> The middle-end parts are OK.  This is OK if it is OK with the x86
> backend maintainers.

It just occured to me that, with the addition of the probe_stack insn, the 
STACK_CHECK_PROBE_LOAD macro has become superfluous since you now can define 
your own stack probing insn.  Moreover no port defines it.  So I've installed 
as obvious the attached patch that gets rid of it.


2009-12-13  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/tm.texi (STACK_CHECK_PROBE_LOAD): Delete.
	* expr.h (STACK_CHECK_PROBE_LOAD): Likewise.
	* explow.c (emit_stack_probe): Do not test STACK_CHECK_PROBE_LOAD.
	* system.h (STACK_CHECK_PROBE_LOAD): Poison.


-- 
Eric Botcazou