[Bug target/106585] RISC-V: Mis-optimized code gen for zbs
pinskia at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Thu Aug 11 15:54:22 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106585
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(define_insn "*bset<mode>"
[(set (match_operand:X 0 "register_operand" "=r")
(ior:X (ashift:X (const_int 1)
(match_operand:QI 2 "register_operand" "r"))
(match_operand:X 1 "register_operand" "r")))]
"TARGET_ZBS"
"bset\t%0,%1,%2"
[(set_attr "type" "bitmanip")])
It uses X iterator here instead of GPR, hmmm ...
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