On Tue, 2014-09-02 at 00:03 -0700, Andi Kleen wrote: > From: Andi Kleen <a...@linux.intel.com> > > I noticed that with the trunk compiler a range of the new rtl > inlines show up as hot in a profiler during stage1. I think > that happens because stage1 is not using optimization > and does not inline plain "inline". And these rtl inlines > are very frequently called.
Sorry about that. FWIW I'm working on some followup patches for the rtx-classes work that ought to eliminate some of the is_a_helper<> calls; I hope to post them in the next few days. [1] I suspect the bulk of them currently are coming from the safe_as_a <rtx_insn *> calls within NEXT_INSN and PREV_INSN; do you happen to have information handy on that? Dave [1] (I have to take the rest of today off for a family matter).
