search for: expanddivremlibcall

...ters. I've changed ARMISelLowering::ARMTargetLowering::ARMTargetLowering() to associate __aeabi_idivmod variants to RTLIB::{U,S}DIVREM_* library calls, but now I need to teach the expansion that on AEABI case, the remainder is not on the stack, but on registers. However, SelectionDAGLegalize::ExpandDivRemLibCall() assumes the remainder is *always* on the stack, as is the case for GNU: // Remainder is loaded back from the stack frame. SDValue Rem = DAG.getLoad(RetVT, dl, CallInfo.second, FIPtr, MachinePointerInfo(), false, false, false, 0); Since I don't want to add a t...

Hi Renato, > * Have some call-back mechanism, possibly upon a flag > (HasSpecialDivRemLowering), and update the remainder result If you setOperationAction on SDIVREM and UDIVREM to Custom you can expand the rtlib call appropriately yourself. There's precedent for sincos on Darwin systems (both ARM and x86) and in AArch64 for basically every operation on fp128. Cheers. Tim.