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Reuse variables. (I'm hope gcc was smart enough to reuse the registers on its own, but I didn't actually check. This way we should be using fewer than 32.)

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This commit is contained in:
Steve Checkoway
2006-06-18 18:41:22 +00:00
parent 66dfad63b0
commit de4a22d9e0
1 changed files with 24 additions and 24 deletions
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stepmania/src/archutils/Darwin/VectorHelper.cpp
+24 -24
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@@ -266,14 +266,14 @@ void Vector::FastSoundRead( int16_t *dest, const int32_t *src, unsigned size )
vSInt32 seventh = vec_ldl( 96, src );
vSInt32 eighth = vec_ldl( 112, src );
vBool32 b1 = vec_cmplt( first, zero );
vBool32 b2 = vec_cmplt( second, zero );
vBool32 b3 = vec_cmplt( third, zero );
vBool32 b4 = vec_cmplt( fourth, zero );
vBool32 b5 = vec_cmplt( fifth, zero );
vBool32 b6 = vec_cmplt( sixth, zero );
vBool32 b7 = vec_cmplt( seventh, zero );
vBool32 b8 = vec_cmplt( eighth, zero );
vSInt32 temp1 = (vSInt32)vec_cmplt( first, zero );
vSInt32 temp2 = (vSInt32)vec_cmplt( second, zero );
vSInt32 temp3 = (vSInt32)vec_cmplt( third, zero );
vSInt32 temp4 = (vSInt32)vec_cmplt( fourth, zero );
vSInt32 temp5 = (vSInt32)vec_cmplt( fifth, zero );
vSInt32 temp6 = (vSInt32)vec_cmplt( sixth, zero );
vSInt32 temp7 = (vSInt32)vec_cmplt( seventh, zero );
vSInt32 temp8 = (vSInt32)vec_cmplt( eighth, zero );
first = vec_sr( vec_abss(first), shift );
second = vec_sr( vec_abss(second), shift );
@@ -284,14 +284,14 @@ void Vector::FastSoundRead( int16_t *dest, const int32_t *src, unsigned size )
seventh = vec_sr( vec_abss(seventh), shift );
eighth = vec_sr( vec_abss(eighth), shift );
vSInt32 temp1 = vec_and( first, (vSInt32)b1 );
vSInt32 temp2 = vec_and( second, (vSInt32)b2 );
vSInt32 temp3 = vec_and( third, (vSInt32)b3 );
vSInt32 temp4 = vec_and( fourth, (vSInt32)b4 );
vSInt32 temp5 = vec_and( fifth, (vSInt32)b5 );
vSInt32 temp6 = vec_and( sixth, (vSInt32)b6 );
vSInt32 temp7 = vec_and( seventh, (vSInt32)b7 );
vSInt32 temp8 = vec_and( eighth, (vSInt32)b8 );
temp1 = vec_and( first, temp1 );
temp2 = vec_and( second, temp2 );
temp3 = vec_and( third, temp3 );
temp4 = vec_and( fourth, temp4 );
temp5 = vec_and( fifth, temp5 );
temp6 = vec_and( sixth, temp6 );
temp7 = vec_and( seventh, temp7 );
temp8 = vec_and( eighth, temp8 );
first = vec_subs( vec_sub(first, temp1), temp1 );
second = vec_subs( vec_sub(second, temp2), temp2 );
@@ -316,16 +316,16 @@ void Vector::FastSoundRead( int16_t *dest, const int32_t *src, unsigned size )
{
vSInt32 first = vec_ldl( 0, src );
vSInt32 second = vec_ldl( 16, src );
vBool32 b1 = vec_cmplt( first, zero );
vBool32 b2 = vec_cmplt( second, zero );
vSInt32 temp1 = (vSInt32)vec_cmplt( first, zero );
vSInt32 temp2 = (vSInt32)vec_cmplt( second, zero );
first = vec_abss( first );
second = vec_abss( second );
first = vec_sr( first, shift );
second = vec_sr( second, shift );
vSInt32 temp1 = vec_and( first, (vSInt32)b1 );
vSInt32 temp2 = vec_and( second, (vSInt32) b2 );
temp1 = vec_and( first, temp1 );
temp2 = vec_and( second, temp2 );
first = vec_subs( first, temp1 );
second = vec_subs( second, temp2 );
@@ -342,16 +342,16 @@ void Vector::FastSoundRead( int16_t *dest, const int32_t *src, unsigned size )
// Deal with the remaining samples but be careful while storing as above.
vSInt32 first = vec_ldl( 0, src );
vSInt32 second = size > 4 ? vec_ldl( 16, src ) : (vSInt32)( 0 );
vBool32 b1 = vec_cmplt( first, zero );
vBool32 b2 = vec_cmplt( second, zero );
vSInt32 temp1 = (vSInt32)vec_cmplt( first, zero );
vSInt32 temp2 = (vSInt32)vec_cmplt( second, zero );
first = vec_abss( first );
second = vec_abss( second );
first = vec_sr( first, shift );
second = vec_sr( second, shift );
vSInt32 temp1 = vec_and( first, (vSInt32)b1 );
vSInt32 temp2 = vec_and( second, (vSInt32) b2 );
temp1 = vec_and( first, temp1 );
temp2 = vec_and( second, temp2 );
first = vec_subs( first, temp1 );
second = vec_subs( second, temp2 );