https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116497
--- Comment #13 from andi at firstfloor dot org ---
> --- Comment #11 from H.J. Lu <hjl.tools at gmail dot com> ---
> Please provide a small testcase to show the issue.
You mean a test case for no_caller_saved_registers failing with SSE?
It's just
__attribute__((no_caller_saved_registers)) void foo(void) {}
(if you compile without any special options, or use the
target dance as seen in the PHP github link above)
Or a test case for the intended register allocation benefits?
That's more complicated and won't be small.
