaturate, "add_saturate")
CASE_SIGN_OP(I8x16, AddSaturate, "add_saturate")
CASE_SIGN_OP(I16x8, SubSaturate, "sub_saturate")
CASE_SIGN_OP(I8x16, SubSaturate, "sub_saturate")
CASE_S128_OP(And, "and")
CASE_S128_OP(Or, "or")
CASE_S128_OP(Xor, "xor")
CASE_S128_OP(Not, "not")
CASE_S128_OP(Select, "select")
CASE_S128_OP(AndNot, "andnot")
CASE_S8x16_OP(Swizzle, "swizzle")
CASE_S8x16_OP(Shuffle, "shuffle")
CASE_S1x2_OP(AnyTrue, "any_true")
CASE_S1x2_OP(AllTrue, "all_true")
CASE_S1x4_OP(AnyTrue, "any_true")
CASE_S1x4_OP(AllTrue, "all_true")
CASE_S1x8_OP(AnyTrue, "any_true")
CASE_S1x8_OP(AllTrue, "all_true")
CASE_S1x16_OP(AnyTrue, "any_true")
CASE_S1x16_OP(AllTrue, "all_true")
CASE_F64x2_OP(Qfma, "qfma")
CASE_F64x2_OP(Qfms, "qfms")
CASE_F32x4_OP(Qfma, "qfma")
CASE_F32x4_OP(Qfms, "qfms")
CASE_S8x16_OP(LoadSplat, "load_splat")
CASE_S16x8_OP(LoadSplat, "load_splat")
CASE_S32x4_OP(LoadSplat, "load_splat")
CASE_S64x2_OP(LoadSplat, "load_splat")
CASE_I16x8_OP(Load8x8S, "load8x8_s")
CASE_I16x8_OP(Load8x8U, "load8x8_u")
CASE_I32x4_OP(Load16x4S, "load16x4_s")
CASE_I32x4_OP(Load16x4U, "load16x4_u")
CASE_I64x2_OP(Load32x2S, "load32x2_s")
CASE_I64x2_OP(Load32x2U, "load32x2_u")
CASE_I8x16_OP(RoundingAverageU, "avgr_u")
CASE_I16x8_OP(RoundingAverageU, "avgr_u")
// Atomic operations.
CASE_OP(AtomicNotify, "atomic.notify")
CASE_INT_OP(AtomicWait, "atomic.wait")
CASE_OP(AtomicFence, "atomic.fence")
CASE_UNSIGNED_ALL_OP(AtomicLoad, "atomic.load")
CASE_UNSIGNED_ALL_OP(AtomicStore, "atomic.store")
CASE_UNSIGNED_ALL_OP(AtomicAdd, "atomic.add")
CASE_UNSIGNED_ALL_OP(AtomicSub, "atomic.sub")
CASE_UNSIGNED_ALL_OP(AtomicAnd, "atomic.and")
CASE_UNSIGNED_ALL_OP(AtomicOr, "atomic.or")
CASE_UNSIGNED_ALL_OP(AtomicXor, "atomic.xor")
CASE_UNSIGNED_ALL_OP(AtomicExchange, "atomic.xchng")
CASE_UNSIGNED_ALL_OP(AtomicCompareExchange, "atomic.cmpxchng")
default : return "unknown";
// clang-format on
}
}
#undef CASE_OP
#undef CASE_I32_OP
#undef CASE_I64_OP
#undef CASE_F32_OP
#undef CASE_F64_OP
#undef CASE_REF_OP
#undef CASE_F64x2_OP
#undef CASE_F32x4_OP
#undef CASE_I64x2_OP
#undef CASE_I32x4_OP
#undef CASE_I16x8_OP
#undef CASE_I8x16_OP
#undef CASE_S128_OP
#undef CASE_S64x2_OP
#undef CASE_S32x4_OP
#undef CASE_S16x8_OP
#undef CASE_S8x16_OP
#undef CASE_S1x2_OP
#undef CASE_S1x4_OP
#undef CASE_S1x8_OP
#undef CASE_S1x16_OP
#undef CASE_INT_OP
#undef CASE_FLOAT_OP
#undef CASE_ALL_OP
#undef CASE_SIMD_OP
#undef CASE_SIMDI_OP
#undef CASE_SIGN_OP
#undef CASE_UNSIGNED_OP
#undef CASE_UNSIGNED_ALL_OP
#undef CASE_ALL_SIGN_OP
#undef CASE_CONVERT_OP
#undef CASE_CONVERT_SAT_OP
#undef CASE_L32_OP
#undef CASE_U32_OP
bool WasmOpcodes::IsPrefixOpcode(WasmOpcode opcode) {
switch (opcode) {
#define CHECK_PREFIX(name, opcode) case k##name##Prefix:
FOREACH_PREFIX(CHECK_PREFIX)
