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use fcadd in TimesI and TimesMinusI instead of tbl and neg

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nmeyer-ur 2020-06-02 10:32:44 +02:00
parent 5f52804907
commit 9b2699226c
1 changed files with 46 additions and 0 deletions
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46
Grid/simd/Grid_a64fx-fixedsize.h
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@ -419,6 +419,7 @@ struct Conj{
} }
}; };
/*
struct TimesMinusI{ struct TimesMinusI{
// Complex float // Complex float
inline vecf operator()(vecf a, vecf b){ inline vecf operator()(vecf a, vecf b){
@ -441,7 +442,29 @@ struct TimesMinusI{
return svneg_m(a_v, pg_odd, a_v); return svneg_m(a_v, pg_odd, a_v);
} }
}; };
*/
// alternative implementation using fcadd
// this is not optimal because we have op1 = op2 + TimesMinusI(op3) etc
// ideally we have AddTimesMinusI(op1,op2,op3)
struct TimesMinusI{
// Complex float
inline vecf operator()(vecf a, vecf b){
pred pg1 = acle<float>::pg1();
vecf z_v = acle<float>::zero();
return svcadd_x(pred, zero, a, 270);
}
// Complex double
inline vecd operator()(vecd a, vecd b){
pred pg1 = acle<float>::pg1();
vecd z_v = acle<float>::zero();
return svcadd_x(pred, zero, a, 270);
}
};
/*
struct TimesI{ struct TimesI{
// Complex float // Complex float
inline vecf operator()(vecf a, vecf b){ inline vecf operator()(vecf a, vecf b){
@ -464,6 +487,29 @@ struct TimesI{
return svneg_m(a_v, pg_even, a_v); return svneg_m(a_v, pg_even, a_v);
} }
}; };
*/
// alternative implementation using fcadd
// this is not optimal because we have op1 = op2 + TimesI(op3) etc
// ideally we have AddTimesI(op1,op2,op3)
struct TimesI{
// Complex float
inline vecf operator()(vecf a, vecf b){
pred pg1 = acle<float>::pg1();
vecf z_v = acle<float>::zero();
return svcadd_x(pred, zero, a, 90);
}
// Complex double
inline vecd operator()(vecd a, vecd b){
pred pg1 = acle<float>::pg1();
vecd z_v = acle<float>::zero();
return svcadd_x(pred, zero, a, 90);
}
};
struct PrecisionChange { struct PrecisionChange {
static inline vech StoH (vecf sa, vecf sb) { static inline vech StoH (vecf sa, vecf sb) {