i386-protos.h (ix86_split_stack_boundary): New prototype.

i386-protos.h (ix86_split_stack_boundary): New prototype.

	* config/i386/i386-protos.h (ix86_split_stack_boundary): New prototype.
	* config/i386/i386.c (ix86_split_stack_boundary): New function.
	(ix86_xpand_split_stack_prologue): Call ix86_split_stack_boundary.
	(ix86_legitimate_address_p) <case UNSPEC_STACK_CHECK>: Remove.
	(i386_asm_output_addr_const_extra) <case UNSPEC_STACK_CHECK>: Ditto.
	(optput_pic_addr_const): Remove UNSPEC_STACK_CHECK handling.
	* config/i386/i386.md (unspec): Remove UNSPEC_STACK_CHECK.
	(split_stack_space_check): Call ix86_split_stack_boundary.

From-SVN: r251031