transformer.cpp revision 3e5fbb6faf66488ba49c9d2396350ae567dba315 
1/*
2 * Copyright 2017, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "transformer.h"
18
19#include "module.h"
20
21namespace android {
22namespace spirit {
23
24Module *Transformer::run(Module *module, int *error) {
25  auto words = runAndSerialize(module, error);
26  return Deserialize<Module>(words);
27}
28
29std::vector<uint32_t> Transformer::runAndSerialize(Module *m, int *error) {
30  mModule = m;
31
32  // Since contents in the decoration or global section may change, transform
33  // and serialize the function definitions first.
34  mVisit = 0;
35  mShouldRecord = false;
36  mStream = mStreamFunctions.get();
37  m->accept(this);
38
39  // Record in the annotation section any new annotations added
40  m->consolidateAnnotations();
41
42  // After the functions are transformed, serialize the other sections to
43  // capture any changes made during the function transformation, and append
44  // the new words from function serialization.
45
46  mVisit = 1;
47  mShouldRecord = true;
48  mStream = mStreamFinal.get();
49
50  // TODO fix Module::accept() to have the header serialization code there
51  m->SerializeHeader(*mStream);
52  m->accept(this);
53
54  auto output = mStream->getWords();
55  auto functions = mStreamFunctions->getWords();
56  output.insert(output.end(), functions.begin(), functions.end());
57
58  if (error) {
59    *error = 0;
60  }
61
62  return output;
63}
64
65void Transformer::insert(Instruction *inst) {
66  // TODO: warn on nullptr inst
67  inst->Serialize(*mStream);
68}
69
70} // namespace spirit
71} // namespace android
72