[Bug c/43614] New: ice in gimple_rhs_has_side_effects, at gimple.c:2248

[regehr at cs dot utah dot edu]

There was a big like this earlier but it's marked as resolved, so filing a new
one.

regehr@john-home:~/volatile/bugs/tmp296$ current-gcc -O small.c -c
small.c: In function ‘main’:
small.c:5:5: internal compiler error: in gimple_rhs_has_side_effects, at
gimple.c:2248
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

regehr@john-home:~/volatile/bugs/tmp296$ cat small.c

volatile int g_2[7];

void foo (unsigned);

int main (void)
{
  int i_459 = 0;
  int t2818;
  int t2819;
  volatile char *t2820;
  int t2821;
  volatile char *t2822;
  int *t2823;
  unsigned t2824;
LL655:
  t2822 = (volatile char *)g_2;
  t2821 = i_459;
  t2820 = t2822 + t2821;
  t2823 = (int *)t2820;
  t2824 = *t2823;
  foo (t2824);
  t2818 = i_459;
  t2819 = t2818 + 1;
  i_459 = t2819;
  goto LL655;
}

regehr@john-home:~/volatile/bugs/tmp296$ current-gcc -v

Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/home/regehr/z/compiler-install/gcc-r157896-install/libexec/gcc/i686-pc-linux-gnu/4.5.0/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r157896-install
--program-prefix=r157896- --enable-languages=c,c++
Thread model: posix
gcc version 4.5.0 20100331 (experimental) (GCC)


-- 
           Summary: ice in gimple_rhs_has_side_effects, at gimple.c:2248
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: regehr at cs dot utah dot edu
 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=43614