Ignored vs Assumed Semantics in BDE

BloombergLP::bdlbb::Blob::assertInvariants() const - Ignored

000000000041dcd0 <BloombergLP::bdlbb::Blob::assertInvariants() const>:
M0000000000000000:	xorl	%eax, %eax	;  2 bytes
M0000000000000002:	retq		;  1 bytes
M0000000000000003:	nopw	%cs:(%rax,%rax)	; 10 bytes
M000000000000000d:	nopl	(%rax)	;  3 bytes