On 3/3/22 10:53, Matheus K. Ferst wrote:
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.
Oh, whoops, I mis-read the patch.
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
r~
