s390x/tcg: Implement VECTOR FP SQUARE ROOT

Simulate XxC=0 and ERM=0 (current mode), so we can use the existing
helper function.

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 7993a6fafa..18773eb559 100644
--- a/target/s390x/vec_fpu_helper.c
+++ b/target/s390x/vec_fpu_helper.c
@@ -552,3 +552,20 @@ void HELPER(gvec_vfms64s)(void *v1, const void *v2, const void *v3,
 {
     vfma64(v1, v2, v3, v4, env, true, float_muladd_negate_c, GETPC());
 }
+
+static uint64_t vfsq64(uint64_t a, float_status *s)
+{
+    return float64_sqrt(a, s);
+}
+
+void HELPER(gvec_vfsq64)(void *v1, const void *v2, CPUS390XState *env,
+                         uint32_t desc)
+{
+    vop64_2(v1, v2, env, false, false, 0, vfsq64, GETPC());
+}
+
+void HELPER(gvec_vfsq64s)(void *v1, const void *v2, CPUS390XState *env,
+                          uint32_t desc)
+{
+    vop64_2(v1, v2, env, true, false, 0, vfsq64, GETPC());
+}