public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug tree-optimization/104935] New: [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 @ 2022-03-15 12:15 marxin at gcc dot gnu.org 2022-03-15 12:25 ` [Bug tree-optimization/104935] " rguenth at gcc dot gnu.org ` (4 more replies) 0 siblings, 5 replies; 6+ messages in thread From: marxin at gcc dot gnu.org @ 2022-03-15 12:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104935 Bug ID: 104935 Summary: [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: marxin at gcc dot gnu.org CC: rguenth at gcc dot gnu.org Blocks: 26163 Target Milestone: --- Can be seen here: https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=475.528.4 increased (w/o debug info) from 1316272 B to 1414656 B. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163 [Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95) ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104935] [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 2022-03-15 12:15 [Bug tree-optimization/104935] New: [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 marxin at gcc dot gnu.org @ 2022-03-15 12:25 ` rguenth at gcc dot gnu.org 2022-03-15 12:56 ` marxin at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-03-15 12:25 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104935 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |12.0 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Possibly back to the level it had before (or with GCC 11). There's likely quite some changes, somebody needs to extract examples. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104935] [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 2022-03-15 12:15 [Bug tree-optimization/104935] New: [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 marxin at gcc dot gnu.org 2022-03-15 12:25 ` [Bug tree-optimization/104935] " rguenth at gcc dot gnu.org @ 2022-03-15 12:56 ` marxin at gcc dot gnu.org 2022-03-16 15:03 ` rguenth at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: marxin at gcc dot gnu.org @ 2022-03-15 12:56 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104935 --- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> --- And the revision is also responsible for slower build time here of 481.wrf: https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=301.270.8 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104935] [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 2022-03-15 12:15 [Bug tree-optimization/104935] New: [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 marxin at gcc dot gnu.org 2022-03-15 12:25 ` [Bug tree-optimization/104935] " rguenth at gcc dot gnu.org 2022-03-15 12:56 ` marxin at gcc dot gnu.org @ 2022-03-16 15:03 ` rguenth at gcc dot gnu.org 2022-05-06 8:33 ` [Bug tree-optimization/104935] [12/13 " jakub at gcc dot gnu.org 2022-07-26 12:42 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-03-16 15:03 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104935 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- So in 554.roms_r I see cases (like for mod_grid.F90:allocate_grid) where we now vectorize more V4DI stores from a CTOR of scalars which reduces code size so jump-threading now goes wild (from DOM threading), threading across the long repetition of if (div == 0) ; else ... = ... / div; <vectorized blob> if (div == 0) ; else ... = ... / div; where the vectorized blob is now smaller than the threading threshold. For extract_sta.F90 we now vectorize two more loops with low VF (high VF is not profitable) but using only strided loads (they are reductions) which has extra size cost on the scalar epilogues plus we are vectorizing conditional reductions here. It doesn't look overly bad here. There's also a TU with a size win btw, but overall we vectorize more. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104935] [12/13 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 2022-03-15 12:15 [Bug tree-optimization/104935] New: [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 marxin at gcc dot gnu.org ` (2 preceding siblings ...) 2022-03-16 15:03 ` rguenth at gcc dot gnu.org @ 2022-05-06 8:33 ` jakub at gcc dot gnu.org 2022-07-26 12:42 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2022-05-06 8:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104935 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|12.0 |12.2 --- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- GCC 12.1 is being released, retargeting bugs to GCC 12.2. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104935] [12/13 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 2022-03-15 12:15 [Bug tree-optimization/104935] New: [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 marxin at gcc dot gnu.org ` (3 preceding siblings ...) 2022-05-06 8:33 ` [Bug tree-optimization/104935] [12/13 " jakub at gcc dot gnu.org @ 2022-07-26 12:42 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-07-26 12:42 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104935 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |WONTFIX Status|UNCONFIRMED |RESOLVED --- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- I think it's sufficiently understood and not a bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-07-26 12:42 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-03-15 12:15 [Bug tree-optimization/104935] New: [12 Regression] 554.roms_r ELF binary increased with r12-7612-g69619acd8d9b5856 marxin at gcc dot gnu.org 2022-03-15 12:25 ` [Bug tree-optimization/104935] " rguenth at gcc dot gnu.org 2022-03-15 12:56 ` marxin at gcc dot gnu.org 2022-03-16 15:03 ` rguenth at gcc dot gnu.org 2022-05-06 8:33 ` [Bug tree-optimization/104935] [12/13 " jakub at gcc dot gnu.org 2022-07-26 12:42 ` rguenth at gcc dot gnu.org
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).