[Bug c/43191] New: ice in load_assign_lhs_subreplacements, at tree-sra.c:2459

[regehr at cs dot utah dot edu]

reg...@john-home:~/volatile/bugs/tmp271$ current-gcc -O2 -c small.c

small.c: In function ‘func_70’:
small.c:46:1: internal compiler error: in load_assign_lhs_subreplacements, at
tree-sra.c:2459
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

reg...@john-home:~/volatile/bugs/tmp271$ cat small.c

struct S0
{
};

struct S1
{
  unsigned f0:27;
  const unsigned:0;
};

struct S2
{
  unsigned f2:1;
};

unsigned char g_4[1][8][3][1][1][1];
unsigned char *g_17;
unsigned char **g_16[1][10][7];

struct S2 g_35 = {
  0
};

struct S2 *g_34 = &g_35;

struct S1 func_86 (unsigned char p_87, struct S2 **p_89)
{
  struct S1 l_92[6][8][1][1] = {
    16143586
  }
  ;
  return l_92[0][0][0][0];
}

void func_28 (struct S1 p_30, const struct S1 p_32)
{
}

void func_70 (unsigned char p_72)
{
  unsigned char *const *l_93 = &g_17;
  struct S2 **l_94;
  unsigned char *const *l_97 = &g_17;
  func_28 (func_86 (p_72, 0), 
           func_86 (p_72, &g_34));
}

reg...@john-home:~/volatile/bugs/tmp271$ current-gcc -v

Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/home/regehr/z/tmp/gcc-r157079-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/tmp/gcc-r157079-install --program-prefix=r157079-
--enable-languages=c,c++
Thread model: posix
gcc version 4.5.0 20100226 (experimental) (GCC)


-- 
           Summary: ice in load_assign_lhs_subreplacements, at tree-
                    sra.c:2459
           Product: gcc
           Version: 4.5.0
            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=43191