https://gcc.gnu.org/bugzilla/show_bug.cgi?id=12245
--- Comment #69 from rguenther at suse dot de <rguenther at suse dot de> --- On February 27, 2019 8:52:12 PM GMT+01:00, fche at redhat dot com <gcc-bugzi...@gcc.gnu.org> wrote: >https://gcc.gnu.org/bugzilla/show_bug.cgi?id=12245 > >--- Comment #68 from Frank Ch. Eigler <fche at redhat dot com> --- >(In reply to Jakub Jelinek from comment #67) >> Are the values completely random or are there big chunks with the >same >> values? > >I'd suspect pretty random, considering that gzip of the >generated source code compresses by only 80%. In the case >of the systemtap example, it's approximately a byte dump of the >.debug_line section, which is relatively efficiently encoded, >ergo incompressible. We could add a NATIVE_ENCODE_RANGE_EXPR that encodes a contiguous range of bytes in native target representation. Of course that has to be kept throughout GIMPLE.
