[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2014-02-16 Thread jackie.rosen at hushmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43419 Jackie Rosen changed: What|Removed |Added CC||jackie.rosen at hushmail dot com --- Comm

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-25 Thread hjl dot tools at gmail dot com
-- hjl dot tools at gmail dot com changed: What|Removed |Added Known to fail||4.3.4 Known to work||4.4.4 4.5.0

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-22 Thread mikpe at it dot uu dot se
--- Comment #9 from mikpe at it dot uu dot se 2010-03-22 16:02 --- This bug also affects 4.3 branch. The upstream patch applies Ok and fixes it. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43419

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-22 Thread jakub at gcc dot gnu dot org
--- 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

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-18 Thread matz at gcc dot gnu dot org
--- Comment #7 from matz at gcc dot gnu dot org 2010-03-18 16:47 --- Fixed. -- matz at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-18 Thread matz at gcc dot gnu dot org
--- Comment #6 from matz at gcc dot gnu dot org 2010-03-18 16:08 --- Subject: Bug 43419 Author: matz Date: Thu Mar 18 16:07:53 2010 New Revision: 157543 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157543 Log: PR middle-end/43419 * builtins.c (expand_builtin_po

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-18 Thread rguenth at gcc dot gnu dot org
--- Comment #5 from rguenth at gcc dot gnu dot org 2010-03-18 15:31 --- Looks like we need to guard this with HONOR_SIGNED_ZEROS. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added ---

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-18 Thread matz at gcc dot gnu dot org
--- Comment #4 from matz at gcc dot gnu dot org 2010-03-18 14:48 --- I checked, and these and similar transformations are always guarded by flag_unsafe_math_optimizations, so we should be fine, unless I missed a case of course. If you notice one, please create a bug report. -- http

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-18 Thread dominiq at lps dot ens dot fr
--- Comment #3 from dominiq at lps dot ens dot fr 2010-03-18 14:41 --- While you are looking at this part, you may have to check that a similar problem does not exist when converting x*sqrt(x) to pow(w,1.5) and so on. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43419

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-18 Thread matz at gcc dot gnu dot org
--- Comment #2 from matz at gcc dot gnu dot org 2010-03-18 14:35 --- Mine. -- matz at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gc

[Bug middle-end/43419] gcc replaces pow(x, 0.5) by sqrt(x), invalid when x is -0

2010-03-18 Thread vincent at vinc17 dot org
--- Comment #1 from vincent at vinc17 dot org 2010-03-18 14:33 --- If I understand correctly, the bug appears with: r119248 | rguenth | 2006-11-27 12:38:42 +0100 (Mon, 27 Nov 2006) | 10 lines 2006-11-27 Richard Guenther PR middle-end/25620 * builtins.c (expand_built