From 901615320d62a23f8fbf6066ea111bb919ae6d77 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 25 Apr 2014 00:29:50 +0200
Subject: [PATCH] MIPS: math-emu: Remove unused code.

Shrinks the FPU emulator by 4528 bytes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/math-emu/Makefile    | 13 +++---
 arch/mips/math-emu/dp_fint.c   |  8 ----
 arch/mips/math-emu/dp_flong.c  |  8 ----
 arch/mips/math-emu/dp_frexp.c  | 52 ----------------------
 arch/mips/math-emu/dp_logb.c   | 53 -----------------------
 arch/mips/math-emu/dp_modf.c   | 79 ----------------------------------
 arch/mips/math-emu/dp_scalb.c  | 57 ------------------------
 arch/mips/math-emu/dp_simple.c |  8 ----
 arch/mips/math-emu/dp_tint.c   | 13 ------
 arch/mips/math-emu/dp_tlong.c  | 13 ------
 arch/mips/math-emu/ieee754.h   | 53 -----------------------
 arch/mips/math-emu/ieee754m.c  | 55 -----------------------
 arch/mips/math-emu/sp_fint.c   |  9 ----
 arch/mips/math-emu/sp_flong.c  |  9 ----
 arch/mips/math-emu/sp_frexp.c  | 52 ----------------------
 arch/mips/math-emu/sp_logb.c   | 53 -----------------------
 arch/mips/math-emu/sp_modf.c   | 79 ----------------------------------
 arch/mips/math-emu/sp_scalb.c  | 57 ------------------------
 arch/mips/math-emu/sp_simple.c |  8 ----
 arch/mips/math-emu/sp_tint.c   | 13 ------
 arch/mips/math-emu/sp_tlong.c  | 13 ------
 21 files changed, 6 insertions(+), 699 deletions(-)
 delete mode 100644 arch/mips/math-emu/dp_frexp.c
 delete mode 100644 arch/mips/math-emu/dp_logb.c
 delete mode 100644 arch/mips/math-emu/dp_modf.c
 delete mode 100644 arch/mips/math-emu/dp_scalb.c
 delete mode 100644 arch/mips/math-emu/ieee754m.c
 delete mode 100644 arch/mips/math-emu/sp_frexp.c
 delete mode 100644 arch/mips/math-emu/sp_logb.c
 delete mode 100644 arch/mips/math-emu/sp_modf.c
 delete mode 100644 arch/mips/math-emu/sp_scalb.c

diff --git a/arch/mips/math-emu/Makefile b/arch/mips/math-emu/Makefile
index 0803970dfc16..363ce9bd82ea 100644
--- a/arch/mips/math-emu/Makefile
+++ b/arch/mips/math-emu/Makefile
@@ -2,12 +2,11 @@
 # Makefile for the Linux/MIPS kernel FPU emulation.
 #
 
-obj-y	:= cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \
-	   ieee754xcpt.o dp_frexp.o dp_modf.o dp_div.o dp_mul.o dp_sub.o \
-	   dp_add.o dp_fsp.o dp_cmp.o dp_logb.o dp_scalb.o dp_simple.o \
-	   dp_tint.o dp_fint.o dp_tlong.o dp_flong.o sp_frexp.o sp_modf.o \
-	   sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \
-	   sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \
-	   dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o
+obj-y	:= cp1emu.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \
+	   ieee754xcpt.o dp_div.o dp_mul.o dp_sub.o dp_add.o dp_fsp.o \
+	   dp_cmp.o dp_simple.o dp_tint.o dp_fint.o dp_tlong.o dp_flong.o \
+	   sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_simple.o \
+	   sp_tint.o sp_fint.o sp_tlong.o sp_flong.o dp_sqrt.o sp_sqrt.o \
+	   kernel_linkage.o dsemul.o
 
