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[Bug gas/29525] x86: CMPSD and MOVSD wrongly accepted in AT&T mode


From: cvs-commit at gcc dot gnu.org
Subject: [Bug gas/29525] x86: CMPSD and MOVSD wrongly accepted in AT&T mode
Date: Mon, 12 Dec 2022 12:54:10 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=29525

--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Jan Beulich <jbeulich@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=04784e33fabb45c4de7a901587f468d4bc169649

commit 04784e33fabb45c4de7a901587f468d4bc169649
Author: Jan Beulich <jbeulich@suse.com>
Date:   Mon Dec 12 13:51:46 2022 +0100

    x86: re-work insn/suffix recognition

    Having templates with a suffix explicitly present has always been
    quirky. Introduce a 2nd matching pass in case the 1st one couldn't find
    a suitable template _and_ didn't itself already need to trim off a
    suffix to find a match at all. This requires error reporting adjustments
    (albeit luckily fewer than I was afraid might be necessary), as errors
    previously reported during matching now need deferring until after the
    2nd pass (because, obviously, we must not emit any error if the 2nd pass
    succeeds). While also related to PR gas/29524, it was requested that
    move-with-sign-extend be left as broken as it always was.

    PR gas/29525
    Note that with the dropped CMPSD and MOVSD Intel Syntax string insn
    templates taking operands, mixed IsString/non-IsString template groups
    (with memory operands) cannot occur anymore. With that
    maybe_adjust_templates() becomes unnecessary (and is hence being
    removed).

    PR gas/29526
    Note further that while the additions to the intel16 testcase aren't
    really proper Intel syntax, we've been permitting all of those except
    for the MOVD variant. The test therefore is to avoid re-introducing such
    an inconsistency.

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