[fpc-devel] x86_64.inc CompareByte

[C Western]

On 29/10/17 22:18, Florian Klämpfl wrote:
> 
> I have committed your lastest patch with a few changes: the loop entry is aligned now to 16 bytes, I
> used movb instead of movbzl and inc instead of add. For me (Haswell CPU) this works better. I think
> also these changes are better on average.
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With this patch on x86_64 linux lazarus crashes at random places, but 
quite frequently, and CompareByte seems to be implicated. Should the 
zero exit be:

xorl    %rax, %rax

Colin