+2002-02-19 Aldy Hernandez <aldyh@redhat.com>
+
+ * config/i386/i386.md ("mmx_uavgv8qi3"): Use const_vector.
+ ("mmx_uavgv4hi3"): Same.
+ ("pmulhrwv4hi3"): Same.
+
+ * tree-inline.c (walk_tree): Handle vectors.
+
+ * c-common.c (constant_expression_warning): Handle vectors.
+ (overflow_warning): Same.
+
+ * sched-deps.c (sched_analyze_2): Handle vectors.
+
+ * rtlanal.c (rtx_unstable_p): Handle vectors.
+ (rtx_varies_p): Same.
+ (count_occurrences): Same.
+ (regs_set_between_p): Same.
+ (modified_between_p): Same.
+ (modified_in_p): Same.
+ (volatile_insn_p): Same.
+ (volatile_refs_p): Same.
+ (side_effects_p): Same.
+ (may_trap_p): Same.
+ (inequality_comparisons_p): Same.
+ (replace_regs): Same.
+ (computed_jump_p_1): Same.
+
+ * rtl.c (DEF_MACHMODE): Change all definitions to accept 8th
+ argument.
+ (inner_mode_array): New.
+ (copy_rtx): Handle vectors.
+ (copy_most_rtx): Same.
+ (rtx_equal_p): Same.
+ (get_mode_alignment): Adjust for vectors.
+
+ * resource.c (mark_referenced_resources): Handle vectors.
+ (mark_set_resources): Same.
+
+ * reload1.c (eliminate_regs): Handle vectors.
+ (elimination_effects): Same.
+ (scan_paradoxical_subregs): Same.
+
+ * reload.c (subst_reg_equivs): Handle vectors.
+
+ * regrename.c (scan_rtx): Handle vectors.
+
+ * regclass.c (reg_scan_mark_refs): Handle vectors.
+
+ * recog.c (find_single_use_1): Handle vectors.
+
+ * local-alloc.c (equiv_init_varies_p): Handle vectors.
+ (contains_replace_regs): Same.
+ (memref_referenced_p): Same.
+
+ * integrate.c (copy_rtx_and_substitute): Handle vectors.
+ (subst_constants): Same.
+
+ * genattrtab.c (attr_copy_rtx): Handle vectors.
+ (encode_units_mask): Same.
+ (clear_struct_flag): Same.
+ (count_sub_rtxs): Same.
+
+ * gcse.c (want_to_gcse_p): Handle vectors.
+ (oprs_unchanged_p): Same.
+ (hash_expr_1): Same.
+ (oprs_not_set_p): Same.
+ (expr_killed_p): Same.
+ (compute_transp): Same.
+ (store_ops_ok): Same.
+
+ * function.c (purge_addressof_1): Do not allow paradoxical subregs
+ of vectors.
+ (fixup_var_refs_1): Same.
+ (instantiate_virtual_regs_1): Same.
+
+ * fold-const.c (operand_equal_p): Handle vectors.
+ (fold): Same.
+ (rtl_expr_nonnegative_p): Same.
+
+ * flow.c (mark_used_regs): Handle vectors.
+
+ * df.c (df_uses_record): Handle vectors.
+
+ * cselib.c (cselib_subst_to_values): Handle vectors.
+ (cselib_mem_conflict_p): Same.
+ (hash_rtx): Same.
+
+ * cse.c (canon_reg): Handle vectors.
+ (fold_rt): Same.
+ (cse_process_notes): Same.
+ (count_reg_usage): Same.
+ (canon_hash): Same.
+
+ * alias.c (nonlocal_mentioned_p): Add case for CONST_VECTOR.
+
+ * combine.c (mark_used_regs_combine): Add case for CONST_VECTOR.
+
+ * emit-rtl.c (init_emit_once): Generate const0_rtx for vectors.
+ (gen_rtx): Handle CONST_VECTOR.
+ (gen_const_vector_0): New.
+ (copy_rtx_if_shared): CONST_VECTORs can be shared.
+ (reset_used_flags): Same.
+ (copy_insn_1): Same.
+ (initializer_constant_valid_p): Handle VECTOR_CST.
+
+ * doc/c-tree.texi (Expression trees): Document VECTOR_CST.
+
+ * doc/rtl.texi (Constants): Document const_vector.
+ (CONST0_RTX): Update for vectors.
+ (RTL sharing): Same.
+
+ * print-tree.c (print_node): Add case for VECTOR_CST.
+
+ * tree.h (TREE_VECTOR_CST_ELTS): New.
+ (struct tree_vector): New.
+ (union tree_node): Add vector node.
+ (build_vector): Add prototype.
+
+ * tree.def (VECTOR_CST): New.
+
+ * tree.c (build_vector): New.
+
+ * expmed.c (make_tree): Handle CONST_VECTOR.
+
+ * rtl.h (CONSTANT_P): CONST_VECTORs are constants too.
+ (CONST_VECTOR_ELT): New.
+ (CONST_VECTOR_NUNITS): New.
+
+ * machmode.h (GET_MODE_INNER): New.
+ (DEF_MACHMODE): Accept 8th arg.
+
+ * machmode.def: Add 8th argument for vector inner mode.
+ Add inner vector modes for vectors.
+
+ * rtl.def (VEC_CONST): Remove.
+ (CONST_VECTOR): New.
+
+ * expr.c (clear_storage): Allow vectors.
+ (is_zeros_p): Handle VECTOR_CST.
+
+ * varasm.c (output_constant_pool): Handle vectors.
+ (rtx_const): Add veclo and vechi fields.
+ (kind): Add RTX_VECTOR.
+ (decode_rtx_const): Add case for vector.
+
+ * config/rs6000/rs6000-protos.h: Add zero_constant.
+
+ * config/rs6000/rs6000.c (rs6000_emit_move): Handle vector
+ constants. Force easy vector constants into memory.
+ (easy_vector_constant): New.
+ (emit_easy_vector_constant): New.
+ (rs6000_legitimize_reload_address): Do not generate bad reloads on
+ darwin.
+
+ * config/rs6000/rs6000.md ("altivec_lvx"): Reflect what
+ instruction does.
+ ("altivec_lvxl"): Same.
+ (altivec_lvebx): Same.
+ (altivec_lvehx): Same.
+ (altivec_lvewx): Same.
+ ("*movv4si_const0"): New.
+ ("*movv4sf_const0"): New.
+ ("*movv8hi_const0"): New.
+ ("*movv16qi_const0"): New.
+
2002-02-18 Kazu Hirata <kazu@hxi.com>
* config/h8300/h8300.c (notice_update_cc): Use