s390x/tcg: Implement VECTOR FP CONVERT TO FIXED 64-BIT

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>

4 files changed, 30 insertions, 0 deletions

diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index 6fd996e..9893c67 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -270,6 +270,8 @@ DEF_HELPER_FLAGS_4(gvec_vcdg64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 DEF_HELPER_FLAGS_4(gvec_vcdg64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 DEF_HELPER_FLAGS_4(gvec_vcdlg64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 DEF_HELPER_FLAGS_4(gvec_vcdlg64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
+DEF_HELPER_FLAGS_4(gvec_vcgd64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
+DEF_HELPER_FLAGS_4(gvec_vcgd64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 
 #ifndef CONFIG_USER_ONLY
 DEF_HELPER_3(servc, i32, env, i64, i64)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 465b36d..97c62a8 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -1222,6 +1222,8 @@
     F(0xe7c3, VCDG,    VRR_a, V,   0, 0, 0, 0, vcdg, 0, IF_VEC)
 /* VECTOR FP CONVERT FROM LOGICAL 64-BIT */
     F(0xe7c1, VCDLG,   VRR_a, V,   0, 0, 0, 0, vcdg, 0, IF_VEC)
+/* VECTOR FP CONVERT TO FIXED 64-BIT */
+    F(0xe7c2, VCGD,    VRR_a, V,   0, 0, 0, 0, vcdg, 0, IF_VEC)
 
 #ifndef CONFIG_USER_ONLY
 /* COMPARE AND SWAP AND PURGE */
diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c
index fa755cd..a42de2f 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -2660,6 +2660,9 @@ static DisasJumpType op_vcdg(DisasContext *s, DisasOps *o)
     case 0xc1:
         fn = se ? gen_helper_gvec_vcdlg64s : gen_helper_gvec_vcdlg64;
         break;
+    case 0xc2:
+        fn = se ? gen_helper_gvec_vcgd64s : gen_helper_gvec_vcgd64;
+        break;
     default:
         g_assert_not_reached();
     }
diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c
index 181378e..e7251ac 100644
--- a/target/s390x/vec_fpu_helper.c
+++ b/target/s390x/vec_fpu_helper.c
@@ -323,3 +323,26 @@ void HELPER(gvec_vcdlg64s)(void *v1, const void *v2, CPUS390XState *env,
 
     vop64_2(v1, v2, env, true, XxC, erm, vcdlg64, GETPC());
 }
+
+static uint64_t vcgd64(uint64_t a, float_status *s)
+{
+    return float64_to_int64(a, s);
+}
+
+void HELPER(gvec_vcgd64)(void *v1, const void *v2, CPUS390XState *env,
+                         uint32_t desc)
+{
+    const uint8_t erm = extract32(simd_data(desc), 4, 4);
+    const bool XxC = extract32(simd_data(desc), 2, 1);
+
+    vop64_2(v1, v2, env, false, XxC, erm, vcgd64, GETPC());
+}
+
+void HELPER(gvec_vcgd64s)(void *v1, const void *v2, CPUS390XState *env,
+                          uint32_t desc)
+{
+    const uint8_t erm = extract32(simd_data(desc), 4, 4);
+    const bool XxC = extract32(simd_data(desc), 2, 1);
+
+    vop64_2(v1, v2, env, true, XxC, erm, vcgd64, GETPC());
+}