1 files changed, 67 insertions, 0 deletions
diff --git a/math/aarch64/advsimd/sincos.c b/math/aarch64/advsimd/sincos.c
new file mode 100644
index 000000000000..83bfa45efa98
--- /dev/null
+++ b/math/aarch64/advsimd/sincos.c
@@ -0,0 +1,67 @@
+/*
+ * Double-precision vector sincos function.
+ *
+ * Copyright (c) 2023-2024, Arm Limited.
+ * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
+ */
+
+/* Define _GNU_SOURCE in order to include sincos declaration. If building
+   pre-GLIBC 2.1, or on a non-GNU conforming system, this routine will need to
+   be linked against the scalar sincosf from math/.  */
+#define _GNU_SOURCE
+#include <math.h>
+
+#include "v_math.h"
+#include "test_defs.h"
+#include "v_sincos_common.h"
+
+/* sincos not available for all scalar libm implementations.  */
+#if defined(_MSC_VER) || !defined(__GLIBC__)
+static void
+sincos (double x, double *out_sin, double *out_cos)
+{
+  *out_sin = sin (x);
+  *out_cos = cos (x);
+}
+#endif
+
+static void VPCS_ATTR NOINLINE
+special_case (float64x2_t x, uint64x2_t special, double *out_sin,
+	      double *out_cos)
+{
+  if (special[0])
+    sincos (x[0], out_sin, out_cos);
+  if (special[1])
+    sincos (x[1], out_sin + 1, out_cos + 1);
+}
+
+/* Double-precision vector function allowing calculation of both sin and cos in
+   one function call, using shared argument reduction and separate polynomials.
+   Largest observed error is for sin, 3.22 ULP:
+   v_sincos_sin (0x1.d70eef40f39b1p+12) got -0x1.ffe9537d5dbb7p-3
+				       want -0x1.ffe9537d5dbb4p-3.  */
+VPCS_ATTR void
+_ZGVnN2vl8l8_sincos (float64x2_t x, double *out_sin, double *out_cos)
+{
+  const struct v_sincos_data *d = ptr_barrier (&v_sincos_data);
+  uint64x2_t special = check_ge_rangeval (x, d);
+
+  float64x2x2_t sc = v_sincos_inline (x, d);
+
+  vst1q_f64 (out_sin, sc.val[0]);
+  vst1q_f64 (out_cos, sc.val[1]);
+
+  if (unlikely (v_any_u64 (special)))
+    special_case (x, special, out_sin, out_cos);
+}
+
+TEST_DISABLE_FENV (_ZGVnN2v_sincos_cos)
+TEST_DISABLE_FENV (_ZGVnN2v_sincos_sin)
+TEST_ULP (_ZGVnN2v_sincos_sin, 2.73)
+TEST_ULP (_ZGVnN2v_sincos_cos, 2.73)
+#define V_SINCOS_INTERVAL(lo, hi, n)                                          \
+  TEST_INTERVAL (_ZGVnN2v_sincos_sin, lo, hi, n)                              \
+  TEST_INTERVAL (_ZGVnN2v_sincos_cos, lo, hi, n)
+V_SINCOS_INTERVAL (0, 0x1p-31, 50000)
+V_SINCOS_INTERVAL (0x1p-31, 0x1p23, 500000)
+V_SINCOS_INTERVAL (0x1p23, inf, 10000)