Line data    Source code

       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              : 
      22         4646 : Go_optimize::Go_optimize(const char* name, bool enabled)
      23         4646 :   : next_(optimizations), name_(name), is_enabled_(enabled)
      24              : {
      25         4646 :   optimizations = this;
      26         4646 : }
      27              : 
      28              : // Enable an optimization by name.
      29              : 
      30              : bool
      31            0 : Go_optimize::enable_by_name(const char* name, bool value)
      32              : {
      33            0 :   bool is_all = strcmp(name, "all") == 0;
      34            0 :   bool found = false;
      35            0 :   for (Go_optimize* p = optimizations; p != NULL; p = p->next_)
      36              :     {
      37            0 :       if (is_all || strcmp(name, p->name_) == 0)
      38              :         {
      39            0 :           p->is_enabled_ = value;
      40            0 :           found = true;
      41              :         }
      42              :     }
      43            0 :   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
      50            0 : go_enable_optimize(const char* name, int value)
      51              : {
      52            0 :   return Go_optimize::enable_by_name(name, (bool)value) ? 1 : 0;
      53              : }