gcc/ChangeLog

   1 2005-01-07  David Edelsohn  <edelsohn@gnu.org>
   2
   3         PR target/13674
   4         * config/rs6000/rs6000.c (rs6000_legitimize_reload_address):
   5         Convert non-word aligned offset address using ld/std into
   6         indirect address.
   7
   8 2005-01-07  Richard Henderson  <rth@redhat.com>
   9
  10         * config/i386/i386.md (sse_loadhps splitter): Fix operand number typo.
  11
  12 2005-01-07  Richard SAndiford  <rsandifo@redhat.com>
  13
  14         * tree.h (IS_EXPR_CODE_CLASS): Use a straight-forward range check.
  15
  16 2005-01-07  Jakub Jelinek  <jakub@redhat.com>
  17
  18         PR tree-optimization/19283
  19         * fold-const.c (fold_widened_comparison): Return NULL if shorter_type
  20         is not shorter than the original type.
  21
  22         PR rtl-optimization/19012
  23         * config/i386/i386.md (addqi_1_slp): Set memory attribute.
  24
  25         PR rtl-optimization/18861
  26         * cfgbuild.c (BLOCK_USED_BY_TABLEJUMP): Define.
  27         (FULL_STATE): Define.
  28         (mark_tablejump_edge): New function.
  29         (purge_dead_tablejump_edges): New function.
  30         (find_bb_boundaries): Use it.
  31
  32         PR tree-optimization/18828
  33         * builtins.c (expand_builtin_next_arg): Remove argument and all
  34         the argument checking.
  35         (expand_builtin): Adjust caller.
  36         (expand_builtin_va_start): Likewise.  Remove error for too many
  37         arguments.
  38         (fold_builtin_next_arg): Issue error for too many arguments.
  39         After checking arguments, replace them with magic arguments that
  40         prevent further checking of the args.
  41
  42 2005-01-06  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
  43
  44         * pa64-hpux.h (STARTFILE_SPEC): Fix typo in spec.
  45
  46 2005-01-06  Roger Sayle  <roger@eyesopen.com>
  47
  48         PR target/6077
  49         * gcc.c (input_suffix_matches): Tweak the semantics of %{.s:...}
  50         and %{.S:...} (and their negative variants) to test whether the
  51         input file is assembler or pre-processed-assembler independent of
  52         the actual filename extension.
  53
  54 2005-01-06  Roger Sayle  <roger@eyesopen.com>
  55
  56         * simplify-rtx.c (simplify_subreg): Simplify truncations of shifts
  57         of sign or zero extended values.
  58
  59 2005-01-06  Geoffrey Keating  <geoffk@apple.com>
  60
  61         * c-cppbuiltin.c (builtin_define_float_constants): Set __*_EPSILON__
  62         for IBM long double format correctly.
  63
  64 2005-01-06  Daniel Berlin <dberlin@dberlin.org>
  65
  66         Fix PR tree-optimization/18792
  67
  68         * tree-data-ref.c (build_classic_dist_vector): Change first_loop
  69         to first_loop_depth, and use loop depth instead of loop number.
  70         (build_classic_dir_vector): Ditto.
  71         (compute_data_dependences_for_loop): Use depth, not loop number.
  72         * tree-loop-linear.c (try_interchange_loops): Use loop depth, not loop
  73         number. Pass in loops, instead of loop numbers.
  74         (gather_interchange_stats): Ditto.
  75         (linear_transform_loops): Ditto.
  76
  77 2005-01-06  Richard Sandiford  <rsandifo@redhat.com>
  78
  79         PR rtl-opt/13299
  80         * loop.c (get_monotonic_increment, biased_biv_fits_mode_p,
  81         biv_fits_mode_p, extension_within_bounds_p): New functions.
  82         (check_ext_dependent_givs): Use them.
  83
  84 2005-01-06  Roger Sayle  <roger@eyesopen.com>
  85
  86         * cfgrtl.c (rtl_delete_block): A basic block may be followed by
  87         more than one barrier, in which case we should delete them all.
  88
  89 2005-01-06  Tobias Schlueter  <tobias.schlueter@physik.uni-muenchen.de>
  90
  91         * gcc.c (process_command): Change year in 'gcc --version' to 2005.
  92
  93 2005-01-05  Daniel Berlin  <dberlin@dberlin.org>
  94
  95         Fix PR middle-end/19286
  96         Fix PR debug/19267
  97         * dwarf2out.c (gen_subprogram_die): If we've already tried to
  98         output this subprogram, simply ignore this attempt to do it again.
  99         (add_abstract_origin_attribute): Don't abort trying to add the abstract
 100         origin attribute if it's not possible.
 101         (gen_block_die): Don't ignore subblocks of "unused" blocks.
 102         (decls_for_scope): Ditto.
 103         * gimple-low.c (mark_blocks_with_used_subblocks): Remove.
 104         (mark_used_blocks): Don't call mark_blocks_with_used_subblocks.
