* alpha.c (alpha_sr_alias_set): New variable.
(override_options): Set it.
(alpha_expand_prologue, alpha_expand_epilogue): Use it.
(mode_mask_operand): Fix signed-unsigned comparision warning.
(alpha_expand_block_move): Likewise.
(print_operand): Likewise.
(get_aligned_mem): Use change_address.
(alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
(alphaev4_insn_pipe, alphaev4_next_group): New functions.
(alphaev4_next_nop, alphaev5_next_nop): New functions.
(alpha_align_insns): Remade from old alphaev5_align_insns
to handle multiple processors.
(alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
* output.h (label_to_alignment): Prototype.