[Bug tree-optimization/116348] [15 regression] ICE when building gavl-1.4.0 with -O3 -march=znver4 since r15-2791-g2083389a18d366

[xry111 at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116348

--- Comment #8 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Sam James from comment #7)
> That test has been ping-ponging for me for a while. I suspect it's not
> related.

Indeed, this test seems flaky.  I ran the test manually several times and
sometimes it looped infinitely, but sometimes not.

Is there an existing PR for it?

I'll test the change with my LoongArch change too but it'll take some time.