[PATCH] arch: arm: nwfpe: softfloat.c: Remove some unused functions
Rickard Strandqvist
rickard_strandqvist at spectrumdigital.se
Thu Jan 1 09:21:10 PST 2015
Removes some functions that are not used anywhere:
floatx80_lt_quiet() floatx80_le_quiet() floatx80_eq_signaling()
floatx80_le() floatx80_to_int32_round_to_zero() float64_lt_quiet()
float64_le_quiet() float64_eq_signaling() float32_lt_quiet()
float32_le_quiet() float32_eq_signaling()
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist at spectrumdigital.se>
---
arch/arm/nwfpe/softfloat.c | 320 --------------------------------------------
arch/arm/nwfpe/softfloat.h | 11 --
2 files changed, 331 deletions(-)
diff --git a/arch/arm/nwfpe/softfloat.c b/arch/arm/nwfpe/softfloat.c
index ffa6b43..dda30ab 100644
--- a/arch/arm/nwfpe/softfloat.c
+++ b/arch/arm/nwfpe/softfloat.c
@@ -1568,78 +1568,6 @@ flag float32_lt( float32 a, float32 b )
/*
-------------------------------------------------------------------------------
-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
-according to the IEC/IEEE Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag float32_eq_signaling( float32 a, float32 b )
-{
-
- if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) )
- || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) )
- ) {
- float_raise( float_flag_invalid );
- return 0;
- }
- return ( a == b ) || ( (bits32) ( ( a | b )<<1 ) == 0 );
-
-}
-
-/*
--------------------------------------------------------------------------------
-Returns 1 if the single-precision floating-point value `a' is less than or
-equal to the corresponding value `b', and 0 otherwise. Quiet NaNs do not
-cause an exception. Otherwise, the comparison is performed according to the
-IEC/IEEE Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag float32_le_quiet( float32 a, float32 b )
-{
- flag aSign, bSign;
- //int16 aExp, bExp;
-
- if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) )
- || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) )
- ) {
- /* Do nothing, even if NaN as we're quiet */
- return 0;
- }
- aSign = extractFloat32Sign( a );
- bSign = extractFloat32Sign( b );
- if ( aSign != bSign ) return aSign || ( (bits32) ( ( a | b )<<1 ) == 0 );
- return ( a == b ) || ( aSign ^ ( a < b ) );
-
-}
-
-/*
--------------------------------------------------------------------------------
-Returns 1 if the single-precision floating-point value `a' is less than
-the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an
-exception. Otherwise, the comparison is performed according to the IEC/IEEE
-Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag float32_lt_quiet( float32 a, float32 b )
-{
- flag aSign, bSign;
-
- if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) )
- || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) )
- ) {
- /* Do nothing, even if NaN as we're quiet */
- return 0;
- }
- aSign = extractFloat32Sign( a );
- bSign = extractFloat32Sign( b );
- if ( aSign != bSign ) return aSign && ( (bits32) ( ( a | b )<<1 ) != 0 );
- return ( a != b ) && ( aSign ^ ( a < b ) );
-
-}
-
-/*
--------------------------------------------------------------------------------
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
@@ -2453,78 +2381,6 @@ flag float64_lt( float64 a, float64 b )
}
-/*
--------------------------------------------------------------------------------
-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
-according to the IEC/IEEE Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag float64_eq_signaling( float64 a, float64 b )
-{
-
- if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) )
- || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) )
- ) {
- float_raise( float_flag_invalid );
- return 0;
- }
- return ( a == b ) || ( (bits64) ( ( a | b )<<1 ) == 0 );
-
-}
-
-/*
--------------------------------------------------------------------------------
-Returns 1 if the double-precision floating-point value `a' is less than or
-equal to the corresponding value `b', and 0 otherwise. Quiet NaNs do not
-cause an exception. Otherwise, the comparison is performed according to the
-IEC/IEEE Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag float64_le_quiet( float64 a, float64 b )
-{
- flag aSign, bSign;
- //int16 aExp, bExp;
-
- if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) )
- || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) )
- ) {
- /* Do nothing, even if NaN as we're quiet */
- return 0;
- }
- aSign = extractFloat64Sign( a );
- bSign = extractFloat64Sign( b );
- if ( aSign != bSign ) return aSign || ( (bits64) ( ( a | b )<<1 ) == 0 );
- return ( a == b ) || ( aSign ^ ( a < b ) );
-
-}
-
-/*
--------------------------------------------------------------------------------
-Returns 1 if the double-precision floating-point value `a' is less than
-the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an
-exception. Otherwise, the comparison is performed according to the IEC/IEEE
-Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag float64_lt_quiet( float64 a, float64 b )
-{
- flag aSign, bSign;
-
- if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) )
- || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) )
- ) {
- /* Do nothing, even if NaN as we're quiet */
- return 0;
- }
- aSign = extractFloat64Sign( a );
- bSign = extractFloat64Sign( b );
- if ( aSign != bSign ) return aSign && ( (bits64) ( ( a | b )<<1 ) != 0 );
- return ( a != b ) && ( aSign ^ ( a < b ) );
-
-}
-
#ifdef FLOATX80
/*
@@ -2558,52 +2414,6 @@ int32 floatx80_to_int32( struct roundingData *roundData, floatx80 a )
/*
-------------------------------------------------------------------------------
Returns the result of converting the extended 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 Arithmetic, except that the conversion is always rounded
-toward zero. If `a' is a NaN, the largest positive integer is returned.
