[Bug bootstrap/89560] [9 regression] ICE In function 'rtx_def* gen_vec_extract_lo_v64qi(rtx, rtx)'

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89560

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2019-03-04
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Oops, caused by my previous fold_checksum_tree fix r269303 aka PR89503.

Short testcase:
#define TEN(x) x##0, x##1, x##2, x##3, x##4, x##5, x##6, x##7, x##8, x##9,
#define HUNDRED(x) TEN(x##0) TEN(x##1) TEN(x##2) TEN(x##3) TEN(x##4) \
                   TEN(x##5) TEN(x##6) TEN(x##7) TEN(x##8) TEN(x##9)
int foo (int, ...);

int
bar (void)
{
  return (foo (HUNDRED (1) 0));
}