[Bug tree-optimization/95056] [11 Regression] slp-perm-9.c fails on aarch64 after gbc484e250990393e887f7239157cc85ce6fadcce

[clyon at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95056

--- Comment #4 from Christophe Lyon  ---
Yes, it started passing again with r11-4728
g:4d76079fdfa3d36ebd95ac8b489519945e8ee88f

[Bug tree-optimization/95056] [11 Regression] slp-perm-9.c fails on aarch64 after gbc484e250990393e887f7239157cc85ce6fadcce

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95056

Richard Biener  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|ASSIGNED|RESOLVED

--- Comment #3 from Richard Biener  ---
Re-testing with a cross shows exactly one "permutation requires at least three
vectors" so I assume fixed.

[Bug tree-optimization/95056] [11 Regression] slp-perm-9.c fails on aarch64 after gbc484e250990393e887f7239157cc85ce6fadcce

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95056

Richard Biener  changed:

   What|Removed |Added

   Priority|P3  |P1

[Bug tree-optimization/95056] [11 Regression] slp-perm-9.c fails on aarch64 after gbc484e250990393e887f7239157cc85ce6fadcce

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95056

Richard Biener  changed:

   What|Removed |Added

 Status|NEW |ASSIGNED
   Assignee|unassigned at gcc dot gnu.org  |rguenth at gcc dot 
gnu.org

[Bug tree-optimization/95056] [11 Regression] slp-perm-9.c fails on aarch64 after gbc484e250990393e887f7239157cc85ce6fadcce

[acoplan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95056

Alex Coplan  changed:

   What|Removed |Added

   Last reconfirmed||2020-06-09
 Status|UNCONFIRMED |NEW
 Ever confirmed|0   |1

--- Comment #2 from Alex Coplan  ---
I've reproduced this failure on arm-none-eabi, aarch64-none-elf, and
aarch64-linux-gnu.

I believe this was introduced in bc484e250990393e887f7239157cc85ce6fadcce.

[Bug tree-optimization/95056] [11 Regression] slp-perm-9.c fails on aarch64 after gbc484e250990393e887f7239157cc85ce6fadcce

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95056

Richard Biener  changed:

   What|Removed |Added

Version|10.0|11.0
  Component|target  |tree-optimization
   Target Milestone|--- |11.0
   Keywords||missed-optimization
Summary|slp-perm-9.c fails on   |[11 Regression]
   |aarch64 after   |slp-perm-9.c fails on
   |gbc484e250990393e887f723915 |aarch64 after
   |7cc85ce6fadcce  |gbc484e250990393e887f723915
   ||7cc85ce6fadcce

--- Comment #1 from Richard Biener  ---
Hmm, load-lane support should be unaffected (but I didn't test obviously).  I
hope aarch64 folks can investigate - eventually the permute check done in
vectorizable_load needs adjustment / moving.