2007-04-26 Patrick Mansfield <patmans@us.ibm.com>

        * libc/include/ieeefp.h: use prefixed __ieeefp_ macros that can be
        overridden via machine/ieeefp.h.
        * libc/include/machine/ieeefp.h: Add SPU specific C99 and ieeefp
        macros for isnan and related macros.
        * libc/include/math.h: Allow C99 isfinite, isinf, and isnan to be
        overridden via machine/ieeefp.h.
        * libm/machine/spu/Makefile.am: Add new files.
        * libm/machine/spu/Makefile.in: Autogenerate with new files.
        * libm/machine/spu/sf_fpclassify.c: Add SPU specific __fpclassifyf.
        * libm/machine/spu/sf_finite.c: Add SPU specific finitef.
        * libm/machine/spu/sf_isinf.c: Add SPU specific isinff.
        * libm/machine/spu/sf_isinff.c: Add SPU specific __isinff.
        * libm/machine/spu/sf_isnan.c: Add SPU specific isnanf.
        * libm/machine/spu/sf_isnanf.c: Add SPU specific __isnanf.
        * libm/machine/spu/sf_nan.c: Add SPU specific nanf.

9 files changed, 330 insertions, 4 deletions

diff --git a/newlib/libm/machine/spu/Makefile.am b/newlib/libm/machine/spu/Makefile.am
index 74904f2c9..68a5c8da6 100644
--- a/newlib/libm/machine/spu/Makefile.am
+++ b/newlib/libm/machine/spu/Makefile.am
@@ -8,7 +8,9 @@ INCLUDES = -I $(newlib_basedir)/../newlib/libm/common $(NEWLIB_CFLAGS) \
 LIB_SOURCES = \
 	feclearexcept.c fe_dfl_env.c fegetenv.c fegetexceptflag.c \
 	fegetround.c feholdexcept.c feraiseexcept.c fesetenv.c \
-	fesetexceptflag.c fesetround.c fetestexcept.c feupdateenv.c
+	fesetexceptflag.c fesetround.c fetestexcept.c feupdateenv.c \
+	sf_finite.c sf_fpclassify.c sf_isinf.c sf_isinff.c sf_isnanf.c \
+	sf_isnan.c sf_nan.c
 
 noinst_LIBRARIES = lib.a
 lib_a_SOURCES = $(LIB_SOURCES)
diff --git a/newlib/libm/machine/spu/Makefile.in b/newlib/libm/machine/spu/Makefile.in
index b419f083d..e19c784e4 100644
--- a/newlib/libm/machine/spu/Makefile.in
+++ b/newlib/libm/machine/spu/Makefile.in
@@ -47,7 +47,11 @@ DIST_COMMON = $(srcdir)/../../../Makefile.shared \
 	$(srcdir)/../../../../compile $(srcdir)/../../../../compile \
 	$(srcdir)/../../../../compile $(srcdir)/../../../../compile \
 	$(srcdir)/../../../../compile $(srcdir)/../../../../compile \
-	$(srcdir)/../../../../compile $(srcdir)/../../../../compile
+	$(srcdir)/../../../../compile $(srcdir)/../../../../compile \
+	$(srcdir)/../../../../compile $(srcdir)/../../../../compile \
+	$(srcdir)/../../../../compile $(srcdir)/../../../../compile \
+	$(srcdir)/../../../../compile $(srcdir)/../../../../compile \
+	$(srcdir)/../../../../compile
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../../../acinclude.m4 \
@@ -68,7 +72,10 @@ am__objects_1 = lib_a-feclearexcept.$(OBJEXT) \
 	lib_a-feholdexcept.$(OBJEXT) lib_a-feraiseexcept.$(OBJEXT) \
 	lib_a-fesetenv.$(OBJEXT) lib_a-fesetexceptflag.$(OBJEXT) \
 	lib_a-fesetround.$(OBJEXT) lib_a-fetestexcept.$(OBJEXT) \
-	lib_a-feupdateenv.$(OBJEXT)
+	lib_a-feupdateenv.$(OBJEXT) lib_a-sf_finite.$(OBJEXT) \
+	lib_a-sf_fpclassify.$(OBJEXT) lib_a-sf_isinf.$(OBJEXT) \
+	lib_a-sf_isinff.$(OBJEXT) lib_a-sf_isnanf.$(OBJEXT) \
+	lib_a-sf_isnan.$(OBJEXT) lib_a-sf_nan.$(OBJEXT)
 am_lib_a_OBJECTS = $(am__objects_1)
 lib_a_OBJECTS = $(am_lib_a_OBJECTS)
 DEFAULT_INCLUDES = -I. -I$(srcdir)
@@ -197,7 +204,9 @@ INCLUDES = -I $(newlib_basedir)/../newlib/libm/common $(NEWLIB_CFLAGS) \
 LIB_SOURCES = \
 	feclearexcept.c fe_dfl_env.c fegetenv.c fegetexceptflag.c \
 	fegetround.c feholdexcept.c feraiseexcept.c fesetenv.c \
-	fesetexceptflag.c fesetround.c fetestexcept.c feupdateenv.c
+	fesetexceptflag.c fesetround.c fetestexcept.c feupdateenv.c \
+	sf_finite.c sf_fpclassify.c sf_isinf.c sf_isinff.c sf_isnanf.c \
+	sf_isnan.c sf_nan.c
 
