+2007-02-03 Ian Lance Taylor <iant@google.com>
+
+ * lower-subreg.c (simple_move_operand): New static function,
+ broken out of simple_move. Reject LABEL_REF, SYMBOL_REF, and HIGH
+ operands.
+ (simple_move): Call simple_move_operand.
+ (find_decomposable_subregs): Add special handling of MEMs.
+ (can_decompose_p): Rename from cannot_decompose_p. Reverse
+ meaning of return value. If we see a hard register, test whether
+ it can store a word_mode value. Change all callers.
+
+2007-02-03 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
+
+ * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
+ ftrapv insns and expanders.
+ (subdi3): Change define_expand operand 1 to arith11_operand, and
+ operand 2 to reg_or_0_operand. Change constraints of 64-bit insn
+ pattern to handle reg_or_0 operands. Revise 32-bit insn pattern to
+ handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
+ respectively.
+
+ PR middle-end/30174
+ * varasm.c (notice_global_symbol): Treat global objects as weak when
+ flag_shlib is true.
+
+2007-02-03 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * emit-rtl.c (dconstpi): Delete.
+ (dconstsqrt2): New.
+ (init_emit_once): Delete dconstpi and init dconstsqrt2.
+ * real.h (dconstpi): Delete.
+ (dconstsqrt2): New.
+ * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
+ (fold_builtin_hypot): Likewise.
+
+2007-02-03 Tom Tromey <tromey@redhat.com>
+
+ PR driver/30246
+ * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
+ -gcoff3, -gxcoff3, -gvms3 implies -dD.
+
+2007-02-03 Kazu Hirata <kazu@codesourcery.com>
+
+ * c-decl.c, config/avr/avr.c, config/avr/avr.h,
+ config/m68k/m68k.c, config/m68k/netbsd-elf.h,
+ config/mn10300/mn10300.c, config/pdp11/pdp11.h,
+ config/rs6000/cell.md, config/rs6000/darwin.h,
+ config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
+ config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
+ jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
+ tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
+ typos. Follow spelling conventions.
+ * doc/invoke.texi: Follow spelling conventions.
+
+2007-02-03 Roger Sayle <roger@eyesopen.com>
+
+ * simplify-rtx.c (simplify_relational_operation_1): Implement some
+ canonicalization transformations that attempt to simplify integer
+ constant comparisons to become comparisons against zero.
+
+2007-02-03 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
+ fabs(x)*sqrt(2).
+ * fold-const.c (fold_binary): Fix comment typos. Fold complex
+ (x,0)-(0,y) into (x,-y). Likewise (0,y)-(x,0) into (-x,y).
+
+2007-02-02 Mike Stump <mrs@apple.com>
+
+ * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
+ * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
+ (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
+ generate a branch island.
+
+2007-02-02 Bob Wilson <bob.wilson@acm.org>
+
+ * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
+ (xtensa_legitimate_address_p): New.
+ (xtensa_legitimize_address): New.
+ (xtensa_output_addr_const_extra): New.
+ * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
+ (BASE_REG_P): New.
+ (REG_OK_FOR_BASE_P): Use BASE_REG_P.
+ (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
+ (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
+ (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
+ * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
+ (xtensa_legitimize_address): New.
+ (xtensa_output_addr_const_extra): New.
+
+2007-02-02 Steve Ellcey <sje@cup.hp.com>
+
+ * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.
+
+2007-02-02 Ian Lance Taylor <iant@google.com>
+
+ * expmed.c (expand_divmod): Add comment.
+
+2007-02-02 Kazu Hirata <kazu@codesourcery.com>
+
+ * emit-rtl.c (renumber_insns): Remove.
+ * flags.h: Remove the extern for flag_renumber_insns.
+ * rtl.h: Remove the prototype for renumber_insns.
+ * toplev.c (flag_renumber_insns): Remove.
+
+2007-02-02 Hui-May Chang <hm.chang@apple.com>
+
+ Revert for x86 darwin:
+ 2005-06-19 Uros Bizjak <uros@kss-loka.si>
+
+ * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
+ code before the following patch under TARGET_MACHO.
