gcc/ChangeLog

   1 2006-01-05  Richard Guenther  <rguenther@suse.de>
   2             Diego Novillo  <dnovillo@redhat.com>
   3
   4         * tree-pass.h (TODO_remove_unused_locals): Define.
   5         * gimple-low.c (expand_var_p, remove_useless_vars,
   6         pass_remove_useless_vars): Remove.  Update all users.
   7         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
   8         (remove_unused_locals): New function.
   9         * tree-flow.h (remove_unused_locals): Declare.
  10         * passes.c (execute_todo): Call remove_unused_locals if
  11         TODO_remove_unused_locals is set.
  12         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
  13         * tree-ssa-dce.c (pass_dce): Likewise.
  14         * tree-outof-ssa.c (pass_del_ssa): Likewise.
  15
  16 2006-01-05  Richard Guenther  <rguenther@suse.de>
  17
  18         * tree-flow.h (struct fieldoff): Decompose field to
  19         type, size and decl.
  20         * tree-ssa-alias.c (create_sft): Take type as parameter.
  21         (create_overlap_variables_for): Store type, size and decl
  22         in the fieldoff structure.
  23         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
  24         of struct fieldoff.
  25         (push_fields_onto_fieldstack): Likewise.
  26         (create_variable_info_for): Likewise.  Use offset for the
  27         SFT name if the decl is not available.
  28
  29 2006-01-04  Paul Brook  <paul@codesourcery.com>
  30
  31         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
  32
  33 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
  34
  35         * lambda-code.c (can_put_in_inner_loop): Relax
  36         restrictions.
  37         (can_put_after_inner_loop): New function.
  38         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
  39         (perfect_nestify): Change to make copies and modify uses.
  40
  41 2006-01-04  Richard Henderson  <rth@redhat.com>
  42
  43         Merge from gomp branch:
  44         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
  45         via integer constant.
  46         (pragma_lex): Remove.
  47         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
  48         rather than parsing it.
  49         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
  50         handle_pragma_extern_prefix): Add %< %> quotes.
  51         (registered_pragmas): New.
  52         (c_register_pragma_1): New.
  53         (c_register_pragma): Use it.
  54         (c_register_pragma_with_expansion): Likewise.
  55         (c_invoke_pragma_handler): New.
  56         (init_pragma): Use cpp_register_deferred_pragma directly for
  57         pch_preprocess.
  58         * c-pragma.h (enum pragma_kind): New.
  59         (pragma_handler): New.
  60         (c_invoke_pragma_handler): Declare.
  61         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
  62         CPP_PRAGMA_EOL.
  63         * c-common.h (c_common_pch_pragma): Update decl.
  64         * Makefile.in (c-parser.o): Update dependencies.
  65         (GTFILES): Add c-pragma.h.
  66         * c-parser.c (struct c_token): Add pragma_kind.
  67         (struct c_parser): Add in_pragma.
  68         (c_lex_one_token): Always initialize keyword and pragma_kind.
  69         Extract data for CPP_PRAGMA.
  70         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
  71         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
  72         Don't allow CPP_PRAGMA_EOL if in_pragma.
  73         (c_parser_consume_pragma): New.
  74         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
  75         (c_parser_skip_to_end_of_parameter): Likewise.
  76         (c_parser_skip_to_end_of_block_or_statement): Likewise.
  77         (c_parser_skip_to_pragma_eol): New.
  78         (c_parser_external_declaration): Handle CPP_PRAGMA.
  79         (c_parser_compound_statement_nostart): Likewise.
  80         (c_parser_statement_after_labels): Likewise.
  81         (c_parser_pragma): New.
  82         (pragma_lex): Likewise.
  83         (c_parser_pragma_pch_preprocess): New.
  84         (c_parser_new): Merge into ...
  85         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
  86
  87 2005-01-04  Jeff Law  <law@redhat.com>
  88
  89         PR ada/24994
  90         * tree-cfg.c (bsi_replace): Remove the original statement
  91         from the EH throw statement table.
  92
  93 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
  94
  95         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
  96         make the prototype extern "C" and add throw ().
  97
  98         PR target/25554
  99         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
 100         and pos non-negative and pos + len <= 32.
 101         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
 102         drop pos + len < HOST_BITS_PER_WIDE_INT test.
 103         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
 104
 105         PR c/25559
 106         * c-common.c (handle_vector_size_attribute): Reject zero vector size
 107         as well as sizes not multiple of component size.
 108
 109         PR debug/25562
 110         * function.c (instantiate_expr): New function.
 111         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
 112         walk its DECL_VALUE_EXPR with instantiate_expr.