 obj-$(CONFIG_DEBUG_FS) += me-debugfs.o
diff --git a/arch/mips/math-emu/dp_fint.c b/arch/mips/math-emu/dp_fint.c
index 196a010ff09d..98b9d6a14027 100644
--- a/arch/mips/math-emu/dp_fint.c
+++ b/arch/mips/math-emu/dp_fint.c
@@ -59,11 +59,3 @@ union ieee754dp ieee754dp_fint(int x)
 	}
 	return builddp(xs, xe + DP_EBIAS, xm & ~DP_HIDDEN_BIT);
 }
-
-union ieee754dp ieee754dp_funs(unsigned int u)
-{
-	if ((int) u < 0)
-		return ieee754dp_add(ieee754dp_1e31(),
-				     ieee754dp_fint(u & ~(1 << 31)));
-	return ieee754dp_fint(u);
-}
diff --git a/arch/mips/math-emu/dp_flong.c b/arch/mips/math-emu/dp_flong.c
index 915072d82c20..fb5eeaadf253 100644
--- a/arch/mips/math-emu/dp_flong.c
+++ b/arch/mips/math-emu/dp_flong.c
@@ -67,11 +67,3 @@ union ieee754dp ieee754dp_flong(s64 x)
 	}
 	DPNORMRET1(xs, xe, xm, "dp_flong", x);
 }
-
-union ieee754dp ieee754dp_fulong(u64 u)
-{
-	if ((s64) u < 0)
-		return ieee754dp_add(ieee754dp_1e63(),
-				     ieee754dp_flong(u & ~(1ULL << 63)));
-	return ieee754dp_flong(u);
-}
diff --git a/arch/mips/math-emu/dp_frexp.c b/arch/mips/math-emu/dp_frexp.c
deleted file mode 100644
index 25ebce16143e..000000000000
--- a/arch/mips/math-emu/dp_frexp.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/* IEEE754 floating point arithmetic
- * double precision: common utilities
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754dp.h"
-
-/* close to ieeep754dp_logb
-*/
-union ieee754dp ieee754dp_frexp(union ieee754dp x, int *eptr)
-{
-	COMPXDP;
-	ieee754_clearcx();
-	EXPLODEXDP;
-
-	switch (xc) {
-	case IEEE754_CLASS_SNAN:
-	case IEEE754_CLASS_QNAN:
-	case IEEE754_CLASS_INF:
-	case IEEE754_CLASS_ZERO:
-		*eptr = 0;
-		return x;
-	case IEEE754_CLASS_DNORM:
-		DPDNORMX;
-		break;
-	case IEEE754_CLASS_NORM:
-		break;
-	}
-	*eptr = xe + 1;
-	return builddp(xs, -1 + DP_EBIAS, xm & ~DP_HIDDEN_BIT);
-}
diff --git a/arch/mips/math-emu/dp_logb.c b/arch/mips/math-emu/dp_logb.c
deleted file mode 100644
index b412c90355cd..000000000000
--- a/arch/mips/math-emu/dp_logb.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* IEEE754 floating point arithmetic
- * double precision: common utilities
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754dp.h"
-
-union ieee754dp ieee754dp_logb(union ieee754dp x)
-{
-	COMPXDP;
-
-	ieee754_clearcx();
-
-	EXPLODEXDP;
-
-	switch (xc) {
-	case IEEE754_CLASS_SNAN:
-		return ieee754dp_nanxcpt(x, "logb", x);
-	case IEEE754_CLASS_QNAN:
-		return x;
-	case IEEE754_CLASS_INF:
-		return ieee754dp_inf(0);
-	case IEEE754_CLASS_ZERO:
-		return ieee754dp_inf(1);
-	case IEEE754_CLASS_DNORM:
-		DPDNORMX;
-		break;
-	case IEEE754_CLASS_NORM:
-		break;
-	}
-	return ieee754dp_fint(xe);
-}
diff --git a/arch/mips/math-emu/dp_modf.c b/arch/mips/math-emu/dp_modf.c
deleted file mode 100644
index d83ec44f1a33..000000000000
--- a/arch/mips/math-emu/dp_modf.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/* IEEE754 floating point arithmetic
- * double precision: common utilities
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754dp.h"
-
-/* modf function is always exact for a finite number
-*/
-union ieee754dp ieee754dp_modf(union ieee754dp x, union ieee754dp *ip)
-{
-	COMPXDP;
-
-	ieee754_clearcx();
-
-	EXPLODEXDP;
-
-	switch (xc) {
-	case IEEE754_CLASS_SNAN:
-	case IEEE754_CLASS_QNAN:
-	case IEEE754_CLASS_INF:
-	case IEEE754_CLASS_ZERO:
-		*ip = x;
-		return x;
-	case IEEE754_CLASS_DNORM:
-		/* far to small */
-		*ip = ieee754dp_zero(xs);
-		return x;
-	case IEEE754_CLASS_NORM:
-		break;
-	}
-	if (xe < 0) {
-		*ip = ieee754dp_zero(xs);
-		return x;
-	}
-	if (xe >= DP_FBITS) {
-		*ip = x;
-		return ieee754dp_zero(xs);
-	}
-	/* generate ipart mantissa by clearing bottom bits
-	 */
-	*ip = builddp(xs, xe + DP_EBIAS,
-		      ((xm >> (DP_FBITS - xe)) << (DP_FBITS - xe)) &
-		      ~DP_HIDDEN_BIT);
-
-	/* generate fpart mantissa by clearing top bits
-	 * and normalizing (must be able to normalize)
-	 */
-	xm = (xm << (64 - (DP_FBITS - xe))) >> (64 - (DP_FBITS - xe));
-	if (xm == 0)
-		return ieee754dp_zero(xs);
-
-	while ((xm >> DP_FBITS) == 0) {
-		xm <<= 1;
-		xe--;
-	}
-	return builddp(xs, xe + DP_EBIAS, xm & ~DP_HIDDEN_BIT);
-}
diff --git a/arch/mips/math-emu/dp_scalb.c b/arch/mips/math-emu/dp_scalb.c
deleted file mode 100644
index dee37551fae1..000000000000
--- a/arch/mips/math-emu/dp_scalb.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* IEEE754 floating point arithmetic
- * double precision: common utilities
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754dp.h"
-
-union ieee754dp ieee754dp_scalb(union ieee754dp x, int n)
-{
-	COMPXDP;
-
-	ieee754_clearcx();
-
-	EXPLODEXDP;
-
-	switch (xc) {
-	case IEEE754_CLASS_SNAN:
-		return ieee754dp_nanxcpt(x, "scalb", x, n);
-	case IEEE754_CLASS_QNAN:
-	case IEEE754_CLASS_INF:
-	case IEEE754_CLASS_ZERO:
-		return x;
-	case IEEE754_CLASS_DNORM:
-		DPDNORMX;
-		break;
-	case IEEE754_CLASS_NORM:
-		break;
-	}
-	DPNORMRET2(xs, xe + n, xm << 3, "scalb", x, n);
-}
-
-
-union ieee754dp ieee754dp_ldexp(union ieee754dp x, int n)
-{
-	return ieee754dp_scalb(x, n);
-}
diff --git a/arch/mips/math-emu/dp_simple.c b/arch/mips/math-emu/dp_simple.c
index cae11b0454c6..fddeb33107dd 100644
--- a/arch/mips/math-emu/dp_simple.c
+++ b/arch/mips/math-emu/dp_simple.c
@@ -26,14 +26,6 @@
 