 105
 106 2005-01-05  Richard Henderson  <rth@redhat.com>
 107
 108         PR target/11327
 109         * config/i386/i386.c (BUILTIN_DESC_SWAP_OPERANDS): New.
 110         (bdesc_2arg): Use it.
 111         (ix86_expand_binop_builtin): Force operands into registers
 112         when optimizing.
 113         (ix86_expand_unop_builtin, ix86_expand_unop1_builtin,
 114         ix86_expand_sse_compare, ix86_expand_sse_comi,
 115         ix86_expand_builtin): Likewise.
 116
 117 2005-01-05  Richard Henderson  <rth@redhat.com>
 118
 119         * config/ia64/ia64.c (rtx_needs_barrier): Handle CONST_VECTOR
 120         and VEC_SELECT.
 121         * config/ia64/vect.md (mulv8qi3): Re-implement with mix_[rl].
 122         (mulv4hi3): Set itanium_class mmmul.
 123         (fpack_sfxf, fpack_xfsf, fpack_xfxf): Remove.
 124         (fpack): Rename from fpack_sfsf.
 125
 126 2005-01-05  Richard Henderson  <rth@redhat.com>
 127
 128         PR rtl-opt/10692
 129         * reload1.c (do_input_reload): Restrict the optimization deleteing
 130         a previous output reload to RELOAD_FOR_INPUT.
 131
 132 2005-01-05  Steven Bosscher  <stevenb@suse.de>
 133
 134         * combine.c (expand_compound_operation)  <ZERO_EXTRACT>: Add
 135         comment that we fall through after case.
 136         (mark_used_regs_combine): Don't expect a SIGN_EXTRACT in a SET_DEST.
 137         (distribute_links): Likewise.
 138         * cse.c (cse_insn): Likewise.
 139         * cselib.c (cselib_invalidate_mem): Likewise.
 140         * df.c: Update comments at the top of the file.
 141         (read_modify_subreg_p): Update comments here too.
 142         (df_def_record_1): Don't expect a SIGN_EXTRACT in a SET_DEST.
 143         * flow.c (mark_set_1): Likewise.
 144         (mark_used_regs): Likewise.
 145         * gcse.c (mems_conflict_for_gcse_p): Likewise.
 146         (canon_list_insert): Likewise.
 147         (mark_set): Likewise.
 148         (try_replace_reg): Likewise.
 149         (store_killed_in_insn): Likewise.
 150         * loop.c (count_one_set): Likewise.
 151         (basic_induction_var): Likewise.
 152         * postreload-gcse.c (find_mem_conflicts): Likewise.
 153         * postreload.c (reload_combine_note_store): Likewise.
 154         (move2add_note_store): Likewise.
 155         * reload.c (find_equiv_reg): Likewise.
 156         (mark_referenced_resources): Likewise.
 157         * rtlanal.c (set_noop_p): Likewise.
 158         (note_stores): Likewise.
 159         (note_uses): Likewise.
 160         * sched-deps.c (sched_analyze_1): Likewise.
 161         * sched-rgn.c (check_live_1): Likewise.
 162         (update_live_1): Likewise.
 163         * config/i860/i860.c: Likewise.
 164
 165         * rtl.dec (SIGN_EXTRACT): Document that this cannot appear as
 166         an lvalue.
 167         (ZERO_EXTRACT): Mention that this one can be an lvalue.
 168
 169         * doc/rtl.texi: Update documentation for bit-fields and SET.
 170
 171 2005-01-05  Roger Sayle  <roger@eyesopen.com>
 172
 173         * ifcvt.c (find_if_case_1): Revert 2005-01-04 change.
 174
 175 2005-01-05  Jan Hubicka  <jh@suse.cz>
 176             Richard Henderson  <rth@redhat.com>
 177
 178         PR target/18910
 179         * config/i386/i386.c (ix86_expand_move): Handle tls symbols
 180         with an offset.
 181
 182 2005-01-05  Richard Henderson  <rth@redhat.com>
 183
 184         PR target/12902
 185         * config/i386/i386.md (sse_movhps, sse_movlps): Remove.
 186         (sse_shufps): Change operand 3 to const_int_operand.
 187         (sse2_storelps): Fix typo in template.
 188         (sse_storehps, sse_loadhps, sse_storelps, sse_loadlps): New.
 189         * config/i386/i386.c (ix86_expand_vector_move_misalign): Use them.
 190         (ix86_expand_builtin): Likewise.
 191
 192 2005-01-05  Julian Brown  <julian@codesourcery.com>
 193
 194         * config/arm/arm.c (arm_return_in_memory): Treat complex types
 195         as aggregates for AAPCS ABIs.
 196
 197 2005-01-05  Stan Shebs  <shebs@apple.com>
 198
 199         * unwind-dw2-fde-darwin.c (examine_objects): Use 64-bit
 200         Mach-O getters if ppc64.
 201         * config/darwin.c (darwin_asm_output_dwarf_delta): Obey
 202         size argument.
