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/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)