 #include "ieee754dp.h"
 
-union ieee754dp ieee754dp_copysign(union ieee754dp x, union ieee754dp y)
-{
-	ieee754_clearcx();
-	DPSIGN(x) = DPSIGN(y);
-	return x;
-}
-
-
 union ieee754dp ieee754dp_neg(union ieee754dp x)
 {
 	COMPXDP;
diff --git a/arch/mips/math-emu/dp_tint.c b/arch/mips/math-emu/dp_tint.c
index 8c39a40d7fe9..1270009aee9b 100644
--- a/arch/mips/math-emu/dp_tint.c
+++ b/arch/mips/math-emu/dp_tint.c
@@ -106,16 +106,3 @@ int ieee754dp_tint(union ieee754dp x)
 	else
 		return xm;
 }
-
-
-unsigned int ieee754dp_tuns(union ieee754dp x)
-{
-	union ieee754dp hb = ieee754dp_1e31();
-
-	/* what if x < 0 ?? */
-	if (ieee754dp_lt(x, hb))
-		return (unsigned) ieee754dp_tint(x);
-
-	return (unsigned) ieee754dp_tint(ieee754dp_sub(x, hb)) |
-	    ((unsigned) 1 << 31);
-}
diff --git a/arch/mips/math-emu/dp_tlong.c b/arch/mips/math-emu/dp_tlong.c
index 2653b6eac689..b9a43a2d4b36 100644
--- a/arch/mips/math-emu/dp_tlong.c
+++ b/arch/mips/math-emu/dp_tlong.c
@@ -110,16 +110,3 @@ s64 ieee754dp_tlong(union ieee754dp x)
 	else
 		return xm;
 }
-
-
-u64 ieee754dp_tulong(union ieee754dp x)
-{
-	union ieee754dp hb = ieee754dp_1e63();
-
-	/* what if x < 0 ?? */
-	if (ieee754dp_lt(x, hb))
-		return (u64) ieee754dp_tlong(x);
-
-	return (u64) ieee754dp_tlong(ieee754dp_sub(x, hb)) |
-	    (1ULL << 63);
-}
diff --git a/arch/mips/math-emu/ieee754.h b/arch/mips/math-emu/ieee754.h
index 7466230da5b8..a62aa5a40af9 100644
--- a/arch/mips/math-emu/ieee754.h
+++ b/arch/mips/math-emu/ieee754.h
@@ -72,11 +72,6 @@ int ieee754sp_class(union ieee754sp x);
 
