softfloat: add float*_unordered_{,quiet}() functions
Add float*_unordered() functions to softfloat, matching the softfloat-native
ones. Also add float*_unordered_quiet() functions to match the others
comparison functions.
This allow target-i386/ops_sse.h to be compiled with softfloat.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 03fb948..11f6584 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -2394,6 +2394,25 @@
}
/*----------------------------------------------------------------------------
+| Returns 1 if the single-precision floating-point values `a' and `b' cannot
+| be compared, and 0 otherwise. The comparison is performed according to the
+| IEC/IEEE Standard for Binary Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+
+int float32_unordered( float32 a, float32 b STATUS_PARAM )
+{
+ a = float32_squash_input_denormal(a STATUS_VAR);
+ b = float32_squash_input_denormal(b STATUS_VAR);
+
+ if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) )
+ || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) )
+ ) {
+ float_raise( float_flag_invalid STATUS_VAR);
+ return 1;
+ }
+ return 0;
+}
+/*----------------------------------------------------------------------------
| Returns 1 if the single-precision floating-point value `a' is equal to
| the corresponding value `b', and 0 otherwise. The invalid exception is
| raised if either operand is a NaN. Otherwise, the comparison is performed
@@ -2481,6 +2500,29 @@
}
/*----------------------------------------------------------------------------
+| Returns 1 if the single-precision floating-point values `a' and `b' cannot
+| be compared, and 0 otherwise. Quiet NaNs do not cause an exception. The
+| comparison is performed according to the IEC/IEEE Standard for Binary
+| Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+
+int float32_unordered_quiet( float32 a, float32 b STATUS_PARAM )
+{
+ a = float32_squash_input_denormal(a STATUS_VAR);
+ b = float32_squash_input_denormal(b STATUS_VAR);
+
+ if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) )
+ || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) )
+ ) {
+ if ( float32_is_signaling_nan( a ) || float32_is_signaling_nan( b ) ) {
+ float_raise( float_flag_invalid STATUS_VAR);
+ }
+ return 1;
+ }
+ return 0;
+}
+
+/*----------------------------------------------------------------------------
| Returns the result of converting the double-precision floating-point value
| `a' to the 32-bit two's complement integer format. The conversion is
| performed according to the IEC/IEEE Standard for Binary Floating-Point
@@ -3618,6 +3660,26 @@
}
/*----------------------------------------------------------------------------
+| Returns 1 if the double-precision floating-point values `a' and `b' cannot
+| be compared, and 0 otherwise. The comparison is performed according to the
+| IEC/IEEE Standard for Binary Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+
+int float64_unordered( float64 a, float64 b STATUS_PARAM )
+{
+ a = float64_squash_input_denormal(a STATUS_VAR);
+ b = float64_squash_input_denormal(b STATUS_VAR);
+
+ if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) )
+ || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) )
+ ) {
+ float_raise( float_flag_invalid STATUS_VAR);
+ return 1;
+ }
+ return 0;
+}
+
+/*----------------------------------------------------------------------------
| Returns 1 if the double-precision floating-point value `a' is equal to the
| corresponding value `b', and 0 otherwise. The invalid exception is raised
| if either operand is a NaN. Otherwise, the comparison is performed
@@ -3704,6 +3766,29 @@
}
+/*----------------------------------------------------------------------------
+| Returns 1 if the double-precision floating-point values `a' and `b' cannot
+| be compared, and 0 otherwise. Quiet NaNs do not cause an exception. The
+| comparison is performed according to the IEC/IEEE Standard for Binary
+| Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+
+int float64_unordered_quiet( float64 a, float64 b STATUS_PARAM )
+{
+ a = float64_squash_input_denormal(a STATUS_VAR);
+ b = float64_squash_input_denormal(b STATUS_VAR);
