[Bug bootstrap/45067] New: [4.6 regression] ARM bootstrap failure: internal compiler error: in expand_widen_pattern_expr, at optabs.c:522

[mikpe at it dot uu dot se]

4.6-20100724 (r162503) fails to bootstrap on arm-linux-gnueabi in stage 2:

make[3]: Entering directory `/home/mikpe/objdir46/libdecnumber'
source='/home/mikpe/gcc-4.6-20100724/libdecnumber/decNumber.c'
object='decNumber.o' libtool=no /home/mikpe/objdir46/./prev-gcc/xgcc
-B/home/mikpe/objdir46/./prev-gcc/
-B/home/mikpe/temp/armv5tel-brewer-linux-gnueabi/bin/
-B/home/mikpe/temp/armv5tel-brewer-linux-gnueabi/bin/
-B/home/mikpe/temp/armv5tel-brewer-linux-gnueabi/lib/ -isystem
/home/mikpe/temp/armv5tel-brewer-linux-gnueabi/include -isystem
/home/mikpe/temp/armv5tel-brewer-linux-gnueabi/sys-include    
-I/home/mikpe/gcc-4.6-20100724/libdecnumber -I.  -g -O2 -gtoggle -W -Wall
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-Wmissing-format-attribute -Wcast-qual -pedantic -Wno-long-long -Werror
-I/home/mikpe/gcc-4.6-20100724/libdecnumber -I.  -c
/home/mikpe/gcc-4.6-20100724/libdecnumber/decNumber.c
/home/mikpe/gcc-4.6-20100724/libdecnumber/decNumber.c: In function
'decDivideOp':
/home/mikpe/gcc-4.6-20100724/libdecnumber/decNumber.c:4456:15: internal
compiler error: in expand_widen_pattern_expr, at optabs.c:522
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [decNumber.o] Error 1
make[3]: Leaving directory `/home/mikpe/objdir46/libdecnumber'
make[2]: *** [all-stage2-libdecnumber] Error 2
make[2]: Leaving directory `/home/mikpe/objdir46'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/home/mikpe/objdir46'
make: *** [bootstrap] Error 2

The previous weekly snapshot (4.6-20100717) did bootstrap Ok (with r162270
reverted).

gcc-4.6 was configured:
/home/mikpe/gcc-4.6-20100724/configure --prefix=/home/mikpe/temp
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions
--enable-languages=c,c++,objc,obj-c++,java,fortran --enable-java-awt=gtk
--disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --disable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--disable-sjlj-exceptions --with-arch=armv5te --with-tune=xscale
--build=armv5tel-brewer-linux-gnueabi
--with-gmp=/home/mikpe/pkgs/linux-armv5l/gmp-4.3.2
--with-mpfr=/home/mikpe/pkgs/linux-armv5l/mpfr-2.4.2
--with-mpc=/home/mikpe/pkgs/linux-armv5l/mpc-0.8.2 --disable-plugin
--disable-lto --disable-libmudflap


-- 
           Summary: [4.6 regression] ARM bootstrap failure: internal
                    compiler error: in expand_widen_pattern_expr, at
                    optabs.c:522
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mikpe at it dot uu dot se
 GCC build triplet: armv5tel-unknown-linux-gnueabi
  GCC host triplet: armv5tel-unknown-linux-gnueabi
GCC target triplet: armv5tel-unknown-linux-gnueabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45067