subject:"\[Bug tree\-optimization\/83661\] sincos does not handle sin\(2x\)"

[Bug tree-optimization/83661] sincos does not handle sin(2x)

2021-05-04 Thread rguenth at gcc dot gnu.org via Gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661 Richard Biener changed: What|Removed |Added Status|NEW |ASSIGNED

[Bug tree-optimization/83661] sincos does not handle sin(2x)

2019-09-02 Thread wilco at gcc dot gnu.org

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661 --- Comment #9 from Wilco --- (In reply to Christophe Monat from comment #4) > Hi Pratamesh, > > You're absolutely right - maybe it's more efficient when there is some > hardware sincos available (Intel FSINCOS ?) but I would check also carefull

[Bug tree-optimization/83661] sincos does not handle sin(2x)

2019-09-02 Thread wilco at gcc dot gnu.org

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661 Wilco changed: What|Removed |Added CC||wilco at gcc dot gnu.org --- Comment #8 from Wil

[Bug tree-optimization/83661] sincos does not handle sin(2x)

2019-09-02 Thread mkuvyrkov at gcc dot gnu.org

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661 Maxim Kuvyrkov changed: What|Removed |Added CC||mkuvyrkov at gcc dot gnu.org --- Commen

[Bug tree-optimization/83661] sincos does not handle sin(2x)

2019-08-30 Thread christophe.monat at st dot com

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661 --- Comment #6 from Christophe Monat --- (In reply to Alexander Monakov from comment #5) > sincos performs range reduction for the argument just once, which is fairly > important. A well-optimized sincos also shares some computations for the > si

[Bug tree-optimization/83661] sincos does not handle sin(2x)

2019-08-30 Thread amonakov at gcc dot gnu.org

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661 --- Comment #5 from Alexander Monakov --- sincos performs range reduction for the argument just once, which is fairly important. A well-optimized sincos also shares some computations for the sin/cos parts, as done in https://github.com/ARM-softwa

[Bug tree-optimization/83661] sincos does not handle sin(2x)

2019-08-30 Thread christophe.monat at st dot com

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661 --- Comment #4 from Christophe Monat --- Hi Pratamesh, You're absolutely right - maybe it's more efficient when there is some hardware sincos available (Intel FSINCOS ?) but I would check also carefully the actual performance. Indeed, it looks

[Bug tree-optimization/83661] sincos does not handle sin(2x)

2019-08-30 Thread prathamesh3492 at gcc dot gnu.org

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661 --- Comment #3 from prathamesh3492 at gcc dot gnu.org --- Oh, I thought sincos simultaneously calculated values of sin and cos ? If that's not the case, then I wonder how is sincos transform itself beneficial ? Thanks, Prathamesh