https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78364
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ktkachov at gcc dot
gnu.org
--- Comment #2 from ktkachov at gcc dot gnu.org ---
The bad assembly comes from the extzv_t2 pattern which ends up accepting:
24 @(insn:TI 12 6 13 (set (reg:SI 0 r0)
25 @ (zero_extract:SI (reg:SI 0 r0 [ a ])
26 @ (const_int 16 [0x10])
27 @ (const_int 17 [0x11]))) {extzv_t2}
28 @ (nil))
So the predicates need to be tightened
