[Bug middle-end/68122] ICE in gcc/toplev.c:353 with -fsanitize=undefined and -fgnu-tm

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68122

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |trans-mem
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-10-28
          Component|sanitizer                   |middle-end
     Ever confirmed|0                           |1

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Looks like it doesn't handle internal function calls properly.

/* Return true if CALL is const, or tm_pure.  */

static bool
is_tm_pure_call (gimple *call)
{
  tree fn = gimple_call_fn (call);

  if (TREE_CODE (fn) == ADDR_EXPR)
    {
      fn = TREE_OPERAND (fn, 0);
      gcc_assert (TREE_CODE (fn) == FUNCTION_DECL);
    }
  else


fn will be NULL for internal functions.