[Bug regression/37976] New: ICE in insert_into_preds_of_block

["dirtyepic at gentoo dot org" <gcc-bugzilla at gcc dot gnu dot org>]

This looks like PR #29922, but I'm hitting it on the trunk while compiling
tcp-wrappers-7.6.  It didn't fail on my last system rebuild a week or two ago.


Using built-in specs.
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.4.0_pre9999/work/gcc-4.4.0-9999/configure
--prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.4.0-pre9999
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.0-pre9999
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.0-pre9999/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.0-pre9999/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/include/g++-v4
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec
--disable-fixed-point --disable-nls --with-system-zlib --disable-checking
--disable-werror --enable-secureplt --enable-multilib --disable-libmudflap
--disable-libssp --enable-libgomp --enable-cld --disable-libgcj
--enable-languages=c,c++ --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu
--with-bugurl=http://bugs.gentoo.org/ --with-pkgversion= --enable-linux-futex
--enable-checking
Thread model: posix
gcc version 4.4.0-pre9999 built 20081030 (Gentoo SVN ebuild) rev. 141462 ()
COLLECT_GCC_OPTIONS='-c' '-v' '-save-temps' '-O2' '-E' '-mtune=generic'
 /usr/libexec/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/cc1 -E -quiet -v
percent_x.c -mtune=generic -O2 -fpch-preprocess
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/../../../../x86_64-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/include
 /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/include-fixed
 /usr/include
End of search list.
COMPILER_PATH=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/:/usr/libexec/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/:/usr/libexec/gcc/x86_64-pc-linux-gnu/:/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/:/usr/lib/gcc/x86_64-pc-linux-gnu/:/usr/libexec/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/:/usr/libexec/gcc/x86_64-pc-linux-gnu/:/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/:/usr/lib/gcc/x86_64-pc-linux-gnu/:/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/../../../../x86_64-pc-linux-gnu/bin/
LIBRARY_PATH=/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/:/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/:/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/../../../../lib64/:/lib/../lib64/:/usr/lib/../lib64/:/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/../../../../x86_64-pc-linux-gnu/lib/:/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-c' '-v' '-save-temps' '-O2' '-E' '-mtune=generic'
Using built-in specs.
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.4.0_pre9999/work/gcc-4.4.0-9999/configure
--prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.4.0-pre9999
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.0-pre9999
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.0-pre9999/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.0-pre9999/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/include/g++-v4
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec
--disable-fixed-point --disable-nls --with-system-zlib --disable-checking
--disable-werror --enable-secureplt --enable-multilib --disable-libmudflap
--disable-libssp --enable-libgomp --enable-cld --disable-libgcj
--enable-languages=c,c++ --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu
--with-bugurl=http://bugs.gentoo.org/ --with-pkgversion= --enable-linux-futex
--enable-checking
Thread model: posix
gcc version 4.4.0-pre9999 built 20081030 (Gentoo SVN ebuild) rev. 141462 ()
COLLECT_GCC_OPTIONS='-c' '-v' '-save-temps' '-O2' '-o'
'/var/cache/ccache/tmp.hash.kali.5429.o' '-mtune=generic'
 /usr/libexec/gcc/x86_64-pc-linux-gnu/4.4.0-pre9999/cc1 -fpreprocessed
/var/cache/ccache/percent_x.tmp.kali.5429.i -quiet -dumpbase
percent_x.tmp.kali.5429.i -mtune=generic -auxbase-strip
/var/cache/ccache/tmp.hash.kali.5429.o -O2 -version -o
percent_x.tmp.kali.5429.s
GNU C () version 4.4.0-pre9999 built 20081030 (Gentoo SVN ebuild) rev. 141462
(x86_64-pc-linux-gnu)
        compiled by GNU C version 4.4.0-pre9999 built 20081030 (Gentoo SVN
ebuild) rev. 141462, GMP version 4.2.4, MPFR version 2.3.2.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: e9c90fc3428f6f69e680d8fe0bdc6284
percent_x.c: In function 'percent_x':
percent_x.c:31: internal compiler error: in insert_into_preds_of_block, at
tree-ssa-pre.c:3120
Please submit a full bug report,
with preprocessed source if appropriate.

(Please note that despite having "Gentoo" in the version name, this is vanilla
GCC - no patches have been applied.)

The ICE is not triggered with -O{0,1,s}.


-- 
           Summary: ICE in insert_into_preds_of_block
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: regression
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dirtyepic at gentoo dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37976