Hi Paulo, On Tue, Nov 06, 2018 at 09:35:35PM +0100, Paulo Matos wrote: > I remember from awhile ago that there's some option (or there was...) > that gets GCC to print some register allocation information together > with the assembler output. > > I am interested in obtaining the live registers per basic block. I think > the option I had in mind did that but I can't remember the option name > anymore. Can someone point me out to the option or a way to extract such > information?
-fdump-rtl-alignments[-all] is the last dump with all that information I think. This one also has all this info without -all it seems. With -all it shows it interleaving the RTL dump as well, which may or may not be handy for you. Segher