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[Bug tree-optimization/43280] [4.5 Regression] gcc4.5 -m32 -O2: misoptimizes sha256!
- From: "krebbel at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Mar 2010 13:51:17 -0000
- Subject: [Bug tree-optimization/43280] [4.5 Regression] gcc4.5 -m32 -O2: misoptimizes sha256!
- References: <bug-43280-15165@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from krebbel at gcc dot gnu dot org 2010-03-11 13:51 -------
Subject: Bug 43280
Author: krebbel
Date: Thu Mar 11 13:51:00 2010
New Revision: 157386
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157386
Log:
2010-03-11 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
PR tree-optimization/43280
* tree-ssa-math-opts.c (find_bswap_1): Modify symbolic number
generation.
Move calculation of size out of the if branch.
(find_bswap): Modify compare number generation.
2010-03-11 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* gcc.dg/optimize-bswapdi-1.c: Add OpenSSL bswap variant.
* gcc.dg/pr43280.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/pr43280.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/optimize-bswapdi-1.c
trunk/gcc/tree-ssa-math-opts.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43280