1 files changed, 0 insertions, 73 deletions
diff --git a/pl/math/atan_2u5.c b/pl/math/atan_2u5.c
deleted file mode 100644
index ee4770101758..000000000000
--- a/pl/math/atan_2u5.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Double-precision atan(x) function.
- *
- * Copyright (c) 2022-2023, Arm Limited.
- * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
- */
-
-#include "pl_sig.h"
-#include "pl_test.h"
-#include "atan_common.h"
-
-#define AbsMask 0x7fffffffffffffff
-#define PiOver2 0x1.921fb54442d18p+0
-#define TinyBound 0x3e1 /* top12(asuint64(0x1p-30)).  */
-#define BigBound 0x434	/* top12(asuint64(0x1p53)).  */
-#define OneTop 0x3ff
-
-/* Fast implementation of double-precision atan.
-   Based on atan(x) ~ shift + z + z^3 * P(z^2) with reduction to [0,1] using
-   z=1/x and shift = pi/2. Maximum observed error is 2.27 ulps:
-   atan(0x1.0005af27c23e9p+0) got 0x1.9225645bdd7c1p-1
-			     want 0x1.9225645bdd7c3p-1.  */
-double
-atan (double x)
-{
-  uint64_t ix = asuint64 (x);
-  uint64_t sign = ix & ~AbsMask;
-  uint64_t ia = ix & AbsMask;
-  uint32_t ia12 = ia >> 52;
-
-  if (unlikely (ia12 >= BigBound || ia12 < TinyBound))
-    {
-      if (ia12 < TinyBound)
-	/* Avoid underflow by returning x.  */
-	return x;
-      if (ia > 0x7ff0000000000000)
-	/* Propagate NaN.  */
-	return __math_invalid (x);
-      /* atan(x) rounds to PiOver2 for large x.  */
-      return asdouble (asuint64 (PiOver2) ^ sign);
-    }
-
-  double z, az, shift;
-  if (ia12 >= OneTop)
-    {
-      /* For x > 1, use atan(x) = pi / 2 + atan(-1 / x).  */
-      z = -1.0 / x;
-      shift = PiOver2;
-      /* Use absolute value only when needed (odd powers of z).  */
-      az = -fabs (z);
-    }
-  else
-    {
-      /* For x < 1, approximate atan(x) directly.  */
-      z = x;
-      shift = 0;
-      az = asdouble (ia);
-    }
-
-  /* Calculate polynomial, shift + z + z^3 * P(z^2).  */
-  double y = eval_poly (z, az, shift);
-  /* Copy sign.  */
-  return asdouble (asuint64 (y) ^ sign);
-}
-
-PL_SIG (S, D, 1, atan, -10.0, 10.0)
-PL_TEST_ULP (atan, 1.78)
-PL_TEST_INTERVAL (atan, 0, 0x1p-30, 10000)
-PL_TEST_INTERVAL (atan, -0, -0x1p-30, 1000)
-PL_TEST_INTERVAL (atan, 0x1p-30, 0x1p53, 900000)
-PL_TEST_INTERVAL (atan, -0x1p-30, -0x1p53, 90000)
-PL_TEST_INTERVAL (atan, 0x1p53, inf, 10000)
-PL_TEST_INTERVAL (atan, -0x1p53, -inf, 1000)