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v8/test/fuzzer/wasm-compile.cc
Manos Koukoutos ba688c6ec9 [wasm] Rename anyref to externref, anyref flag/feature to reftypes 
The reference types wasm proposal dropped all subtyping. Subsequently,
the 'anyref' type was renamed to externref.
This changes all references of the *type* anyref to externref.
Additionally, the flag that permits this extension is renamed to
"reftypes" to mirror the proposal name.

Bug: v8:7748
Change-Id: Icf323f13b9660fd10540e65125af053fca3a03f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2232941
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68270}
2020-06-09 17:51:04 +00:00

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// Copyright 2017 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 <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <algorithm>
#include "include/v8.h"
#include "src/execution/isolate.h"
#include "src/objects/objects-inl.h"
#include "src/objects/objects.h"
#include "src/utils/ostreams.h"
#include "src/wasm/wasm-interpreter.h"
#include "src/wasm/wasm-module-builder.h"
#include "src/wasm/wasm-module.h"
#include "src/wasm/wasm-opcodes.h"
#include "test/common/wasm/flag-utils.h"
#include "test/common/wasm/test-signatures.h"
#include "test/common/wasm/wasm-module-runner.h"
#include "test/fuzzer/fuzzer-support.h"
#include "test/fuzzer/wasm-fuzzer-common.h"
namespace v8 {
namespace internal {
namespace wasm {
namespace fuzzer {
namespace {
constexpr int kMaxFunctions = 4;
constexpr int kMaxGlobals = 64;
constexpr int kMaxParameters = 15;
constexpr int kMaxReturns = 15;
class DataRange {
Vector<const uint8_t> data_;
public:
explicit DataRange(Vector<const uint8_t> data) : data_(data) {}
// Don't accidentally pass DataRange by value. This will reuse bytes and might
// lead to OOM because the end might not be reached.
// Define move constructor and move assignment, disallow copy constructor and
// copy assignment (below).
DataRange(DataRange&& other) V8_NOEXCEPT : DataRange(other.data_) {
other.data_ = {};
}
DataRange& operator=(DataRange&& other) V8_NOEXCEPT {
data_ = other.data_;
other.data_ = {};
return *this;
}
size_t size() const { return data_.size(); }
DataRange split() {
uint16_t num_bytes = get<uint16_t>() % std::max(size_t{1}, data_.size());
DataRange split(data_.SubVector(0, num_bytes));
data_ += num_bytes;
return split;
}
template <typename T, size_t max_bytes = sizeof(T)>
T get() {
// DISABLE FOR BOOL
// The -O3 on release will break the result. This creates a different
// observable side effect when invoking get<bool> between debug and release
// version, which eventually makes the code output different as well as
// raising various unrecoverable errors on runtime. It is caused by
// undefined behavior of assigning boolean via memcpy from randomized bytes.
STATIC_ASSERT(!(std::is_same<T, bool>::value));
STATIC_ASSERT(max_bytes <= sizeof(T));
// We want to support the case where we have less than sizeof(T) bytes
// remaining in the slice. For example, if we emit an i32 constant, it's
// okay if we don't have a full four bytes available, we'll just use what
// we have. We aren't concerned about endianness because we are generating
// arbitrary expressions.
const size_t num_bytes = std::min(max_bytes, data_.size());
T result = T();
memcpy(&result, data_.begin(), num_bytes);
data_ += num_bytes;
return result;
}
DISALLOW_COPY_AND_ASSIGN(DataRange);
};
ValueType GetValueType(DataRange* data) {
// TODO(v8:8460): We do not add kWasmS128 here yet because this method is used
// to generate globals, and since we do not have v128.const yet, there is no
// way to specify an initial value a global of this type.
switch (data->get<uint8_t>() % 4) {
case 0:
return kWasmI32;
case 1:
return kWasmI64;
case 2:
return kWasmF32;
case 3:
return kWasmF64;
}
UNREACHABLE();
}
class WasmGenerator {
template <WasmOpcode Op, ValueType::Kind... Args>
void op(DataRange* data) {
Generate<Args...>(data);
builder_->Emit(Op);
}
class BlockScope {
public:
BlockScope(WasmGenerator* gen, WasmOpcode block_type,
const std::vector<ValueType>& param_types,
const std::vector<ValueType>& result_types,
const std::vector<ValueType>& br_types)
: gen_(gen) {
gen->blocks_.push_back(br_types);
if (param_types.size() == 0 && result_types.size() == 0) {
gen->builder_->EmitWithU8(block_type, kWasmStmt.value_type_code());
return;
}
if (param_types.size() == 0 && result_types.size() == 1) {
gen->builder_->EmitWithU8(block_type,
result_types[0].value_type_code());
return;
}
// Multi-value block.
Zone* zone = gen->builder_->builder()->zone();
FunctionSig::Builder builder(zone, result_types.size(),
param_types.size());
for (auto& type : param_types) {
DCHECK_NE(type, kWasmStmt);
builder.AddParam(type);
}
for (auto& type : result_types) {
DCHECK_NE(type, kWasmStmt);
builder.AddReturn(type);
}
FunctionSig* sig = builder.Build();
int sig_id = gen->builder_->builder()->AddSignature(sig);
gen->builder_->EmitWithI32V(block_type, sig_id);
}
~BlockScope() {
gen_->builder_->Emit(kExprEnd);
gen_->blocks_.pop_back();
}
private:
WasmGenerator* const gen_;
};
void block(const std::vector<ValueType>& param_types,
const std::vector<ValueType>& return_types, DataRange* data) {
BlockScope block_scope(this, kExprBlock, param_types, return_types,
return_types);
ConsumeAndGenerate(param_types, return_types, data);
}
template <ValueType::Kind T>
void block(DataRange* data) {
block({}, {ValueType(T)}, data);
}
void loop(const std::vector<ValueType>& param_types,
const std::vector<ValueType>& return_types, DataRange* data) {
BlockScope block_scope(this, kExprLoop, param_types, return_types,
param_types);
ConsumeAndGenerate(param_types, return_types, data);
}
template <ValueType::Kind T>
void loop(DataRange* data) {
loop({}, {ValueType(T)}, data);
}
enum IfType { kIf, kIfElse };
void if_(const std::vector<ValueType>& param_types,
const std::vector<ValueType>& return_types, IfType type,
DataRange* data) {
// One-armed "if" are only valid if the input and output types are the same.
