[PATCH v2 13/46] target/loongarch: Implement xvadda

[Song Gao]

This patch includes:
- XVADDA.{B/H/W/D}.

Signed-off-by: Song Gao <gaosong@loongson.cn>
---
 target/loongarch/disas.c                     | 5 +++++
 target/loongarch/insn_trans/trans_lasx.c.inc | 5 +++++
 target/loongarch/insns.decode                | 5 +++++
 target/loongarch/vec.h                       | 2 ++
 target/loongarch/vec_helper.c                | 8 ++++----
 5 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/target/loongarch/disas.c b/target/loongarch/disas.c
index d0b1de39b8..b48822e431 100644
--- a/target/loongarch/disas.c
+++ b/target/loongarch/disas.c
@@ -1851,6 +1851,11 @@ INSN_LASX(xvabsd_hu,         vvv)
 INSN_LASX(xvabsd_wu,         vvv)
 INSN_LASX(xvabsd_du,         vvv)
 
+INSN_LASX(xvadda_b,          vvv)
+INSN_LASX(xvadda_h,          vvv)
+INSN_LASX(xvadda_w,          vvv)
+INSN_LASX(xvadda_d,          vvv)
+
 INSN_LASX(xvreplgr2vr_b,     vr)
 INSN_LASX(xvreplgr2vr_h,     vr)
 INSN_LASX(xvreplgr2vr_w,     vr)
diff --git a/target/loongarch/insn_trans/trans_lasx.c.inc 
b/target/loongarch/insn_trans/trans_lasx.c.inc
index bd8ba6c7b6..30cb286cb9 100644
--- a/target/loongarch/insn_trans/trans_lasx.c.inc
+++ b/target/loongarch/insn_trans/trans_lasx.c.inc
@@ -166,6 +166,11 @@ TRANS(xvabsd_hu, gvec_vvv, 32, MO_16, do_vabsd_u)
 TRANS(xvabsd_wu, gvec_vvv, 32, MO_32, do_vabsd_u)
 TRANS(xvabsd_du, gvec_vvv, 32, MO_64, do_vabsd_u)
 
+TRANS(xvadda_b, gvec_vvv, 32, MO_8, do_vadda)
+TRANS(xvadda_h, gvec_vvv, 32, MO_16, do_vadda)
+TRANS(xvadda_w, gvec_vvv, 32, MO_32, do_vadda)
+TRANS(xvadda_d, gvec_vvv, 32, MO_64, do_vadda)
+
 TRANS(xvreplgr2vr_b, gvec_dup, 32, MO_8)
 TRANS(xvreplgr2vr_h, gvec_dup, 32, MO_16)
 TRANS(xvreplgr2vr_w, gvec_dup, 32, MO_32)
diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode
index c086ee9b22..f3722e3aa7 100644
--- a/target/loongarch/insns.decode
+++ b/target/loongarch/insns.decode
@@ -1432,6 +1432,11 @@ xvabsd_hu        0111 01000110 00101 ..... ..... .....   
 @vvv
 xvabsd_wu        0111 01000110 00110 ..... ..... .....    @vvv
 xvabsd_du        0111 01000110 00111 ..... ..... .....    @vvv
 
+xvadda_b         0111 01000101 11000 ..... ..... .....    @vvv
+xvadda_h         0111 01000101 11001 ..... ..... .....    @vvv
+xvadda_w         0111 01000101 11010 ..... ..... .....    @vvv
+xvadda_d         0111 01000101 11011 ..... ..... .....    @vvv
+
 xvreplgr2vr_b    0111 01101001 11110 00000 ..... .....    @vr
 xvreplgr2vr_h    0111 01101001 11110 00001 ..... .....    @vr
 xvreplgr2vr_w    0111 01101001 11110 00010 ..... .....    @vr
diff --git a/target/loongarch/vec.h b/target/loongarch/vec.h
index ef2897fc10..30f1a7775f 100644
--- a/target/loongarch/vec.h
+++ b/target/loongarch/vec.h
@@ -55,4 +55,6 @@
 
 #define DO_VABSD(a, b)  ((a > b) ? (a - b) : (b - a))
 
+#define DO_VABS(a)      ((a < 0) ? (-a) : (a))
+
 #endif /* LOONGARCH_VEC_H */
diff --git a/target/loongarch/vec_helper.c b/target/loongarch/vec_helper.c
index 99a1601d4e..343aef696e 100644
--- a/target/loongarch/vec_helper.c
+++ b/target/loongarch/vec_helper.c
@@ -381,16 +381,16 @@ DO_3OP(vabsd_hu, 16, UH, DO_VABSD)
 DO_3OP(vabsd_wu, 32, UW, DO_VABSD)
 DO_3OP(vabsd_du, 64, UD, DO_VABSD)
 
-#define DO_VABS(a)  ((a < 0) ? (-a) : (a))
-
 #define DO_VADDA(NAME, BIT, E, DO_OP)                       \
 void HELPER(NAME)(void *vd, void *vj, void *vk, uint32_t v) \
 {                                                           \
-    int i;                                                  \
+    int i, len;                                             \
     VReg *Vd = (VReg *)vd;                                  \
     VReg *Vj = (VReg *)vj;                                  \
     VReg *Vk = (VReg *)vk;                                  \
-    for (i = 0; i < LSX_LEN/BIT; i++) {                     \
+                                                            \
+    len = (simd_oprsz(v) == 16) ? LSX_LEN : LASX_LEN;       \
+    for (i = 0; i < len / BIT; i++) {                       \
         Vd->E(i) = DO_OP(Vj->E(i)) + DO_OP(Vk->E(i));       \
     }                                                       \
 }
-- 
2.39.1