[Bug target/84272] [8 Regression] AddressSanitizer: heap-use-after-free ../../gcc/config/aarch64/cortex-a57-fma-steering.c:519 in fma_node::get_parity()

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84272

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #43381|0                           |1
        is obsolete|                            |
  Attachment #43382|0                           |1
        is obsolete|                            |
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 43384
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43384&action=edit
gcc8-pr84272.patch

So like this?  A few additional changes, Florian Weimer suggested using
preincrement instead of postincrement with the C++ iterators, and I hope there
are no pointers in between different forest, so it should be fine to free
already when processing of the forest is done, rather than waiting until all
forests are processed.

Could somebody test it on aarch64-linux please?