* emit-rtl.c (set_mem_attributes): Set RTX_UNCHANGINGP_P if T is a
constant expression.
(set_mem_decl): New function.
* expr.h (set_mem_decl): New declaration.
* final.c (get_decl_from_op): Don't use ORIGINAL_REGNO if not pseudo.
(output_asm_operand_names): Add tab.
* reload1.c (alter_reg): Set decl of MEM from REG_DECL.
From-SVN: r46733
