Hi,

this is the incompatibility of -fstack-clash-protection with Windows SEH.  Now 
the Windows ports always enable TARGET_STACK_PROBE, which means that the stack 
is always probed (out of line) so -fstack-clash-protection does nothing more.

Tested on x86-64/Windows and Linux, OK for all active branches?


2023-02-15  Eric Botcazou  <ebotcazou@adacore.com>

	* config/i386/i386.cc (ix86_compute_frame_layout): Disable the
	effects of -fstack-clash-protection for TARGET_STACK_PROBE.
	(ix86_expand_prologue): Likewise.

-- 
Eric Botcazou