Ignored vs Assumed Semantics in BDE

AttributeSet::insert(BloombergLP::ball::Attribute const&) - Ignored

00000000004057b0 <AttributeSet::insert(BloombergLP::ball::Attribute const&)>:
M0000000000000000:	addq	$8, %rdi	;  4 bytes
M0000000000000004:	jmp	0x40fe00 <bsl::set<BloombergLP::ball::Attribute, AttributeComparator, bsl::allocator<BloombergLP::ball::Attribute> >::insert(BloombergLP::ball::Attribute const&)>	;  5 bytes
M0000000000000009:	nopl	(%rax)	;  7 bytes