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Subject: [Bug target/108120] [11/12 Regression] ICE: in extract_insn, at
 recog.cc:2791 (on ARM with -mfpu=neon -freciprocal-math -O3)
Date: Fri, 23 Feb 2024 13:54:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108120

--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Richard Earnshaw
<rearnsha@gcc.gnu.org>:

https://gcc.gnu.org/g:98032b3e320a5b63309d6a843f6e97fb0506953a

commit r11-11251-g98032b3e320a5b63309d6a843f6e97fb0506953a
Author: Richard Earnshaw <rearnsha@arm.com>
Date:   Thu Feb 22 16:47:20 2024 +0000

    arm: fix ICE with vectorized reciprocal division [PR108120]

    The expand pattern for reciprocal division was enabled for all math
    optimization modes, but the patterns it was generating were not
    enabled unless -funsafe-math-optimizations were enabled, this leads to
    an ICE when the pattern we generate cannot be recognized.

    Fixed by only enabling vector division when doing unsafe math.

    gcc:

            PR target/108120
            * config/arm/neon.md (div<VCVTF:mode>3): Rename from div<mode>3.
            Gate with ARM_HAVE_NEON_<MODE>_ARITH.

    gcc/testsuite:
            PR target/108120
            * gcc.target/arm/neon-recip-div-1.c: New file.

    (cherry picked from commit 016c4eed368b80a97101f6156ed99e4c5474fbb7)=