target/loongarch: Implement vpcnt
This patch includes:
- VPCNT.{B/H/W/D}.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-31-gaosong@loongson.cn>
diff --git a/target/loongarch/disas.c b/target/loongarch/disas.c
index 0c82a1d..0ca51de 100644
--- a/target/loongarch/disas.c
+++ b/target/loongarch/disas.c
@@ -1267,3 +1267,8 @@
INSN_LSX(vclz_h, vv)
INSN_LSX(vclz_w, vv)
INSN_LSX(vclz_d, vv)
+
+INSN_LSX(vpcnt_b, vv)
+INSN_LSX(vpcnt_h, vv)
+INSN_LSX(vpcnt_w, vv)
+INSN_LSX(vpcnt_d, vv)
diff --git a/target/loongarch/helper.h b/target/loongarch/helper.h
index e21e9b9..96b9b16 100644
--- a/target/loongarch/helper.h
+++ b/target/loongarch/helper.h
@@ -480,3 +480,8 @@
DEF_HELPER_3(vclz_h, void, env, i32, i32)
DEF_HELPER_3(vclz_w, void, env, i32, i32)
DEF_HELPER_3(vclz_d, void, env, i32, i32)
+
+DEF_HELPER_3(vpcnt_b, void, env, i32, i32)
+DEF_HELPER_3(vpcnt_h, void, env, i32, i32)
+DEF_HELPER_3(vpcnt_w, void, env, i32, i32)
+DEF_HELPER_3(vpcnt_d, void, env, i32, i32)
diff --git a/target/loongarch/insn_trans/trans_lsx.c.inc b/target/loongarch/insn_trans/trans_lsx.c.inc
index c7649fb..f4ebdca 100644
--- a/target/loongarch/insn_trans/trans_lsx.c.inc
+++ b/target/loongarch/insn_trans/trans_lsx.c.inc
@@ -3106,3 +3106,8 @@
TRANS(vclz_h, gen_vv, gen_helper_vclz_h)
TRANS(vclz_w, gen_vv, gen_helper_vclz_w)
TRANS(vclz_d, gen_vv, gen_helper_vclz_d)
+
+TRANS(vpcnt_b, gen_vv, gen_helper_vpcnt_b)
+TRANS(vpcnt_h, gen_vv, gen_helper_vpcnt_h)
+TRANS(vpcnt_w, gen_vv, gen_helper_vpcnt_w)
+TRANS(vpcnt_d, gen_vv, gen_helper_vpcnt_d)
diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode
index 7591ec1..f865e83 100644
--- a/target/loongarch/insns.decode
+++ b/target/loongarch/insns.decode
@@ -968,3 +968,8 @@
vclz_h 0111 00101001 11000 00101 ..... ..... @vv
vclz_w 0111 00101001 11000 00110 ..... ..... @vv
vclz_d 0111 00101001 11000 00111 ..... ..... @vv
+
+vpcnt_b 0111 00101001 11000 01000 ..... ..... @vv
+vpcnt_h 0111 00101001 11000 01001 ..... ..... @vv
+vpcnt_w 0111 00101001 11000 01010 ..... ..... @vv
+vpcnt_d 0111 00101001 11000 01011 ..... ..... @vv
diff --git a/target/loongarch/lsx_helper.c b/target/loongarch/lsx_helper.c
index e808e5f..9f91a47 100644
--- a/target/loongarch/lsx_helper.c
+++ b/target/loongarch/lsx_helper.c
@@ -1946,3 +1946,21 @@
DO_2OP(vclz_h, 16, UH, DO_CLZ_H)
DO_2OP(vclz_w, 32, UW, DO_CLZ_W)
DO_2OP(vclz_d, 64, UD, DO_CLZ_D)
+
+#define VPCNT(NAME, BIT, E, FN) \
+void HELPER(NAME)(CPULoongArchState *env, uint32_t vd, uint32_t vj) \
+{ \
+ int i; \
+ VReg *Vd = &(env->fpr[vd].vreg); \
+ VReg *Vj = &(env->fpr[vj].vreg); \
+ \
+ for (i = 0; i < LSX_LEN/BIT; i++) \
+ { \
+ Vd->E(i) = FN(Vj->E(i)); \
+ } \
+}
+
+VPCNT(vpcnt_b, 8, UB, ctpop8)
+VPCNT(vpcnt_h, 16, UH, ctpop16)
+VPCNT(vpcnt_w, 32, UW, ctpop32)
+VPCNT(vpcnt_d, 64, UD, ctpop64)
