[Bug c/39886] New: ICE in purge_dead_edges, at cfgrtl.c:2274

["regehr at cs dot utah dot edu" <gcc-bugzilla@gcc.gnu.org>]

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regehr@john-home:~/volatile/tmp147$ current-gcc -O2 small.c -Wall -c
small.c: In function ‘uint8func’:
small.c:9: internal compiler error: in purge_dead_edges, at cfgrtl.c:2274
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

regehr@john-home:~/volatile/tmp147$ cat small.c

int func(int);

volatile unsigned char g_100;

void uint8func (int p_34)
{
  char l_125 = 0xE1;
  func ((func ((p_34 & g_100) <= l_125), 1));
}

regehr@john-home:~/volatile/tmp147$ current-gcc -v

Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../configure --prefix=/home/regehr/z/tmp/gcc-r146634-install
--program-prefix=r146634- --enable-languages=c,c++
Thread model: posix
gcc version 4.5.0 20090423 (experimental) (GCC)


-- 
           Summary: ICE in purge_dead_edges, at cfgrtl.c:2274
           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=39886