https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90622
Georg-Johann Lay <gjl at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P5
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-05-31
Ever confirmed|0 |1
Known to fail| |8.0.1
--- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Confirmed with v8. The built-in folding special-cases if the inserted bit(s)
don't change their position and always expands to XOR-AND-XOR. Otherwise it
tries to find some better sequence and fails, and finally just prints that
BST-BLD.