+ (ix86_function_value_regno_p): Likewise.
+
+2007-02-02 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * fold-const.c (negate_expr_p, fold_negate_expr): Handle
+ COMPLEX_EXPR.
+
+2007-02-02 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
+
+ PR target/29682
+ * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
+ general or fp registers. Add comments.
+ * config/ia64/ia64.md (reg_pred_prefix): Add comment.
+
+2007-02-02 Paolo Bonzini <bonzini@gnu.org>
+
+ * pointer-set.c (insert_aux): Only return insertion slot.
+ (pointer_set_insert): Adjust.
+ (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
+ pointer_map_destroy, pointer_map_insert, pointer_map_contains,
+ pointer_map_traverse): New.
+ * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
+ pointer_map_create, pointer_map_destroy, pointer_map_insert,
+ pointer_map_contains, pointer_map_traverse): Declare.
+
+2007-02-02 Jakub Jelinek <jakub@redhat.com>
+
+ PR middle-end/30473
+ * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
+ sprintf (str, "%s"). Do not optimize sprintf (str, "nopercent", p++).
+
+2007-02-02 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
+
+ * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
+
+ (struct _dep): New type.
+ (dep_t): New typedef.
+ (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
+ (DEP_STATUS): New access macro. The macro with the same name was
+ renamed to DEP_LINK_STATUS.
+ (dep_init): Declare function
+
+ (struct _dep_link): New type.
+ (dep_link_t): New typedef.
+ (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
+ (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
+ (DEP_LINK_STATUS): New macro.
+ (debug_dep_links): New debug function.
+
+ (struct _deps_list): New type.
+ (deps_list_t): New typedef.
+ (DEPS_LIST_FIRST): New access macro.
+ (FOR_EACH_DEP_LINK): New cycle macro.
+ (create_deps_list, free_deps_list, delete_deps_list): Declare
+ functions.
+ (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
+ (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
+ (copy_deps_list_change_con): Ditto.
+
+ (move_dep_link): Declare function.
+
+ (struct _dep_node): New type.
+ (dep_node_t): New typedef.
+ (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
+
+ (struct haifa_insn_data.back_deps): New field to hold backward
+ dependencies of the insn.
+ (struct haifa_insn_data.depend): Rename to forw_deps. Change its type
+ to deps_list_t.
+ (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
+ Change its type to deps_list_t.
+ (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
+ (INSN_DEPEND): Rename to INSN_FORW_DEPS.
+ (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
+
+ (INSN_COST): Move to haifa-sched.c. Use insn_cost () instead.
+
+ (DEP_STATUS): Rename to DEP_LINK_STATUS. Fix typo in the comment.
+
+ (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
+ all callers.
+ (dep_cost): Declare.
+
+ * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
+ (ds_to_dk, dk_to_ds): New functions.
+
+ (init_dep_1): New static function.
+ (init_dep): New function.
+ (copy_dep): New static function.
+
+ (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
+ functions.
+ (detach_dep_link): New static function.
+ (move_dep_link): New function.
+
+ (dep_links_consistent_p, dump_dep_links): New static functions.
+ (debug_dep_links): New debugging function.
+
+ (deps_obstack, dl_obstack, dn_obstack): New static variables.
+
+ (alloc_deps_list, init_deps_list): New static functions.
+ (create_deps_list): New function.
+ (clear_deps_list): New static function.
+ (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
+ (deps_list_consistent_p, dump_deps_list): New static functions.
+ (debug_deps_list): New function.
+ (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
+ functions.
+ (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
+
+ (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
+ use new scheduler dependencies lists.
+ (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
+ (sched_analyze): Ditto. Initialize dependencies lists.
+ (add_forw_dep, compute_forward_dependences): Update to use new
+ scheduler dependencies lists.
+
+ (init_dependency_caches): Init deps_obstack.
+ (free_dependency_caches): Free deps_obstack.
