Re: [Qemu-devel] [PATCH 2/8] target/ppc: Optimize emulation of vsl and vsr instructions

[Stefan Brankovic]

On 6.6.19. 19:03, Richard Henderson wrote:
On 6/6/19 5:15 AM, Stefan Brankovic wrote:
+    tcg_gen_subi_i64(tmp, sh, 64);
+    tcg_gen_neg_i64(tmp, tmp);
Better as

     tcg_gen_subfi_i64(tmp, 64, sh);

I was aware there must be way of doing it in a single tcg invocation, 
but couldn't find right tcg instruction. I will apply this in v2.

Kind Regards,

Stefan

r~