+
+ if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) )
+ || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) )
+ ) {
+ if ( float64_is_signaling_nan( a ) || float64_is_signaling_nan( b ) ) {
+ float_raise( float_flag_invalid STATUS_VAR);
+ }
+ return 1;
+ }
+ return 0;
+}
+
#ifdef FLOATX80
/*----------------------------------------------------------------------------
@@ -4597,6 +4682,24 @@
}
/*----------------------------------------------------------------------------
+| Returns 1 if the extended double-precision floating-point values `a' and `b'
+| cannot be compared, and 0 otherwise. The comparison is performed according
+| to the IEC/IEEE Standard for Binary Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+int floatx80_unordered( floatx80 a, floatx80 b STATUS_PARAM )
+{
+ if ( ( ( extractFloatx80Exp( a ) == 0x7FFF )
+ && (uint64_t) ( extractFloatx80Frac( a )<<1 ) )
+ || ( ( extractFloatx80Exp( b ) == 0x7FFF )
+ && (uint64_t) ( extractFloatx80Frac( b )<<1 ) )
+ ) {
+ float_raise( float_flag_invalid STATUS_VAR);
+ return 1;
+ }
+ return 0;
+}
+
+/*----------------------------------------------------------------------------
| Returns 1 if the extended double-precision floating-point value `a' is equal
| to the corresponding value `b', and 0 otherwise. The invalid exception is
| raised if either operand is a NaN. Otherwise, the comparison is performed
@@ -4695,6 +4798,28 @@
}
+/*----------------------------------------------------------------------------
+| Returns 1 if the extended double-precision floating-point values `a' and `b'
+| cannot be compared, and 0 otherwise. Quiet NaNs do not cause an exception.
+| The comparison is performed according to the IEC/IEEE Standard for Binary
+| Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+int floatx80_unordered_quiet( floatx80 a, floatx80 b STATUS_PARAM )
+{
+ if ( ( ( extractFloatx80Exp( a ) == 0x7FFF )
+ && (uint64_t) ( extractFloatx80Frac( a )<<1 ) )
+ || ( ( extractFloatx80Exp( b ) == 0x7FFF )
+ && (uint64_t) ( extractFloatx80Frac( b )<<1 ) )
+ ) {
+ if ( floatx80_is_signaling_nan( a )
+ || floatx80_is_signaling_nan( b ) ) {
+ float_raise( float_flag_invalid STATUS_VAR);
+ }
+ return 1;
+ }
+ return 0;
+}
+
#endif
#ifdef FLOAT128
@@ -5718,6 +5843,25 @@
}
/*----------------------------------------------------------------------------
+| Returns 1 if the quadruple-precision floating-point values `a' and `b' cannot
+| be compared, and 0 otherwise. The comparison is performed according to the
+| IEC/IEEE Standard for Binary Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+
+int float128_unordered( float128 a, float128 b STATUS_PARAM )
+{
+ if ( ( ( extractFloat128Exp( a ) == 0x7FFF )
+ && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) )
+ || ( ( extractFloat128Exp( b ) == 0x7FFF )
+ && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) )
+ ) {
+ float_raise( float_flag_invalid STATUS_VAR);
+ return 1;
+ }
+ return 0;
+}
+
+/*----------------------------------------------------------------------------
| Returns 1 if the quadruple-precision floating-point value `a' is equal to
| the corresponding value `b', and 0 otherwise. The invalid exception is
| raised if either operand is a NaN. Otherwise, the comparison is performed
@@ -5816,6 +5960,29 @@
}
+/*----------------------------------------------------------------------------
+| Returns 1 if the quadruple-precision floating-point values `a' and `b' cannot
+| be compared, and 0 otherwise. Quiet NaNs do not cause an exception. The
+| comparison is performed according to the IEC/IEEE Standard for Binary
+| Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+
+int float128_unordered_quiet( float128 a, float128 b STATUS_PARAM )
+{
+ if ( ( ( extractFloat128Exp( a ) == 0x7FFF )
+ && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) )
+ || ( ( extractFloat128Exp( b ) == 0x7FFF )
+ && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) )
+ ) {
+ if ( float128_is_signaling_nan( a )
+ || float128_is_signaling_nan( b ) ) {
+ float_raise( float_flag_invalid STATUS_VAR);
+ }
+ return 1;
+ }
+ return 0;
+}
+
#endif
/* misc functions */
