http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52391
--- Comment #12 from Steven Bosscher <steven at gcc dot gnu.org> 2012-05-05 10:06:32 UTC --- Created attachment 27315 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27315 Avoid diving deep through generated IOR trees for EQ_ATTR This patch tries to keep IOR-trees for EQ_ATTR tests together. This improves genattrtab run time and also the generated code because more get_attr_* results are cached. On gcc110, the run time for genattrtab for m68k goes down from 9m3s to 4m15s. The difference in insn-attrtab looks like an improvement at first glance, but I could use some help interpreting the differences. (Will attach shortly.) (The cf.md bit only sorts the attributes alphabetically but doesn't change the genattrtab run time.)
