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Subject: [Bug tree-optimization/103231] [12 Regression] ICE
 (nondeterministic/stack overflow) on valid code at -O1 on x86_64-linux-gnu:
 Segmentation fault since r12-5014-g6b8b959675a3e14c
Date: Wed, 24 Nov 2021 14:06:04 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103231

--- Comment #13 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Andrew Macleod <amacleod@gcc.gnu.org>:

https://gcc.gnu.org/g:5deacf6058d1bc7261a75c9fd1f116c4442e9e60

commit r12-5505-g5deacf6058d1bc7261a75c9fd1f116c4442e9e60
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Mon Nov 22 14:39:41 2021 -0500

    Directly resolve range_of_stmt dependencies.

    All ranger API entries eventually call range_of_stmt to ensure there is=
 an
    initial global value to work with.  This can cause very deep call chains
when
    satisfied via the normal API.  Instead, push any dependencies onto a st=
ack
    and evaluate them in a depth first manner, mirroring what would have
happened
    via the normal API calls.

            PR tree-optimization/103231
            gcc/
            * gimple-range.cc (gimple_ranger::gimple_ranger): Create stmt
stack.
            (gimple_ranger::gimple_ranger): Delete stmt stack.
            (gimple_ranger::range_of_stmt): Process depenedencies if they h=
ave
no
            global cache entry.
            (gimple_ranger::prefill_name): New.
            (gimple_ranger::prefill_stmt_dependencies): New.
            * gimple-range.h (class gimple_ranger): Add prototypes.=