blob: 0e289d52949786b24c110c07cfa554d1564b80c9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*
* Copyright 2019 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.
*/
//
// Write the module to binary, and load it from there. This is useful in
// testing to check for the effects of roundtripping in a single wasm-opt
// parameter.
//
#include "ir/module-utils.h"
#include "pass.h"
#include "wasm-binary.h"
#include "wasm.h"
namespace wasm {
struct RoundTrip : public Pass {
void run(Module* module) override {
BufferWithRandomAccess buffer;
// Save features, which would not otherwise make it through a round trip if
// the target features section has been stripped. We also need them in order
// to tell the builder which features to build with.
auto features = module->features;
// Write, clear, and read the module
WasmBinaryWriter(module, buffer).write();
ModuleUtils::clearModule(*module);
auto input = buffer.getAsChars();
WasmBinaryBuilder parser(*module, features, input);
parser.setDWARF(getPassOptions().debugInfo);
try {
parser.read();
} catch (ParseException& p) {
p.dump(std::cerr);
std::cerr << '\n';
Fatal() << "error in parsing wasm binary";
}
}
};
Pass* createRoundTripPass() { return new RoundTrip(); }
} // namespace wasm
|