 noinst_LIBRARIES = lib.a
 lib_a_SOURCES = $(LIB_SOURCES)
@@ -334,6 +343,48 @@ lib_a-feupdateenv.o: feupdateenv.c
 
 lib_a-feupdateenv.obj: feupdateenv.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feupdateenv.obj `if test -f 'feupdateenv.c'; then $(CYGPATH_W) 'feupdateenv.c'; else $(CYGPATH_W) '$(srcdir)/feupdateenv.c'; fi`
+
+lib_a-sf_finite.o: sf_finite.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_finite.o `test -f 'sf_finite.c' || echo '$(srcdir)/'`sf_finite.c
+
+lib_a-sf_finite.obj: sf_finite.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_finite.obj `if test -f 'sf_finite.c'; then $(CYGPATH_W) 'sf_finite.c'; else $(CYGPATH_W) '$(srcdir)/sf_finite.c'; fi`
+
+lib_a-sf_fpclassify.o: sf_fpclassify.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_fpclassify.o `test -f 'sf_fpclassify.c' || echo '$(srcdir)/'`sf_fpclassify.c
+
+lib_a-sf_fpclassify.obj: sf_fpclassify.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_fpclassify.obj `if test -f 'sf_fpclassify.c'; then $(CYGPATH_W) 'sf_fpclassify.c'; else $(CYGPATH_W) '$(srcdir)/sf_fpclassify.c'; fi`
+
+lib_a-sf_isinf.o: sf_isinf.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_isinf.o `test -f 'sf_isinf.c' || echo '$(srcdir)/'`sf_isinf.c
+
+lib_a-sf_isinf.obj: sf_isinf.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_isinf.obj `if test -f 'sf_isinf.c'; then $(CYGPATH_W) 'sf_isinf.c'; else $(CYGPATH_W) '$(srcdir)/sf_isinf.c'; fi`
+
+lib_a-sf_isinff.o: sf_isinff.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_isinff.o `test -f 'sf_isinff.c' || echo '$(srcdir)/'`sf_isinff.c
+
+lib_a-sf_isinff.obj: sf_isinff.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_isinff.obj `if test -f 'sf_isinff.c'; then $(CYGPATH_W) 'sf_isinff.c'; else $(CYGPATH_W) '$(srcdir)/sf_isinff.c'; fi`
+
+lib_a-sf_isnanf.o: sf_isnanf.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_isnanf.o `test -f 'sf_isnanf.c' || echo '$(srcdir)/'`sf_isnanf.c
+
+lib_a-sf_isnanf.obj: sf_isnanf.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_isnanf.obj `if test -f 'sf_isnanf.c'; then $(CYGPATH_W) 'sf_isnanf.c'; else $(CYGPATH_W) '$(srcdir)/sf_isnanf.c'; fi`
+
+lib_a-sf_isnan.o: sf_isnan.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_isnan.o `test -f 'sf_isnan.c' || echo '$(srcdir)/'`sf_isnan.c
+
+lib_a-sf_isnan.obj: sf_isnan.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_isnan.obj `if test -f 'sf_isnan.c'; then $(CYGPATH_W) 'sf_isnan.c'; else $(CYGPATH_W) '$(srcdir)/sf_isnan.c'; fi`
+
+lib_a-sf_nan.o: sf_nan.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_nan.o `test -f 'sf_nan.c' || echo '$(srcdir)/'`sf_nan.c
+
+lib_a-sf_nan.obj: sf_nan.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_nan.obj `if test -f 'sf_nan.c'; then $(CYGPATH_W) 'sf_nan.c'; else $(CYGPATH_W) '$(srcdir)/sf_nan.c'; fi`
 uninstall-info-am:
 
