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
12 namespace {
13
14 // The list of optimizations.
15
16 Go_optimize* optimizations;
17
18 } // End empty namespace.
19
20 // Create a new optimization.
21
Go_optimize(const char * name,bool enabled)22 Go_optimize::Go_optimize(const char* name, bool enabled)
23 : next_(optimizations), name_(name), is_enabled_(enabled)
24 {
25 optimizations = this;
26 }
27
28 // Enable an optimization by name.
29
30 bool
enable_by_name(const char * name,bool value)31 Go_optimize::enable_by_name(const char* name, bool value)
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_ = value;
40 found = true;
41 }
42 }
43 return found;
44 }
45
46 // Enable/disable an optimization. Return 1 if this is a real name, 0 if not.
47
48 GO_EXTERN_C
49 int
go_enable_optimize(const char * name,int value)50 go_enable_optimize(const char* name, int value)
51 {
52 return Go_optimize::enable_by_name(name, (bool)value) ? 1 : 0;
53 }
54