 union ieee754sp ieee754sp_abs(union ieee754sp x);
 union ieee754sp ieee754sp_neg(union ieee754sp x);
-union ieee754sp ieee754sp_scalb(union ieee754sp x, int);
-union ieee754sp ieee754sp_logb(union ieee754sp x);
-
-/* x with sign of y */
-union ieee754sp ieee754sp_copysign(union ieee754sp x, union ieee754sp y);
 
 union ieee754sp ieee754sp_add(union ieee754sp x, union ieee754sp y);
 union ieee754sp ieee754sp_sub(union ieee754sp x, union ieee754sp y);
@@ -84,27 +79,13 @@ union ieee754sp ieee754sp_mul(union ieee754sp x, union ieee754sp y);
 union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y);
 
 union ieee754sp ieee754sp_fint(int x);
-union ieee754sp ieee754sp_funs(unsigned x);
 union ieee754sp ieee754sp_flong(s64 x);
-union ieee754sp ieee754sp_fulong(u64 x);
 union ieee754sp ieee754sp_fdp(union ieee754dp x);
 
 int ieee754sp_tint(union ieee754sp x);
-unsigned int ieee754sp_tuns(union ieee754sp x);
 s64 ieee754sp_tlong(union ieee754sp x);
-u64 ieee754sp_tulong(union ieee754sp x);
 
 int ieee754sp_cmp(union ieee754sp x, union ieee754sp y, int cop, int sig);
-/*
- * basic sp math
- */
-union ieee754sp ieee754sp_modf(union ieee754sp x, union ieee754sp * ip);
-union ieee754sp ieee754sp_frexp(union ieee754sp x, int *exp);
-union ieee754sp ieee754sp_ldexp(union ieee754sp x, int exp);
-
-union ieee754sp ieee754sp_ceil(union ieee754sp x);
-union ieee754sp ieee754sp_floor(union ieee754sp x);
-union ieee754sp ieee754sp_trunc(union ieee754sp x);
 
 union ieee754sp ieee754sp_sqrt(union ieee754sp x);
 
@@ -113,9 +94,6 @@ union ieee754sp ieee754sp_sqrt(union ieee754sp x);
 */
 int ieee754dp_class(union ieee754dp x);
 
-/* x with sign of y */
-union ieee754dp ieee754dp_copysign(union ieee754dp x, union ieee754dp y);
-
 union ieee754dp ieee754dp_add(union ieee754dp x, union ieee754dp y);
 union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y);
 union ieee754dp ieee754dp_mul(union ieee754dp x, union ieee754dp y);
@@ -123,38 +101,15 @@ union ieee754dp ieee754dp_div(union ieee754dp x, union ieee754dp y);
 
 union ieee754dp ieee754dp_abs(union ieee754dp x);
 union ieee754dp ieee754dp_neg(union ieee754dp x);
-union ieee754dp ieee754dp_scalb(union ieee754dp x, int);
-
-/* return exponent as integer in floating point format
- */
-union ieee754dp ieee754dp_logb(union ieee754dp x);
 
 union ieee754dp ieee754dp_fint(int x);
-union ieee754dp ieee754dp_funs(unsigned x);
 union ieee754dp ieee754dp_flong(s64 x);
-union ieee754dp ieee754dp_fulong(u64 x);
 union ieee754dp ieee754dp_fsp(union ieee754sp x);
 
