[Bug c++/95579] [10/11 Regression] internal compiler error: in sign_mask, at wide-int.h:855

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95579

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Target Milestone|---                         |10.2
                 CC|                            |jakub at gcc dot gnu.org
           Priority|P3                          |P2
            Summary|internal compiler error: in |[10/11 Regression] internal
                   |sign_mask, at               |compiler error: in
                   |wide-int.h:855              |sign_mask, at
                   |                            |wide-int.h:855
   Last reconfirmed|                            |2020-06-08
             Status|UNCONFIRMED                 |NEW

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r10-6527-gaaa26bf496a646778ac861aed124d960b5bf549f
Reduced testcase:

unsigned short
foo (unsigned short a)
{
  constexpr unsigned char b[1] = { 15 };
  return (0x00ffU & a) << b[0] | (0xff00U & a) >> b[0];
}