re PR target/68018 (ICE: in ix86_compute_frame_layout, at...

re PR target/68018 (ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign)

	PR target/68018
	* config/i386/i386.c (ix86_compute_frame_layout): Realign the stack
	for 64-bit MS_ABI targets also when default incoming stack boundary
	is overriden.

testsuite/ChangeLog:

	PR target/68018
	* gcc.target/i386/pr68018.c: New test.

From-SVN: r229120