+
+ (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
+ new scheduler dependencies lists.
+ (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
+ (add_back_forw_dep, delete_back_forw_dep): Ditto.
+
+ * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
+ Update to use new scheduler dependencies lists.
+ (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
+ (debug_dependencies): Ditto.
+ (schedule_region): Update comments.
+
+ * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
+ scheduler dependencies lists.
+ (schedule_ebb): Update comments.
+
+ * rtl.def (DEPS_LIST): Remove.
+
+ * lists.c (unused_deps_list): Remove.
+ (free_list): Update assertions.
+
+ (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
+ (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
+
+ * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
+ (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
+
+ * haifa-sched.c (comments): Update.
+ (insn_cost1): Remove. Inline the code into insn_cost ().
+ (insn_cost): Update to use new scheduler dependencies lists. Move
+ processing of the dependency cost to dep_cost ().
+ (dep_cost): New function. Use it instead of insn_cost () when
+ evaluating cost of the dependency. Use compatible interface to
+ interact with the target.
+ (priority): Update to use new scheduler dependencies lists.
+ (rank_for_schedule): Ditto. Optimize heuristic that prefers the insn
+ with greater number of insns that depend on the insn.
+ (schedule_insn): Update to use new scheduler dependencies lists. Add
+ code to free backward dependencies lists. Inline and optimize code
+ from resolve_dep () - see PR28071.
+ (ok_for_early_queue_removal): Update to use new scheduler dependencies
+ lists. Update call to targetm.sched.is_costly_dependence hook.
+
+ (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
+ scheduler dependencies lists.
+
+ (resolve_dep): Remove. Move the logic to schedule_insn ().
+ (init_h_i_d): Initialize dependencies lists.
+
+ (process_insn_depend_be_in_spec): Rename to
+ process_insn_forw_deps_be_in_spec. Update to use new scheduler
+ dependencies lists.
+ (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
+ Update to use new scheduler dependencies lists.
+ (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
+
+ * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
+ new scheduler dependencies lists.
+ (build_intra_loop_deps): Ditto.
+
+ * target.h (struct _dep): Declare to use in
+ gcc_target.sched.is_costly_dependence.
+ (struct gcc_target.sched.adjust_cost): Fix typo.
+ (struct gcc_target.sched.is_costly_dependence): Change signature to use
+ single dep_t parameter instead of an equivalent triad.
+ (struct gcc_target.sched.adjust_cost_2): Remove.
+
+ * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
+
+ * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
+
+ * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
+ documentation.
+ (TARGET_SCHED_ADJUST_COST_2): Remove documentation.
+
+ * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
+ (REG_DEP_TRUE): Document.
+
+ * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
+ Change signature to correspond to the targetm.sched.adjust_cost hook.
+ Update use in TARGET_SCHED_ADJUST_COST_2.
+ (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
+ (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
+ new scheduler dependencies lists.
+ (ia64_gen_check): Ditto.
+
+ * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
+ dependencies lists.
+
+ * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
+ signature to correspond to the targetm.sched.is_costly_dependence hook.
+ (is_costly_group): Update to use new scheduler dependencies lists.
+
+ * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
+ instead of INSN_COST () macro.
+
+2007-02-01 Ian Lance Taylor <iant@google.com>
+
+ * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.
+
+2007-02-01 Guy Martin <gmsoft@gentoo.org>
+
+ * pa.md (tp_load): Correct mfctl instruction syntax.
+
+2007-02-01 Geoffrey Keating <geoffk@apple.com>
+
+ * config/rs6000/rs6000.c (rs6000_stack_info): Correct
+ altivec_padding_size calculation on AIX. Improve comment, add
+ assert to verify that it's right.
+
+ * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
+ 64-bit.
+
+2007-2-01 Seongbae Park <seongbae.park@gmail.com>
+
+ PR inline-asm/28686
+ * global.c (global_alloc): Add mising initialization of
+ ELIMINABLE_REGSET.
