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Subject: [Bug target/97140] [10/11 Regression] ICE in error: unable to
 generate reloads for since r10-400-gecfdb16c54ad06ac
Date: Mon, 02 Nov 2020 21:59:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97140

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:

https://gcc.gnu.org/g:6058b874ef98af1104a5cb4618e1f3bfa7e3761c

commit r11-4632-g6058b874ef98af1104a5cb4618e1f3bfa7e3761c
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Sep 21 05:33:46 2020 -0700

    x86: Also require MMX for __builtin_ia32_maskmovq

    MMX emulation with SEE is implemented at MMX intrinsic level, not at MMX
    instruction level.  _mm_maskmove_si64 intrinsic for "MASKMOVQ mm1, mm2"
    is emulated with __builtin_ia32_maskmovdqu.  Since SSE "MASKMOVQ mm1, m=
m2"
    builtin function, __builtin_ia32_maskmovq, can't be emulated with XMM
    registers, make __builtin_ia32_maskmovq also require MMX instead of SSE
    only.

    gcc/

            PR target/97140
            * config/i386/i386-expand.c (ix86_expand_builtin): Require MMX
            for __builtin_ia32_maskmovq.

    gcc/testsuite/

            PR target/97140
            * gcc.target/i386/pr97140.c: New test.=