> 2017-01-19 Jakub Jelinek
>
> PR target/79127
> * acinclude.m4 (LIBGFOR_CHECK_AVX512F): Ensure the test clobbers
> some zmm16+ registers to verify they are handled by unwind info
> properly if needed.
> * configure: Regenerated.
OK to commit, with an additional c
Hi!
Apparently the Windows SEH has problems with the [xyz]mm16 and later
registers that were added with AVX512F (usable in 64-bit code only),
if any of the zmm16 to zmm31 registers are used in some function compiled
with avx512f or later, GCC emits .seh_savexmm %xmm16, ... directive or
similar and
