1// go-optimize.cc -- Go frontend optimizer flags.
2
3// Copyright 2011 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7#include "go-system.h"
8
9#include "go-c.h"
10#include "go-optimize.h"
11
12namespace {
13
14// The list of optimizations.
15
16Go_optimize* optimizations;
17
18} // End empty namespace.
19
20// Create a new optimization.
21
22Go_optimize::Go_optimize(const char* name)
23  : next_(optimizations), name_(name), is_enabled_(false)
24{
25  optimizations = this;
26}
27
28// Enable an optimization by name.
29
30bool
31Go_optimize::enable_by_name(const char* name)
32{
33  bool is_all = strcmp(name, "all") == 0;
34  bool found = false;
35  for (Go_optimize* p = optimizations; p != NULL; p = p->next_)
36    {
37      if (is_all || strcmp(name, p->name_) == 0)
38	{
39	  p->is_enabled_ = true;
40	  found = true;
41	}
42    }
43  return found;
44}
45
46// Enable an optimization.  Return 1 if this is a real name, 0 if not.
47
48GO_EXTERN_C
49int
50go_enable_optimize(const char* name)
51{
52  return Go_optimize::enable_by_name(name) ? 1 : 0;
53}
54