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From: "jakub at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0 Date: Mon, 22 Mar 2010 14:58:00 -0000 [thread overview] Message-ID: <20100322145826.4332.qmail@sourceware.org> (raw) In-Reply-To: <bug-43419-6373@http.gcc.gnu.org/bugzilla/> ------- Comment #8 from jakub at gcc dot gnu dot org 2010-03-22 14:58 ------- Subject: Bug 43419 Author: jakub Date: Mon Mar 22 14:58:00 2010 New Revision: 157631 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157631 Log: Backport from mainline: 2010-03-18 Michael Matz <matz@suse.de> PR middle-end/43419 * builtins.c (expand_builtin_pow): Don't transform pow(x, 0.5) into sqrt(x) if we need to preserve signed zeros. * gcc.dg/pr43419.c: New testcase. Added: branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr43419.c Modified: branches/gcc-4_4-branch/gcc/ChangeLog branches/gcc-4_4-branch/gcc/builtins.c branches/gcc-4_4-branch/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43419
next prev parent reply other threads:[~2010-03-22 14:58 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-03-18 14:08 [Bug middle-end/43419] New: " vincent at vinc17 dot org 2010-03-18 14:33 ` [Bug middle-end/43419] " vincent at vinc17 dot org 2010-03-18 14:35 ` matz at gcc dot gnu dot org 2010-03-18 14:42 ` dominiq at lps dot ens dot fr 2010-03-18 14:49 ` matz at gcc dot gnu dot org 2010-03-18 15:31 ` rguenth at gcc dot gnu dot org 2010-03-18 16:08 ` matz at gcc dot gnu dot org 2010-03-18 16:48 ` matz at gcc dot gnu dot org 2010-03-22 14:58 ` jakub at gcc dot gnu dot org [this message] 2010-03-22 16:02 ` mikpe at it dot uu dot se 2010-03-25 16:18 ` hjl dot tools at gmail dot com [not found] <bug-43419-4@http.gcc.gnu.org/bugzilla/> 2014-02-16 13:18 ` jackie.rosen at hushmail dot com
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