DCHECK_IMPLIES(type == kIf, param_types == return_types);
Generate(kWasmI32, data);
BlockScope block_scope(this, kExprIf, param_types, return_types,
return_types);
ConsumeAndGenerate(param_types, return_types, data);
if (type == kIfElse) {
builder_->Emit(kExprElse);
ConsumeAndGenerate(param_types, return_types, data);
}
}
template <ValueType::Kind T, IfType type>
void if_(DataRange* data) {
static_assert(T == ValueType::kStmt || type == kIfElse,
"if without else cannot produce a value");
auto return_type = T == ValueType::kStmt
? std::vector<ValueType>{}
: std::vector<ValueType>{ValueType(T)};
if_({}, return_type, type, data);
}
void any_block(const std::vector<ValueType>& param_types,
const std::vector<ValueType>& return_types, DataRange* data) {
uint8_t block_type = data->get<uint8_t>() % 4;
switch (block_type) {
case 0:
block(param_types, return_types, data);
return;
case 1:
loop(param_types, return_types, data);
return;
case 2:
if (param_types == return_types) {
if_({}, {}, kIf, data);
return;
}
V8_FALLTHROUGH;
case 3:
if_(param_types, return_types, kIfElse, data);
return;
}
}
void br(DataRange* data) {
// There is always at least the block representing the function body.
DCHECK(!blocks_.empty());
const uint32_t target_block = data->get<uint32_t>() % blocks_.size();
const auto break_types = blocks_[target_block];
Generate(VectorOf(break_types), data);
builder_->EmitWithI32V(
kExprBr, static_cast<uint32_t>(blocks_.size()) - 1 - target_block);
}
template <ValueType::Kind wanted_type>
void br_if(DataRange* data) {
// There is always at least the block representing the function body.
DCHECK(!blocks_.empty());
const uint32_t target_block = data->get<uint32_t>() % blocks_.size();
const auto break_types = blocks_[target_block];
Generate(VectorOf(break_types), data);
Generate(kWasmI32, data);
builder_->EmitWithI32V(
kExprBrIf, static_cast<uint32_t>(blocks_.size()) - 1 - target_block);
auto return_type = wanted_type == ValueType::kStmt
? std::vector<ValueType>{}
: std::vector<ValueType>{ValueType(wanted_type)};
ConsumeAndGenerate(break_types, return_type, data);
}
// TODO(eholk): make this function constexpr once gcc supports it
static uint8_t max_alignment(WasmOpcode memop) {
switch (memop) {
case kExprS128LoadMem:
case kExprS128StoreMem:
return 4;
case kExprI64LoadMem:
case kExprF64LoadMem:
case kExprI64StoreMem:
case kExprF64StoreMem:
case kExprI64AtomicStore:
case kExprI64AtomicLoad:
case kExprI64AtomicAdd:
case kExprI64AtomicSub:
case kExprI64AtomicAnd:
case kExprI64AtomicOr:
case kExprI64AtomicXor:
case kExprI64AtomicExchange:
case kExprI64AtomicCompareExchange:
case kExprI16x8Load8x8S:
case kExprI16x8Load8x8U:
case kExprI32x4Load16x4S:
case kExprI32x4Load16x4U:
case kExprI64x2Load32x2S:
case kExprI64x2Load32x2U:
case kExprS64x2LoadSplat:
return 3;
case kExprI32LoadMem:
case kExprI64LoadMem32S:
case kExprI64LoadMem32U:
case kExprF32LoadMem:
case kExprI32StoreMem:
case kExprI64StoreMem32:
case kExprF32StoreMem:
case kExprI32AtomicStore:
case kExprI64AtomicStore32U:
case kExprI32AtomicLoad:
case kExprI64AtomicLoad32U:
case kExprI32AtomicAdd:
case kExprI32AtomicSub:
case kExprI32AtomicAnd:
case kExprI32AtomicOr:
case kExprI32AtomicXor:
case kExprI32AtomicExchange:
case kExprI32AtomicCompareExchange:
case kExprI64AtomicAdd32U:
case kExprI64AtomicSub32U:
case kExprI64AtomicAnd32U:
case kExprI64AtomicOr32U:
case kExprI64AtomicXor32U:
case kExprI64AtomicExchange32U:
case kExprI64AtomicCompareExchange32U:
case kExprS32x4LoadSplat:
return 2;
case kExprI32LoadMem16S:
case kExprI32LoadMem16U:
case kExprI64LoadMem16S:
case kExprI64LoadMem16U:
case kExprI32StoreMem16:
case kExprI64StoreMem16:
case kExprI32AtomicStore16U:
case kExprI64AtomicStore16U:
case kExprI32AtomicLoad16U:
case kExprI64AtomicLoad16U:
case kExprI32AtomicAdd16U:
case kExprI32AtomicSub16U:
case kExprI32AtomicAnd16U:
case kExprI32AtomicOr16U:
case kExprI32AtomicXor16U:
case kExprI32AtomicExchange16U:
case kExprI32AtomicCompareExchange16U:
case kExprI64AtomicAdd16U:
case kExprI64AtomicSub16U:
case kExprI64AtomicAnd16U:
case kExprI64AtomicOr16U:
case kExprI64AtomicXor16U:
case kExprI64AtomicExchange16U:
case kExprI64AtomicCompareExchange16U:
case kExprS16x8LoadSplat:
return 1;
case kExprI32LoadMem8S:
case kExprI32LoadMem8U:
case kExprI64LoadMem8S:
case kExprI64LoadMem8U:
case kExprI32StoreMem8:
case kExprI64StoreMem8:
case kExprI32AtomicStore8U:
case kExprI64AtomicStore8U:
case kExprI32AtomicLoad8U:
case kExprI64AtomicLoad8U:
case kExprI32AtomicAdd8U:
case kExprI32AtomicSub8U:
case kExprI32AtomicAnd8U:
case kExprI32AtomicOr8U:
case kExprI32AtomicXor8U:
case kExprI32AtomicExchange8U:
case kExprI32AtomicCompareExchange8U:
case kExprI64AtomicAdd8U:
case kExprI64AtomicSub8U:
case kExprI64AtomicAnd8U:
case kExprI64AtomicOr8U:
case kExprI64AtomicXor8U:
case kExprI64AtomicExchange8U:
case kExprI64AtomicCompareExchange8U:
case kExprS8x16LoadSplat:
return 0;
default:
return 0;
}
}
template <WasmOpcode memory_op, ValueType::Kind... arg_types>
void memop(DataRange* data) {
const uint8_t align = data->get<uint8_t>() % (max_alignment(memory_op) + 1);
const uint32_t offset = data->get<uint32_t>();
// Generate the index and the arguments, if any.
