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Subject: [Bug rtl-optimization/98782] [11/12 Regression] Bad interaction
 between IPA frequences and IRA resulting in spills due to changes in BB
 frequencies
Date: Mon, 10 Jan 2022 14:47:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98782

--- Comment #38 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Sandiford <rsandifo@gcc.gnu.o=
rg>:

https://gcc.gnu.org/g:d54565d87ff79b882208dfb29af50232033c233d

commit r12-6413-gd54565d87ff79b882208dfb29af50232033c233d
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Mon Jan 10 14:47:07 2022 +0000

    ira: Add ira_subloop_allocnos_can_differ_p

    color_pass has two instances of the same code for propagating non-cap
    assignments from parent loops to subloops.  This patch adds a helper
    function for testing when such propagations are required for correctness
    and uses it to remove the duplicated code.

    A later patch will use this in ira-build.c too, which is why the
    function is exported to ira-int.h.

    No functional change intended.

    gcc/
            PR rtl-optimization/98782
            * ira-int.h (ira_subloop_allocnos_can_differ_p): New function,
            extracted from...
            * ira-color.c (color_pass): ...here.=