gcc/ChangeLog

   1 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
   2
   3         * dominance.c: Add comment about why we use DFS numbering
   4         of dominance tree.
   5
   6 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
   7             Richard Henderson  <rth@redhat.com>
   8
   9         Merge from gomp-branch:
  10         * varasm.c (assemble_variable): Handle thread-local COMMON data.
  11         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
  12
  13 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
  14
  15         PR rtl-optimization/25578
  16         * combine.c (combine_simplify_rtx, force_to_mode): Don't
  17         pass a parameter to simplify_shift_const if changing ASHIFTRT
  18         to LSHIFTRT.
  19
  20 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
  21
  22         * gcc/builtins.c (get_builtin_sync_mem): New function.
  23         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
  24         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
  25         Call get_builtin_sync_mem to generate mem rtx.
  26
  27 2006-01-03  Richard Guenther  <rguenther@suse.de>
  28
  29         PR c/25183
  30         * stmt.c (add_case_node): Make sure to clear overflow flags
  31         from ranges.
  32
  33 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
  34
  35         Merge from gomp-branch.
  36         * config/sparc/sync.md: New file.
  37         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
  38         UNSPECV_LDSTUB): New constants.
  39         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
  40         * config/sparc/predicates.md (memory_reg_operand): New predicate.
  41         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
  42         prototype.
  43
  44 2006-01-03  Roger Sayle  <roger@eyesopen.com>
  45
  46         * combine.c (reg_subword_p): New predicate to test whether the
  47         destination of a set refers to a subword/piece of a register.
  48         (try_combine): Generalize the code to merge the setting of a
  49         pseudo to a constant followed by a set of a subword of that
  50         register to a constant.
  51
  52 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
  53
  54         * basic-block.h (control_flow_graph): Change the type of
  55         x_label_to_block_map to VEC(basic_block,gc) *.
  56         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
  57         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
  58
  59         * tree-ssa-propagate.c (cfg_blocks): Change the type to
  60         VEC(basic_block,heap) *.
  61         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
  62         ssa_prop_fini): Adjust the uses of cfg_blocks.
  63
  64 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
  65
  66         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
  67         COMPONENT_REFs.
  68         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
  69         hashing trees instead of a pointer hash.
  70         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
  71         compare for MEM_EXPR.
  72
  73         PR rtl-optimization/25130
  74         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
  75         when comparing MEMs for GCSE
  76
  77 2006-01-03  Ben Elliston  <bje@au.ibm.com>
  78
  79         * targhooks.h (default_decimal_float_supported_p): Declare.
  80         * targhooks.c (default_decimal_float_supported_p): Define.
  81         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
  82         `default_decimal_float_supported_p'.
  83         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
  84
  85 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
  86
  87         * combine.c (apply_distributive_law <SUBREG>): Check
  88         TRULY_NOOP_TRUNCATION.
  89
  90 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
  91
  92         * dwarf2out.c (have_switched_text_section): Delete.
  93         (have_multiple_function_sections): New.
  94         (have_location_lists): Make 'bool'.
  95         (add_AT_loc_list): Use 'true' not '1'.
  96         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
  97         (output_loc_list): Use have_multiple_function_sections.
  98         (output_ranges): Likewise.
  99         (dwarf2out_begin_function): Set have_multiple_function_sections if
 100         necessary.
 101         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
 102         Check function_section rather than DECL_SECTION_NAME.
 103         (dwarf2out_finish): Use have_multiple_function_sections.
 104         Don't clear have_location_lists.
 105
 106 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
 107             Jan Hubicka  <jh@suse.cz>
 108
 109         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
 110         case of conditional jump jumping to the next instruction.
 111         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
 112         cases of conditional jump jumping to the next instruction.
 113
 114 2006-01-02  Jan Hubicka  <jh@suse.cz>
 115
 116         * i386.c (*_cost): Add COSTS_N_INSNS.
 117         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
 118
 119 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
 120
 121         PR target/25259
 122         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
 123
 124 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 125
 126         * config/arm/arm.c (all_fpus): Fix comment typo.
 127         * config/darwin.c: Likewise.
 128         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
 129         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
 130         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
 131
 132 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
 133
 134         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
 135         (rs6000_split_compare_and_swapqhi): New.
 136         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
 137         (sync_compare_and_swapqhi_internal): New.
 138         * config/rs6000/rs6000-protos.h: Declare.
 139