------- Comment #49 from hubicka at gcc dot gnu dot org 2009-02-22 13:23
-------
Similarly as in PR c/12245 we build a tons of unnecesary CONVERT_EXPRs.
Avoiding this by same patch as attached to PR c/12245 brings garbage donwn
by 54% from:
cp/lex.c:511 (build_lang_decl) 94176: 0.0% 116432:
0.0% 826264: 0.1% 98952: 0.0% 4247
toplev.c:1538 (realloc_for_line_map) 0: 0.0% 1310720:
0.1% 1316864: 0.1% 555008: 0.1% 7
ggc-common.c:187 (ggc_calloc) 134478488:12.0% 188112:
0.0% 134356240:14.6% 18504: 0.0% 2913
cp/decl.c:4683 (reshape_init_array_1) 0: 0.0%
374786120:20.5% 373090856:40.6% 211006352:43.0% 22
cp/parser.c:14709 (cp_parser_initializer_list) 373090856:33.3%
374786120:20.5% 88: 0.0% 211006360:43.0% 23
tree.c:1004 (build_int_cst_wide) 8640: 0.0% 0:
0.0% 402626592:43.8% 0: 0.0% 8388234
convert.c:752 (convert_to_integer) 603950328:54.0% 0:
0.0% 0: 0.0% 67105592:13.7% 8388199
Total 1118959027 1826757514
919671455 491189724 16977745
source location Garbage Freed
Leak Overhead Times
to:
cp/lex.c:511 (build_lang_decl) 94176: 0.0% 116432:
0.0% 826264: 0.1% 98952: 0.0% 4247
toplev.c:1538 (realloc_for_line_map) 0: 0.0% 1310720:
0.1% 1316864: 0.1% 555008: 0.1% 7
ggc-common.c:187 (ggc_calloc) 134478488:26.1% 188112:
0.0% 134356240:14.6% 18504: 0.0% 2913
cp/decl.c:4683 (reshape_init_array_1) 0: 0.0%
374786120:20.5% 373090856:40.6% 211006352:49.8% 22
cp/parser.c:14709 (cp_parser_initializer_list) 373090856:72.4%
374786120:20.5% 88: 0.0% 211006360:49.8% 23
tree.c:1004 (build_int_cst_wide) 8640: 0.0% 0:
0.0% 402626592:43.8% 0: 0.0% 8388234
Total 515008771 1826757514
919671455 424084140 8589547
source location Garbage Freed
Leak Overhead Times
so saving about 0.5GB of RAM and speeding up correspondingly too. We can still
improve but this seems low hanging fruit.
Honza
--
hubicka at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14179