#undef CHECK_PREFIX
return true;
default:
return false;
}
}
bool WasmOpcodes::IsControlOpcode(WasmOpcode opcode) {
switch (opcode) {
#define CHECK_OPCODE(name, opcode, _) case kExpr##name:
FOREACH_CONTROL_OPCODE(CHECK_OPCODE)
#undef CHECK_OPCODE
return true;
default:
return false;
}
}
bool WasmOpcodes::IsUnconditionalJump(WasmOpcode opcode) {
switch (opcode) {
case kExprUnreachable:
case kExprBr:
case kExprBrTable:
case kExprReturn:
return true;
default:
return false;
}
}
bool WasmOpcodes::IsAnyRefOpcode(WasmOpcode opcode) {
switch (opcode) {
case kExprRefNull:
case kExprRefIsNull:
case kExprRefFunc:
return true;
default:
return false;
}
}
bool WasmOpcodes::IsThrowingOpcode(WasmOpcode opcode) {
// TODO(8729): Trapping opcodes are not yet considered to be throwing.
switch (opcode) {
case kExprThrow:
case kExprRethrow:
case kExprCallFunction:
case kExprCallIndirect:
return true;
default:
return false;
}
}
std::ostream& operator<<(std::ostream& os, const FunctionSig& sig) {
if (sig.return_count() == 0) os << "v";
for (auto ret : sig.returns()) {
os << ValueTypes::ShortNameOf(ret);
}
os << "_";
if (sig.parameter_count() == 0) os << "v";
for (auto param : sig.parameters()) {
os << ValueTypes::ShortNameOf(param);
}
return os;
}
bool IsJSCompatibleSignature(const FunctionSig* sig,
const WasmFeatures& enabled_features) {
if (!enabled_features.has_mv() && sig->return_count() > 1) {
return false;
}
for (auto type : sig->all()) {
if (!enabled_features.has_bigint() && type == kWasmI64) {
return false;
}
if (type == kWasmS128) return false;
}
return true;
}
namespace {
#define DECLARE_SIG_ENUM(name, ...) kSigEnum_##name,
enum WasmOpcodeSig : byte {
kSigEnum_None,
FOREACH_SIGNATURE(DECLARE_SIG_ENUM)
};
#undef DECLARE_SIG_ENUM
#define DECLARE_SIG(name, ...) \
constexpr ValueType kTypes_##name[] = {__VA_ARGS__}; \
constexpr int kReturnsCount_##name = kTypes_##name[0] == kWasmStmt ? 0 : 1; \
constexpr FunctionSig kSig_##name( \
kReturnsCount_##name, static_cast<int>(arraysize(kTypes_##name)) - 1, \
kTypes_##name + (1 - kReturnsCount_##name));
FOREACH_SIGNATURE(DECLARE_SIG)
#undef DECLARE_SIG
#define DECLARE_SIG_ENTRY(name, ...) &kSig_##name,
constexpr const FunctionSig* kCachedSigs[] = {
nullptr, FOREACH_SIGNATURE(DECLARE_SIG_ENTRY)};
#undef DECLARE_SIG_ENTRY
constexpr WasmOpcodeSig GetShortOpcodeSigIndex(byte opcode) {
#define CASE(name, opc, sig) opcode == opc ? kSigEnum_##sig:
return FOREACH_SIMPLE_OPCODE(CASE) FOREACH_SIMPLE_PROTOTYPE_OPCODE(CASE)
kSigEnum_None;
#undef CASE
}
constexpr WasmOpcodeSig GetAsmJsOpcodeSigIndex(byte opcode) {
#define CASE(name, opc, sig) opcode == opc ? kSigEnum_##sig:
return FOREACH_ASMJS_COMPAT_OPCODE(CASE) kSigEnum_None;
#undef CASE
}
