Mercurial > hg > CbC > CbC_gcc
annotate gcc/timevar.h @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* Timing variables for measuring compiler performance. |
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2 Copyright (C) 2000, 2003, 2004, 2005, 2007, 2009 |
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3 Free Software Foundation, Inc. |
| 0 | 4 Contributed by Alex Samuel <samuel@codesourcery.com> |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by | |
| 10 the Free Software Foundation; either version 3, or (at your option) | |
| 11 any later version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 16 License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 #ifndef GCC_TIMEVAR_H | |
| 23 #define GCC_TIMEVAR_H | |
| 24 | |
| 25 /* Timing variables are used to measure elapsed time in various | |
| 26 portions of the compiler. Each measures elapsed user, system, and | |
| 27 wall-clock time, as appropriate to and supported by the host | |
| 28 system. | |
| 29 | |
| 30 Timing variables are defined using the DEFTIMEVAR macro in | |
| 31 timevar.def. Each has an enumeral identifier, used when referring | |
| 32 to the timing variable in code, and a character string name. | |
| 33 | |
| 34 Timing variables can be used in two ways: | |
| 35 | |
| 36 - On the timing stack, using timevar_push and timevar_pop. | |
| 37 Timing variables may be pushed onto the stack; elapsed time is | |
| 38 attributed to the topmost timing variable on the stack. When | |
| 39 another variable is pushed on, the previous topmost variable is | |
| 40 `paused' until the pushed variable is popped back off. | |
| 41 | |
| 42 - As a standalone timer, using timevar_start and timevar_stop. | |
| 43 All time elapsed between the two calls is attributed to the | |
| 44 variable. | |
| 45 */ | |
| 46 | |
| 47 /* This structure stores the various varieties of time that can be | |
| 48 measured. Times are stored in seconds. The time may be an | |
| 49 absolute time or a time difference; in the former case, the time | |
| 50 base is undefined, except that the difference between two times | |
| 51 produces a valid time difference. */ | |
| 52 | |
| 53 struct timevar_time_def | |
| 54 { | |
| 55 /* User time in this process. */ | |
| 56 double user; | |
| 57 | |
| 58 /* System time (if applicable for this host platform) in this | |
| 59 process. */ | |
| 60 double sys; | |
| 61 | |
| 62 /* Wall clock time. */ | |
| 63 double wall; | |
| 64 | |
| 65 /* Garbage collector memory. */ | |
| 66 unsigned ggc_mem; | |
| 67 }; | |
| 68 | |
| 69 /* An enumeration of timing variable identifiers. Constructed from | |
| 70 the contents of timevar.def. */ | |
| 71 | |
| 72 #define DEFTIMEVAR(identifier__, name__) \ | |
| 73 identifier__, | |
| 74 typedef enum | |
| 75 { | |
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76 TV_NONE, |
| 0 | 77 #include "timevar.def" |
| 78 TIMEVAR_LAST | |
| 79 } | |
| 80 timevar_id_t; | |
| 81 #undef DEFTIMEVAR | |
| 82 | |
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83 /* True if timevars should be used. In GCC, this happens with |
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84 the -ftime-report flag. */ |
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85 extern bool timevar_enable; |
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86 |
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87 /* Total amount of memory allocated by garbage collector. */ |
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88 extern size_t timevar_ggc_mem_total; |
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89 |
| 0 | 90 /* Execute the sequence: timevar_pop (TV), return (E); */ |
| 91 #define POP_TIMEVAR_AND_RETURN(TV, E) do { timevar_pop (TV); return (E); }while(0) | |
| 92 | |
| 93 extern void timevar_init (void); | |
| 94 extern void timevar_push_1 (timevar_id_t); | |
| 95 extern void timevar_pop_1 (timevar_id_t); | |
| 96 extern void timevar_start (timevar_id_t); | |
| 97 extern void timevar_stop (timevar_id_t); | |
| 98 extern void timevar_print (FILE *); | |
| 99 | |
| 100 /* Provided for backward compatibility. */ | |
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101 static inline void |
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102 timevar_push (timevar_id_t tv) |
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103 { |
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104 if (timevar_enable) |
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105 timevar_push_1 (tv); |
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106 } |
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107 |
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108 static inline void |
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109 timevar_pop (timevar_id_t tv) |
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110 { |
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111 if (timevar_enable) |
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112 timevar_pop_1 (tv); |
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113 } |
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114 |
| 0 | 115 extern void print_time (const char *, long); |
| 116 | |
| 117 #endif /* ! GCC_TIMEVAR_H */ |