On Fri, Jan 29, 2016 at 12:09 AM, Richard Biener <rguent...@suse.de> wrote: > I wonder if rather than introducing a target hook ports could use > a define_expand expanding to a libcall for this case?
Of the two divmod libcall APIs, one requires a stack temporary, which would be awkward to allocate in a define_expand. Though we could have expand_twoval_binop implement the libgcc udivmoddi4 API which requires a stack temp, and then add an ARM divmod expander that implements the ARM API which has a double-wide result. That sounds like it could work. Jim
