[Bug c/44485] New: ICE in get_expr_operands, at tree-ssa-operands.c:1020

[regehr at cs dot utah dot edu]

regehr@gamow tmp414]$ current-gcc -v
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r160490-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-r160490-install
--program-prefix=r160490- --enable-languages=c,c++
Thread model: posix
gcc version 4.6.0 20100609 (experimental) (GCC) 

[regehr@gamow tmp414]$ current-gcc -c -O small.c

small.c: In function 'func_21':
small.c:42:22: warning: assignment makes integer from pointer without a cast
[enabled by default]
unhandled expression in get_expr_operands():
 <error_mark 0x7fa3684399f0>

small.c: In function 'int324':
small.c:21:6: internal compiler error: in get_expr_operands, at
tree-ssa-operands.c:1020
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[regehr@gamow tmp414]$ cat small.c

static int
foo (int si1, int si2)
{
  return si1 > 0 && si2 > 0 && si1 > -si2 || si1 < 0 && si2 < 0
    && si1 < -si2 ? : si1 + si2;
}

struct S0
{
  unsigned short f1;
};
int g_4;
struct S0 g_54 = {
  3428
};

int
func_21 (int * p_22, int * const int32p_24, unsigned p_25,
         const int * p_26);

void int324 (unsigned p_15, int * p_16, int * p_17, int * p_18)
{
  if (foo (g_4, func_21 (p_18, &g_4, 0, 0)))
    {
      for (g_54.f1; g_54.f1; g_54.f1 += 1)
        {
        }
    }
}

int
func_21 (int * p_22, int * const int32p_24, unsigned p_25,
         const int * p_26)
{
  for (0; 1; p_25 += 1)
  lbl_29:if (p_25)
      goto lbl_28;
lbl_28:for (p_25 = 0; p_25 < 9; p_25 += 1)
    if (p_25)
      goto lbl_29;
  unsigned short l_53;
  for (0; l_53; l_53 = foo)
    {
    }
  return 0;
}


-- 
           Summary: ICE in get_expr_operands, at tree-ssa-operands.c:1020
           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=44485