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[PATCH] ARM: 2851/1: Fix NWFPE extended precision exception handling
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Patch from Richard Purdie

The exception handling code fails to compile if the extended
precision mode is enabled. This patch fixes those compile errors and
also stops _quiet functions from incorrectly raising exceptions.
Reported-by: Ralph Siemsen <ralphs@netwinder.org>

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Richard Purdie authored and Russell King committed Aug 15, 2005
1 parent d93742f commit 54738e8
Showing 1 changed file with 10 additions and 24 deletions.
34 changes: 10 additions & 24 deletions arch/arm/nwfpe/softfloat.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1602,9 +1602,7 @@ flag float32_le_quiet( float32 a, float32 b )
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 );
}
/* Do nothing, even if NaN as we're quiet */
return 0;
}
aSign = extractFloat32Sign( a );
Expand All @@ -1629,9 +1627,7 @@ flag float32_lt_quiet( float32 a, float32 b )
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 );
}
/* Do nothing, even if NaN as we're quiet */
return 0;
}
aSign = extractFloat32Sign( a );
Expand Down Expand Up @@ -2493,9 +2489,7 @@ flag float64_le_quiet( float64 a, float64 b )
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 );
}
/* Do nothing, even if NaN as we're quiet */
return 0;
}
aSign = extractFloat64Sign( a );
Expand All @@ -2520,9 +2514,7 @@ flag float64_lt_quiet( float64 a, float64 b )
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 );
}
/* Do nothing, even if NaN as we're quiet */
return 0;
}
aSign = extractFloat64Sign( a );
Expand Down Expand Up @@ -3256,7 +3248,7 @@ flag floatx80_eq( floatx80 a, floatx80 b )
) {
if ( floatx80_is_signaling_nan( a )
|| floatx80_is_signaling_nan( b ) ) {
roundData->exception |= float_flag_invalid;
float_raise( float_flag_invalid );
}
return 0;
}
Expand Down Expand Up @@ -3286,7 +3278,7 @@ flag floatx80_le( floatx80 a, floatx80 b )
|| ( ( extractFloatx80Exp( b ) == 0x7FFF )
&& (bits64) ( extractFloatx80Frac( b )<<1 ) )
) {
roundData->exception |= float_flag_invalid;
float_raise( float_flag_invalid );
return 0;
}
aSign = extractFloatx80Sign( a );
Expand Down Expand Up @@ -3320,7 +3312,7 @@ flag floatx80_lt( floatx80 a, floatx80 b )
|| ( ( extractFloatx80Exp( b ) == 0x7FFF )
&& (bits64) ( extractFloatx80Frac( b )<<1 ) )
) {
roundData->exception |= float_flag_invalid;
float_raise( float_flag_invalid );
return 0;
}
aSign = extractFloatx80Sign( a );
Expand Down Expand Up @@ -3353,7 +3345,7 @@ flag floatx80_eq_signaling( floatx80 a, floatx80 b )
|| ( ( extractFloatx80Exp( b ) == 0x7FFF )
&& (bits64) ( extractFloatx80Frac( b )<<1 ) )
) {
roundData->exception |= float_flag_invalid;
float_raise( float_flag_invalid );
return 0;
}
return
Expand Down Expand Up @@ -3382,10 +3374,7 @@ flag floatx80_le_quiet( floatx80 a, floatx80 b )
|| ( ( extractFloatx80Exp( b ) == 0x7FFF )
&& (bits64) ( extractFloatx80Frac( b )<<1 ) )
) {
if ( floatx80_is_signaling_nan( a )
|| floatx80_is_signaling_nan( b ) ) {
roundData->exception |= float_flag_invalid;
}
/* Do nothing, even if NaN as we're quiet */
return 0;
}
aSign = extractFloatx80Sign( a );
Expand Down Expand Up @@ -3419,10 +3408,7 @@ flag floatx80_lt_quiet( floatx80 a, floatx80 b )
|| ( ( extractFloatx80Exp( b ) == 0x7FFF )
&& (bits64) ( extractFloatx80Frac( b )<<1 ) )
) {
if ( floatx80_is_signaling_nan( a )
|| floatx80_is_signaling_nan( b ) ) {
roundData->exception |= float_flag_invalid;
}
/* Do nothing, even if NaN as we're quiet */
return 0;
}
aSign = extractFloatx80Sign( a );
Expand Down

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