[Bug tree-optimization/103837] [9/10/11/12 Regression] '-fcompare-debug' failure (length) w/ -Og -fmove-loop-invariants -fnon-call-exceptions -fno-tree-dce

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103837

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-12-27
                 CC|                            |jakub at gcc dot gnu.org
            Summary|[12 Regression]             |[9/10/11/12 Regression]
                   |'-fcompare-debug' failure   |'-fcompare-debug' failure
                   |(length) w/ -Og             |(length) w/ -Og
                   |-fmove-loop-invariants      |-fmove-loop-invariants
                   |-fnon-call-exceptions       |-fnon-call-exceptions
                   |-fno-tree-dce               |-fno-tree-dce
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
With the above options it started with
r12-3221-g1313111fdec0d0de4228b5e839ca728b3e4b106e
If I add -fexceptions, it started with
r12-2307-gb15e301748f0e042379909e32b3ade439dd8f8f9
With additional -fdelete-dead-exceptions it started with
r6-701-gaa953e2fc52e2196d62b9669a69c9e82de43dc3c