[PATCH v1 23/46] target/loognarch: Implement xvldi

[Song Gao]

This patch includes:
- XVLDI.

Signed-off-by: Song Gao <gaosong@loongson.cn>
---
 target/loongarch/disas.c                     |  7 +++++++
 target/loongarch/insn_trans/trans_lasx.c.inc | 21 ++++++++++++++++++++
 target/loongarch/insns.decode                |  5 ++++-
 3 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/target/loongarch/disas.c b/target/loongarch/disas.c
index 5a3c14f33d..82a9826eb7 100644
--- a/target/loongarch/disas.c
+++ b/target/loongarch/disas.c
@@ -1703,6 +1703,11 @@ static bool trans_##insn(DisasContext *ctx, arg_##type * 
a) \
     return true;                                            \
 }
 
+static void output_x_i(DisasContext *ctx, arg_x_i *a, const char *mnemonic)
+{
+    output(ctx, mnemonic, "x%d, 0x%x", a->xd, a->imm);
+}
+
 static void output_xxx(DisasContext *ctx, arg_xxx * a, const char *mnemonic)
 {
     output(ctx, mnemonic, "x%d, x%d, x%d", a->xd, a->xj, a->xk);
@@ -2021,6 +2026,8 @@ INSN_LASX(xvmskltz_d,        xx)
 INSN_LASX(xvmskgez_b,        xx)
 INSN_LASX(xvmsknz_b,         xx)
 
+INSN_LASX(xvldi,             x_i)
+
 INSN_LASX(xvreplgr2vr_b,     xr)
 INSN_LASX(xvreplgr2vr_h,     xr)
 INSN_LASX(xvreplgr2vr_w,     xr)
diff --git a/target/loongarch/insn_trans/trans_lasx.c.inc 
b/target/loongarch/insn_trans/trans_lasx.c.inc
index b0aad21a9d..bf277e1fd9 100644
--- a/target/loongarch/insn_trans/trans_lasx.c.inc
+++ b/target/loongarch/insn_trans/trans_lasx.c.inc
@@ -1914,6 +1914,27 @@ TRANS(xvmskltz_d, gen_xx, gen_helper_xvmskltz_d)
 TRANS(xvmskgez_b, gen_xx, gen_helper_xvmskgez_b)
 TRANS(xvmsknz_b, gen_xx, gen_helper_xvmsknz_b)
 
+static bool trans_xvldi(DisasContext *ctx, arg_xvldi * a)
+{
+    int sel, vece;
+    uint64_t value;
+    CHECK_ASXE;
+
+    sel = (a->imm >> 12) & 0x1;
+
+    if (sel) {
+        value = vldi_get_value(ctx, a->imm);
+        vece = MO_64;
+    } else {
+        value = ((int32_t)(a->imm << 22)) >> 22;
+        vece = (a->imm >> 10) & 0x3;
+    }
+
+    tcg_gen_gvec_dup_i64(vece, vec_full_offset(a->xd), 32, ctx->vl / 8,
+                         tcg_constant_i64(value));
+    return true;
+}
+
 static bool gvec_dupx(DisasContext *ctx, arg_xr *a, MemOp mop)
 {
     TCGv src = gpr_src(ctx, a->rj, EXT_NONE);
diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode
index b792a68fdf..fbd0dd229a 100644
--- a/target/loongarch/insns.decode
+++ b/target/loongarch/insns.decode
@@ -1305,11 +1305,13 @@ vstelm_b         0011 000110 .... ........ ..... .....  
  @vr_i8i4
 &xxx          xd xj xk
 &xr           xd rj
 &xx_i         xd xj imm
+&x_i          xd imm
 
 #
 # LASX Formats
 #
 
+@x_i13                    .... ........ .. imm:13 xd:5    &x_i
 @xx                .... ........ ..... ..... xj:5 xd:5    &xx
 @xxx                .... ........ ..... xk:5 xj:5 xd:5    &xxx
 @xr                .... ........ ..... ..... rj:5 xd:5    &xr
@@ -1319,7 +1321,6 @@ vstelm_b         0011 000110 .... ........ ..... .....    
@vr_i8i4
 @xx_ui5            .... ........ ..... imm:5 xj:5 xd:5    &xx_i
 @xx_ui6             .... ........ .... imm:6 xj:5 xd:5    &xx_i
 
-
 xvadd_b          0111 01000000 10100 ..... ..... .....    @xxx
 xvadd_h          0111 01000000 10101 ..... ..... .....    @xxx
 xvadd_w          0111 01000000 10110 ..... ..... .....    @xxx
@@ -1625,6 +1626,8 @@ xvmskltz_d       0111 01101001 11000 10011 ..... .....    
@xx
 xvmskgez_b       0111 01101001 11000 10100 ..... .....    @xx
 xvmsknz_b        0111 01101001 11000 11000 ..... .....    @xx
 
+xvldi            0111 01111110 00 ............. .....     @x_i13
+
 xvreplgr2vr_b    0111 01101001 11110 00000 ..... .....    @xr
 xvreplgr2vr_h    0111 01101001 11110 00001 ..... .....    @xr
 xvreplgr2vr_w    0111 01101001 11110 00010 ..... .....    @xr
-- 
2.39.1