[Bug c++/24935] New: crash with -ftree-vectorize

[httpsuser at yahoo dot com]

Firefox 1.5 rc3, if compiled with -ftree-vectorize, always crashes on many web
sites e.g. www.ciao.co.uk. see attachment

.mozconfig:

export MOZ_PHOENIX=1
export CFLAGS="-O3 --param max-inline-insns-single=16 --param
max-inline-insns-auto=16 -fno-unswitch-loops -g -pipe -mmmx -msse
-march=pentium3 -mfpmath=sse -ftree-vectorize"
export CXXFLAGS="-O3 --param max-inline-insns-single=20 --param
max-inline-insns-auto=20 -fno-unswitch-loops -g -pipe -mmmx -msse
-march=pentium3 -mfpmath=sse -ftree-vectorize"

mk_add_options MOZ_PHOENIX=1

ac_add_options --prefix=/usr/dbg

ac_add_options --enable-static
ac_add_options --enable-application=browser
ac_add_options --enable-crypto
ac_add_options --enable-single-profile
ac_add_options --enable-default-toolkit=gtk2
ac_add_options --enable-optimize="-O3 -fno-unswitch-loops -g -pipe -mmmx -msse
-march=pentium3 -mfpmath=sse -ftree-vectorize"
ac_add_options --enable-xft 

ac_add_options --disable-freetype2 
ac_add_options --disable-ldap
ac_add_options --disable-mailnews
ac_add_options --disable-profilesharing
ac_add_options --disable-debug
ac_add_options --disable-installer
ac_add_options --disable-gtktest
ac_add_options --disable-glibtest
ac_add_options --disable-tests
ac_add_options --disable-updater
ac_add_options --disable-shared
ac_add_options --disable-composer
ac_add_options --disable-mathml
ac_add_options --disable-accessibility


-- 
   Summary: crash with -ftree-vectorize
   Product: gcc
   Version: 4.0.2
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
    ReportedBy: httpsuser at yahoo dot com
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24935

[Bug tree-optimization/24935] crash with -ftree-vectorize

[httpsuser at yahoo dot com]

--- Comment #1 from httpsuser at yahoo dot com  2005-11-18 20:19 ---
Created an attachment (id=10281)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10281&action=view)
backtrace


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24935

[Bug tree-optimization/24935] crash with -ftree-vectorize

[httpsuser at yahoo dot com]

--- Comment #3 from httpsuser at yahoo dot com  2005-11-18 20:38 ---
1. download Firefox source
http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/1.5rc3/source/firefox-1.5rc3-source.tar.bz2
2. compile with my .mozconfig
3. run in gdb with firefox -g
4. browse http://www.ciao.co.uk/. It should crash.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24935