softfloat-native: add float*_is_any_nan() functions

Add float*_is_any_nan() functions to match the softfloat API.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

fpu/softfloat-native.c

@@ -263,6 +263,15 @@ int float32_is_quiet_nan( float32 a1 )
     return ( 0xFF800000 < ( a<<1 ) );
 }
 
+int float32_is_any_nan( float32 a1 )
+{
+    float32u u;
+    uint32_t a;
+    u.f = a1;
+    a = u.i;
+    return (a & ~(1 << 31)) > 0x7f800000U;
+}
+
 /*----------------------------------------------------------------------------
 | Software IEC/IEEE double-precision conversion routines.
 *----------------------------------------------------------------------------*/
@@ -422,6 +431,16 @@ int float64_is_quiet_nan( float64 a1 )
 
 }
 
+int float64_is_any_nan( float64 a1 )
+{
+    float64u u;
+    uint64_t a;
+    u.f = a1;
+    a = u.i;
+
+    return (a & ~(1ULL << 63)) > LIT64 (0x7FF0000000000000 );
+}
+
 #ifdef FLOATX80
 
 /*----------------------------------------------------------------------------
@@ -511,4 +530,11 @@ int floatx80_is_quiet_nan( floatx80 a1 )
     return ( ( u.i.high & 0x7FFF ) == 0x7FFF ) && (uint64_t) ( u.i.low<<1 );
 }
 
+int floatx80_is_any_nan( floatx80 a1 )
+{
+    floatx80u u;
+    u.f = a1;
+    return ((u.i.high & 0x7FFF) == 0x7FFF) && ( u.i.low<<1 );
+}
+
 #endif

fpu/softfloat-native.h

@@ -255,6 +255,7 @@ int float32_compare( float32, float32 STATUS_PARAM );
 int float32_compare_quiet( float32, float32 STATUS_PARAM );
 int float32_is_signaling_nan( float32 );
 int float32_is_quiet_nan( float32 );
+int float32_is_any_nan( float32 );
 
 INLINE float32 float32_abs(float32 a)
 {
@@ -375,6 +376,7 @@ INLINE int float64_unordered_quiet( float64 a, float64 b STATUS_PARAM)
 int float64_compare( float64, float64 STATUS_PARAM );
 int float64_compare_quiet( float64, float64 STATUS_PARAM );
 int float64_is_signaling_nan( float64 );
+int float64_is_any_nan( float64 );
 int float64_is_quiet_nan( float64 );
 
 INLINE float64 float64_abs(float64 a)
@@ -492,6 +494,7 @@ int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
 int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
 int floatx80_is_signaling_nan( floatx80 );
 int floatx80_is_quiet_nan( floatx80 );
+int floatx80_is_any_nan( floatx80 );
 
 INLINE floatx80 floatx80_abs(floatx80 a)
 {