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[Bug tree-optimization/46590] long compile time with -O2 and many loops
- From: "tkoenig at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 21 Nov 2010 18:49:23 +0000
- Subject: [Bug tree-optimization/46590] long compile time with -O2 and many loops
- Auto-submitted: auto-generated
- References: <bug-46590-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46590
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |memory-hog
--- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2010-11-21 18:49:20 UTC ---
Yes, this is a memory hog as well:
time ~/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/f951 -O2 gener-max.f90
MAIN__ main
Analyzing compilation unit
{GC 183863k -> 103486k}Performing interprocedural optimizations
<*free_lang_data> <visibility> <early_local_cleanups> {GC 156854k -> 151699k}
<whole-program> <ipa-profile> <cp> <inline> <pure-const> <static-var>Assembling
functions:
MAIN__ {GC 281998k -> 189095k} {GC 393064k -> 341214k} {GC 554029k -> 337458k}
{GC 477071k -> 337199k} {GC 557246k -> 473808k}
f951: out of memory allocating 968552 bytes after a total of 4310765568 bytes
real 150m58.614s
user 150m16.083s
sys 0m11.924s
ig25@linux-fd1f:~/Krempel/Dep-c>