[Bug target/54412] Request for 32-byte stack alignment with -mavx on Windows

[rcopley at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54412

--- Comment #6 from R Copley <rcopley at gmail dot com> ---
As I mentioned in the description, this request was indeed related to that bug.
The test-case no longer crashes with recent MinGW-W64 toolchains (GCC 4.9.1).