[Bug inline-asm/79552] [6 Regression] Wrong code generation due to -fschedule-insns, with __restrict__ and inline asm

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79552

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2017-02-16
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
  <bb 2> [100.00%]:
  c.0_1 = (long unsigned int) c_3(D);
  __asm__("rep stosb" : "=D" a_6, "=c" n_7, "=m" MEM[(struct ._0 *)a_5(D)
clique 1 base 0] : "a" 0, "0" a_5(D), "1" c.0_1);
  _2 = MEM[(char *)a_5(D) clique 1 base 1];
  __asm__ __volatile__("xor %0, %0" :  : "q" _2);

so we have two different restrict bases here which is obviously wrong.  I'll
see why.