[Bug c/51247] New: ICE in set_value_range, at tree-vrp.c:417

[regehr at cs dot utah.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51247

             Bug #: 51247
           Summary: ICE in set_value_range, at tree-vrp.c:417
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: reg...@cs.utah.edu
                CC: cheny...@cs.utah.edu


[regehr@gamow tmp066]$ current-gcc -v

Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r181530-install/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r181530-install
--program-prefix=r181530- --enable-languages=c,c++
Thread model: posix
gcc version 4.7.0 20111120 (experimental) (GCC) 

[regehr@gamow tmp066]$ current-gcc -c -w -O2 small.c

small.c: In function 'func_93':
small.c:9:1: internal compiler error: in set_value_range, at tree-vrp.c:417
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[regehr@gamow tmp066]$ cat small.c 


struct S0
{
  int f1:1;
};
int g_155;
int g_229;
int g_360;
struct S0
func_93 (int p_94, int p_95, int p_96)
{
  struct S0 l_272 = {
  };
  for (; g_155;)
    if (0)
      {
      }
    else
      l_272.f1 = 1;
  for (;;)
    {
      unsigned l_663 = 94967295;
      if (g_229++, g_360 = p_94 || (l_272.f1 &= l_663))
    {
    }
    }
}