On 11/19/18 1:17 PM, Vladimir Makarov wrote: > On 11/16/2018 02:15 PM, Peter Bergner wrote: >> PR88033 shows a problem when handling simple copies from a register to >> itself: >> >> (insn (set (reg:DI NNN) (reg:DI NNN))) >> >> This was causing confusion in the code that performs liveness and conflict >> updates and program point updates in lra-lives.c. Trying to handle these >> types of copies would add some ugly code. It's easier to just bail on them >> in non_conflicting_reg_copy_p() altogether, since by definition, a register >> does not conflict with itself and so needs no special handling. The patch >> below implements that and fixes the ICE. >> >> This is currently bootstrapping and regtesting on x86_64-linux. >> Ok for mainline assuming the tests show no regressions? >> > OK. Thank you, Peter.
Thanks, this is now committed. Peter