-union ieee754dp ieee754dp_ceil(union ieee754dp x);
-union ieee754dp ieee754dp_floor(union ieee754dp x);
-union ieee754dp ieee754dp_trunc(union ieee754dp x);
-
 int ieee754dp_tint(union ieee754dp x);
-unsigned int ieee754dp_tuns(union ieee754dp x);
 s64 ieee754dp_tlong(union ieee754dp x);
-u64 ieee754dp_tulong(union ieee754dp x);
 
 int ieee754dp_cmp(union ieee754dp x, union ieee754dp y, int cop, int sig);
-/*
- * basic sp math
- */
-union ieee754dp ieee754dp_modf(union ieee754dp x, union ieee754dp * ip);
-union ieee754dp ieee754dp_frexp(union ieee754dp x, int *exp);
-union ieee754dp ieee754dp_ldexp(union ieee754dp x, int exp);
-
-union ieee754dp ieee754dp_ceil(union ieee754dp x);
-union ieee754dp ieee754dp_floor(union ieee754dp x);
-union ieee754dp ieee754dp_trunc(union ieee754dp x);
 
 union ieee754dp ieee754dp_sqrt(union ieee754dp x);
 
@@ -261,14 +216,6 @@ static inline int ieee754dp_ge(union ieee754dp x, union ieee754dp y)
 	return ieee754dp_cmp(x, y, IEEE754_CGT | IEEE754_CEQ, 0);
 }
 
