https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110622
--- Comment #4 from Mathieu Malaterre <malat at debian dot org> --- Here is my current state of work: * https://github.com/malaterre/highway/commit/771ca57d2d29b48f91beae033f6854f9b2dfb730 I am open to suggestion to further reduce the test case, as I am not familiar with those sort of symptoms and how to drive c-reduce in this case. Thanks all