 113
 114         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
 115         DW_OP_deref{,_size} if address isn't going to be added.
 116
 117 2006-01-04  Ben Elliston  <bje@au.ibm.com>
 118
 119         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
 120         * config/fp-bit.c: Likewise.
 121
 122 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
 123
 124         * dominance.c: Add comment about why we use DFS numbering
 125         of dominance tree.
 126
 127 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 128             Richard Henderson  <rth@redhat.com>
 129
 130         Merge from gomp-branch:
 131         * varasm.c (assemble_variable): Handle thread-local COMMON data.
 132         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
 133
 134 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
 135
 136         PR rtl-optimization/25578
 137         * combine.c (combine_simplify_rtx, force_to_mode): Don't
 138         pass a parameter to simplify_shift_const if changing ASHIFTRT
 139         to LSHIFTRT.
 140
 141 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
 142
 143         * gcc/builtins.c (get_builtin_sync_mem): New function.
 144         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
 145         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
 146         Call get_builtin_sync_mem to generate mem rtx.
 147
 148 2006-01-03  Richard Guenther  <rguenther@suse.de>
 149
 150         PR c/25183
 151         * stmt.c (add_case_node): Make sure to clear overflow flags
 152         from ranges.
 153
 154 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 155
 156         Merge from gomp-branch.
 157         * config/sparc/sync.md: New file.
 158         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
 159         UNSPECV_LDSTUB): New constants.
 160         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
 161         * config/sparc/predicates.md (memory_reg_operand): New predicate.
 162         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
 163         prototype.
 164
 165 2006-01-03  Roger Sayle  <roger@eyesopen.com>
 166
 167         * combine.c (reg_subword_p): New predicate to test whether the
 168         destination of a set refers to a subword/piece of a register.
 169         (try_combine): Generalize the code to merge the setting of a
 170         pseudo to a constant followed by a set of a subword of that
 171         register to a constant.
 172
 173 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
 174
 175         * basic-block.h (control_flow_graph): Change the type of
 176         x_label_to_block_map to VEC(basic_block,gc) *.
 177         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
 178         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
 179
 180         * tree-ssa-propagate.c (cfg_blocks): Change the type to
 181         VEC(basic_block,heap) *.
 182         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
 183         ssa_prop_fini): Adjust the uses of cfg_blocks.
 184
 185 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
 186
 187         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
 188         COMPONENT_REFs.
 189         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
 190         hashing trees instead of a pointer hash.
 191         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
 192         compare for MEM_EXPR.
 193
 194         PR rtl-optimization/25130
 195         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
 196         when comparing MEMs for GCSE
 197
 198 2006-01-03  Ben Elliston  <bje@au.ibm.com>
 199
 200         * targhooks.h (default_decimal_float_supported_p): Declare.
 201         * targhooks.c (default_decimal_float_supported_p): Define.
 202         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
 203         `default_decimal_float_supported_p'.
 204         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
 205
 206 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
 207
 208         * combine.c (apply_distributive_law <SUBREG>): Check
 209         TRULY_NOOP_TRUNCATION.
 210
 211 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
 212
 213         * dwarf2out.c (have_switched_text_section): Delete.
 214         (have_multiple_function_sections): New.
 215         (have_location_lists): Make 'bool'.
 216         (add_AT_loc_list): Use 'true' not '1'.
 217         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
 218         (output_loc_list): Use have_multiple_function_sections.
 219         (output_ranges): Likewise.
 220         (dwarf2out_begin_function): Set have_multiple_function_sections if
 221         necessary.
 222         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
 223         Check function_section rather than DECL_SECTION_NAME.
 224         (dwarf2out_finish): Use have_multiple_function_sections.
 225         Don't clear have_location_lists.
 226
 227 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
 228             Jan Hubicka  <jh@suse.cz>
 229
 230         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
 231         case of conditional jump jumping to the next instruction.
 232         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
 233         cases of conditional jump jumping to the next instruction.
 234
 235 2006-01-02  Jan Hubicka  <jh@suse.cz>
 236
 237         * i386.c (*_cost): Add COSTS_N_INSNS.
 238         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
 239
 240 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
 241
 242         PR target/25259
 243         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
 244
 245 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 246
 247         * config/arm/arm.c (all_fpus): Fix comment typo.
 248         * config/darwin.c: Likewise.
 249         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
 250         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
 251         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
 252
 253 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
 254
 255         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
 256         (rs6000_split_compare_and_swapqhi): New.
 257         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
 258         (sync_compare_and_swapqhi_internal): New.
 259         * config/rs6000/rs6000-protos.h: Declare.
 260