[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077

[aldyh at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Perhaps if EVRP is folding debug stmts it could first fold non-debug stmts (and
remember if there were any debug stmts) and only fold debug stmts afterwards,
either just by using caches and not adding anything to them (if they survive to
later passes), or just to make sure that the debug stmts don't affect non-debug
folding.

--- Comment #8 from Aldy Hernandez <aldyh at redhat dot com> ---
I'll work on it this weekend. If there's no patch by Monday morning, we can
revert the patch while I find a solution.

On Fri, May 28, 2021, 19:49 ro at gcc dot gnu.org <gcc-bugzilla@gcc.gnu.org>
wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787
>
> Rainer Orth <ro at gcc dot gnu.org> changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>              Target|i686                        |i686, sparc
>                  CC|                            |ro at gcc dot gnu.org
>
> --- Comment #6 from Rainer Orth <ro at gcc dot gnu.org> ---
> It also affects 32-bit sparc (sparc-sun-solaris2.11), maybe other 32-bit
> targets, too?  Unless a quick fix is coming forward, I suspect it would be
> better
> to revert the patch instead of keeping bootstrap broken for days.
>
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