1 files changed, 0 insertions, 83 deletions
diff --git a/contrib/arm-optimized-routines/math/v_expf.c b/contrib/arm-optimized-routines/math/v_expf.c
deleted file mode 100644
index d403e00534f0..000000000000
--- a/contrib/arm-optimized-routines/math/v_expf.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Single-precision vector e^x function.
- *
- * Copyright (c) 2019, Arm Limited.
- * SPDX-License-Identifier: MIT
- */
-
-#include "mathlib.h"
-#include "v_math.h"
-#if V_SUPPORTED
-
-static const float Poly[] = {
-  /* maxerr: 1.45358 +0.5 ulp.  */
-  0x1.0e4020p-7f,
-  0x1.573e2ep-5f,
-  0x1.555e66p-3f,
-  0x1.fffdb6p-2f,
-  0x1.ffffecp-1f,
-};
-#define C0 v_f32 (Poly[0])
-#define C1 v_f32 (Poly[1])
-#define C2 v_f32 (Poly[2])
-#define C3 v_f32 (Poly[3])
-#define C4 v_f32 (Poly[4])
-
-#define Shift v_f32 (0x1.8p23f)
-#define InvLn2 v_f32 (0x1.715476p+0f)
-#define Ln2hi v_f32 (0x1.62e4p-1f)
-#define Ln2lo v_f32 (0x1.7f7d1cp-20f)
-
-VPCS_ATTR
-static v_f32_t
-specialcase (v_f32_t poly, v_f32_t n, v_u32_t e, v_f32_t absn, v_u32_t cmp1, v_f32_t scale)
-{
-  /* 2^n may overflow, break it up into s1*s2.  */
-  v_u32_t b = v_cond_u32 (n <= v_f32 (0.0f)) & v_u32 (0x82000000);
-  v_f32_t s1 = v_as_f32_u32 (v_u32 (0x7f000000) + b);
-  v_f32_t s2 = v_as_f32_u32 (e - b);
-  v_u32_t cmp2 = v_cond_u32 (absn > v_f32 (192.0f));
-  v_u32_t r2 = v_as_u32_f32 (s1 * s1);
-  v_u32_t r1 = v_as_u32_f32 (v_fma_f32 (poly, s2, s2) * s1);
-  /* Similar to r1 but avoids double rounding in the subnormal range.  */
-  v_u32_t r0 = v_as_u32_f32 (v_fma_f32 (poly, scale, scale));
-  return v_as_f32_u32 ((cmp2 & r2) | (~cmp2 & cmp1 & r1) | (~cmp1 & r0));
-}
-
-VPCS_ATTR
-v_f32_t
-V_NAME(expf) (v_f32_t x)
-{
-  v_f32_t n, r, r2, scale, p, q, poly, absn, z;
-  v_u32_t cmp, e;
-
-  /* exp(x) = 2^n (1 + poly(r)), with 1 + poly(r) in [1/sqrt(2),sqrt(2)]
-     x = ln2*n + r, with r in [-ln2/2, ln2/2].  */
-#if 1
-  z = v_fma_f32 (x, InvLn2, Shift);
-  n = z - Shift;
-  r = v_fma_f32 (n, -Ln2hi, x);
-  r = v_fma_f32 (n, -Ln2lo, r);
-  e = v_as_u32_f32 (z) << 23;
-#else
-  z = x * InvLn2;
-  n = v_round_f32 (z);
-  r = v_fma_f32 (n, -Ln2hi, x);
-  r = v_fma_f32 (n, -Ln2lo, r);
-  e = v_as_u32_s32 (v_round_s32 (z)) << 23;
-#endif
-  scale = v_as_f32_u32 (e + v_u32 (0x3f800000));
-  absn = v_abs_f32 (n);
-  cmp = v_cond_u32 (absn > v_f32 (126.0f));
-  r2 = r * r;
-  p = v_fma_f32 (C0, r, C1);
-  q = v_fma_f32 (C2, r, C3);
-  q = v_fma_f32 (p, r2, q);
-  p = C4 * r;
-  poly = v_fma_f32 (q, r2, p);
-  if (unlikely (v_any_u32 (cmp)))
-    return specialcase (poly, n, e, absn, cmp, scale);
-  return v_fma_f32 (poly, scale, scale);
-}
-VPCS_ALIAS
-#endif