[Bug tree-optimization/84013] wrong __restrict clique with inline asm operand

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84013

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2018-01-24
            Version|tree-ssa                    |8.0
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot 
gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yes, this is a known limitation:

      if (restrict_var)
        {
          /* Now look at possible dereferences of ptr.  */
          imm_use_iterator ui;
          gimple *use_stmt;
          bool used = false;
          FOR_EACH_IMM_USE_STMT (use_stmt, ui, ptr)
            {
              /* ???  Calls and asms.  */
              if (!gimple_assign_single_p (use_stmt))
                continue;