1 files changed, 0 insertions, 116 deletions
diff --git a/core/nds32/math.c b/core/nds32/math.c
deleted file mode 100644
index 496fcc0e5d..0000000000
--- a/core/nds32/math.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/* Copyright 2017 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "common.h"
-
-#ifdef CONFIG_FPU
-union ieee_float_shape_type {
-	float value;
-	uint32_t word;
-};
-
-/* Get a 32 bit int from a float.  */
-#define GET_FLOAT_WORD(i, d) \
-	do { \
-		union ieee_float_shape_type gf_u; \
-		gf_u.value = (d); \
-		(i) = gf_u.word; \
-	} while (0)
-
-/* Set a float from a 32 bit int. */
-#define SET_FLOAT_WORD(d, i) \
-	do { \
-		union ieee_float_shape_type sf_u; \
-		sf_u.word = (i); \
-		(d) = sf_u.value; \
-	} while (0)
-
-float fabsf(float x)
-{
-	uint32_t ix;
-
-	GET_FLOAT_WORD(ix, x);
-	SET_FLOAT_WORD(x, (ix & 0x7fffffff));
-
-	return x;
-}
-
-#define FLT_UWORD_IS_ZERO(x) ((x) == 0)
-#define FLT_UWORD_IS_SUBNORMAL(x) ((x) < 0x00800000L)
-#define FLT_UWORD_IS_FINITE(x) ((x) < 0x7f800000L)
-
-static const float one = 1.0f, tiny = 1.0e-30f;
-static float __ieee754_sqrtf(float x)
-{
-	float z;
-	uint32_t r, hx;
-	int32_t ix, s, q, m, t, i;
-
-	GET_FLOAT_WORD(ix, x);
-	hx = ix & 0x7fffffff;
-
-	/*
-	 * take care of Inf and NaN
-	 * sqrt(NaN)=NaN, sqrt(+inf)=+inf, sqrt(-inf)=sNaN
-	 */
-	if (!FLT_UWORD_IS_FINITE(hx))
-		return x * x + x;
-	/* take care of zero and -ves */
-	if (FLT_UWORD_IS_ZERO(hx))
-		return x;
-	if (ix < 0)
-		return (x - x) / (x - x);
-
-	m = (ix >> 23);
-	if (FLT_UWORD_IS_SUBNORMAL(hx)) {
-		for (i = 0; (ix & 0x00800000L) == 0; i++)
-			ix <<= 1;
-		m -= i - 1;
-	}
-
-	m -= 127;
-	ix = (ix & 0x007fffffL) | 0x00800000L;
-	if (m & 1)
-		ix += ix;
-
-	m >>= 1;
-	ix += ix;
-	q = s = 0;
-	r = 0x01000000L;
-
-	while (r != 0) {
-		t = s + r;
-		if (t <= ix) {
-			s = t + r;
-			ix -= t;
-			q += r;
-		}
-		ix += ix;
-		r >>= 1;
-	}
-
-	if (ix != 0) {
-		z = one - tiny;
-		if (z >= one) {
-			z = one + tiny;
-			if (z > one)
-				q += 2;
-			else
-				q += (q & 1);
-		}
-	}
-
-	ix = (q >> 1) + 0x3f000000L;
-	ix += (m << 23);
-	SET_FLOAT_WORD(z, ix);
-
-	return z;
-}
-
-float sqrtf(float x)
-{
-	return __ieee754_sqrtf(x);
-}
-#endif