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// go-optimize.cc -- Go frontend optimizer flags.

// Copyright 2011 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

#include "go-system.h"

#include "go-c.h"

#include "go-optimize.h"

namespace {

// The list of optimizations.

Go_optimize* optimizations;

} // End empty namespace.

// Create a new optimization.

Go_optimize::Go_optimize(const char* name)

  : next_(optimizations), name_(name), is_enabled_(false)

{

  optimizations = this;

}

// Enable an optimization by name.

bool

Go_optimize::enable_by_name(const char* name)

{

  bool is_all = strcmp(name, "all") == 0;

  bool found = false;

  for (Go_optimize* p = optimizations; p != NULL; p = p->next_)

    {

      if (is_all || strcmp(name, p->name_) == 0)

        {

          p->is_enabled_ = true;

          found = true;

        }

    }

  return found;

}

// Enable an optimization.  Return 1 if this is a real name, 0 if not.

GO_EXTERN_C

int

go_enable_optimize(const char* name)

{

  return Go_optimize::enable_by_name(name) ? 1 : 0;

}