On 12/20/23 20:50, [email protected] wrote:
+ (and:VI
+ (match_operand:VI 3 "register_operand" "vr, vr, vr, vr")
+ (not:VI (match_operand:VI 4 "register_operand" "vr, vr, vr, vr")))
This order should be swapped like ARM SVE:
(define_expand "@cond_bic<mode>"
[(set (match_operand:SVE_FULL_I 0 "register_operand")
(unspec:SVE_FULL_I
[(match_operand:<VPRED> 1 "register_operand")
(and:SVE_FULL_I
(not:SVE_FULL_I (match_operand:SVE_FULL_I 3 "register_operand"))
(match_operand:SVE_FULL_I 2 "register_operand"))
(match_operand:SVE_FULL_I 4 "aarch64_simd_reg_or_zero")]
UNSPEC_SEL))]
"TARGET_SVE"
)
Correct. This case is even noted in the internals manual ;-)
A machine that has an instruction that performs a bitwise logical-and of one
operand with the bitwise negation of the other should specify the pattern
for that instruction as
@smallexample
(define_insn ""
[(set (match_operand:@var{m} 0 @dots{})
(and:@var{m} (not:@var{m} (match_operand:@var{m} 1 @dots{}))
(match_operand:@var{m} 2 @dots{})))]
"@dots{}"
"@dots{}")
@end smallexample
Jeff
