github.com/kidsbmilk/gofronted_all@v0.0.0-20220701224323-6479d5976c5d/go/go-optimize.cc (about)

     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  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
    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
    50  go_enable_optimize(const char* name, int value)
    51  {
    52    return Go_optimize::enable_by_name(name, (bool)value) ? 1 : 0;
    53  }