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/*
* Copyright 2016 WebAssembly Community Group participants
*
* 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.
*/
#include "binary-reader-opcnt.h"
#include <cassert>
#include <cinttypes>
#include <cstdarg>
#include <cstdint>
#include <cstdio>
#include "binary-reader-nop.h"
#include "common.h"
namespace wabt {
namespace {
class BinaryReaderOpcnt : public BinaryReaderNop {
public:
explicit BinaryReaderOpcnt(OpcntData* data);
Result OnOpcode(Opcode opcode) override;
Result OnI32ConstExpr(uint32_t value) override;
Result OnGetLocalExpr(Index local_index) override;
Result OnSetLocalExpr(Index local_index) override;
Result OnTeeLocalExpr(Index local_index) override;
Result OnLoadExpr(Opcode opcode,
uint32_t alignment_log2,
Address offset) override;
Result OnStoreExpr(Opcode opcode,
uint32_t alignment_log2,
Address offset) override;
private:
OpcntData* opcnt_data;
};
static Result AddIntCounterValue(IntCounterVector* vec, intmax_t value) {
for (IntCounter& counter : *vec) {
if (counter.value == value) {
++counter.count;
return Result::Ok;
}
}
vec->emplace_back(value, 1);
return Result::Ok;
}
static Result AddIntPairCounterValue(IntPairCounterVector* vec,
intmax_t first,
intmax_t second) {
for (IntPairCounter& pair : *vec) {
if (pair.first == first && pair.second == second) {
++pair.count;
return Result::Ok;
}
}
vec->emplace_back(first, second, 1);
return Result::Ok;
}
BinaryReaderOpcnt::BinaryReaderOpcnt(OpcntData* data) : opcnt_data(data) {}
Result BinaryReaderOpcnt::OnOpcode(Opcode opcode) {
IntCounterVector& opcnt_vec = opcnt_data->opcode_vec;
while (opcode >= opcnt_vec.size()) {
opcnt_vec.emplace_back(opcnt_vec.size(), 0);
}
++opcnt_vec[opcode].count;
return Result::Ok;
}
Result BinaryReaderOpcnt::OnI32ConstExpr(uint32_t value) {
return AddIntCounterValue(&opcnt_data->i32_const_vec,
static_cast<int32_t>(value));
}
Result BinaryReaderOpcnt::OnGetLocalExpr(Index local_index) {
return AddIntCounterValue(&opcnt_data->get_local_vec, local_index);
}
Result BinaryReaderOpcnt::OnSetLocalExpr(Index local_index) {
return AddIntCounterValue(&opcnt_data->set_local_vec, local_index);
}
Result BinaryReaderOpcnt::OnTeeLocalExpr(Index local_index) {
return AddIntCounterValue(&opcnt_data->tee_local_vec, local_index);
}
Result BinaryReaderOpcnt::OnLoadExpr(Opcode opcode,
uint32_t alignment_log2,
Address offset) {
if (opcode == Opcode::I32Load) {
return AddIntPairCounterValue(&opcnt_data->i32_load_vec, alignment_log2,
offset);
}
return Result::Ok;
}
Result BinaryReaderOpcnt::OnStoreExpr(Opcode opcode,
uint32_t alignment_log2,
Address offset) {
if (opcode == Opcode::I32Store) {
return AddIntPairCounterValue(&opcnt_data->i32_store_vec, alignment_log2,
offset);
}
return Result::Ok;
}
} // namespace
Result read_binary_opcnt(const void* data,
size_t size,
const struct ReadBinaryOptions* options,
OpcntData* opcnt_data) {
BinaryReaderOpcnt reader(opcnt_data);
return read_binary(data, size, &reader, options);
}
} // namespace wabt
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