[Bug target/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter starting with r14-4499

cvs-commit at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon Oct 23 02:02:48 GMT 2023


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Haochen Jiang <jianghc@gcc.gnu.org>:

https://gcc.gnu.org/g:1df490edd48042b07aa780b088148a9118cbcb46

commit r14-4841-g1df490edd48042b07aa780b088148a9118cbcb46
Author: Haochen Jiang <haochen.jiang@intel.com>
Date:   Thu Oct 19 16:39:16 2023 +0800

    i386: Prevent splitting to xmm16+ when !TARGET_AVX512VL

    Currently, there will be a chance in split to use x/ymm16+ w/o AVX512VL,
    which finally leads to an ICE as pr111753 does.

    This patch aims to fix that.

    gcc/ChangeLog:

            PR target/111753
            * config/i386/i386.cc (ix86_standard_x87sse_constant_load_p):
            Do not split to xmm16+ when !TARGET_AVX512VL.

    gcc/testsuite/ChangeLog:

            PR target/111753
            * gcc.target/i386/pr111753.c: New test.


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