target/loongarch: Implement xvreplgr2vr

This patch includes:
- XVREPLGR2VR.{B/H/W/D}.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230914022645.1151356-16-gaosong@loongson.cn>

target/loongarch/disas.c

@@ -1708,6 +1708,11 @@ static void output_vvv_x(DisasContext *ctx, arg_vvv * a, const char *mnemonic)
     output(ctx, mnemonic, "x%d, x%d, x%d", a->vd, a->vj, a->vk);
 }
 
+static void output_vr_x(DisasContext *ctx, arg_vr *a, const char *mnemonic)
+{
+    output(ctx, mnemonic, "x%d, r%d", a->vd, a->rj);
+}
+
 INSN_LASX(xvadd_b,           vvv)
 INSN_LASX(xvadd_h,           vvv)
 INSN_LASX(xvadd_w,           vvv)
@@ -1718,3 +1723,8 @@ INSN_LASX(xvsub_h,           vvv)
 INSN_LASX(xvsub_w,           vvv)
 INSN_LASX(xvsub_d,           vvv)
 INSN_LASX(xvsub_q,           vvv)
+
+INSN_LASX(xvreplgr2vr_b,     vr)
+INSN_LASX(xvreplgr2vr_h,     vr)
+INSN_LASX(xvreplgr2vr_w,     vr)
+INSN_LASX(xvreplgr2vr_d,     vr)

target/loongarch/insn_trans/trans_vec.c.inc

@@ -4400,27 +4400,38 @@ static bool trans_vpickve2gr_du(DisasContext *ctx, arg_rv_i *a)
     return true;
 }
 
-static bool gvec_dup(DisasContext *ctx, arg_vr *a, MemOp mop)
+static bool gvec_dup_vl(DisasContext *ctx, arg_vr *a,
+                        uint32_t oprsz, MemOp mop)
 {
     TCGv src = gpr_src(ctx, a->rj, EXT_NONE);
 
-    if (!avail_LSX(ctx)) {
-        return false;
-    }
-
-    if (!check_vec(ctx, 16)) {
+    if (!check_vec(ctx, oprsz)) {
         return true;
     }
 
     tcg_gen_gvec_dup_i64(mop, vec_full_offset(a->vd),
-                         16, ctx->vl/8, src);
+                         oprsz, ctx->vl/8, src);
     return true;
 }
 
+static bool gvec_dup(DisasContext *ctx, arg_vr *a, MemOp mop)
+{
+    return gvec_dup_vl(ctx, a, 16, mop);
+}
+
+static bool gvec_dupx(DisasContext *ctx, arg_vr *a, MemOp mop)
+{
+    return gvec_dup_vl(ctx, a, 32, mop);
+}
+
 TRANS(vreplgr2vr_b, LSX, gvec_dup, MO_8)
 TRANS(vreplgr2vr_h, LSX, gvec_dup, MO_16)
 TRANS(vreplgr2vr_w, LSX, gvec_dup, MO_32)
 TRANS(vreplgr2vr_d, LSX, gvec_dup, MO_64)
+TRANS(xvreplgr2vr_b, LASX, gvec_dupx, MO_8)
+TRANS(xvreplgr2vr_h, LASX, gvec_dupx, MO_16)
+TRANS(xvreplgr2vr_w, LASX, gvec_dupx, MO_32)
+TRANS(xvreplgr2vr_d, LASX, gvec_dupx, MO_64)
 
 static bool trans_vreplvei_b(DisasContext *ctx, arg_vv_i *a)
 {

target/loongarch/insns.decode

@@ -1310,3 +1310,8 @@ xvsub_h          0111 01000000 11001 ..... ..... .....    @vvv
 xvsub_w          0111 01000000 11010 ..... ..... .....    @vvv
 xvsub_d          0111 01000000 11011 ..... ..... .....    @vvv
 xvsub_q          0111 01010010 11011 ..... ..... .....    @vvv
+
+xvreplgr2vr_b    0111 01101001 11110 00000 ..... .....    @vr
+xvreplgr2vr_h    0111 01101001 11110 00001 ..... .....    @vr
+xvreplgr2vr_w    0111 01101001 11110 00010 ..... .....    @vr
+xvreplgr2vr_d    0111 01101001 11110 00011 ..... .....    @vr