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* tree-loop-linear.c (try_interchange_loops): Compare memory access
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index 4eb013e..617782a 100644 (file)
@@ -1,3 +1,170 @@
+2008-02-29  Sebastian Pop  <sebastian.pop@amd.com>
+
+       * tree-loop-linear.c (try_interchange_loops): Compare memory access
+       strides against cache sizes.
+
+2008-02-29  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+       * config/sh/sh.c (sh_secondary_reload): Handle loading a float
+       constant to fpul.
+
+2008-02-28  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+       * simplify-rtx.c (simplify_unary_operation_1): Extend the handling
+       of SUBREG_PROMOTED_VAR_P to cope with cases where the extended value
+       is smaller than the original promoted value.
+       (simplify_subreg): If OP is a SUBREG, try to preserve its
+       SUBREG_PROMOTED_VAR_P information.
+
+2008-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
+
+       * tree-ssa-sccvn (vn_ssa_aux_obstack): New obstack.
+       (VN_INFO_GET): Allocate new objects on the obstack.
+       (init_scc_vn): Initialize the obstack.  Use XDELETE instead of free
+       for rpo_numbers_temp, for consistency.
+       (free_scc_vn): Free the obstack.
+
+2008-02-28  Sebastian Pop  <sebastian.pop@amd.com>
+
+       * doc/invoke.texi: Document -ftree-loop-distribution.
+       * tree-loop-distribution.c: New.
+       * tree-pass.h (pass_loop_distribution): New.
+       * graphds.h (struct graph): Add htab_t indices.
+       * timevar.def (TV_TREE_LOOP_DISTRIBUTION): New.
+       * tree-vectorizer.c (rename_variables_in_loop): Extern.
+       (slpeel_tree_duplicate_loop_to_edge_cfg): Init PENDING_STMT to NULL.
+       * tree-vectorizer.h (tree_duplicate_loop_on_edge): Declared.
+       * tree-data-ref.c (debug_data_dependence_relations): New.
+       (dump_data_dependence_relation): Also print data references.
+       (free_data_ref): Extern.
+       (same_access_functions): Moved...
+       (find_vertex_for_stmt): Renamed rdg_vertex_for_stmt.
+       (dump_rdg_vertex, debug_rdg_vertex, dump_rdg_component,
+       debug_rdg_component, dump_rdg, debug_rdg, dot_rdg_1, dot_rdg,
+       struct rdg_vertex_info, rdg_vertex_for_stmt): New.
+       (create_rdg_edge_for_ddr, create_rdg_vertices): Cleaned up.
+       (stmts_from_loop): Skip LABEL_EXPR.
+       (hash_stmt_vertex_info, eq_stmt_vertex_info, hash_stmt_vertex_del): New.
+       (build_rdg): Initialize rdg->indices htab.
+       (free_rdg, stores_from_loop, ref_base_address,
+       rdg_defs_used_in_other_loops_p, have_similar_memory_accesses,
+       have_similar_memory_accesses_1, ref_base_address_1,
+       remove_similar_memory_refs): New.
+       * tree-data-ref.h: Depend on tree-chrec.h.
+       (debug_data_dependence_relations, free_data_ref): Declared.
+       (same_access_functions): ... here.
+       (ddr_is_anti_dependent, ddrs_have_anti_deps, ddr_dependence_level): New.
+       (struct rdg_vertex): Add has_mem_write and has_mem_reads.
+       (RDGV_HAS_MEM_WRITE, RDGV_HAS_MEM_READS, RDG_STMT,
+       RDG_MEM_WRITE_STMT, RDG_MEM_READS_STMT): New.
+       (dump_rdg_vertex, debug_rdg_vertex, dump_rdg_component,
+       debug_rdg_component, dump_rdg, debug_rdg, dot_rdg,
+       rdg_vertex_for_stmt): Declared.
+       (struct rdg_edge): Add level.
+       (RDGE_LEVEL): New.
+       (free_rdg, stores_from_loop, remove_similar_memory_refs,
+       rdg_defs_used_in_other_loops_p, have_similar_memory_accesses): Declared.
+       (rdg_has_similar_memory_accesses): New.
+       * tree-vect-analyze.c: Remove unused static decls.
+       * lambda.h (dependence_level): New.
+       * common.opt (ftree-loop-distribution): New.
+       * tree-flow.h (mark_virtual_ops_in_bb, 
+       slpeel_tree_duplicate_loop_to_edge_cfg,
+       rename_variables_in_loop): Declared.
+       * Makefile.in (TREE_DATA_REF_H): Depend on tree-chrec.h.
+       (OBJS-common): Add tree-loop-distribution.o.
+       (tree-loop-distribution.o): New rule.
+       * tree-cfg.c (mark_virtual_ops_in_bb): New.
+       (mark_virtual_ops_in_region): Use mark_virtual_ops_in_bb.
+       * passes.c (init_optimization_passes): Schedule pass_loop_distribution.
+
+2008-02-28  Joseph Myers  <joseph@codesourcery.com>
+
+       PR target/33963
+       * tree.c (handle_dll_attribute): Disallow TYPE_DECLs for types
