[fpc-pascal] Records

Micha Nelissen micha at neli.hopto.org
Wed Oct 26 12:06:57 CEST 2005

Vinzent Hoefler wrote:
>>Oh right! Something like a masked compare or so...probably not
>>implementable in an efficient way indeed I guess.
> Whatever you call efficient. A simple memory compare won't do, as others 
> already pointed out, and everything else depends on the actual layout 
> of the structure.

Your structure is very short, code length will explode for larger 
structures. It's inefficient compared to "REPE CMPSD" with proper 
context, this is only a few lines.

> 	andl	$56, %eax
> 	andl	$56, %edx
> 	cmpb	%al, %dl
> 	je	.L49
> .L42:
> 	movl	%esi, %eax
> 	popl	%edx
> 	popl	%ebx
> 	popl	%esi
> 	ret

What does this part do btw? Compare lengths?


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