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Re: PATCH: Properly generate X32 IE sequence

On Sun, Mar 11, 2012 at 6:11 PM, H.J. Lu <hjl.tools@gmail.com> wrote:

> Since we must use reg64 in %fs:(%reg) memory operand like
>
> movq x@gottpoff(%rip),%reg64;
> mov %fs:(%reg64),%reg
>
> this patch optimizes x32 TLS IE load and store by wrapping
> %reg64 inside of UNSPEC when Pmode == SImode. ?OK for
> trunk?
>
> Thanks.
>
> --
> H.J.
> ---
> 2012-03-11 ?H.J. Lu ?<hongjiu.lu@intel.com>
>
> ? ? ? ?* config/i386/i386.md (*tls_initial_exec_x32_load): New.
> ? ? ? ?(*tls_initial_exec_x32_store): Likewise.

Can you implement this with define_insn_and_split, like i.e.
*tls_dynamic_gnu2_combine_32 ?

Uros.
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