/usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/timevar.h is in gcc-5-plugin-dev 5.5.0-12ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | /* Timing variables for measuring compiler performance.
Copyright (C) 2000-2015 Free Software Foundation, Inc.
Contributed by Alex Samuel <samuel@codesourcery.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_TIMEVAR_H
#define GCC_TIMEVAR_H
/* Timing variables are used to measure elapsed time in various
portions of the compiler. Each measures elapsed user, system, and
wall-clock time, as appropriate to and supported by the host
system.
Timing variables are defined using the DEFTIMEVAR macro in
timevar.def. Each has an enumeral identifier, used when referring
to the timing variable in code, and a character string name.
Timing variables can be used in two ways:
- On the timing stack, using timevar_push and timevar_pop.
Timing variables may be pushed onto the stack; elapsed time is
attributed to the topmost timing variable on the stack. When
another variable is pushed on, the previous topmost variable is
`paused' until the pushed variable is popped back off.
- As a standalone timer, using timevar_start and timevar_stop.
All time elapsed between the two calls is attributed to the
variable.
*/
/* This structure stores the various varieties of time that can be
measured. Times are stored in seconds. The time may be an
absolute time or a time difference; in the former case, the time
base is undefined, except that the difference between two times
produces a valid time difference. */
struct timevar_time_def
{
/* User time in this process. */
double user;
/* System time (if applicable for this host platform) in this
process. */
double sys;
/* Wall clock time. */
double wall;
/* Garbage collector memory. */
size_t ggc_mem;
};
/* An enumeration of timing variable identifiers. Constructed from
the contents of timevar.def. */
#define DEFTIMEVAR(identifier__, name__) \
identifier__,
typedef enum
{
TV_NONE,
#include "timevar.def"
TIMEVAR_LAST
}
timevar_id_t;
#undef DEFTIMEVAR
/* True if timevars should be used. In GCC, this happens with
the -ftime-report flag. */
extern bool timevar_enable;
/* Total amount of memory allocated by garbage collector. */
extern size_t timevar_ggc_mem_total;
extern void timevar_init (void);
extern void timevar_push_1 (timevar_id_t);
extern void timevar_pop_1 (timevar_id_t);
extern void timevar_start (timevar_id_t);
extern void timevar_stop (timevar_id_t);
extern bool timevar_cond_start (timevar_id_t);
extern void timevar_cond_stop (timevar_id_t, bool);
extern void timevar_print (FILE *);
/* Provided for backward compatibility. */
static inline void
timevar_push (timevar_id_t tv)
{
if (timevar_enable)
timevar_push_1 (tv);
}
static inline void
timevar_pop (timevar_id_t tv)
{
if (timevar_enable)
timevar_pop_1 (tv);
}
// This is a simple timevar wrapper class that pushes a timevar in its
// constructor and pops the timevar in its destructor.
class auto_timevar
{
public:
auto_timevar (timevar_id_t tv)
: m_tv (tv)
{
timevar_push (m_tv);
}
~auto_timevar ()
{
timevar_pop (m_tv);
}
private:
// Private to disallow copies.
auto_timevar (const auto_timevar &);
timevar_id_t m_tv;
};
extern void print_time (const char *, long);
#endif /* ! GCC_TIMEVAR_H */
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