Re: [PATCH] msvcrt: Improve memmove performance on i386 and x86_64 architectures.

[Piotr Caban]

On 1/26/21 5:25 PM, Alexandre Julliard wrote:
> Piotr Caban  writes:
> > +#define MEMMOVE_INIT \
> > - "movl " __ASM_NAME( "sse2_supported" ) ", %eax\n\t" \
> > - "cmp $0, %eax\n\t" \
>
> In general you can't access global variables that way, it's not
> compatible with PIC. I'd suggest doing that part from C code.

I've sent a fixed version that does the check on C side. It has some 
impact on performance but I guess it can be ignored.

Thanks,
Piotr