Generate<ValueType::kI32, arg_types...>(data);
if (WasmOpcodes::IsPrefixOpcode(static_cast<WasmOpcode>(memory_op >> 8))) {
DCHECK(memory_op >> 8 == kAtomicPrefix || memory_op >> 8 == kSimdPrefix);
builder_->EmitWithPrefix(memory_op);
} else {
builder_->Emit(memory_op);
}
builder_->EmitU32V(align);
builder_->EmitU32V(offset);
}
template <WasmOpcode Op, ValueType::Kind... Args>
void atomic_op(DataRange* data) {
const uint8_t align = data->get<uint8_t>() % (max_alignment(Op) + 1);
const uint32_t offset = data->get<uint32_t>();
Generate<Args...>(data);
builder_->EmitWithPrefix(Op);
builder_->EmitU32V(align);
builder_->EmitU32V(offset);
}
template <WasmOpcode Op, ValueType::Kind... Args>
void op_with_prefix(DataRange* data) {
Generate<Args...>(data);
builder_->EmitWithPrefix(Op);
}
template <WasmOpcode Op, int lanes, ValueType::Kind... Args>
void simd_lane_op(DataRange* data) {
Generate<Args...>(data);
builder_->EmitWithPrefix(Op);
builder_->EmitByte(data->get<byte>() % lanes);
}
void simd_shuffle(DataRange* data) {
Generate<ValueType::kS128, ValueType::kS128>(data);
builder_->EmitWithPrefix(kExprS8x16Shuffle);
for (int i = 0; i < kSimd128Size; i++) {
builder_->EmitByte(static_cast<uint8_t>(data->get<byte>() % 32));
}
}
void drop(DataRange* data) {
Generate(GetValueType(data), data);
builder_->Emit(kExprDrop);
}
template <ValueType::Kind wanted_type>
void call(DataRange* data) {
call(data, ValueType(wanted_type));
}
void Convert(ValueType src, ValueType dst) {
auto idx = [](ValueType t) -> int {
switch (t.kind()) {
case ValueType::kI32:
return 0;
case ValueType::kI64:
return 1;
case ValueType::kF32:
return 2;
case ValueType::kF64:
return 3;
default:
UNREACHABLE();
}
};
static constexpr WasmOpcode kConvertOpcodes[] = {
// {i32, i64, f32, f64} -> i32
kExprNop, kExprI32ConvertI64, kExprI32SConvertF32, kExprI32SConvertF64,
// {i32, i64, f32, f64} -> i64
kExprI64SConvertI32, kExprNop, kExprI64SConvertF32, kExprI64SConvertF64,
// {i32, i64, f32, f64} -> f32
kExprF32SConvertI32, kExprF32SConvertI64, kExprNop, kExprF32ConvertF64,
// {i32, i64, f32, f64} -> f64
kExprF64SConvertI32, kExprF64SConvertI64, kExprF64ConvertF32, kExprNop};
int arr_idx = idx(dst) << 2 | idx(src);
builder_->Emit(kConvertOpcodes[arr_idx]);
}
void ConvertOrGenerate(ValueType src, ValueType dst, DataRange* data) {
if (src == dst) return;
if (src == kWasmStmt && dst != kWasmStmt) {
Generate(dst, data);
} else if (dst == kWasmStmt && src != kWasmStmt) {
builder_->Emit(kExprDrop);
} else {
Convert(src, dst);
}
}
void call(DataRange* data, ValueType wanted_type) {
int func_index = data->get<uint8_t>() % functions_.size();
FunctionSig* sig = functions_[func_index];
// Generate arguments.
for (size_t i = 0; i < sig->parameter_count(); ++i) {
Generate(sig->GetParam(i), data);
}
// Emit call.
builder_->EmitWithU32V(kExprCallFunction, func_index);
if (sig->return_count() == 0 && wanted_type != kWasmStmt) {
// The call did not generate a value. Thus just generate it here.
Generate(wanted_type, data);
return;
}
if (wanted_type == kWasmStmt) {
// The call did generate values, but we did not want one.
for (size_t i = 0; i < sig->return_count(); ++i) {
builder_->Emit(kExprDrop);
}
return;
}
std::vector<ValueType> return_types(sig->returns().begin(),
sig->returns().end());
auto wanted_types = wanted_type == kWasmStmt
? std::vector<ValueType>{}
: std::vector<ValueType>{wanted_type};
ConsumeAndGenerate(return_types, wanted_types, data);
}
struct Var {
uint32_t index;
ValueType type = kWasmStmt;
Var() = default;
Var(uint32_t index, ValueType type) : index(index), type(type) {}
bool is_valid() const { return type != kWasmStmt; }
};
Var GetRandomLocal(DataRange* data) {
uint32_t num_params =
static_cast<uint32_t>(builder_->signature()->parameter_count());
uint32_t num_locals = static_cast<uint32_t>(locals_.size());
if (num_params + num_locals == 0) return {};
uint32_t index = data->get<uint8_t>() % (num_params + num_locals);
ValueType type = index < num_params ? builder_->signature()->GetParam(index)
: locals_[index - num_params];
return {index, type};
}
template <ValueType::Kind wanted_type>
void local_op(DataRange* data, WasmOpcode opcode) {
Var local = GetRandomLocal(data);
// If there are no locals and no parameters, just generate any value (if a
// value is needed), or do nothing.
if (!local.is_valid()) {
if (wanted_type == ValueType::kStmt) return;
return Generate<wanted_type>(data);
}
if (opcode != kExprLocalGet) Generate(local.type, data);
builder_->EmitWithU32V(opcode, local.index);
if (wanted_type != ValueType::kStmt && local.type.kind() != wanted_type) {
Convert(local.type, ValueType(wanted_type));
}
}
template <ValueType::Kind wanted_type>
void get_local(DataRange* data) {
static_assert(wanted_type != ValueType::kStmt, "illegal type");
local_op<wanted_type>(data, kExprLocalGet);
}
void set_local(DataRange* data) {
local_op<ValueType::kStmt>(data, kExprLocalSet);
}
template <ValueType::Kind wanted_type>
void tee_local(DataRange* data) {
local_op<wanted_type>(data, kExprLocalTee);
}
template <size_t num_bytes>
void i32_const(DataRange* data) {
builder_->EmitI32Const(data->get<int32_t, num_bytes>());
}
template <size_t num_bytes>
void i64_const(DataRange* data) {
builder_->EmitI64Const(data->get<int64_t, num_bytes>());
}
Var GetRandomGlobal(DataRange* data, bool ensure_mutable) {
uint32_t index;
if (ensure_mutable) {
if (mutable_globals_.empty()) return {};
index = mutable_globals_[data->get<uint8_t>() % mutable_globals_.size()];
} else {
if (globals_.empty()) return {};
index = data->get<uint8_t>() % globals_.size();
}
ValueType type = globals_[index];
return {index, type};
}
template <ValueType::Kind wanted_type>
void global_op(DataRange* data) {
constexpr bool is_set = wanted_type == ValueType::kStmt;
Var global = GetRandomGlobal(data, is_set);
// If there are no globals, just generate any value (if a value is needed),
// or do nothing.
