[RFC 30/65] target/riscv: rvv-0.9: floating-point scalar move instructions

[frank . chang]

From: Frank Chang <frank.chang@sifive.com>

Signed-off-by: Frank Chang <frank.chang@sifive.com>
---
 target/riscv/insn32.decode              |  4 +-
 target/riscv/insn_trans/trans_rvv.inc.c | 66 ++++++++++++-------------
 2 files changed, 35 insertions(+), 35 deletions(-)

diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index ef53df7c73..4be1b88e2d 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -583,8 +583,8 @@ vid_v           010100 . 00000 10001 010 ..... 1010111 
@r1_vm
 vmv_x_s         010000 1 ..... 00000 010 ..... 1010111 @r2rd
 vmv_s_x         010000 1 00000 ..... 110 ..... 1010111 @r2
 vext_x_v        001100 1 ..... ..... 010 ..... 1010111 @r
-vfmv_f_s        001100 1 ..... 00000 001 ..... 1010111 @r2rd
-vfmv_s_f        001101 1 00000 ..... 101 ..... 1010111 @r2
+vfmv_f_s        010000 1 ..... 00000 001 ..... 1010111 @r2rd
+vfmv_s_f        010000 1 00000 ..... 101 ..... 1010111 @r2
 vslideup_vx     001110 . ..... ..... 100 ..... 1010111 @r_vm
 vslideup_vi     001110 . ..... ..... 011 ..... 1010111 @r_vm
 vslide1up_vx    001110 . ..... ..... 110 ..... 1010111 @r_vm
diff --git a/target/riscv/insn_trans/trans_rvv.inc.c 
b/target/riscv/insn_trans/trans_rvv.inc.c
index 801b9319a5..fcbcfda050 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -3038,50 +3038,50 @@ done:
 /* Floating-Point Scalar Move Instructions */
 static bool trans_vfmv_f_s(DisasContext *s, arg_vfmv_f_s *a)
 {
-    if (!s->vill && has_ext(s, RVF) &&
-        (s->mstatus_fs != 0) && (s->sew != 0)) {
-        unsigned int len = 8 << s->sew;
-
-        vec_element_loadi(s, cpu_fpr[a->rd], a->rs2, 0);
-        if (len < 64) {
-            tcg_gen_ori_i64(cpu_fpr[a->rd], cpu_fpr[a->rd],
-                            MAKE_64BIT_MASK(len, 64 - len));
-        }
+    REQUIRE_RVV;
+    VEXT_CHECK_ISA_ILL(s);
+    require(has_ext(s, RVF));
+    require(s->mstatus_fs != 0);
+    require(s->sew != 0);
 
-        mark_fs_dirty(s);
-        return true;
+    unsigned int len = 8 << s->sew;
+
+    vec_element_loadi(s, cpu_fpr[a->rd], a->rs2, 0, false);
+    if (len < 64) {
+        tcg_gen_ori_i64(cpu_fpr[a->rd], cpu_fpr[a->rd],
+                        MAKE_64BIT_MASK(len, 64 - len));
     }
-    return false;
+
+    mark_fs_dirty(s);
+    return true;
 }
 
 /* vfmv.s.f vd, rs1 # vd[0] = rs1 (vs2=0) */
 static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a)
 {
-    if (!s->vill && has_ext(s, RVF) && (s->sew != 0)) {
-        TCGv_i64 t1;
-        /* The instructions ignore LMUL and vector register group. */
-        uint32_t vlmax = s->vlen >> 3;
+    REQUIRE_RVV;
+    VEXT_CHECK_ISA_ILL(s);
+    require(has_ext(s, RVF));
+    require(s->sew != 0);
 
-        /* if vl == 0, skip vector register write back */
-        TCGLabel *over = gen_new_label();
-        tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over);
+    /* The instructions ignore LMUL and vector register group. */
+    TCGv_i64 t1;
+    TCGLabel *over = gen_new_label();
 
-        /* zeroed all elements */
-        tcg_gen_gvec_dup_imm(SEW64, vreg_ofs(s, a->rd), vlmax, vlmax, 0);
+    /* if vl == 0, skip vector register write back */
+    tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over);
 
-        /* NaN-box f[rs1] as necessary for SEW */
-        t1 = tcg_temp_new_i64();
-        if (s->sew == MO_64 && !has_ext(s, RVD)) {
-            tcg_gen_ori_i64(t1, cpu_fpr[a->rs1], MAKE_64BIT_MASK(32, 32));
-        } else {
-            tcg_gen_mov_i64(t1, cpu_fpr[a->rs1]);
-        }
-        vec_element_storei(s, a->rd, 0, t1);
-        tcg_temp_free_i64(t1);
-        gen_set_label(over);
-        return true;
+    /* NaN-box f[rs1] as necessary for SEW */
+    t1 = tcg_temp_new_i64();
+    if (s->sew == MO_64 && !has_ext(s, RVD)) {
+        tcg_gen_ori_i64(t1, cpu_fpr[a->rs1], MAKE_64BIT_MASK(32, 32));
+    } else {
+        tcg_gen_mov_i64(t1, cpu_fpr[a->rs1]);
     }
-    return false;
+    vec_element_storei(s, a->rd, 0, t1);
+    tcg_temp_free_i64(t1);
+    gen_set_label(over);
+    return true;
 }
 
 /* Vector Slide Instructions */
-- 
2.17.1