-
-/*
- * Like strtod
- */
-union ieee754dp ieee754dp_fstr(const char *s, char **endp);
-char *ieee754dp_tstr(union ieee754dp x, int prec, int fmt, int af);
-
-
 /*
  * The control status register
  */
diff --git a/arch/mips/math-emu/ieee754m.c b/arch/mips/math-emu/ieee754m.c
deleted file mode 100644
index 06224064333b..000000000000
--- a/arch/mips/math-emu/ieee754m.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * floor, trunc, ceil
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754.h"
-
-union ieee754dp ieee754dp_floor(union ieee754dp x)
-{
-	union ieee754dp i;
-
-	if (ieee754dp_lt(ieee754dp_modf(x, &i), ieee754dp_zero(0)))
-		return ieee754dp_sub(i, ieee754dp_one(0));
-	else
-		return i;
-}
-
-union ieee754dp ieee754dp_ceil(union ieee754dp x)
-{
-	union ieee754dp i;
-
-	if (ieee754dp_gt(ieee754dp_modf(x, &i), ieee754dp_zero(0)))
-		return ieee754dp_add(i, ieee754dp_one(0));
-	else
-		return i;
-}
-
-union ieee754dp ieee754dp_trunc(union ieee754dp x)
-{
-	union ieee754dp i;
-
-	(void) ieee754dp_modf(x, &i);
-	return i;
-}
diff --git a/arch/mips/math-emu/sp_fint.c b/arch/mips/math-emu/sp_fint.c
index 9574d25f6122..0d01200793d1 100644
--- a/arch/mips/math-emu/sp_fint.c
+++ b/arch/mips/math-emu/sp_fint.c
@@ -68,12 +68,3 @@ union ieee754sp ieee754sp_fint(int x)
 	}
 	SPNORMRET1(xs, xe, xm, "fint", x);
 }
-
-
-union ieee754sp ieee754sp_funs(unsigned int u)
-{
-	if ((int) u < 0)
-		return ieee754sp_add(ieee754sp_1e31(),
-				     ieee754sp_fint(u & ~(1 << 31)));
-	return ieee754sp_fint(u);
-}
diff --git a/arch/mips/math-emu/sp_flong.c b/arch/mips/math-emu/sp_flong.c
index 65c7e7e67b60..b26c155cc3e6 100644
--- a/arch/mips/math-emu/sp_flong.c
+++ b/arch/mips/math-emu/sp_flong.c
@@ -67,12 +67,3 @@ union ieee754sp ieee754sp_flong(s64 x)
 	}
 	SPNORMRET1(xs, xe, xm, "sp_flong", x);
 }
-
-
-union ieee754sp ieee754sp_fulong(u64 u)
-{
-	if ((s64) u < 0)
-		return ieee754sp_add(ieee754sp_1e63(),
-				     ieee754sp_flong(u & ~(1ULL << 63)));
-	return ieee754sp_flong(u);
-}
diff --git a/arch/mips/math-emu/sp_frexp.c b/arch/mips/math-emu/sp_frexp.c
deleted file mode 100644
index 72cedb088506..000000000000
--- a/arch/mips/math-emu/sp_frexp.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/* IEEE754 floating point arithmetic
- * single precision
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754sp.h"
-
-/* close to ieeep754sp_logb
-*/
-union ieee754sp ieee754sp_frexp(union ieee754sp x, int *eptr)
-{
-	COMPXSP;
-	ieee754_clearcx();
-	EXPLODEXSP;
-
-	switch (xc) {
-	case IEEE754_CLASS_SNAN:
-	case IEEE754_CLASS_QNAN:
-	case IEEE754_CLASS_INF:
-	case IEEE754_CLASS_ZERO:
-		*eptr = 0;
-		return x;
-	case IEEE754_CLASS_DNORM:
-		SPDNORMX;
-		break;
-	case IEEE754_CLASS_NORM:
-		break;
-	}
-	*eptr = xe + 1;
-	return buildsp(xs, -1 + SP_EBIAS, xm & ~SP_HIDDEN_BIT);
-}
diff --git a/arch/mips/math-emu/sp_logb.c b/arch/mips/math-emu/sp_logb.c
deleted file mode 100644
index 82c122c9a447..000000000000
--- a/arch/mips/math-emu/sp_logb.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* IEEE754 floating point arithmetic
- * single precision
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754sp.h"
-
-union ieee754sp ieee754sp_logb(union ieee754sp x)
-{
-	COMPXSP;
-
-	ieee754_clearcx();
-
-	EXPLODEXSP;
-
-	switch (xc) {
-	case IEEE754_CLASS_SNAN:
-		return ieee754sp_nanxcpt(x, "logb", x);
-	case IEEE754_CLASS_QNAN:
-		return x;
-	case IEEE754_CLASS_INF:
-		return ieee754sp_inf(0);
-	case IEEE754_CLASS_ZERO:
-		return ieee754sp_inf(1);
-	case IEEE754_CLASS_DNORM:
-		SPDNORMX;
-		break;
-	case IEEE754_CLASS_NORM:
-		break;
-	}
-	return ieee754sp_fint(xe);
-}
diff --git a/arch/mips/math-emu/sp_modf.c b/arch/mips/math-emu/sp_modf.c
deleted file mode 100644
index 5f361a7a10b6..000000000000
--- a/arch/mips/math-emu/sp_modf.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/* IEEE754 floating point arithmetic
- * single precision
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754sp.h"
-
-/* modf function is always exact for a finite number
-*/
-union ieee754sp ieee754sp_modf(union ieee754sp x, union ieee754sp *ip)
-{
-	COMPXSP;
-
-	ieee754_clearcx();
-
-	EXPLODEXSP;
-
-	switch (xc) {
-	case IEEE754_CLASS_SNAN:
-	case IEEE754_CLASS_QNAN:
-	case IEEE754_CLASS_INF:
-	case IEEE754_CLASS_ZERO:
-		*ip = x;
-		return x;
-	case IEEE754_CLASS_DNORM:
-		/* far to small */
-		*ip = ieee754sp_zero(xs);
-		return x;
-	case IEEE754_CLASS_NORM:
-		break;
-	}
-	if (xe < 0) {
-		*ip = ieee754sp_zero(xs);
-		return x;
-	}
-	if (xe >= SP_FBITS) {
-		*ip = x;
-		return ieee754sp_zero(xs);
-	}
-	/* generate ipart mantissa by clearing bottom bits
-	 */
-	*ip = buildsp(xs, xe + SP_EBIAS,
-		      ((xm >> (SP_FBITS - xe)) << (SP_FBITS - xe)) &
-		      ~SP_HIDDEN_BIT);
-
-	/* generate fpart mantissa by clearing top bits
-	 * and normalizing (must be able to normalize)
-	 */
-	xm = (xm << (32 - (SP_FBITS - xe))) >> (32 - (SP_FBITS - xe));
-	if (xm == 0)
-		return ieee754sp_zero(xs);
-
-	while ((xm >> SP_FBITS) == 0) {
-		xm <<= 1;
-		xe--;
-	}
-	return buildsp(xs, xe + SP_EBIAS, xm & ~SP_HIDDEN_BIT);
-}
diff --git a/arch/mips/math-emu/sp_scalb.c b/arch/mips/math-emu/sp_scalb.c
deleted file mode 100644
index cc8f1b82d2a9..000000000000
--- a/arch/mips/math-emu/sp_scalb.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* IEEE754 floating point arithmetic
- * single precision
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include "ieee754sp.h"
-
-union ieee754sp ieee754sp_scalb(union ieee754sp x, int n)
-{
-	COMPXSP;
-
-	ieee754_clearcx();
-
-	EXPLODEXSP;
-
-	switch (xc) {
-	case IEEE754_CLASS_SNAN:
-		return ieee754sp_nanxcpt(x, "scalb", x, n);
-	case IEEE754_CLASS_QNAN:
-	case IEEE754_CLASS_INF:
-	case IEEE754_CLASS_ZERO:
-		return x;
-	case IEEE754_CLASS_DNORM:
-		SPDNORMX;
-		break;
-	case IEEE754_CLASS_NORM:
-		break;
-	}
-	SPNORMRET2(xs, xe + n, xm << 3, "scalb", x, n);
-}
-
-
-union ieee754sp ieee754sp_ldexp(union ieee754sp x, int n)
-{
-	return ieee754sp_scalb(x, n);
-}
diff --git a/arch/mips/math-emu/sp_simple.c b/arch/mips/math-emu/sp_simple.c
index b63e9fb7ef4e..0f5fd57e2cac 100644
--- a/arch/mips/math-emu/sp_simple.c
+++ b/arch/mips/math-emu/sp_simple.c
@@ -26,14 +26,6 @@
 
