[Bug target/117357] ICE: in extract_insn, at recog.cc:2882 (unrecognizable insn: UNSPEC_RSQRT) with -mfpmath=387 and __builtin_ia32_rsqrtf()

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117357

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Uros Bizjak <uros@gcc.gnu.org>:

https://gcc.gnu.org/g:540c0c7c424a43c1d99dd22f6db020cc0cd6eaea

commit r12-10822-g540c0c7c424a43c1d99dd22f6db020cc0cd6eaea
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Mon Nov 18 22:38:46 2024 +0100

    i386: Enable *rsqrtsf2_sse without TARGET_SSE_MATH [PR117357]

    __builtin_ia32_rsqrtsf2 expander generates UNSPEC_RSQRT insn pattern
    also when TARGET_SSE_MATH is not set.  Enable *rsqrtsf2_sse without
    TARGET_SSE_MATH to avoid ICE with unrecognizable insn.

            PR target/117357

    gcc/ChangeLog:

            * config/i386/i386.md (*rsqrtsf2_sse):
            Also enable for !TARGET_SSE_MATH.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr117357.c: New test.

    (cherry picked from commit 344356f781ddb7bf0abb11edf9bdd13f6802dea8)