target/arm: Implement SVE copy to vector (predicated)

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180613015641.5667-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Author: rth7680

target/arm/sve.decode

@@ -450,6 +450,12 @@ LASTB_v         00000101 .. 10001 1 100 ... ..... .....         @rd_pg_rn
 LASTA_r         00000101 .. 10000 0 101 ... ..... .....         @rd_pg_rn
 LASTB_r         00000101 .. 10000 1 101 ... ..... .....         @rd_pg_rn
 
+# SVE copy element from SIMD&FP scalar register
+CPY_m_v         00000101 .. 100000 100 ... ..... .....          @rd_pg_rn
+
+# SVE copy element from general register to vector (predicated)
+CPY_m_r         00000101 .. 101000 101 ... ..... .....          @rd_pg_rn
+
 ### SVE Predicate Logical Operations Group
 
 # SVE predicate logical operations

target/arm/translate-sve.c

@@ -2624,6 +2624,25 @@ static bool trans_LASTB_r(DisasContext *s, arg_rpr_esz *a, uint32_t insn)
     return do_last_general(s, a, true);
 }
 
+static bool trans_CPY_m_r(DisasContext *s, arg_rpr_esz *a, uint32_t insn)
+{
+    if (sve_access_check(s)) {
+        do_cpy_m(s, a->esz, a->rd, a->rd, a->pg, cpu_reg_sp(s, a->rn));
+    }
+    return true;
+}
+
+static bool trans_CPY_m_v(DisasContext *s, arg_rpr_esz *a, uint32_t insn)
+{
+    if (sve_access_check(s)) {
+        int ofs = vec_reg_offset(s, a->rn, 0, a->esz);
+        TCGv_i64 t = load_esz(cpu_env, ofs, a->esz);
+        do_cpy_m(s, a->esz, a->rd, a->rd, a->pg, t);
+        tcg_temp_free_i64(t);
+    }
+    return true;
+}
+
 /*
  *** SVE Memory - 32-bit Gather and Unsized Contiguous Group
  */