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Subject: [Bug tree-optimization/101014] [12 Regression] Big compile time hog
 with -O3 since r12-1268-g9858cd1a6827ee7a
Date: Wed, 23 Jun 2021 14:26:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101014

--- Comment #19 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:a03e944e92ee51ae583382079d4739b64bd93b35

commit r12-1750-ga03e944e92ee51ae583382079d4739b64bd93b35
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Tue Jun 22 17:46:05 2021 -0400

    Do not continue propagating values which cannot be set properly.

    If the on-entry cache cannot properly represent a range, do not continue
    trying to propagate it.

            PR tree-optimization/101148
            PR tree-optimization/101014
            * gimple-range-cache.cc (ranger_cache::ranger_cache): Adjust.
            (ranger_cache::~ranger_cache): Adjust.
            (ranger_cache::block_range): Check if propagation disallowed.
            (ranger_cache::propagate_cache): Disallow propagation if new va=
lue
            can't be stored properly.
            * gimple-range-cache.h (ranger_cache::m_propfail): New member.=