+
+2007-02-01 Roger Sayle <roger@eyesopen.com>
+
+ * alias.c (init_alias_analysis): Correct whitespace.
+ * bb-reorder.c (fix_edges_for_rarely_executed_code,
+ partition_hot_cold_basic_blocks): Likewise.
+ * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
+ expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
+ maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
+ fold_builtin_snprintf_chk, fold_builtin_printf,
+ fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
+ do_mpfr_arg3, do_mpfr_sincos): Likewise.
+ * cfgcleanup.c (cleanup_cfg): Likewise.
+ * cfgexpand.c (tree_expand_cfg): Likewise.
+ * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
+ * function.c (get_next_funcdef_no): Likewise.
+ * gengtype.c (main): Likewise.
+ * genmodes.c (main): Likewise.
+ * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
+ * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
+ * ifcvt.c (noce_emit_move_insn): Likewise.
+ * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
+ Likewise.
+ * stor-layout.c (get_best_mode): Likewise.
+ * tree-ssa-loop-niter.c (get_val_for): Likewise.
+ * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
+ scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
+ perform_var_substitution, solve_graph): Likewise.
+ * tree-vrp.c (vrp_finalize): Likewise.
+
+2007-02-01 Ian Lance Taylor <iant@google.com>
+
+ * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
+ high part of a paradoxical subreg, return a constant zero.
+
+2007-02-01 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * toplev.c (lang_dependent_init): Call init_set_costs.
+ * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
+
+2007-02-01 Richard Guenther <rguenther@suse.de>
+
+ PR middle-end/30656
+ * fold-const.c (fold_negate_expr): Allow negating a
+ constant if overflow does not change.
+
+2007-02-01 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ * doc/c-tree.texi (Expression trees): Improve markup.
+ * doc/tm.texi (Register Classes, Addressing Modes)
+ (Floating Point): Fix spacing after abbreviations. Fix some
+ typos.
+
+2007-02-01 Ben Elliston <bje@au.ibm.com>
+
+ * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
+ * doc/contrib.texi: Likewise.
+ * doc/install.texi: Likewise.
+
+2007-01-31 Richard Henderson <rth@redhat.com>
+ Ian Lance Taylor <iant@google.com>
+
+ * lower-subreg.c: New file.
+ * rtl.def (CONCATN): Define.
+ * passes.c (init_optimization_passes): Add pass_lower_subreg and
+ pass_lower_subreg2.
+ * emit-rtl.c (update_reg_offset): New static function, broken out
+ of gen_rtx_REG_offset.
+ (gen_rtx_REG_offset): Call update_reg_offset.
+ (gen_reg_rtx_offset): New function.
+ * regclass.c: Revert patch of 2006-03-05, restoring
+ reg_scan_update.
+ (clear_reg_info_regno): New function.
+ * dwarf2out.c (concatn_loc_descriptor): New static function.
+ (loc_descriptor): Handle CONCATN.
+ * common.opt (fsplit_wide_types): New option.
+ * opts.c (decode_options): Set flag_split_wide_types when
+ optimizing.
+ * timevar.def (TV_LOWER_SUBREG): Define.
+ * rtl.h (gen_reg_rtx_offset): Declare.
+ (reg_scan_update): Declare.
+ * regs.h (clear_reg_info_regno): Declare.
+ * tree-pass.h (pass_lower_subreg): Declare.
+ (pass_lower_subreg2): Declare.
+ * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
+ (Optimize Options): Add -fsplit-wide-types to -O1 list. Document
+ -fsplit-wide-types.
+ * doc/rtl.texi (Regs and Memory): Document concat and concatn.
+ * Makefile.in (OBJS-common): Add lower-subreg.o.
+ (lower-subreg.o): New target.
+
+2007-01-31 Kazu Hirata <kazu@codesourcery.com>
+
+ * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.
+
+2007-01-31 Anatoly Sokolov <aesok@post.ru>
+
+ PR target/19087
+ * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.
+
2007-01-31 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
PR middle-end/29335
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