if (!global.is_valid()) {
if (wanted_type == ValueType::kStmt) return;
return Generate<wanted_type>(data);
}
if (is_set) Generate(global.type, data);
builder_->EmitWithU32V(is_set ? kExprGlobalSet : kExprGlobalGet,
global.index);
if (!is_set && global.type.kind() != wanted_type) {
Convert(global.type, ValueType(wanted_type));
}
}
template <ValueType::Kind wanted_type>
void get_global(DataRange* data) {
static_assert(wanted_type != ValueType::kStmt, "illegal type");
global_op<wanted_type>(data);
}
template <ValueType::Kind select_type>
void select_with_type(DataRange* data) {
static_assert(select_type != ValueType::kStmt, "illegal type for select");
Generate<select_type, select_type, ValueType::kI32>(data);
// num_types is always 1.
uint8_t num_types = 1;
builder_->EmitWithU8U8(kExprSelectWithType, num_types,
ValueType(select_type).value_type_code());
}
void set_global(DataRange* data) { global_op<ValueType::kStmt>(data); }
template <ValueType::Kind... Types>
void sequence(DataRange* data) {
Generate<Types...>(data);
}
void current_memory(DataRange* data) {
builder_->EmitWithU8(kExprMemorySize, 0);
}
void grow_memory(DataRange* data);
using GenerateFn = void (WasmGenerator::*const)(DataRange*);
template <size_t N>
void GenerateOneOf(GenerateFn (&alternatives)[N], DataRange* data) {
static_assert(N < std::numeric_limits<uint8_t>::max(),
"Too many alternatives. Use a bigger type if needed.");
const auto which = data->get<uint8_t>();
GenerateFn alternate = alternatives[which % N];
(this->*alternate)(data);
}
struct GeneratorRecursionScope {
explicit GeneratorRecursionScope(WasmGenerator* gen) : gen(gen) {
++gen->recursion_depth;
DCHECK_LE(gen->recursion_depth, kMaxRecursionDepth);
}
~GeneratorRecursionScope() {
DCHECK_GT(gen->recursion_depth, 0);
--gen->recursion_depth;
}
WasmGenerator* gen;
};
public:
WasmGenerator(WasmFunctionBuilder* fn,
const std::vector<FunctionSig*>& functions,
const std::vector<ValueType>& globals,
const std::vector<uint8_t>& mutable_globals, DataRange* data)
: builder_(fn),
functions_(functions),
globals_(globals),
mutable_globals_(mutable_globals) {
FunctionSig* sig = fn->signature();
blocks_.emplace_back();
for (size_t i = 0; i < sig->return_count(); ++i) {
blocks_.back().push_back(sig->GetReturn(i));
}
constexpr uint32_t kMaxLocals = 32;
locals_.resize(data->get<uint8_t>() % kMaxLocals);
for (ValueType& local : locals_) {
local = GetValueType(data);
fn->AddLocal(local);
}
}
void Generate(ValueType type, DataRange* data);
template <ValueType::Kind T>
void Generate(DataRange* data);
template <ValueType::Kind T1, ValueType::Kind T2, ValueType::Kind... Ts>
void Generate(DataRange* data) {
// TODO(clemensb): Implement a more even split.
auto first_data = data->split();
Generate<T1>(&first_data);
Generate<T2, Ts...>(data);
}
std::vector<ValueType> GenerateTypes(DataRange* data);
void Generate(Vector<const ValueType> types, DataRange* data);
void ConsumeAndGenerate(const std::vector<ValueType>& parameter_types,
const std::vector<ValueType>& return_types,
DataRange* data);
private:
WasmFunctionBuilder* builder_;
std::vector<std::vector<ValueType>> blocks_;
const std::vector<FunctionSig*>& functions_;
std::vector<ValueType> locals_;
std::vector<ValueType> globals_;
std::vector<uint8_t> mutable_globals_; // indexes into {globals_}.
uint32_t recursion_depth = 0;
static constexpr uint32_t kMaxRecursionDepth = 64;
bool recursion_limit_reached() {
return recursion_depth >= kMaxRecursionDepth;
}
};
template <>
void WasmGenerator::block<ValueType::kStmt>(DataRange* data) {
block({}, {}, data);
}
template <>
void WasmGenerator::loop<ValueType::kStmt>(DataRange* data) {
loop({}, {}, data);
}
template <>
void WasmGenerator::Generate<ValueType::kStmt>(DataRange* data) {
GeneratorRecursionScope rec_scope(this);
if (recursion_limit_reached() || data->size() == 0) return;
constexpr GenerateFn alternatives[] = {
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kStmt>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kStmt,
ValueType::kStmt, ValueType::kStmt>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kStmt,
ValueType::kStmt, ValueType::kStmt,
ValueType::kStmt, ValueType::kStmt,
ValueType::kStmt, ValueType::kStmt>,
&WasmGenerator::block<ValueType::kStmt>,
&WasmGenerator::loop<ValueType::kStmt>,
&WasmGenerator::if_<ValueType::kStmt, kIf>,
&WasmGenerator::if_<ValueType::kStmt, kIfElse>,
&WasmGenerator::br,
&WasmGenerator::br_if<ValueType::kStmt>,
&WasmGenerator::memop<kExprI32StoreMem, ValueType::kI32>,
&WasmGenerator::memop<kExprI32StoreMem8, ValueType::kI32>,
&WasmGenerator::memop<kExprI32StoreMem16, ValueType::kI32>,
&WasmGenerator::memop<kExprI64StoreMem, ValueType::kI64>,
&WasmGenerator::memop<kExprI64StoreMem8, ValueType::kI64>,
&WasmGenerator::memop<kExprI64StoreMem16, ValueType::kI64>,
&WasmGenerator::memop<kExprI64StoreMem32, ValueType::kI64>,
&WasmGenerator::memop<kExprF32StoreMem, ValueType::kF32>,
&WasmGenerator::memop<kExprF64StoreMem, ValueType::kF64>,
&WasmGenerator::memop<kExprI32AtomicStore, ValueType::kI32>,
&WasmGenerator::memop<kExprI32AtomicStore8U, ValueType::kI32>,
&WasmGenerator::memop<kExprI32AtomicStore16U, ValueType::kI32>,
&WasmGenerator::memop<kExprI64AtomicStore, ValueType::kI64>,
&WasmGenerator::memop<kExprI64AtomicStore8U, ValueType::kI64>,
&WasmGenerator::memop<kExprI64AtomicStore16U, ValueType::kI64>,
&WasmGenerator::memop<kExprI64AtomicStore32U, ValueType::kI64>,
&WasmGenerator::memop<kExprS128StoreMem, ValueType::kS128>,
&WasmGenerator::drop,
&WasmGenerator::call<ValueType::kStmt>,
&WasmGenerator::set_local,
&WasmGenerator::set_global};
GenerateOneOf(alternatives, data);
}
template <>
void WasmGenerator::Generate<ValueType::kI32>(DataRange* data) {
GeneratorRecursionScope rec_scope(this);
if (recursion_limit_reached() || data->size() <= 1) {
builder_->EmitI32Const(data->get<uint32_t>());
return;
}
constexpr GenerateFn alternatives[] = {
&WasmGenerator::i32_const<1>,
&WasmGenerator::i32_const<2>,
&WasmGenerator::i32_const<3>,
&WasmGenerator::i32_const<4>,
&WasmGenerator::sequence<ValueType::kI32, ValueType::kStmt>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kI32>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kI32,
ValueType::kStmt>,
&WasmGenerator::op<kExprI32Eqz, ValueType::kI32>,
&WasmGenerator::op<kExprI32Eq, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Ne, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32LtS, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32LtU, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32GeS, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32GeU, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI64Eqz, ValueType::kI64>,
