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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/84402] [meta] GCC build system: parallelism
 bottleneck
Date: Fri, 05 May 2023 12:47:54 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D84402

--- Comment #66 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tamar Christina <tnfchris@gcc.gnu.org=
>:

https://gcc.gnu.org/g:e487fcc0f7466ea663a0fea52076337bebd42b8b

commit r14-497-ge487fcc0f7466ea663a0fea52076337bebd42b8b
Author: Tamar Christina <tamar.christina@arm.com>
Date:   Fri May 5 13:36:01 2023 +0100

    match.pd: Remove commented out line pragmas unless -vv is used.

    genmatch currently outputs commented out line directives that have no
effect
    but the compiler still has to parse only to discard.

    They are however handy when debugging genmatch output.  As such this mo=
ves
them
    behind the -vv flag.

    gcc/ChangeLog:

            PR bootstrap/84402
            * genmatch.cc (output_line_directive): Only emit commented
directive
            when -vv.=