[Bug middle-end/40154] New: internal compiler error: in do_SUBST, at combine.c:681

["rmansfield at qnx dot com" <gcc-bugzilla at gcc dot gnu dot org>]

ryan@ryan:~/gcc/trunk/gcc/build/gcc$ ./xgcc -v
Using built-in specs.
Target: sh4-unknown-linux-gnu
Configured with: ../configure --build=i486-build_pc-linux-gnu
--host=i486-build_pc-linux-gnu --target=sh4-unknown-linux-gnu
--prefix=/home/ryan/crosstool-ng-1.3.1/targets/sh4-unknown-linux-gnu/build/gcc-core-static
--with-local-prefix=/home/ryan/x-tools/sh4-unknown-linux-gnu/sh4-unknown-linux-gnu/sys-root
--disable-multilib
--with-sysroot=/home/ryan/x-tools/sh4-unknown-linux-gnu/sh4-unknown-linux-gnu/sys-root
--with-newlib --enable-threads=no --disable-shared --enable-__cxa_atexit
--disable-nls --enable-symvers=gnu --enable-languages=c
--enable-target-optspace
Thread model: single
gcc version 4.5.0 20090515 (experimental) [trunk revision 147550] (GCC)


$ cat ~/ice.i
char buf[20];

int main() {
        long long int t = 50;
        strcpy(buf, "hello world");
        t *= 1000000000;
        for(;;)
            foo(&t);
}
ryan@ryan:~/gcc/trunk/gcc/build/gcc$ ./xgcc -B. -O ~/ice.i
/home/ryan/ice.i: In function 'main':
/home/ryan/ice.i:5: warning: incompatible implicit declaration of built-in
function 'strcpy'
/home/ryan/ice.i:9: internal compiler error: in do_SUBST, at combine.c:681
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Works in gcc 4.3.3. Fails in gcc 4.4.0 and trunk (4.5.0 20090515)


-- 
           Summary: internal compiler error: in do_SUBST, at combine.c:681
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rmansfield at qnx dot com
 GCC build triplet: i486-build_pc-linux-gnu
  GCC host triplet: i486-build_pc-linux-gnu
GCC target triplet: sh4-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40154