When emerging gimp or netpbm with both -march=pentium-m and -ftree-vectorizer in CFLAGS, gcc 4.1.1 make a internal compiler error. This only happens if both flags are in there. netpbm error: image-proc.c: In function
When emerging gimp or netpbm with both -march=pentium-m and -ftree-vectorizer in CFLAGS, gcc 4.1.1 make a internal compiler error. This only happens if both flags are in there. netpbm error: image-proc.c: In function binarize: image-proc.c:335: error: unrecognizable insn: (insn 94 93 95 13 (set (reg:V16QI 98) (us_minus:V16QI (mem:V16QI (plus:SI (reg:SI 68 [ D.6188 ]) (reg:SI 74 [ vect_p.122 ])) [0 S16 A128]) (reg:V16QI 96))) -1 (nil) (nil)) image-proc.c:335: internal compiler error: in extract_insn, at recog.c:2084 Gimp error: maze.c: In function run: maze.c:276: error: unrecognizable insn: (insn 682 681 683 56 (set (reg:V16QI 369) (us_minus:V16QI (mem:V16QI (plus:SI (reg:SI 107 [ D.37560 ]) (reg:SI 121 [ vect_p.174 ])) [0 S16 A128]) (reg:V16QI 367))) -1 (nil) (nil)) maze.c:276: internal compiler error: in extract_insn, at recog.c:2084 # emerge -pv gimp These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] media-gfx/gimp-2.2.10 USE="doc jpeg lcms mmx mng png python sse svg tiff wmf -aalib -debug -gimpprint -gtkhtml -hardened -smp" 0 kB Total size of downloads: 0 kB # emerge -pv gimp These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] media-gfx/gimp-2.2.10 USE="doc jpeg lcms mmx mng png python sse svg tiff wmf -aalib -debug -gimpprint -gtkhtml -hardened -smp" 0 kB Total size of downloads: 0 kB # emerge --info Portage 2.1_rc3 (default-linux/x86/2006.0, gcc-4.1.1, glibc-2.4-r3, 2.6.16-gentoo-r8 i686) ================================================================= System uname: 2.6.16-gentoo-r8 i686 Intel(R) Pentium(R) M processor 1.80GHz Gentoo Base System version 1.12.0 ccache version 2.4 [enabled] dev-lang/python: 2.4.3-r1 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.4-r1 dev-util/confcache: 0.4.2-r1 sys-apps/sandbox: 1.2.18.1 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2 sys-devel/binutils: 2.16.1-r2 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r5 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -pipe -march=pentium-m -ftree-vectorize" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config /var/qmail/alias /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/texmf/web2c /usr/bin/startx /etc/env.d" CXXFLAGS="-O2 -pipe -march=pentium-m -ftree-vectorize" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache confcache distlocks keepwork metadata-transfer parallel-fetch sandbox sfperms strict userfetch userpriv usersandbox" GENTOO_MIRRORS="http://mirror.datapipe.net/gentoo http://mirrors.acm.cs.rpi.edu/gentoo/ http://gentoo.mirrors.pair.com/ http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" LANG="en_US.utf8" LC_ALL="en_US.utf8" LDFLAGS="-Wl,-O1" LINGUAS="en" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_EXTRA_OPTS="--timeout=180 --exclude-from=/etc/portage/rsync_excludes" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude='/distfiles' --exclude='/local' --exclude='/packages'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage" USE="x86 X a52 aac acl acpi aim alsa apache2 apm applet artworkextra asf async avahi bash-completion bitmap-fonts bonjour bzip2 cairo cdr chroot cli cracklib crypt css cups dbus dga dhcp djvu dmi doc dpms dri dts dvd dvdread dvi ecc eds effects encode esd evo evolution exif fam fastbuild fbcon ffmpeg firefox flac flash foomaticdb fortran gaim gd gdbm gencertdaily gif glibc-omitfp glitz glut gmp gnome gphoto2 gpm gstreamer gstreamer010 gtk gtk2 hal howl howl-compat hpn i8x0 icq idn imap imlib imlib2 inkjar innodb insecure-savers ipv6 isdnlog jabber java javascript jikes jpeg kdeenablefinal lcms libcaca libg++ libwww live lzo lzw mad matroska mdnsresponder-compat memlimit mhash mikmod mime ming mmx mmxext mng mono motif mozdevelop mozilla moznocompose moznoirc moznomail mp3 mpeg mpi mplayer mpm-worker msn musepack musicbrainz mysql mysqli nautilus ncurses network new-login nfs nls no-old-linux nodoc nogecko-sdk nosrc nptl nptlonly nsplugin ntfs offensive ogg openal opengl openssh oscar pam pcre pdf pdflib perl php pic png pnp pop pppd python qmail quicktime radiotap rar readline real reflection reiser4 reiserfs rtc samba sdl session silc smarty sockets speex spell spl sse sse2 ssl svg svga sysfs syslog sysvipc t1lib tcpd tetex tga theora threads tiff transcode truetype truetype-fonts type1 type1-fonts udev unicode usb userlocales utf8 v4l v4l2 vcd videos visualization vorbis widescreen wifi win32codecs wmf x264 xine xml xml2 xmlreader xmlwriter xorg xpm xscreensaver xv xvid xvmc yahoo zlib elibc_glibc input_devices_keyboard input_devices_mouse input_devices_synaptics kernel_linux linguas_en userland_GNU video_cards_radeon video_cards_vesa" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, MAKEOPTS Compile logs and preprocessed output attached in a minute...
Created attachment 87756 [details] netpbm compile log
Created attachment 87757 [details] netpbm pre-processed code
Created attachment 87758 [details] gimp compile log
Created attachment 87761 [details] gimp pre-processed code
Confirmed, reduced, and reported upstream. Occurs with: -ftree-vectorize -O1 -msse2 Reduced testcase: void binarize () { unsigned i, npixels; unsigned char *b; if (i == 1) { for (i = 0; i < npixels; i++) b[i] = (b[i] > 225 ? 0xff : 0); } }
I backported upstream's nice one line fix and this will be fixed for 4.1.1-r1, which will probably not be released for a little while :)
By the way, Gimp fixed this issue upstream. netpbm is still having issues.
s/Gimp fixed/Gimp worked around/