-Otherwise, if the conversion overflows, the largest integer with the same
-sign as `a' is returned.
--------------------------------------------------------------------------------
-*/
-int32 floatx80_to_int32_round_to_zero( floatx80 a )
-{
- flag aSign;
- int32 aExp, shiftCount;
- bits64 aSig, savedASig;
- int32 z;
-
- aSig = extractFloatx80Frac( a );
- aExp = extractFloatx80Exp( a );
- aSign = extractFloatx80Sign( a );
- shiftCount = 0x403E - aExp;
- if ( shiftCount < 32 ) {
- if ( ( aExp == 0x7FFF ) && (bits64) ( aSig<<1 ) ) aSign = 0;
- goto invalid;
- }
- else if ( 63 < shiftCount ) {
- if ( aExp || aSig ) float_raise( float_flag_inexact );
- return 0;
- }
- savedASig = aSig;
- aSig >>= shiftCount;
- z = aSig;
- if ( aSign ) z = - z;
- if ( ( z < 0 ) ^ aSign ) {
- invalid:
- float_raise( float_flag_invalid );
- return aSign ? 0x80000000 : 0x7FFFFFFF;
- }
- if ( ( aSig<<shiftCount ) != savedASig ) {
- float_raise( float_flag_inexact );
- }
- return z;
-
-}
-
-/*
--------------------------------------------------------------------------------
-Returns the result of converting the extended double-precision floating-
point value `a' to the single-precision floating-point format. The
conversion is performed according to the IEC/IEEE Standard for Binary
Floating-point Arithmetic.
@@ -3270,40 +3080,6 @@ flag floatx80_eq( floatx80 a, floatx80 b )
/*
-------------------------------------------------------------------------------
Returns 1 if the extended double-precision floating-point value `a' is
-less than or equal to the corresponding value `b', and 0 otherwise. The
-comparison is performed according to the IEC/IEEE Standard for Binary
-Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag floatx80_le( floatx80 a, floatx80 b )
-{
- flag aSign, bSign;
-
- if ( ( ( extractFloatx80Exp( a ) == 0x7FFF )
- && (bits64) ( extractFloatx80Frac( a )<<1 ) )
- || ( ( extractFloatx80Exp( b ) == 0x7FFF )
- && (bits64) ( extractFloatx80Frac( b )<<1 ) )
- ) {
- float_raise( float_flag_invalid );
- return 0;
- }
- aSign = extractFloatx80Sign( a );
- bSign = extractFloatx80Sign( b );
- if ( aSign != bSign ) {
- return
- aSign
- || ( ( ( (bits16) ( ( a.high | b.high )<<1 ) ) | a.low | b.low )
- == 0 );
- }
- return
- aSign ? le128( b.high, b.low, a.high, a.low )
- : le128( a.high, a.low, b.high, b.low );
-
-}
-
-/*
--------------------------------------------------------------------------------
-Returns 1 if the extended double-precision floating-point value `a' is
less than the corresponding value `b', and 0 otherwise. The comparison
is performed according to the IEC/IEEE Standard for Binary Floating-point
Arithmetic.
