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[Bug target/19923] [4.0/4.1 Regression] openssl is slower when compiled with gcc 4.0 than 3.3
- From: "rakdver at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Nov 2005 13:35:15 -0000
- Subject: [Bug target/19923] [4.0/4.1 Regression] openssl is slower when compiled with gcc 4.0 than 3.3
- References: <bug-19923-6145@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #34 from rakdver at gcc dot gnu dot org 2005-11-17 13:35 -------
It behaves somewhat erratically on SPEC2000 (it increases the overall score,
but there are some significant regressions). And, it also causes us to produce
worse code for this testcase at the moment, due to a missunderstanding between
ivopts and fold; expression
(unsigned char) (signed char) (int) (ptr + 1B) - (unsigned char) ptr
is produced, and it is not folded to 1.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19923