diff options
author | Akim Demaille <akim@epita.fr> | 2002-07-31 19:52:13 +0000 |
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committer | Akim Demaille <akim@epita.fr> | 2002-07-31 19:52:13 +0000 |
commit | 1509d42fcb8fb8a78d46f0c26b863cafd347bee5 (patch) | |
tree | 83776f737666704ea755a91ba479f34f67d7eb03 /lib/timevar.h | |
parent | 273a74fa89392c33ef4912036c290ad47e535da6 (diff) | |
download | bison-1509d42fcb8fb8a78d46f0c26b863cafd347bee5.tar.gz |
Steal GCC's --time-report support.
* lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
stolen/adjusted from GCC.
* m4/stage.m4: Remove time related checks.
* m4/timevar.m4: New.
* configure.in: Adjust.
* src/system.h: Adjust to using timevar.h.
* src/getargs.h, src/getargs.c: Support trace_time for
--trace=time.
* src/main.c (stage): Remove.
(main): Replace `stage' invocations with timevar calls.
* src/output.c: Insert pertinent timevar calls.
Diffstat (limited to 'lib/timevar.h')
-rw-r--r-- | lib/timevar.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/lib/timevar.h b/lib/timevar.h new file mode 100644 index 00000000..f0d2fd2a --- /dev/null +++ b/lib/timevar.h @@ -0,0 +1,91 @@ +/* Timing variables for measuring compiler performance. + Copyright (C) 2000 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 2, 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 COPYING. If not, write to the Free + Software Foundation, 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ + +#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. */ + float user; + + /* System time (if applicable for this host platform) in this + process. */ + float sys; + + /* Wall clock time. */ + float wall; +}; + +/* An enumeration of timing variable identifiers. Constructed from + the contents of timevar.def. */ + +#define DEFTIMEVAR(identifier__, name__) \ + identifier__, +typedef enum +{ +#include "timevar.def" + TIMEVAR_LAST +} +timevar_id_t; +#undef DEFTIMEVAR + +extern void init_timevar PARAMS ((void)); +extern void timevar_push PARAMS ((timevar_id_t)); +extern void timevar_pop PARAMS ((timevar_id_t)); +extern void timevar_start PARAMS ((timevar_id_t)); +extern void timevar_stop PARAMS ((timevar_id_t)); +extern void timevar_get PARAMS ((timevar_id_t, struct timevar_time_def *)); +extern void timevar_print PARAMS ((FILE *)); + +/* Provided for backward compatibility. */ +extern long get_run_time PARAMS ((void)); +extern void print_time PARAMS ((const char *, long)); + +#endif /* ! GCC_TIMEVAR_H */ |