[Bug c/22289] New: problem in gimp downscaling routines when compiling with -mfpmath=sse

[mkrisch at yahoo dot com dot au]

i have entered a bug for gimp (#309170) in which gimp would crash when i opened
an image of the same resolution as my current screen.  in that situation, gimp
automatically downscales the image to fit on the screen.

when gimp was compiled with -mfpmath=sse the crash would occur. on recompiling
without that option, gimp operates correctly.

the complete thread for the bug can be found at
http://bugzilla.gnome.org/show_bug.cgi?id=309170, however you can find the
details for my system and the compilation options below:

[ebuild   R   ] media-gfx/gimp-2.2.7-r1  -aalib (-altivec) -debug +doc
+gimpprint +gtkhtml -hardened +jpeg +lcms -mmx +mng +png +python -scanner -smp
-sse +svg +tiff +wmf 0 kB

linux kernel 2.6.12

emerge --info

Portage 2.0.51.19 (default-linux/x86, gcc-3.4.4, glibc-2.3.5-r0, 2.6.12-love1 i686)
=================================================================
System uname: 2.6.12-love1 i686 Intel(R) Pentium(R) M processor 1500MHz
Gentoo Base System version 1.6.12
Python:              dev-lang/python-2.3.5,dev-lang/python-2.4.1-r1 [2.4.1 (#1,
Jun 20 2005, 17:52:12)]
dev-lang/python:     2.3.5, 2.4.1-r1
sys-apps/sandbox:    [Not Present]
sys-devel/autoconf:  2.13, 2.59-r6
sys-devel/automake:  1.5, 1.8.5-r3, 1.6.3, 1.9.5, 1.7.9-r1, 1.4_p6
sys-devel/binutils:  2.15.92.0.2-r10
sys-devel/libtool:   1.5.16
virtual/os-headers:  2.6.8.1-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-Os -march=pentium-m -mmmx -msse -msse2 -fforce-addr -ftracer
-mfpmath=sse -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config
/usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config
/usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/
/usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/
/usr/share/texmf/xdvi/ /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/env.d"
CXXFLAGS="-Os -march=pentium-m -mmmx -msse -msse2 -fforce-addr -ftracer
-mfpmath=sse -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms strict"
GENTOO_MIRRORS="ftp://mirror.pacific.net.au/linux/Gentoo
http://mirror.isp.net.au/pub/gentoo/ ftp://mirror.isp.net.au/pub/gentoo/"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 X a52 aac acpi alsa avi bash-completion berkdb bitmap-fonts bonobo
bzip2 cairo cdr crypt cups curl dbus divx4linux dvd eds emboss encode esd exif
fam fbcon foomaticdb gd gdbm gif gnome gpm gstreamer gtk gtk2 guile hal howl
imagemagick imlib java jpeg ldap libg++ libwww mad mikmod mmx mono motif mozilla
mp3 mpeg mysql ncurses nptl offensive ogg oggvorbis opengl oss pam pcmcia pda
pdflib perl pic png python qt quicktime readline samba sdl spell sqlite sse sse2
ssl svg tcpd tetex theora tiff truetype truetype-fonts type1-fonts usb v4l
vorbis xinerama xml2 xv xvid zlib video_cards_radeon userland_GNU kernel_linux
elibc_glibc"
Unset:  ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS

-- 
           Summary: problem in gimp downscaling routines when compiling with
                    -mfpmath=sse
           Product: gcc
           Version: 3.4.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mkrisch at yahoo dot com dot au
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22289