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On 22/01/13 05:30, Redmond, Paul wrote: [...] > I'm looking at http://llvm.org/bugs/show_bug.cgi?id=13204 which involves converting calls to sin and cos to sincos (when available) > > Initially I thought about transforming calls to sinf/cosf to sincosf. However, I don't think this is a legal transformation given that a declaration for a function called sinf is not necessarily the

...this yet. > Thanks for the tip. I am able to see sinf to FSIN generation when I compile with -ffast-math. I don't have much experience with the selection dag but I feel like this transformation shouldn't be done at this level (it's more complicated than the transformations done by SelectionDAGCombine) Would it make sense to move library call to intrinsic generation to the IR level? paul

Hi, I'm looking at http://llvm.org/bugs/show_bug.cgi?id=13204 which involves converting calls to sin and cos to sincos (when available) Initially I thought about transforming calls to sinf/cosf to sincosf. However, I don't think this is a legal transformation given that a declaration for a function called sinf is not necessarily the standard library function. Therefore it makes sense to