&WasmGenerator::op<kExprI64Eq, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Ne, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64LtS, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64LtU, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64GeS, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64GeU, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprF32Eq, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32Ne, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32Lt, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32Ge, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF64Eq, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64Ne, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64Lt, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64Ge, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprI32Add, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Sub, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Mul, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32DivS, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32DivU, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32RemS, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32RemU, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32And, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Ior, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Xor, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Shl, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32ShrU, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32ShrS, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Ror, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Rol, ValueType::kI32, ValueType::kI32>,
&WasmGenerator::op<kExprI32Clz, ValueType::kI32>,
&WasmGenerator::op<kExprI32Ctz, ValueType::kI32>,
&WasmGenerator::op<kExprI32Popcnt, ValueType::kI32>,
&WasmGenerator::op<kExprI32ConvertI64, ValueType::kI64>,
&WasmGenerator::op<kExprI32SConvertF32, ValueType::kF32>,
&WasmGenerator::op<kExprI32UConvertF32, ValueType::kF32>,
&WasmGenerator::op<kExprI32SConvertF64, ValueType::kF64>,
&WasmGenerator::op<kExprI32UConvertF64, ValueType::kF64>,
&WasmGenerator::op<kExprI32ReinterpretF32, ValueType::kF32>,
&WasmGenerator::op_with_prefix<kExprI32SConvertSatF32, ValueType::kF32>,
&WasmGenerator::op_with_prefix<kExprI32UConvertSatF32, ValueType::kF32>,
&WasmGenerator::op_with_prefix<kExprI32SConvertSatF64, ValueType::kF64>,
&WasmGenerator::op_with_prefix<kExprI32UConvertSatF64, ValueType::kF64>,
&WasmGenerator::block<ValueType::kI32>,
&WasmGenerator::loop<ValueType::kI32>,
&WasmGenerator::if_<ValueType::kI32, kIfElse>,
&WasmGenerator::br_if<ValueType::kI32>,
&WasmGenerator::memop<kExprI32LoadMem>,
&WasmGenerator::memop<kExprI32LoadMem8S>,
&WasmGenerator::memop<kExprI32LoadMem8U>,
&WasmGenerator::memop<kExprI32LoadMem16S>,
&WasmGenerator::memop<kExprI32LoadMem16U>,
&WasmGenerator::memop<kExprI32AtomicLoad>,
&WasmGenerator::memop<kExprI32AtomicLoad8U>,
&WasmGenerator::memop<kExprI32AtomicLoad16U>,
&WasmGenerator::atomic_op<kExprI32AtomicAdd, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicSub, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicAnd, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicOr, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicXor, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicExchange, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicCompareExchange, ValueType::kI32,
ValueType::kI32, ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicAdd8U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicSub8U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicAnd8U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicOr8U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicXor8U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicExchange8U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicCompareExchange8U,
ValueType::kI32, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicAdd16U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicSub16U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicAnd16U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicOr16U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicXor16U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicExchange16U, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::atomic_op<kExprI32AtomicCompareExchange16U,
ValueType::kI32, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprV8x16AnyTrue, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprV16x8AnyTrue, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprV32x4AnyTrue, ValueType::kS128>,
&WasmGenerator::simd_lane_op<kExprI8x16ExtractLaneS, 16,
ValueType::kS128>,
&WasmGenerator::simd_lane_op<kExprI8x16ExtractLaneU, 16,
ValueType::kS128>,
&WasmGenerator::simd_lane_op<kExprI16x8ExtractLaneS, 8, ValueType::kS128>,
&WasmGenerator::simd_lane_op<kExprI16x8ExtractLaneU, 8, ValueType::kS128>,
&WasmGenerator::simd_lane_op<kExprI32x4ExtractLane, 4, ValueType::kS128>,
&WasmGenerator::current_memory,
&WasmGenerator::grow_memory,
&WasmGenerator::get_local<ValueType::kI32>,
&WasmGenerator::tee_local<ValueType::kI32>,
&WasmGenerator::get_global<ValueType::kI32>,
&WasmGenerator::op<kExprSelect, ValueType::kI32, ValueType::kI32,
ValueType::kI32>,
&WasmGenerator::select_with_type<ValueType::kI32>,
&WasmGenerator::call<ValueType::kI32>};
GenerateOneOf(alternatives, data);
}
template <>
void WasmGenerator::Generate<ValueType::kI64>(DataRange* data) {
GeneratorRecursionScope rec_scope(this);
if (recursion_limit_reached() || data->size() <= 1) {
builder_->EmitI64Const(data->get<int64_t>());
return;
}
constexpr GenerateFn alternatives[] = {
&WasmGenerator::i64_const<1>,
&WasmGenerator::i64_const<2>,
&WasmGenerator::i64_const<3>,
&WasmGenerator::i64_const<4>,
&WasmGenerator::i64_const<5>,
&WasmGenerator::i64_const<6>,
&WasmGenerator::i64_const<7>,
&WasmGenerator::i64_const<8>,
&WasmGenerator::sequence<ValueType::kI64, ValueType::kStmt>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kI64>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kI64,
ValueType::kStmt>,
&WasmGenerator::op<kExprI64Add, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Sub, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Mul, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64DivS, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64DivU, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64RemS, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64RemU, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64And, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Ior, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Xor, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Shl, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64ShrU, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64ShrS, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Ror, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Rol, ValueType::kI64, ValueType::kI64>,
&WasmGenerator::op<kExprI64Clz, ValueType::kI64>,
&WasmGenerator::op<kExprI64Ctz, ValueType::kI64>,
&WasmGenerator::op<kExprI64Popcnt, ValueType::kI64>,
&WasmGenerator::op_with_prefix<kExprI64SConvertSatF32, ValueType::kF32>,
&WasmGenerator::op_with_prefix<kExprI64UConvertSatF32, ValueType::kF32>,
&WasmGenerator::op_with_prefix<kExprI64SConvertSatF64, ValueType::kF64>,
&WasmGenerator::op_with_prefix<kExprI64UConvertSatF64, ValueType::kF64>,
&WasmGenerator::block<ValueType::kI64>,
&WasmGenerator::loop<ValueType::kI64>,
&WasmGenerator::if_<ValueType::kI64, kIfElse>,
&WasmGenerator::br_if<ValueType::kI64>,
&WasmGenerator::memop<kExprI64LoadMem>,
&WasmGenerator::memop<kExprI64LoadMem8S>,
&WasmGenerator::memop<kExprI64LoadMem8U>,
&WasmGenerator::memop<kExprI64LoadMem16S>,
&WasmGenerator::memop<kExprI64LoadMem16U>,
&WasmGenerator::memop<kExprI64LoadMem32S>,
&WasmGenerator::memop<kExprI64LoadMem32U>,
