[Bug rtl-optimization/79121] [6/7 Regression] invalid expansion of sign-extend unsigned plus left shift

[wilco at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79121

wilco at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-01-17
                 CC|                            |wilco at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from wilco at gcc dot gnu.org ---
Confirmed. This also fails on 64-bit targets, eg. on AArch64:

__int128 f2(unsigned long x) { return (__int128)x << 4; }

        mov     x1, x0
        lsl     x0, x0, 4
        asr     x1, x1, 60
        ret