[PATCH 3/7] target/ppc: use extract/extract2 to create vrlqnm mask

matheus.ferst@eldorado.org.br posted 7 patches 3 years, 11 months ago
Maintainers: "Cédric Le Goater" <clg@kaod.org>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Greg Kurz <groug@kaod.org>
[PATCH 3/7] target/ppc: use extract/extract2 to create vrlqnm mask
Posted by matheus.ferst@eldorado.org.br 3 years, 11 months ago
From: Matheus Ferst <matheus.ferst@eldorado.org.br>

Fixes: 4e272668406b ("target/ppc: implement vrlqnm")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
 target/ppc/translate/vmx-impl.c.inc | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx-impl.c.inc
index 8ea1d2c96a..8108e59d4d 100644
--- a/target/ppc/translate/vmx-impl.c.inc
+++ b/target/ppc/translate/vmx-impl.c.inc
@@ -1088,10 +1088,8 @@ static void do_vrlq_mask(TCGv_i64 mh, TCGv_i64 ml, TCGv_i64 b, TCGv_i64 e)
     tcg_gen_or_i64(tl, t1, tl);
 
     /* t = t >> 1 */
-    tcg_gen_shli_i64(t0, th, 63);
-    tcg_gen_shri_i64(tl, tl, 1);
+    tcg_gen_extract2_i64(tl, tl, th, 1);
     tcg_gen_shri_i64(th, th, 1);
-    tcg_gen_or_i64(tl, t0, tl);
 
     /* m = m ^ t */
     tcg_gen_xor_i64(mh, mh, th);
@@ -1148,10 +1146,8 @@ static bool do_vector_rotl_quad(DisasContext *ctx, arg_VX *a, bool mask,
     tcg_gen_or_i64(t1, ah, t1);
 
     if (mask || insert) {
-        tcg_gen_shri_i64(n, vrb, 8);
-        tcg_gen_shri_i64(vrb, vrb, 16);
-        tcg_gen_andi_i64(n, n, 0x7f);
-        tcg_gen_andi_i64(vrb, vrb, 0x7f);
+        tcg_gen_extract_i64(n, vrb, 8, 7);
+        tcg_gen_extract_i64(vrb, vrb, 16, 7);
 
         do_vrlq_mask(ah, al, vrb, n);
 
-- 
2.25.1
Re: [PATCH 3/7] target/ppc: use extract/extract2 to create vrlqnm mask
Posted by Richard Henderson 3 years, 11 months ago
On 3/4/22 07:51, matheus.ferst@eldorado.org.br wrote:
> From: Matheus Ferst<matheus.ferst@eldorado.org.br>
> 
> Fixes: 4e272668406b ("target/ppc: implement vrlqnm")
> Signed-off-by: Matheus Ferst<matheus.ferst@eldorado.org.br>
> ---
>   target/ppc/translate/vmx-impl.c.inc | 10 +++-------
>   1 file changed, 3 insertions(+), 7 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~