&WasmGenerator::memop<kExprI64AtomicLoad>,
&WasmGenerator::memop<kExprI64AtomicLoad8U>,
&WasmGenerator::memop<kExprI64AtomicLoad16U>,
&WasmGenerator::memop<kExprI64AtomicLoad32U>,
&WasmGenerator::atomic_op<kExprI64AtomicAdd, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicSub, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicAnd, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicOr, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicXor, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicExchange, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicCompareExchange, ValueType::kI32,
ValueType::kI64, ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicAdd8U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicSub8U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicAnd8U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicOr8U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicXor8U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicExchange8U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicCompareExchange8U,
ValueType::kI32, ValueType::kI64,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicAdd16U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicSub16U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicAnd16U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicOr16U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicXor16U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicExchange16U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicCompareExchange16U,
ValueType::kI32, ValueType::kI64,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicAdd32U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicSub32U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicAnd32U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicOr32U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicXor32U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicExchange32U, ValueType::kI32,
ValueType::kI64>,
&WasmGenerator::atomic_op<kExprI64AtomicCompareExchange32U,
ValueType::kI32, ValueType::kI64,
ValueType::kI64>,
&WasmGenerator::simd_lane_op<kExprI64x2ExtractLane, 2, ValueType::kS128>,
&WasmGenerator::get_local<ValueType::kI64>,
&WasmGenerator::tee_local<ValueType::kI64>,
&WasmGenerator::get_global<ValueType::kI64>,
&WasmGenerator::op<kExprSelect, ValueType::kI64, ValueType::kI64,
ValueType::kI32>,
&WasmGenerator::select_with_type<ValueType::kI64>,
&WasmGenerator::call<ValueType::kI64>};
GenerateOneOf(alternatives, data);
}
template <>
void WasmGenerator::Generate<ValueType::kF32>(DataRange* data) {
GeneratorRecursionScope rec_scope(this);
if (recursion_limit_reached() || data->size() <= sizeof(float)) {
builder_->EmitF32Const(data->get<float>());
return;
}
constexpr GenerateFn alternatives[] = {
&WasmGenerator::sequence<ValueType::kF32, ValueType::kStmt>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kF32>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kF32,
ValueType::kStmt>,
&WasmGenerator::op<kExprF32Abs, ValueType::kF32>,
&WasmGenerator::op<kExprF32Neg, ValueType::kF32>,
&WasmGenerator::op<kExprF32Ceil, ValueType::kF32>,
&WasmGenerator::op<kExprF32Floor, ValueType::kF32>,
&WasmGenerator::op<kExprF32Trunc, ValueType::kF32>,
&WasmGenerator::op<kExprF32NearestInt, ValueType::kF32>,
&WasmGenerator::op<kExprF32Sqrt, ValueType::kF32>,
&WasmGenerator::op<kExprF32Add, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32Sub, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32Mul, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32Div, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32Min, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32Max, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32CopySign, ValueType::kF32, ValueType::kF32>,
&WasmGenerator::op<kExprF32SConvertI32, ValueType::kI32>,
&WasmGenerator::op<kExprF32UConvertI32, ValueType::kI32>,
&WasmGenerator::op<kExprF32SConvertI64, ValueType::kI64>,
&WasmGenerator::op<kExprF32UConvertI64, ValueType::kI64>,
&WasmGenerator::op<kExprF32ConvertF64, ValueType::kF64>,
&WasmGenerator::op<kExprF32ReinterpretI32, ValueType::kI32>,
&WasmGenerator::block<ValueType::kF32>,
&WasmGenerator::loop<ValueType::kF32>,
&WasmGenerator::if_<ValueType::kF32, kIfElse>,
&WasmGenerator::br_if<ValueType::kF32>,
&WasmGenerator::memop<kExprF32LoadMem>,
&WasmGenerator::simd_lane_op<kExprF32x4ExtractLane, 4, ValueType::kS128>,
&WasmGenerator::get_local<ValueType::kF32>,
&WasmGenerator::tee_local<ValueType::kF32>,
&WasmGenerator::get_global<ValueType::kF32>,
&WasmGenerator::op<kExprSelect, ValueType::kF32, ValueType::kF32,
ValueType::kI32>,
&WasmGenerator::select_with_type<ValueType::kF32>,
&WasmGenerator::call<ValueType::kF32>};
GenerateOneOf(alternatives, data);
}
template <>
void WasmGenerator::Generate<ValueType::kF64>(DataRange* data) {
GeneratorRecursionScope rec_scope(this);
if (recursion_limit_reached() || data->size() <= sizeof(double)) {
builder_->EmitF64Const(data->get<double>());
return;
}
constexpr GenerateFn alternatives[] = {
&WasmGenerator::sequence<ValueType::kF64, ValueType::kStmt>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kF64>,
&WasmGenerator::sequence<ValueType::kStmt, ValueType::kF64,
ValueType::kStmt>,
&WasmGenerator::op<kExprF64Abs, ValueType::kF64>,
&WasmGenerator::op<kExprF64Neg, ValueType::kF64>,
&WasmGenerator::op<kExprF64Ceil, ValueType::kF64>,
&WasmGenerator::op<kExprF64Floor, ValueType::kF64>,
&WasmGenerator::op<kExprF64Trunc, ValueType::kF64>,
&WasmGenerator::op<kExprF64NearestInt, ValueType::kF64>,
&WasmGenerator::op<kExprF64Sqrt, ValueType::kF64>,
&WasmGenerator::op<kExprF64Add, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64Sub, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64Mul, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64Div, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64Min, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64Max, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64CopySign, ValueType::kF64, ValueType::kF64>,
&WasmGenerator::op<kExprF64SConvertI32, ValueType::kI32>,
&WasmGenerator::op<kExprF64UConvertI32, ValueType::kI32>,
&WasmGenerator::op<kExprF64SConvertI64, ValueType::kI64>,
&WasmGenerator::op<kExprF64UConvertI64, ValueType::kI64>,
&WasmGenerator::op<kExprF64ConvertF32, ValueType::kF32>,
&WasmGenerator::op<kExprF64ReinterpretI64, ValueType::kI64>,
&WasmGenerator::block<ValueType::kF64>,
&WasmGenerator::loop<ValueType::kF64>,
&WasmGenerator::if_<ValueType::kF64, kIfElse>,
&WasmGenerator::br_if<ValueType::kF64>,
&WasmGenerator::memop<kExprF64LoadMem>,
&WasmGenerator::simd_lane_op<kExprF64x2ExtractLane, 2, ValueType::kS128>,
&WasmGenerator::get_local<ValueType::kF64>,
&WasmGenerator::tee_local<ValueType::kF64>,
&WasmGenerator::get_global<ValueType::kF64>,
&WasmGenerator::op<kExprSelect, ValueType::kF64, ValueType::kF64,
ValueType::kI32>,
&WasmGenerator::select_with_type<ValueType::kF64>,
&WasmGenerator::call<ValueType::kF64>};
GenerateOneOf(alternatives, data);
}
template <>
void WasmGenerator::Generate<ValueType::kS128>(DataRange* data) {
GeneratorRecursionScope rec_scope(this);
if (recursion_limit_reached() || data->size() <= sizeof(int32_t)) {
// TODO(v8:8460): v128.const is not implemented yet, and we need a way to
// "bottom-out", so use a splat to generate this.
