[Bug target/105911] [13 Regression] ICE: in extract_insn, at recog.cc:2791 (error: unrecognizable insn)

cvs-commit at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon Jun 13 08:54:37 GMT 2022


--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:


commit r13-1061-g13ea4a6e830da1f245136601e636dec62e74d1a7
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Mon Jun 13 10:53:33 2022 +0200

    i386: Fix up *<dwi>3_doubleword_mask [PR105911]

    Another regression caused by my recent patch.

    This time because define_insn_and_split only requires that the
    constant mask is const_int_operand.  When it was only SImode,
    that wasn't a problem, HImode neither, but for DImode if we need
    to and the shift count we might run into a problem that it isn't
    a representable signed 32-bit immediate.

    But, we don't really care about the upper bits of the mask, so
    we can just mask the CONST_INT with the mode mask.

    2022-06-13  Jakub Jelinek  <jakub@redhat.com>

            PR target/105911
            * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
            *<insn><dwi>3_doubleword_mask): Use operands[3] masked with
            (<MODE_SIZE> * BITS_PER_UNIT) - 1 as AND operand instead of
            operands[3] unmodified.

            * gcc.dg/pr105911.c: New test.

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