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[Bug target/50182] Performance degradation from gcc 4.1 (x86_64)
- From: "oleg.smolsky at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 26 Aug 2011 00:48:02 +0000
- Subject: [Bug target/50182] Performance degradation from gcc 4.1 (x86_64)
- Auto-submitted: auto-generated
- References: <bug-50182-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50182
--- Comment #11 from Oleg Smolsky <oleg.smolsky at gmail dot com> 2011-08-26 00:48:02 UTC ---
Also, I have just built the same suite with GCC version 4.7 that came from
ftp://gcc.gnu.org/pub/gcc/snapshots/4.7-20110820/gcc-4.7-20110820.tar.bz2 and
the performance degradation remains:
gcc41:
0 "int8_t constant add" 1.35 sec 1185.19 M 1.00
gcc47:
0 "int8_t constant add" 2.37 sec 675.11 M 1.00
Note, these are original unmodified tests, not my digested derivatives