builder_->EmitI32Const(data->get<int32_t>());
builder_->EmitWithPrefix(kExprI8x16Splat);
return;
}
constexpr GenerateFn alternatives[] = {
&WasmGenerator::simd_lane_op<kExprI8x16ReplaceLane, 16, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::simd_lane_op<kExprI16x8ReplaceLane, 8, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::simd_lane_op<kExprI32x4ReplaceLane, 4, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::simd_lane_op<kExprI64x2ReplaceLane, 2, ValueType::kS128,
ValueType::kI64>,
&WasmGenerator::simd_lane_op<kExprF32x4ReplaceLane, 4, ValueType::kS128,
ValueType::kF32>,
&WasmGenerator::simd_lane_op<kExprF64x2ReplaceLane, 2, ValueType::kS128,
ValueType::kF64>,
&WasmGenerator::op_with_prefix<kExprI8x16Splat, ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI8x16Eq, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16Ne, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16LtS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16LtU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16GtS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16GtU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16LeS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16LeU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16GeS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16GeU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16Abs, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16Neg, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16Shl, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI8x16ShrS, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI8x16ShrU, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI8x16Add, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16AddSaturateS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16AddSaturateU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16Sub, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16SubSaturateS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16SubSaturateU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16MinS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16MinU, ValueType::kS128,
ValueType::kS128>,
// I8x16Mul is prototyped but not in the proposal, thus omitted here.
&WasmGenerator::op_with_prefix<kExprI8x16MaxS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16MaxU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16RoundingAverageU,
ValueType::kS128, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8Splat, ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI16x8Eq, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8Ne, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8LtS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8LtU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8GtS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8GtU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8LeS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8LeU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8GeS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8GeU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8Abs, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8Neg, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8Shl, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI16x8ShrS, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI16x8ShrU, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI16x8Add, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8AddSaturateS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8AddSaturateU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8Sub, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8SubSaturateS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8SubSaturateU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8Mul, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8MinS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8MinU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8MaxS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8MaxU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8RoundingAverageU,
ValueType::kS128, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4Splat, ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI32x4Eq, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4Ne, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4LtS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4LtU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4GtS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4GtU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4LeS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4LeU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4GeS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4GeU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4Abs, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4Neg, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4Shl, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI32x4ShrS, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI32x4ShrU, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI32x4Add, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4Sub, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4Mul, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4MinS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4MinU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4MaxS, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4MaxU, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI64x2Splat, ValueType::kI64>,
&WasmGenerator::op_with_prefix<kExprI64x2Neg, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI64x2Shl, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI64x2ShrS, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI64x2ShrU, ValueType::kS128,
ValueType::kI32>,
&WasmGenerator::op_with_prefix<kExprI64x2Add, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI64x2Sub, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI64x2Mul, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Splat, ValueType::kF32>,
&WasmGenerator::op_with_prefix<kExprF32x4Eq, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Ne, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Lt, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Gt, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Le, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Ge, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Abs, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Neg, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Sqrt, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Add, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Sub, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Mul, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Div, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Min, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4Max, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Splat, ValueType::kF64>,
&WasmGenerator::op_with_prefix<kExprF64x2Eq, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Ne, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Lt, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Gt, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Le, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Ge, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Abs, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Neg, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Sqrt, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Add, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Sub, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Mul, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Div, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Min, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF64x2Max, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4SConvertF32x4, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4UConvertF32x4, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4SConvertI32x4, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprF32x4UConvertI32x4, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16SConvertI16x8, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI8x16UConvertI16x8, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8SConvertI32x4, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8UConvertI32x4, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8SConvertI8x16Low,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8SConvertI8x16High,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8UConvertI8x16Low,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI16x8UConvertI8x16High,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4SConvertI16x8Low,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4SConvertI16x8High,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4UConvertI16x8Low,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprI32x4UConvertI16x8High,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprS128Not, ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprS128And, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprS128AndNot, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprS128Or, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprS128Xor, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::op_with_prefix<kExprS128Select, ValueType::kS128,
ValueType::kS128, ValueType::kS128>,
&WasmGenerator::simd_shuffle,
&WasmGenerator::op_with_prefix<kExprS8x16Swizzle, ValueType::kS128,
ValueType::kS128>,
&WasmGenerator::memop<kExprS128LoadMem>,
&WasmGenerator::memop<kExprI16x8Load8x8S>,
&WasmGenerator::memop<kExprI16x8Load8x8U>,
&WasmGenerator::memop<kExprI32x4Load16x4S>,
&WasmGenerator::memop<kExprI32x4Load16x4U>,
&WasmGenerator::memop<kExprI64x2Load32x2S>,
&WasmGenerator::memop<kExprI64x2Load32x2U>,
&WasmGenerator::memop<kExprS8x16LoadSplat>,
&WasmGenerator::memop<kExprS16x8LoadSplat>,
&WasmGenerator::memop<kExprS32x4LoadSplat>,
&WasmGenerator::memop<kExprS64x2LoadSplat>};
GenerateOneOf(alternatives, data);
}
void WasmGenerator::grow_memory(DataRange* data) {
Generate<ValueType::kI32>(data);
builder_->EmitWithU8(kExprMemoryGrow, 0);
}
void WasmGenerator::Generate(ValueType type, DataRange* data) {
switch (type.kind()) {
case ValueType::kStmt:
return Generate<ValueType::kStmt>(data);
case ValueType::kI32:
return Generate<ValueType::kI32>(data);
case ValueType::kI64:
return Generate<ValueType::kI64>(data);
case ValueType::kF32:
return Generate<ValueType::kF32>(data);
case ValueType::kF64:
return Generate<ValueType::kF64>(data);
case ValueType::kS128:
return Generate<ValueType::kS128>(data);
default:
UNREACHABLE();
}
}
std::vector<ValueType> WasmGenerator::GenerateTypes(DataRange* data) {
std::vector<ValueType> types;
int num_params = int{data->get<uint8_t>()} % (kMaxParameters + 1);
for (int i = 0; i < num_params; ++i) {
types.push_back(GetValueType(data));
}
return types;
}
void WasmGenerator::Generate(Vector<const ValueType> types, DataRange* data) {
// Maybe emit a multi-value block with the expected return type. Use a
// non-default value to indicate block generation to avoid recursion when we
// reach the end of the data.
