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