Bug 43679

[regehr@gamow tmp400]$ current-gcc -c -O2 small.c
small.c: In function 'func_37':
small.c:11:6: internal compiler error: in gen_lsm_tmp_name, at tree-ssa-loop-im.c:1812
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[regehr@gamow tmp400]$ cat small.c

unsigned g_5;
int g_7;
int g_23[2];
int *g_29 = &g_23[0];
int **g_59;
unsigned long g_186;

int foo (int, int);
int bar (int);

void func_37 (long p_38)
{
  int *l_39 = &g_7;
  *l_39 = (*l_39
	     ||
	     (foo
	      (((*g_29 != *l_39, ((bar (g_59 != &l_39), 0), 0))),
	       0)));
  foo (*l_39, 0);
  int **l_256 = &l_39;
  {
    for (0; g_186; 0)
      {
	*l_256 = *l_256;
	if (g_5)
	  goto lbl_270;
	*l_39 &= 0;
      }
  }
lbl_270:
  ;
}

[regehr@gamow tmp400]$ current-gcc -v

Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r158079-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-r158079-install --program-prefix=r158079- --enable-languages=c,c++
Thread model: posix
gcc version 4.6.0 20100407 (experimental) (GCC)