s390x/tcg: Implement VECTOR FP SUBTRACT

Similar to VECTOR FP ADD.

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

1 files changed, 17 insertions, 0 deletions

diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c
index 18773eb559..ccdc975628 100644
--- a/target/s390x/vec_fpu_helper.c
+++ b/target/s390x/vec_fpu_helper.c
@@ -569,3 +569,20 @@ void HELPER(gvec_vfsq64s)(void *v1, const void *v2, CPUS390XState *env,
 {
     vop64_2(v1, v2, env, true, false, 0, vfsq64, GETPC());
 }
+
+static uint64_t vfs64(uint64_t a, uint64_t b, float_status *s)
+{
+    return float64_sub(a, b, s);
+}
+
+void HELPER(gvec_vfs64)(void *v1, const void *v2, const void *v3,
+                        CPUS390XState *env, uint32_t desc)
+{
+    vop64_3(v1, v2, v3, env, false, vfs64, GETPC());
+}
+
+void HELPER(gvec_vfs64s)(void *v1, const void *v2, const void *v3,
+                         CPUS390XState *env, uint32_t desc)
+{
+    vop64_3(v1, v2, v3, env, true, vfs64, GETPC());
+}