[Bug bootstrap/14180] New: [3.4 regression] bootstrap failure with 3.4 branch

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

Since two days I get a bootstrap failure when bootstrapping 3.4 branch
(i686-pc-linux-gnu with --enable-checking):

stage1/xgcc -Bstage1/
-B/home/reichelt/GCC/FARM/gcc-3.3-20040216/i686-pc-linux-gnu/bin/   -g -O2
-DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-pedantic -Wno-long-long -Wold-style-definition  -fno-common  
-DHAVE_CONFIG_H    -I. -I. -I../../gcc/gcc -I../../gcc/gcc/.
-I../../gcc/gcc/../include  -c insn-recog.c \
  -o insn-recog.o
insn-recog.c: In function `recog_15':
insn-recog.c:15695: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[1]: *** [insn-recog.o] Error 1
make[1]: Leaving directory `/Work/reichelt/gccbuild/src-3.4/build/gcc'
make: *** [stage2_build] Error 2

I used gcc 3.3.3 and gcc 3.4.0-20040214 as a bootstrap-compiler.

I'll attach two reduced testcases that segfault with the stage1-compiler.

Honza, your patch

http://gcc.gnu.org/ml/gcc-cvs/2004-02/msg00765.html

triggers the failure for me. Reverting it makes things work again
(the bootstrap as well as the testcases).

Could you please have a look?

-- 
           Summary: [3.4 regression] bootstrap failure with 3.4 branch
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org,jh at suse dot cz
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14180