From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/timevar.h | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 gcc/timevar.h (limited to 'gcc/timevar.h') diff --git a/gcc/timevar.h b/gcc/timevar.h new file mode 100644 index 000000000..1df23300f --- /dev/null +++ b/gcc/timevar.h @@ -0,0 +1,117 @@ +/* Timing variables for measuring compiler performance. + Copyright (C) 2000, 2003, 2004, 2005, 2007, 2009, 2010 + Free Software Foundation, Inc. + Contributed by Alex Samuel + + 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 + . */ + +#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. */ + unsigned 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; + +/* Execute the sequence: timevar_pop (TV), return (E); */ +#define POP_TIMEVAR_AND_RETURN(TV, E) do { timevar_pop (TV); return (E); }while(0) + +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 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); +} + +extern void print_time (const char *, long); + +#endif /* ! GCC_TIMEVAR_H */ -- cgit v1.2.3