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
diff --git a/newlib/libm/machine/spu/sf_finite.c b/newlib/libm/machine/spu/sf_finite.c
new file mode 100644
index 000000000..88d635fd4
--- /dev/null
+++ b/newlib/libm/machine/spu/sf_finite.c
@@ -0,0 +1,41 @@
+/*
+  (C) Copyright 2007
+  International Business Machines Corporation,
+  Sony Computer Entertainment, Incorporated,
+  Toshiba Corporation,
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+    * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * On the SPU always return 1.
+ */
+int
+finitef(float x)
+{
+	return 1;
+}
diff --git a/newlib/libm/machine/spu/sf_fpclassify.c b/newlib/libm/machine/spu/sf_fpclassify.c
new file mode 100644
index 000000000..36cf8ba90
--- /dev/null
+++ b/newlib/libm/machine/spu/sf_fpclassify.c
@@ -0,0 +1,24 @@
+/* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * is freely granted, provided that this notice is preserved.
+ */
+
+#include "fdlibm.h"
+
+/*
+ * On the SPU, single precision floating point returns only FP_NORMAL and
+ * FP_ZERO, since FP_NAN, FP_INFINITE, and FP_SUBNORMAL are not
+ * supported, base on the common f_fpclassify.c.
+ */
+int
+__fpclassifyf (float x)
+{
+  __uint32_t w;
+
+  GET_FLOAT_WORD(w,x);
+
+  if (w == 0x00000000 || w == 0x80000000)
+    return FP_ZERO;
+  return FP_NORMAL;
+}
diff --git a/newlib/libm/machine/spu/sf_isinf.c b/newlib/libm/machine/spu/sf_isinf.c
new file mode 100644
index 000000000..7cba324f9
--- /dev/null
+++ b/newlib/libm/machine/spu/sf_isinf.c
@@ -0,0 +1,43 @@
+/*
+  (C) Copyright 2007
+  International Business Machines Corporation,
+  Sony Computer Entertainment, Incorporated,
+  Toshiba Corporation,
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+    * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * On the SPU isinff(x) always returns 0.
+ *
+ * isinff is an extension declared in <ieeefp.h> and <math.h>.
+ */
+int
+isinff (float x)
+{
+	return 0;
+}
diff --git a/newlib/libm/machine/spu/sf_isinff.c b/newlib/libm/machine/spu/sf_isinff.c
new file mode 100644
index 000000000..3ce424a74
--- /dev/null
+++ b/newlib/libm/machine/spu/sf_isinff.c
@@ -0,0 +1,41 @@
+/*
+  (C) Copyright 2007
+  International Business Machines Corporation,
+  Sony Computer Entertainment, Incorporated,
+  Toshiba Corporation,
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+    * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * On the SPU __isinff(x) always returns 0.
+ */
+int
+__isinff (float x)
+{
+	return 0;
+}
diff --git a/newlib/libm/machine/spu/sf_isnan.c b/newlib/libm/machine/spu/sf_isnan.c
new file mode 100644
index 000000000..448bfc47e
--- /dev/null
+++ b/newlib/libm/machine/spu/sf_isnan.c
@@ -0,0 +1,41 @@
+/*
+  (C) Copyright 2007
+  International Business Machines Corporation,
+  Sony Computer Entertainment, Incorporated,
+  Toshiba Corporation,
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+    * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * On the SPU single precision floating does not support NAN's.
+ */
+int
+isnanf(float x)
+{
+	return 0;
+}
diff --git a/newlib/libm/machine/spu/sf_isnanf.c b/newlib/libm/machine/spu/sf_isnanf.c
new file mode 100644
index 000000000..1dab50c7e
--- /dev/null
+++ b/newlib/libm/machine/spu/sf_isnanf.c
@@ -0,0 +1,41 @@
+/*
+  (C) Copyright 2007
+  International Business Machines Corporation,
+  Sony Computer Entertainment, Incorporated,
+  Toshiba Corporation,
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+    * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * On the SPU single precision floating does not support NAN's.
+ */
+int
+__isnanf(float x)
+{
+	return 0;
+}
diff --git a/newlib/libm/machine/spu/sf_nan.c b/newlib/libm/machine/spu/sf_nan.c
new file mode 100644
index 000000000..ef994c7ba
--- /dev/null
+++ b/newlib/libm/machine/spu/sf_nan.c
@@ -0,0 +1,42 @@
+/*
+  (C) Copyright 2007
+  International Business Machines Corporation,
+  Sony Computer Entertainment, Incorporated,
+  Toshiba Corporation,
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+    * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * On the SPU single precision floating does not support NAN's, and nanf
+ * is documented as returning zero.
+ */
+float
+nanf(const char *unused)
+{
+	return 0;
+}