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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/40735] [4.3/4.4 regression] memory hog compiling big functions with -fPIE Date: Tue, 14 Jul 2009 11:31:00 -0000 [thread overview] Message-ID: <20090714113102.5774.qmail@sourceware.org> (raw) In-Reply-To: <bug-40735-11764@http.gcc.gnu.org/bugzilla/> ------- Comment #4 from rguenth at gcc dot gnu dot org 2009-07-14 11:31 ------- This is likely caused by the DF merge. There are numerous bugs about this already and nothing really can be done here. Btw, my numbers are rguenther@murzim:/tmp> ~/bin/maxmem2.sh gcc-4.4 -S -o /dev/null -g -fstack-protector -fPIE -Os test_node.i -std=gnu99 total: 744108 kB rguenther@murzim:/tmp> ~/bin/maxmem2.sh gcc-4.3 -S -o /dev/null -g -fstack-protector -fPIE -Os test_node.i -std=gnu99 total: 719836 kB rguenther@murzim:/tmp> ~/bin/maxmem2.sh gcc-4.2 -S -o /dev/null -g -fstack-protector -fPIE -Os test_node.i -std=gnu99 total: 459757 kB Thus not 1.5GB but 750MB vs 450MB. rguenther@murzim:/tmp> ~/bin/maxmem2.sh gcc-4.4 -S -o /dev/null -fPIE -Os test_node.i -std=gnu99 total: 743380 kB rguenther@murzim:/tmp> ~/bin/maxmem2.sh gcc-4.4 -S -o /dev/null -Os test_node.i -std=gnu99 total: 630756 kB the -fPIE effect itself is even less recognizable. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40735
next prev parent reply other threads:[~2009-07-14 11:31 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-07-13 19:37 [Bug target/40735] New: " doko at ubuntu dot com 2009-07-13 19:37 ` [Bug target/40735] " doko at ubuntu dot com 2009-07-14 9:21 ` rguenth at gcc dot gnu dot org 2009-07-14 10:31 ` doko at ubuntu dot com 2009-07-14 11:31 ` rguenth at gcc dot gnu dot org [this message] 2009-07-14 23:07 ` mikpe at it dot uu dot se 2009-07-14 23:10 ` pinskia at gcc dot gnu dot org 2009-07-14 23:33 ` mikpe at it dot uu dot se 2009-07-15 7:34 ` steven at gcc dot gnu dot org 2009-07-15 9:44 ` rguenth at gcc dot gnu dot org 2009-07-16 18:33 ` mikpe at it dot uu dot se 2009-07-22 21:57 ` [Bug target/40735] [4.3/4.4/4.5 Regression] " rguenth at gcc dot gnu dot org 2009-08-04 12:51 ` rguenth at gcc dot gnu dot org 2010-05-22 18:33 ` [Bug target/40735] [4.3/4.4/4.5/4.6 " rguenth at gcc dot gnu dot org
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