https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94613
Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|s390x |s390x powerpc*-*-*
Last reconfirmed| |2020-04-16
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
--- Comment #7 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Yes. The rs6000 code is bad as well:
(define_insn "*altivec_vsel<mode>"
[(set (match_operand:VM 0 "altivec_register_operand" "=v")
(if_then_else:VM
(ne:CC (match_operand:VM 1 "altivec_register_operand" "v")
(match_operand:VM 4 "zero_constant" ""))
(match_operand:VM 2 "altivec_register_operand" "v")
(match_operand:VM 3 "altivec_register_operand" "v")))]
"VECTOR_MEM_ALTIVEC_P (<MODE>mode)"
"vsel %0,%3,%2,%1"
[(set_attr "type" "vecmove")])
That is not what the insn does (the compare should be *bitwise*: it does
op0 := (op2 & ~op1) | (op3 & op1)
This can be written a few different ways in RTL; we'll have to find out
what works best.
