[Bug c/44816] New: ice in subst_reloads, at reload.c:6328

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

[regehr@gamow tmp418]$ current-gcc -v               
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r161681-install/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r161681-install
--program-prefix=r161681- --enable-languages=c,c++
Thread model: posix
gcc version 4.6.0 20100701 (experimental) (GCC) 

[regehr@gamow tmp418]$ current-gcc -Os small.c -c -w

small.c: In function 'int329':
small.c:34:1: internal compiler error: in subst_reloads, at reload.c:6328
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[regehr@gamow tmp418]$ cat small.c

static int
foo (int si1, int si2)
{
  return si1 ^ si2 & si1 ^ si1 ^ si2 & ~1 - si2 ^ si2 ? : si1 - si2;
}

static unsigned
bar (unsigned ui1, unsigned ui2)
{
  return ui1 + ui2;
}

int g_29;
int g_75;
int g_83;
int func_53 (unsigned char p_54, long p_55, unsigned char p_56);

int safe (int);

void int325 (long p_6, int p_7)
{
  int *l_28 = &g_29;
  *l_28 |= safe (0) <= foo;
}

void int329 (unsigned long p_50)
{
  int *l_74 = &g_75;
  int *l_82 = &g_83;
  *l_74 ^= foo (func_53 (6L, 1L, 1), 0);
  *l_82 |=
    func_53 (0L, 0, 0) <= bar (func_53 (0, 1, 0),
                                                      p_50);
}

int
func_53 (unsigned char p_54, long p_55, unsigned char p_56)
{
  return g_29;
}


-- 
           Summary: ice in subst_reloads, at reload.c:6328
           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: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44816