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Subject: [Bug tree-optimization/102560] [12 Regression] g++.dg/Walloca1.C ICE
 with aggressive GC
Date: Mon, 04 Oct 2021 11:20:54 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102560

--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Aldy Hernandez <aldyh@gcc.gnu.org>:

https://gcc.gnu.org/g:fa3ccf8bfe9940b439d6cc2c38ee8da134b0ff2d

commit r12-4139-gfa3ccf8bfe9940b439d6cc2c38ee8da134b0ff2d
Author: Aldy Hernandez <aldyh@redhat.com>
Date:   Sun Oct 3 19:42:10 2021 +0200

    Remove static marker for range in alloca pass.

    The m_ranges[] field in int_range<N> are trees, so they live in GC
    space.  Since invalid_range is static, it must be marked with GTY
    magic.  However, calculating invalid_range is not particularly slow,
    or on a critical path, so we can just put it in local scope and
    recalculate every time.

    Tested on x86-64 Linux.

    gcc/ChangeLog:

            PR tree-optimization/102560
            * gimple-ssa-warn-alloca.c (alloca_call_type): Remove static
            marker for invalid_range.

    gcc/testsuite/ChangeLog:

            * g++.dg/Walloca2.C: New test.=