* config/m68hc11/m68hc11-protos.h (m68hc11_page0_symbol_p): Declare.

	* config/m68hc11/m68hc11-protos.h (m68hc11_page0_symbol_p): Declare.

	* config/m68hc11/m68hc11.c (m68hc11_handle_page0_attribute): New.
	(m68hc11_attribute_table): New attribute "page0" to mark a global
	variable as being allocated from within page0 section.
	(m68hc11_encode_label): New function.
	(m68hc11_strip_name_encoding): New function.
	(m68hc11_page0_symbol_p): New function.
	(m68hc11_indirect_p): Accept global variables marked in page0.
	(m68hc11_encode_section_info): Lookup "page0" attribute.

	* config/m68hc11/m68hc11.h (EXTRA_CONSTRAINT): 'R' constraint also
	represents access to page0 variables.

	* config/m68hc11/m68hc11.md ("*logicalsi3_zexthi"): Use gen_rtx_REG.
	("*logicalsi3_silshl16_zext"): Likewise.
	("*ashldi3_const32"): Likewise.
	(peephole2 ashift): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@80038 138bc75d-0d04-0410-961f-82ee72b054a4