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Subject: [Bug target/110787] [14 regression] ICE building SYSTEM.def
Date: Sat, 29 Jul 2023 16:08:57 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110787

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Roger Sayle <sayle@gcc.gnu.org>:

https://gcc.gnu.org/g:e68a31549d9827030391d837951be96a5f95f291

commit r14-2866-ge68a31549d9827030391d837951be96a5f95f291
Author: Roger Sayle <roger@nextmovesoftware.com>
Date:   Sat Jul 29 17:07:58 2023 +0100

    [Committed] Use QImode for offsets in zero_extract/sign_extract in i386=
.md

    As suggested by Uros, this patch changes the ZERO_EXTRACTs and
SIGN_EXTRACTs
    in i386.md to consistently use QImode for bit offsets (i.e. third and
fourth
    operands), matching the use of QImode for bit counts in shifts and rota=
tes.

    This iteration also corrects the "ne:QI" vs "eq:QI" mistake in the prev=
ious
    version, which was responsible for PR 110787 and PR 110790 and so was
    rapidly reverted last weekend.  New test cases have been added to check
    the correct behaviour.

    2023-07-29  Roger Sayle  <roger@nextmovesoftware.com>

    gcc/ChangeLog
            PR target/110790
            * config/i386/i386.md (extv<mode>): Use QImode for offsets.
            (extzv<mode>): Likewise.
            (insv<mode>): Likewise.
            (*testqi_ext_3): Likewise.
            (*btr<mode>_2): Likewise.
            (define_split): Likewise.
            (*btsq_imm): Likewise.
            (*btrq_imm): Likewise.
            (*btcq_imm): Likewise.
            (define_peephole2 x3): Likewise.
            (*bt<mode>): Likewise
            (*bt<mode>_mask): New define_insn_and_split.
            (*jcc_bt<mode>): Use QImode for offsets.
            (*jcc_bt<mode>_1): Delete obsolete pattern.
            (*jcc_bt<mode>_mask): Use QImode offsets.
            (*jcc_bt<mode>_mask_1): Likewise.
            (define_split): Likewise.
            (*bt<mode>_setcqi): Likewise.
            (*bt<mode>_setncqi): Likewise.
            (*bt<mode>_setnc<mode>): Likewise.
            (*bt<mode>_setncqi_2): Likewise.
            (*bt<mode>_setc<mode>_mask): New define_insn_and_split.
            (bmi2_bzhi_<mode>3): Use QImode offsets.
            (*bmi2_bzhi_<mode>3): Likewise.
            (*bmi2_bzhi_<mode>3_1): Likewise.
            (*bmi2_bzhi_<mode>3_1_ccz): Likewise.
            (@tbm_bextri_<mode>): Likewise.

    gcc/testsuite/ChangeLog
            PR target/110790
            * gcc.target/i386/pr110790-1.c: New test case.
            * gcc.target/i386/pr110790-2.c: Likewise.=