[Bug rtl-optimization/106751] [10 Regression] internal compiler error: in purge_dead_edges with inline-asm goto

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106751

--- Comment #18 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jakub Jelinek
<jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:c88f917d2aa1c2ac065fbc0a10298f5551f392b6

commit r10-11348-gc88f917d2aa1c2ac065fbc0a10298f5551f392b6
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Fri Dec 16 10:19:22 2022 +0100

    loop-invariant: Split preheader edge if the preheader bb ends with jump
[PR106751]

    The RTL loop passes only request simple preheaders, but don't require
    fallthru preheaders, while move_invariant_reg apparently assumes the
    latter, that it can just append instruction(s) to the end of the preheader
    basic block.

    The following patch fixes that by splitting the preheader edge if
    the preheader bb ends with a JUMP_INSN (asm goto in this case).
    Without that we get control flow in the middle of a bb.

    2022-12-16  Jakub Jelinek  <jakub@redhat.com>

            PR rtl-optimization/106751
            * loop-invariant.c (move_invariant_reg): If preheader bb ends
            with a JUMP_INSN, split the preheader edge and emit invariants
            into the new preheader basic block.

            * gcc.c-torture/compile/pr106751.c: New test.

    (cherry picked from commit ddcaa60983b50378bde1b7e327086fe0ce101795)