@@ -3335,101 +3111,5 @@ flag floatx80_lt( floatx80 a, floatx80 b )
}
-/*
--------------------------------------------------------------------------------
-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
-according to the IEC/IEEE Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag floatx80_eq_signaling( floatx80 a, floatx80 b )
-{
-
- if ( ( ( extractFloatx80Exp( a ) == 0x7FFF )
- && (bits64) ( extractFloatx80Frac( a )<<1 ) )
- || ( ( extractFloatx80Exp( b ) == 0x7FFF )
- && (bits64) ( extractFloatx80Frac( b )<<1 ) )
- ) {
- float_raise( float_flag_invalid );
- return 0;
- }
- return
- ( a.low == b.low )
- && ( ( a.high == b.high )
- || ( ( a.low == 0 )
- && ( (bits16) ( ( a.high | b.high )<<1 ) == 0 ) )
- );
-
-}
-
-/*
--------------------------------------------------------------------------------
-Returns 1 if the extended double-precision floating-point value `a' is less
-than or equal to the corresponding value `b', and 0 otherwise. Quiet NaNs
-do not cause an exception. Otherwise, the comparison is performed according
-to the IEC/IEEE Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag floatx80_le_quiet( floatx80 a, floatx80 b )
-{
- flag aSign, bSign;
-
- if ( ( ( extractFloatx80Exp( a ) == 0x7FFF )
- && (bits64) ( extractFloatx80Frac( a )<<1 ) )
- || ( ( extractFloatx80Exp( b ) == 0x7FFF )
- && (bits64) ( extractFloatx80Frac( b )<<1 ) )
- ) {
- /* Do nothing, even if NaN as we're quiet */
- return 0;
- }
- aSign = extractFloatx80Sign( a );
- bSign = extractFloatx80Sign( b );
- if ( aSign != bSign ) {
- return
- aSign
- || ( ( ( (bits16) ( ( a.high | b.high )<<1 ) ) | a.low | b.low )
- == 0 );
- }
- return
- aSign ? le128( b.high, b.low, a.high, a.low )
- : le128( a.high, a.low, b.high, b.low );
-
-}
-
-/*
--------------------------------------------------------------------------------
-Returns 1 if the extended double-precision floating-point value `a' is less
-than the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause
-an exception. Otherwise, the comparison is performed according to the
-IEC/IEEE Standard for Binary Floating-point Arithmetic.
--------------------------------------------------------------------------------
-*/
-flag floatx80_lt_quiet( floatx80 a, floatx80 b )
-{
- flag aSign, bSign;
-
- if ( ( ( extractFloatx80Exp( a ) == 0x7FFF )
- && (bits64) ( extractFloatx80Frac( a )<<1 ) )
- || ( ( extractFloatx80Exp( b ) == 0x7FFF )
- && (bits64) ( extractFloatx80Frac( b )<<1 ) )
- ) {
- /* Do nothing, even if NaN as we're quiet */
- return 0;
- }
- aSign = extractFloatx80Sign( a );
- bSign = extractFloatx80Sign( b );
- if ( aSign != bSign ) {
- return
- aSign
- && ( ( ( (bits16) ( ( a.high | b.high )<<1 ) ) | a.low | b.low )
- != 0 );
- }
- return
- aSign ? lt128( b.high, b.low, a.high, a.low )
- : lt128( a.high, a.low, b.high, b.low );
-
-}
-
#endif
diff --git a/arch/arm/nwfpe/softfloat.h b/arch/arm/nwfpe/softfloat.h
index df4d243..8a5b2b2 100644
--- a/arch/arm/nwfpe/softfloat.h
+++ b/arch/arm/nwfpe/softfloat.h
@@ -157,9 +157,6 @@ float32 float32_sqrt( struct roundingData*, float32 );
char float32_eq( float32, float32 );
char float32_le( float32, float32 );
char float32_lt( float32, float32 );
-char float32_eq_signaling( float32, float32 );
-char float32_le_quiet( float32, float32 );
-char float32_lt_quiet( float32, float32 );
char float32_is_signaling_nan( float32 );
/*
@@ -189,9 +186,6 @@ float64 float64_sqrt( struct roundingData *, float64 );
char float64_eq( float64, float64 );
char float64_le( float64, float64 );
char float64_lt( float64, float64 );
-char float64_eq_signaling( float64, float64 );
-char float64_le_quiet( float64, float64 );
-char float64_lt_quiet( float64, float64 );
char float64_is_signaling_nan( float64 );
#ifdef FLOATX80
@@ -202,7 +196,6 @@ Software IEC/IEEE extended double-precision conversion routines.
-------------------------------------------------------------------------------
*/
signed int floatx80_to_int32( struct roundingData *, floatx80 );
-signed int floatx80_to_int32_round_to_zero( floatx80 );
float32 floatx80_to_float32( struct roundingData *, floatx80 );
float64 floatx80_to_float64( struct roundingData *, floatx80 );
@@ -219,11 +212,7 @@ floatx80 floatx80_div( struct roundingData *, floatx80, floatx80 );
floatx80 floatx80_rem( struct roundingData *, floatx80, floatx80 );
floatx80 floatx80_sqrt( struct roundingData *, floatx80 );
char floatx80_eq( floatx80, floatx80 );
-char floatx80_le( floatx80, floatx80 );
char floatx80_lt( floatx80, floatx80 );
-char floatx80_eq_signaling( floatx80, floatx80 );
-char floatx80_le_quiet( floatx80, floatx80 );
-char floatx80_lt_quiet( floatx80, floatx80 );
char floatx80_is_signaling_nan( floatx80 );
extern flag floatx80_is_nan(floatx80);
--
1.7.10.4
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