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Re: [PATCH][GRAPHITE] More TLC
On Mon, 25 Sep 2017, Richard Biener wrote:
> On Fri, 22 Sep 2017, Richard Biener wrote:
>
> >
> > This simplifies canonicalize_loop_closed_ssa and does other minimal
> > TLC. It also adds a testcase I reduced from a stupid mistake I made
> > when reworking canonicalize_loop_closed_ssa.
> >
> > Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
> >
> > SPEC CPU 2006 is happy with it, current statistics on x86_64 with
> > -Ofast -march=haswell -floop-nest-optimize are
> >
> > 61 loop nests "optimized"
> > 45 loop nest transforms cancelled because of code generation issues
> > 21 loop nest optimizations timed out the 350000 ISL "operations" we allow
>
> Overall compile time (with -j6) is 695 sec. w/o -floop-nest-optimize
> and 709 sec. with (this was with release checking).
>
> A single-run has 416.gamess (580s -> 618s),
> 436.cactusADM (206s -> 182s), 437.leslie3d (228s ->218s),
> 450.soplex (229s -> 226s), 465.tonto (428s -> 425s), 401.bzip2 (383s ->
> 379s), 462.libquantum (352s -> 343s), ignoring +-2s changes. Will
> do a 3-run for those to confirm (it would be only a single regression
> for 416.gamess).
416.gamess regression confirmed, 450.soplex improvement as well,
in the three-run 462.libquantum regresses (344s -> 351s) so I suppose
that's noise.
Richard.