1 files changed, 0 insertions, 76 deletions
diff --git a/pl/math/expf.c b/pl/math/expf.c
deleted file mode 100644
index cd3cfa925c64..000000000000
--- a/pl/math/expf.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Single-precision e^x function.
- *
- * Copyright (c) 2017-2023, Arm Limited.
- * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
- */
-
-#include <math.h>
-#include <stdint.h>
-#include "math_config.h"
-
-/*
-EXPF_TABLE_BITS = 5
-EXPF_POLY_ORDER = 3
-
-ULP error: 0.502 (nearest rounding.)
-Relative error: 1.69 * 2^-34 in [-ln2/64, ln2/64] (before rounding.)
-Wrong count: 170635 (all nearest rounding wrong results with fma.)
-Non-nearest ULP error: 1 (rounded ULP error)
-*/
-
-#define N (1 << EXPF_TABLE_BITS)
-#define InvLn2N __expf_data.invln2_scaled
-#define T __expf_data.tab
-#define C __expf_data.poly_scaled
-
-static inline uint32_t
-top12 (float x)
-{
-  return asuint (x) >> 20;
-}
-
-float
-optr_aor_exp_f32 (float x)
-{
-  uint32_t abstop;
-  uint64_t ki, t;
-  /* double_t for better performance on targets with FLT_EVAL_METHOD==2.  */
-  double_t kd, xd, z, r, r2, y, s;
-
-  xd = (double_t) x;
-  abstop = top12 (x) & 0x7ff;
-  if (unlikely (abstop >= top12 (88.0f)))
-    {
-      /* |x| >= 88 or x is nan.  */
-      if (asuint (x) == asuint (-INFINITY))
-	return 0.0f;
-      if (abstop >= top12 (INFINITY))
-	return x + x;
-      if (x > 0x1.62e42ep6f) /* x > log(0x1p128) ~= 88.72 */
-	return __math_oflowf (0);
-      if (x < -0x1.9fe368p6f) /* x < log(0x1p-150) ~= -103.97 */
-	return __math_uflowf (0);
-    }
-
-  /* x*N/Ln2 = k + r with r in [-1/2, 1/2] and int k.  */
-  z = InvLn2N * xd;
-
-  /* Round and convert z to int, the result is in [-150*N, 128*N] and
-     ideally nearest int is used, otherwise the magnitude of r can be
-     bigger which gives larger approximation error.  */
-  kd = round (z);
-  ki = lround (z);
-  r = z - kd;
-
-  /* exp(x) = 2^(k/N) * 2^(r/N) ~= s * (C0*r^3 + C1*r^2 + C2*r + 1) */
-  t = T[ki % N];
-  t += ki << (52 - EXPF_TABLE_BITS);
-  s = asdouble (t);
-  z = C[0] * r + C[1];
-  r2 = r * r;
-  y = C[2] * r + 1;
-  y = z * r2 + y;
-  y = y * s;
-  return eval_as_float (y);
-}