+       other than structures and unions.
+
+2008-02-28  Richard Guenther  <rguenther@suse.de>
+
+       Revert:
+       2008-02-26  Richard Guenther  <rguenther@suse.de>
+
+       * tree-flow.h (uid_decl_map_hash, uid_decl_map_eq): Move ...
+       * tree.h (uid_decl_map_hash, uid_decl_map_eq): ... here.
+       (lookup_decl_from_uid): Declare.
+       (remove_decl_from_map): Likewise.
+       * tree-ssa.c (uid_decl_map_eq, uid_decl_map_hash): Move ...
+       * tree.c (uid_decl_map_eq, uid_decl_map_hash): ... here.
+       (decl_for_uid_map): New global hashtable mapping DECL_UID
+       to the decl tree.
+       (init_ttree): Allocate it.
+       (insert_decl_to_uid_decl_map): New helper function.
+       (make_node_stat): Insert new decls into the map.
+       (copy_node_stat): Likewise.
+       (lookup_decl_from_uid): New function.
+       (remove_decl_from_map): Likewise.
+       (print_decl_for_uid_map_statistics): New helper.
+       (dump_tree_statistics): Call it.
+
+       * tree-flow.h (struct gimple_df): Make referenced_vars a bitmap.
+       (referenced_var_iterator): Adjust.
+       (FOR_EACH_REFERENCED_VAR): Adjust.
+       (FOR_EACH_REFERENCED_VAR_IN_BITMAP): New iterator.
+       (num_referenced_vars): Adjust.
+       * tree-flow-inline.h (gimple_referenced_vars): Adjust.
+       (first_referenced_var): Remove.
+       (end_referenced_vars_p): Likewise.
+       (next_referenced_var): Likewise.
+       (referenced_var_iterator_set): New helper function.
+       * tree-dfa.c (referenced_var_lookup): Adjust.
+       (referenced_var_check_and_insert): Likewise.
+       (remove_referenced_var): Likewise.
+       * tree-ssa.c (verify_flow_insensitive_alias_info): Use
+       FOR_EACH_REFERENCED_VAR_IN_BITMAP.
+       (verify_call_clobbering): Likewise.
+       (verify_memory_partitions): Likewise.
+       (init_tree_ssa): Allocate bitmap instead of hashtable for
+       referenced_vars.
+       (delete_tree_ssa): Adjust.
+       * tree-ssa-alias.c (mark_aliases_call_clobbered): Use
+       FOR_EACH_REFERENCED_VAR_IN_BITMAP.
+       (compute_tag_properties): Likewise.
+       (set_initial_properties): Likewise.
+       (find_partition_for): Likewise.
+       (update_reference_counts): Likewise.
+       (dump_may_aliases_for): Likewise.
+       * tree-ssa-operands.c (add_virtual_operand): Likewise.
+       (add_call_clobber_ops): Likewise.
+       (add_call_read_ops): Likewise.
+       (get_asm_expr_operands): Likewise.
+       * tree-into-ssa.c (dump_decl_set): Likewise.
+       (update_ssa): Likewise.
+       * tree-sra.c (scan_function): Likewise.
+       (decide_instantiations): Likewise.
+       (scalarize_parms): Likewise.
+       * tree-ssa-alias-warnings.c (build_reference_table): Likewise.
+       (dsa_named_for): Likewise.
+       * tree-ssa-structalias.c (update_alias_info): Likewise.
+       (merge_smts_into): Likewise.
+
+2008-02-27  David Daney  <ddaney@avtrex.com>
+
+       PR target/34409
+       * config/mips/iris.h (MIPS_DEBUGGING_INFO): Define.
+       * config/mips/openbsd.h (MIPS_DEBUGGING_INFO): Same.
+       * config/mips/sde.h (MIPS_DEBUGGING_INFO): Remove undef.
+       * config/mips/vxworks.h (MIPS_DEBUGGING_INFO): Same.
+       * config/mips/mips.h (MIPS_DEBUGGING_INFO): Remove define.
+
+2008-02-27  Uros Bizjak  <ubizjak@gmail.com>
+
+       PR target/25477
+       * config/darwin-ppc-ldouble-patch.def (BUILT_IN_NANL): Add.
+       (BUILT_IN_NEXTTOWARD): Remove.
+       (BUILT_IN_NEXTTOWARDF): Ditto.
+       * config/darwin.c (darwin_patch_builtin): Use ACONCAT instead of
+       alloca/strcpy/strcat.  Remove commented-out code.  Fix whitespace.
+
 2008-02-27  Tom Tromey  <tromey@redhat.com>
 
        * tree-dump.c (dequeue_and_dump) <FUNCTION_DECL>: Check
 
 2008-02-27  Richard Guenther  <rguenther@suse.de>
 
-       PR middle-end/25290
+       PR middle-end/35390
        * fold-const.c (fold_unary): Return the correct argument,
        converted to the result type.
 
 
 2008-02-25  Jan Beulich  <jbeulich@novell.com>
 
-       * Makefile.in: Also prefix uses of crt0.o and mcrt0.o with
-       $(T).
+       * Makefile.in: Also prefix uses of crt0.o and mcrt0.o with $(T).
        * config/i386/netware-libgcc.exp: Add __bswap?i2,
        __emultls_get_address, __emultls_register_common,
        __floatundi?f, and _Unwind_GetIPInfo.