On 03/03/2022 16:30, Richard Henderson wrote:
On 3/3/22 07:20, matheus.fe...@eldorado.org.br wrote:
From: Matheus Ferst <matheus.fe...@eldorado.org.br>
LLVM/Clang doesn't know the VSX registers when compiling with
-mabi=elfv1. Use only registers >= 32 and list them with their Altivec
name.
Signed-off-by: Matheus Ferst <matheus.fe...@eldorado.org.br>
This description isn't quite right. The change to the m[tf]vsr insns is
a generic bug
fix, and not related to Clang.
I'm not sure if I understood. I'm targeting the Clang problem with this
patch, is something else being fixed by this change?
AFAICT, the old "mtvsrd 0, %2" and "mfvsrd %0, 0" were correct, I'm just
changing from VSR 0 to VSR 32 to allow the clobber with Clang, but GCC
doesn't seem to have this limitation with ELFv1.
Thanks,
Matheus K. Ferst
Instituto de Pesquisas ELDORADO <http://www.eldorado.org.br/>
Analista de Software
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