constexpr WasmOpcodeSig GetSimdOpcodeSigIndex(byte opcode) {
#define CASE(name, opc, sig) opcode == (opc & 0xFF) ? kSigEnum_##sig:
return FOREACH_SIMD_0_OPERAND_OPCODE(CASE) FOREACH_SIMD_MEM_OPCODE(CASE)
kSigEnum_None;
#undef CASE
}
constexpr WasmOpcodeSig GetAtomicOpcodeSigIndex(byte opcode) {
#define CASE(name, opc, sig) opcode == (opc & 0xFF) ? kSigEnum_##sig:
return FOREACH_ATOMIC_OPCODE(CASE) FOREACH_ATOMIC_0_OPERAND_OPCODE(CASE)
kSigEnum_None;
#undef CASE
}
constexpr WasmOpcodeSig GetNumericOpcodeSigIndex(byte opcode) {
#define CASE(name, opc, sig) opcode == (opc & 0xFF) ? kSigEnum_##sig:
return FOREACH_NUMERIC_OPCODE(CASE) kSigEnum_None;
#undef CASE
}
constexpr std::array<WasmOpcodeSig, 256> kShortSigTable =
base::make_array<256>(GetShortOpcodeSigIndex);
constexpr std::array<WasmOpcodeSig, 256> kSimpleAsmjsExprSigTable =
base::make_array<256>(GetAsmJsOpcodeSigIndex);
constexpr std::array<WasmOpcodeSig, 256> kSimdExprSigTable =
base::make_array<256>(GetSimdOpcodeSigIndex);
constexpr std::array<WasmOpcodeSig, 256> kAtomicExprSigTable =
base::make_array<256>(GetAtomicOpcodeSigIndex);
constexpr std::array<WasmOpcodeSig, 256> kNumericExprSigTable =
base::make_array<256>(GetNumericOpcodeSigIndex);
} // namespace
FunctionSig* WasmOpcodes::Signature(WasmOpcode opcode) {
switch (opcode >> 8) {
case 0:
return const_cast<FunctionSig*>(kCachedSigs[kShortSigTable[opcode]]);
case kSimdPrefix:
return const_cast<FunctionSig*>(
kCachedSigs[kSimdExprSigTable[opcode & 0xFF]]);
case kAtomicPrefix:
return const_cast<FunctionSig*>(
kCachedSigs[kAtomicExprSigTable[opcode & 0xFF]]);
case kNumericPrefix:
return const_cast<FunctionSig*>(
kCachedSigs[kNumericExprSigTable[opcode & 0xFF]]);
default:
UNREACHABLE(); // invalid prefix.
return nullptr;
}
}
FunctionSig* WasmOpcodes::AsmjsSignature(WasmOpcode opcode) {
DCHECK_GT(kSimpleAsmjsExprSigTable.size(), opcode);
return const_cast<FunctionSig*>(
kCachedSigs[kSimpleAsmjsExprSigTable[opcode]]);
}
// Define constexpr arrays.
constexpr uint8_t LoadType::kLoadSizeLog2[];
constexpr ValueType LoadType::kValueType[];
constexpr MachineType LoadType::kMemType[];
constexpr uint8_t StoreType::kStoreSizeLog2[];
constexpr ValueType StoreType::kValueType[];
constexpr MachineRepresentation StoreType::kMemRep[];
MessageTemplate WasmOpcodes::TrapReasonToMessageId(TrapReason reason) {
switch (reason) {
#define TRAPREASON_TO_MESSAGE(name) \
case k##name: \
return MessageTemplate::kWasm##name;
FOREACH_WASM_TRAPREASON(TRAPREASON_TO_MESSAGE)
#undef TRAPREASON_TO_MESSAGE
default:
return MessageTemplate::kNone;
}
}
const char* WasmOpcodes::TrapReasonMessage(TrapReason reason) {
return MessageFormatter::TemplateString(TrapReasonToMessageId(reason));
}
} // namespace wasm
} // namespace internal
} // namespace v8