> Minor nit.  Since this is used in an unspec_volatile, the name should be
> UNSPECV_ and defined in the unspecv enum.

Ouch.  It turns out that the ARM implementation has it too so I have installed 
the attached patchlet on top of the others after minimal retesting.


	PR middle-end/65958
	* config/arm/unspecs.md (unspec): Remove UNSPEC_PROBE_STACK_RANGE.
	(unspecv): Add VUNSPEC_PROBE_STACK_RANGE.
	* config/arm/arm.md (probe_stack_range): Adjust.
	* config/aarch64/aarch64.md (unspec): Remove UNSPEC_PROBE_STACK_RANGE.
	(unspecv): Add UNSPECV_PROBE_STACK_RANGE.
	(probe_stack_range_<PTR:mode>): Adjust.

-- 
Eric Botcazou