bool generate_block = data->get<uint8_t>() % 32 == 1;
if (generate_block) {
GeneratorRecursionScope rec_scope(this);
if (!recursion_limit_reached()) {
const auto param_types = GenerateTypes(data);
Generate(VectorOf(param_types), data);
any_block(param_types, {types.begin(), types.end()}, data);
return;
}
}
if (types.size() == 0) {
Generate(kWasmStmt, data);
return;
}
if (types.size() == 1) {
Generate(types[0], data);
return;
}
// Split the types in two halves and recursively generate each half.
// Each half is non empty to ensure termination.
size_t split_index = data->get<uint8_t>() % (types.size() - 1) + 1;
Vector<const ValueType> lower_half(types.begin(), split_index);
Vector<const ValueType> upper_half(types.begin() + split_index,
types.size() - split_index);
DataRange first_range = data->split();
Generate(lower_half, &first_range);
Generate(upper_half, data);
}
// Emit code to match an arbitrary signature.
void WasmGenerator::ConsumeAndGenerate(
const std::vector<ValueType>& param_types,
const std::vector<ValueType>& return_types, DataRange* data) {
if (param_types.size() == 0) {
Generate(VectorOf(return_types), data);
return;
}
// Keep exactly one of the parameters on the stack with a combination of drops
// and selects, convert this value to the first return type, and generate the
// remaining types.
// TODO(thibaudm): Improve this strategy to potentially generate any sequence
// of instructions matching the given signature.
size_t return_index = data->get<uint8_t>() % param_types.size();
for (size_t i = param_types.size() - 1; i > return_index; --i) {
builder_->Emit(kExprDrop);
}
for (size_t i = return_index; i > 0; --i) {
Convert(param_types[i], param_types[i - 1]);
builder_->EmitI32Const(0);
builder_->Emit(kExprSelect);
}
if (return_types.empty()) {
builder_->Emit(kExprDrop);
} else {
Convert(param_types[0], return_types[0]);
Generate(VectorOf(return_types) + 1, data);
}
}
FunctionSig* GenerateSig(Zone* zone, DataRange* data) {
// Generate enough parameters to spill some to the stack.
int num_params = int{data->get<uint8_t>()} % (kMaxParameters + 1);
int num_returns = int{data->get<uint8_t>()} % (kMaxReturns + 1);
FunctionSig::Builder builder(zone, num_returns, num_params);
for (int i = 0; i < num_returns; ++i) builder.AddReturn(GetValueType(data));
for (int i = 0; i < num_params; ++i) builder.AddParam(GetValueType(data));
return builder.Build();
}
} // namespace
class WasmCompileFuzzer : public WasmExecutionFuzzer {
bool GenerateModule(
Isolate* isolate, Zone* zone, Vector<const uint8_t> data,
ZoneBuffer* buffer, int32_t* num_args,
std::unique_ptr<WasmValue[]>* interpreter_args,
std::unique_ptr<Handle<Object>[]>* compiler_args) override {
TestSignatures sigs;
WasmModuleBuilder builder(zone);
DataRange range(data);
std::vector<FunctionSig*> function_signatures;
function_signatures.push_back(sigs.i_iii());
static_assert(kMaxFunctions >= 1, "need min. 1 function");
int num_functions = 1 + (range.get<uint8_t>() % kMaxFunctions);
for (int i = 1; i < num_functions; ++i) {
function_signatures.push_back(GenerateSig(zone, &range));
}
int num_globals = range.get<uint8_t>() % (kMaxGlobals + 1);
std::vector<ValueType> globals;
std::vector<uint8_t> mutable_globals;
globals.reserve(num_globals);
mutable_globals.reserve(num_globals);
for (int i = 0; i < num_globals; ++i) {
ValueType type = GetValueType(&range);
// 1/8 of globals are immutable.
const bool mutability = (range.get<uint8_t>() % 8) != 0;
builder.AddGlobal(type, mutability, WasmInitExpr());
globals.push_back(type);
if (mutability) mutable_globals.push_back(static_cast<uint8_t>(i));
}
for (int i = 0; i < num_functions; ++i) {
DataRange function_range =
i == num_functions - 1 ? std::move(range) : range.split();
FunctionSig* sig = function_signatures[i];
WasmFunctionBuilder* f = builder.AddFunction(sig);
WasmGenerator gen(f, function_signatures, globals, mutable_globals,
&function_range);
Vector<const ValueType> return_types(sig->returns().begin(),
sig->return_count());
gen.Generate(return_types, &function_range);
f->Emit(kExprEnd);
if (i == 0) builder.AddExport(CStrVector("main"), f);
}
builder.SetMaxMemorySize(32);
// We enable shared memory to be able to test atomics.
builder.SetHasSharedMemory();
builder.WriteTo(buffer);
*num_args = 3;
interpreter_args->reset(
new WasmValue[3]{WasmValue(1), WasmValue(2), WasmValue(3)});
compiler_args->reset(new Handle<Object>[3] {
handle(Smi::FromInt(1), isolate), handle(Smi::FromInt(2), isolate),
handle(Smi::FromInt(3), isolate)
});
return true;
}
};
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
constexpr bool require_valid = true;
EXPERIMENTAL_FLAG_SCOPE(reftypes);
WasmCompileFuzzer().FuzzWasmModule({data, size}, require_valid);
return 0;
}
} // namespace fuzzer
} // namespace wasm
} // namespace internal
} // namespace v8
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