+2010-04-28 Eric Botcazou <ebotcazou@adacore.com>
+
+ Uniquization of constants at the Tree level
+ * tree.h (DECL_IN_CONSTANT_POOL): New macro
+ (tree_decl_with_vis): Add in_constant_pool bit, move shadowed_for_var_p
+ bit to the end.
+ (tree_output_constant_def): Declare.
+ * gimplify.c (gimplify_init_constructor): When using block copy,
+ uniquize the constant constructor on the RHS.
+ * lto-streamer-in.c (unpack_ts_decl_with_vis_value_fields): Deal
+ with DECL_IN_CONSTANT_POOL flag.
+ * lto-streamer-out.c (pack_ts_decl_with_vis_value_fields): Likewise.
+ * varasm.c (make_decl_rtl): Deal with variables belonging to the
+ global constant pool.
+ (assemble_variable): Deal with symbols belonging to the tree constant
+ pool.
+ (get_constant_section): Add ALIGN parameter and simplify.
+ (build_constant_desc): Build a VAR_DECL and attach it to the symbol.
+ (assemble_constant_contents): Use the expression of the VAR_DECL.
+ (output_constant_def_contents): Use the alignment of the VAR_DECL.
+ (tree_output_constant_def): New global function.
+ (mark_constant): Use the expression of the VAR_DECL.
+ (place_block_symbol): Use the alignment of the VAR_DECL and the size
+ of its expression.
+ (output_object_block): Likewise and assemble the expression.
+
+2010-04-28 Eric Botcazou <ebotcazou@adacore.com>
+
+ * lto-streamer.c [LTO_STREAMER_DEBUG] (tree_htab, tree_hash_entry,
+ hash_tree, eq_tree): New tree hash table.
+ (lto_streamer_init) [LTO_STREAMER_DEBUG]: Initialize it.
+ [LTO_STREAMER_DEBUG] (lto_orig_address_map, lto_orig_address_get,
+ lto_orig_address_remove): Reimplement.
+
+2010-04-28 Xinliang David Li <davidxl@google.com>
+
+ PR c/42643
+ * tree-ssa-uninit.c (can_skip_redundant_opnd): New function.
+ (compute_uninit_opnds_pos): New function.
+ (is_non_loop_exit_postdominating): New function.
+ (compute_control_dep_chain): New function.
+ (find_pdom): New function.
+ (convert_control_dep_chain_into_preds): New function.
+ (find_predicates): New function.
+ (find_control_equiv_block): New function.
+ (collect_phi_def_edges): New function.
+ (find_def_preds): New function.
+ (find_dom): New function.
+ (dump_predicates): New function.
+ (get_cmp_code): New function.
+ (is_value_included_in): New function.
+ (find_matching_predicate_in_rest_chains): New function.
+ (use_pred_not_overlap_with_undef_path_pred): New function.
+ (is_use_properly_guarded): New function.
+ (normalize_cond_1): New function.
+ (is_and_or_or): New function.
+ (normalize_cond): New function.
+ (is_gcond_subset_of): New function.
+ (is_subset_of_any): New function.
+ (is_or_set_subset_of): New function.
+ (is_and_set_subset_of): New function.
+ (is_norm_cond_subset_of): New function.
+ (is_pred_expr_subset_of): New function.
+ (is_pred_chain_subset_of): New function.
+ (is_included_in): New function.
+ (is_superset_of): New function.
+ (find_uninit_use): New function.
+ (warn_uninitialized_phi): New function.
+ (compute_possibly_undefined_names): New function.
+ (ssa_undefined_value_p): New function.
+ (execute_late_warn_uninitialized): New function.
+ * tree-ssa.c (ssa_undefined_value_p): Removed.
+ (warn_uninit): Changed to extern.
+ (warn_uninitialized_phi): Removed.
+ (warn_uninitialized_vars): Changed to extern.
+ (execute_late_warn_uninitialized): Removed
+ * tree-flow.h: Add new prototypes.
+ * timevar.def: Add new time variable.
+ * Makefile.in: Add new build file.
+
2010-04-28 Uros Bizjak <ubizjak@gmail.com>
* config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use gnu_unique_object
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