 #include "ieee754sp.h"
 
-union ieee754sp ieee754sp_copysign(union ieee754sp x, union ieee754sp y)
-{
-	ieee754_clearcx();
-	SPSIGN(x) = SPSIGN(y);
-	return x;
-}
-
-
 union ieee754sp ieee754sp_neg(union ieee754sp x)
 {
 	COMPXSP;
diff --git a/arch/mips/math-emu/sp_tint.c b/arch/mips/math-emu/sp_tint.c
index 709f6bcd490b..690cb5b4cfa8 100644
--- a/arch/mips/math-emu/sp_tint.c
+++ b/arch/mips/math-emu/sp_tint.c
@@ -110,16 +110,3 @@ int ieee754sp_tint(union ieee754sp x)
 	else
 		return xm;
 }
-
-
-unsigned int ieee754sp_tuns(union ieee754sp x)
-{
-	union ieee754sp hb = ieee754sp_1e31();
-
-	/* what if x < 0 ?? */
-	if (ieee754sp_lt(x, hb))
-		return (unsigned) ieee754sp_tint(x);
-
-	return (unsigned) ieee754sp_tint(ieee754sp_sub(x, hb)) |
-	    ((unsigned) 1 << 31);
-}
diff --git a/arch/mips/math-emu/sp_tlong.c b/arch/mips/math-emu/sp_tlong.c
index e979aa757079..346cbad4a1ae 100644
--- a/arch/mips/math-emu/sp_tlong.c
+++ b/arch/mips/math-emu/sp_tlong.c
@@ -107,16 +107,3 @@ s64 ieee754sp_tlong(union ieee754sp x)
 	else
 		return xm;
 }
-
-
-u64 ieee754sp_tulong(union ieee754sp x)
-{
-	union ieee754sp hb = ieee754sp_1e63();
-
-	/* what if x < 0 ?? */
-	if (ieee754sp_lt(x, hb))
-		return (u64) ieee754sp_tlong(x);
-
-	return (u64) ieee754sp_tlong(ieee754sp_sub(x, hb)) |
-	    (1ULL << 63);
-}
-- 
2.39.5