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* [Bug c/44563]  New: GCC uses a lot of RAM when compiling a large numbers of functions
@ 2010-06-17  4:10 jvoss at altsci dot com
  2010-06-17  4:14 ` [Bug tree-optimization/44563] " jvoss at altsci dot com
                   ` (3 more replies)
  0 siblings, 4 replies; 33+ messages in thread
From: jvoss at altsci dot com @ 2010-06-17  4:10 UTC (permalink / raw)
  To: gcc-bugs

When compiling a 5 MB C file with 65337 functions, gcc takes over 700 MB of ram
compiling the file to assembly. Files with fewer functions (32769 and 16385)
take exponentially less time. A workaround is to split the file into multiple c
files and compile into intermediate files seperately.

tinycc aka tcc takes 0.5 seconds to compile the same file.

I'd be happy to provide more information and justifications for such a large
number of functions, but I assume that the bug can be fixed without it.


-- 
           Summary: GCC uses a lot of RAM when compiling a large numbers of
                    functions
           Product: gcc
           Version: 4.3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jvoss at altsci dot com
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44563


^ permalink raw reply	[flat|nested] 33+ messages in thread
end of thread, other threads:[~2024-02-16 13:52 UTC | newest]

Thread overview: 33+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <bug-44563-4@http.gcc.gnu.org/bugzilla/>
2010-12-12 23:55 ` [Bug tree-optimization/44563] GCC uses a lot of RAM when compiling a large numbers of functions hubicka at gcc dot gnu.org
2010-12-13  0:58 ` hubicka at gcc dot gnu.org
2010-12-13  1:00 ` hubicka at gcc dot gnu.org
2010-12-13  1:07 ` hubicka at gcc dot gnu.org
2010-12-13  1:17 ` hubicka at gcc dot gnu.org
2010-12-13  1:47 ` hubicka at gcc dot gnu.org
2010-12-13 13:22 ` hubicka at gcc dot gnu.org
2010-12-17  0:08 ` hubicka at gcc dot gnu.org
2015-03-07  0:22 ` hubicka at gcc dot gnu.org
2015-03-09  9:36 ` rguenth at gcc dot gnu.org
2015-03-09 11:33 ` rguenth at gcc dot gnu.org
2015-03-09 15:26 ` rguenth at gcc dot gnu.org
2015-03-09 15:36 ` rguenth at gcc dot gnu.org
2015-03-10  4:55 ` hubicka at ucw dot cz
2015-03-10  8:26 ` rguenth at gcc dot gnu.org
2015-03-10  8:35 ` rguenther at suse dot de
2015-03-10 11:54 ` rguenth at gcc dot gnu.org
2015-03-10 12:03 ` rguenth at gcc dot gnu.org
2015-03-10 12:31 ` jakub at gcc dot gnu.org
2015-03-10 12:44 ` rguenth at gcc dot gnu.org
2015-03-10 12:51 ` rguenther at suse dot de
2015-03-10 13:19 ` rguenth at gcc dot gnu.org
2015-03-12 15:09 ` rguenth at gcc dot gnu.org
2015-03-13  8:43 ` [Bug ipa/44563] " rguenth at gcc dot gnu.org
2015-03-13  8:47 ` rguenth at gcc dot gnu.org
2015-03-13  8:53 ` rguenth at gcc dot gnu.org
2015-03-13  8:55 ` rguenth at gcc dot gnu.org
2015-03-16  0:07 ` hubicka at ucw dot cz
2024-02-16 13:52 ` rguenth at gcc dot gnu.org
2010-06-17  4:10 [Bug c/44563] New: " jvoss at altsci dot com
2010-06-17  4:14 ` [Bug tree-optimization/44563] " jvoss at altsci dot com
2010-06-17 10:37 ` rguenth at gcc dot gnu dot org
2010-06-17 10:45 ` rguenth at gcc dot gnu dot org
2010-06-17 12:28 ` jakub at gcc dot gnu dot org

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