[Bug target/126191] [pdp11] QImode arithmetic right shift by constants 4..7 zero-extends the operand, losing the sign

[migraineman33 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126191

--- Comment #1 from migraineman33 at gmail dot com ---
Created attachment 64986
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64986&action=edit
pdp11: sign-extend the operand in QImode arithmetic right shift (patch vs
master, with testsuite)