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Date: Mon, 28 Jun 2010 06:01:00 -0000
Subject: [Bug c/44695]  New: ice in simplify_subreg, at simplify-rtx.c:5117
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From: "regehr at cs dot utah dot edu" <gcc-bugzilla@gcc.gnu.org>
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regehr@john-home:~/volatile/bugs/tmp319$ current-gcc -v

Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/home/regehr/z/compiler-install/gcc-r161425-install/libexec/gcc/i686-pc-linux-gnu/4.6.0/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r161425-install
--program-prefix=r161425- --enable-languages=c,c++
Thread model: posix
gcc version 4.6.0 20100626 (experimental) (GCC) 

regehr@john-home:~/volatile/bugs/tmp319$ current-gcc -O2 small.c -c 

small.c: In function ‘int81’:
small.c:20:1: internal compiler error: in simplify_subreg, at
simplify-rtx.c:5117
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

regehr@john-home:~/volatile/bugs/tmp319$ cat small.c

typedef int int32_t;
typedef unsigned char uint8_t;

static uint8_t
safe_div_func_uint8_t_u_u (uint8_t ui1, uint8_t ui2)
{
  return ui2 ? : (ui1 / ui2);
}

int safe (int);
int func_51 (int);

void
int81 (void)
{
  int32_t l_219 = 8L;
  if (safe (safe_div_func_uint8_t_u_u (1 || 0, l_219 & func_51 (0))))
    {
    }
}


-- 
           Summary: ice in simplify_subreg, at simplify-rtx.c:5117
           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=44695