[Bug tree-optimization/101291] [10/11 Regression] turns infinite loop into finite

2021-07-13 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101291

--- Comment #12 from CVS Commits  ---
The releases/gcc-11 branch has been updated by Richard Biener
:

https://gcc.gnu.org/g:5df86357becfc5c3a676b9f506bf2c1c625306f2

commit r11-8725-g5df86357becfc5c3a676b9f506bf2c1c625306f2
Author: Richard Biener 
Date:   Mon Jul 5 11:53:07 2021 +0200

middle-end/101291 - set loop copy of versioned loop

This fixes the vectorizer loop versioning code failing to clear
niter related info on the scalar loop as it assumed get_loop_copy
would work even for the outermost loop.  The patch makes that
assumption hold by adjusting the loop versioning code.

2021-07-05  Richard Biener  

PR middle-end/101291
* cfgloopmanip.c (loop_version): Set the loop copy of the
versioned loop to the new loop.

(cherry picked from commit 38872c6c0db1b10b17d3913b277c499913208d0b)

[Bug tree-optimization/101291] [10/11 Regression] turns infinite loop into finite

2021-07-05 Thread rguenth at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101291

Richard Biener  changed:

   What|Removed |Added

  Known to work||12.0
Summary|[10/11/12 Regression] turns |[10/11 Regression] turns
   |infinite loop into finite   |infinite loop into finite

--- Comment #11 from Richard Biener  ---
Fixed on trunk sofar.