https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98537

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>:

https://gcc.gnu.org/g:8d0737d8f4b10bffe0411507ad2dc21ba7679883

commit r11-7116-g8d0737d8f4b10bffe0411507ad2dc21ba7679883
Author: liuhongt <hongtao....@intel.com>
Date:   Thu Jan 7 10:15:33 2021 +0800

    Fix ICE: Don't generate integer mask comparision for 128/256-bits vector
when op_true/op_false are NULL or constm1_rtx/const0_rtx [PR98537]

    avx512vl-pr92686-vpcmp-{1,2,intelasm-1}.c are used to guard code
    generation of integer mask comparison, but for vector comparison to
    vector dest, integer mask comparison is disliked, so delete these
    useless tests.

    gcc/ChangeLog:

            PR target/98537
            * config/i386/i386-expand.c (ix86_expand_sse_cmp): Don't
            generate integer mask comparison for 128/256-bits vector when
            op_true/op_false is NULL_RTX or CONSTM1_RTX/CONST0_RTX. Also
            delete redundant !maskcmp condition.
            (ix86_expand_int_vec_cmp): Ditto but no redundant deletion
            here.
            (ix86_expand_sse_movcc): Delete definition of maskcmp, add the
            condition directly to if (maskcmp), add extra check for
            cmpmode, it should be MODE_INT.
            (ix86_expand_fp_vec_cmp): Pass NULL to ix86_expand_sse_cmp's
            parameters op_true/op_false.
            (ix86_use_mask_cmp_p): New.

    gcc/testsuite/ChangeLog:

            PR target/98537
            * g++.target/i386/avx512bw-pr98537-1.C: New test.
            * g++.target/i386/avx512vl-pr98537-1.C: New test.
            * g++.target/i386/avx512vl-pr98537-2.C: New test.
            * gcc.target/i386/avx512vl-pr88547-1.c: Adjust testcase,
            integer mask comparison should not be generated.
            * gcc.target/i386/avx512vl-pr92686-vpcmp-1.c: Remove.
            * gcc.target/i386/avx512vl-pr92686-vpcmp-2.c: Ditto.
            * gcc.target/i386/avx512vl-pr92686-vpcmp-intelasm-1.c: Ditto.

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