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.