 203         * config/darwin.h (ASM_PREFERRED_EH_DATA_FORMAT): Use
 204         signed four-byte field for global code case.
 205         (STARTFILE_SPEC): Avoid crt2.o for 64-bit compilation.
 206
 207 2005-01-05  Roger Sayle  <roger@eyesopen.com>
 208
 209         PR middle-end/19100
 210         * c-common.c: Include real.h.
 211         (c_common_truthvalue_conversion): Avoid destructively modifying expr.
 212         Correctly handle TREE_CONSTANT_OVERFLOW for INTEGER_CST.
 213         Correctly handle TREE_CONSTANT_OVERFLOW and NaNs for REAL_CST.
 214         * Makefile.in (c-common.o): Update dependencies.
 215
 216 2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>
 217
 218         * c-parse.in (asm_string): Add trailing semicolon.
 219
 220 2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>
 221
 222         * c-parse.in (asm_string): New.  Don't allow wide strings in
 223         'asm'.
 224         (simple_asm_expr, asm_argument, asm_operand, asm_clobbers): Use
 225         asm_string instead of STRING.
 226
 227 2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>
 228
 229         * c-typeck.c (constructor_no_implicit): Remove.
 230         (set_designator, process_init_element): Don't check
 231         constructor_no_implicit.
 232
 233 2005-01-05  J"orn Rennecke <joern.rennecke@st.com>
 234             Kaz Kojima  <kkojima@gcc.gnu.org>
 235
 236         PR target/16482
 237         * lcm.c (create_pre_exit): New.
 238         (optimize_mode_switching): In MODE_ENTRY / MODE_EXIT case, set
 239         ENTRY_EXIT_EXTRA to 3.  Use create_pre_exit.
 240
 241 2004-01-05  Richard Earnshaw  <rearnsha@arm.com>
 242
 243         * arm.h (TARGET_OPTIONS): Correctly record -mhard-float and
 244         -msoft-float in target_float_switch.
 245         * arm.c (arm_override_options): Fix processing of target_float_switch.
 246
 247 2004-01-05  Richard Earnshaw  <rearnsha@arm.com>
 248
 249         * arm/vfp.md (arm_movsi_vfp): Hide VFP register classes from register
 250         preferencing.
 251
 252 2004-01-05  Uros Bizjak  <uros@kss-loka.si>
 253
 254         * doc/invoke.texi (Intel 386 and AMD x86-64 Options):
 255         Replace i387 with 'i386 compiler' in -mfpmath=sse option.
 256
 257 2005-01-04  Roger Sayle  <roger@eyesopen.com>
 258
 259         * ifcvt.c (find_if_case_1): Avoid creating an empty forwarder block,
 260         if deleting the then-block allows the test-block to fallthru to the
 261         else-block.
 262
 263 2005-01-04  Andrew Pinski  <pinskia@physics.uc.edu>
 264
 265         PR c/19152
 266         * c-decl.c (diagnose_mismatched_decls): Accept "extern inline" declared
 267         after the full declaration if the are in two different TUs.
 268
 269 2005-01-04  Richard Henderson  <rth@redhat.com>
 270
 271         PR tree-opt/19158
 272         * tree-sra.c (generate_one_element_init): Just
 273         call gimplify_and_add.
 274         (generate_element_init): Record the
 275         new referenced variables and mark them for renaming
 276         and split out to ...
 277         (generate_element_init_1): This.
 278         (scalarize_init): Don't call push_gimplify_context/
 279         pop_gimplify_context.
 280
 281 2005-01-04  Geoffrey Keating  <geoffk@apple.com>
 282
 283         * toplev.c (get_src_pwd): Handle failure of getpwd().
 284
 285 2005-01-04  Roger Sayle  <roger@eyesopen.com>
 286
 287         * fold-const.c (fold_single_bit_test): Delete unreachable handling
 288         of TRUTH_NOT_EXPR.
 289         (fold): Don't call fold_single_bit_test with a TRUTH_NOT_EXPR, as
 290         all the cases handled by it are inverted by invert_truthvalue.
 291
 292 2005-01-04  Eric Botcazou  <ebotcazou@libertysurf.fr>
 293
 294         * config/sparc/sparc.md (save_register_windowdi): Add missing mode.
 295         (save_register_windowsi): Likewise.
 296
 297 2005-01-04  Richard Henderson  <rth@redhat.com>
 298
 299         * tree-mudflap.c (mf_varname_tree): Fix thinko setting declname.
 300
 301 2005-01-04  Uros Bizjak  <uros@kss-loka.si>
 302
 303         PR middle-end/17767
 304         * cse.c (fold_rtx) [RTX_COMPARE, RTX_COMM_COMPARE]: Don't attempt
 305         any simplifications of vector mode comparison operators.
 306         * simplify-rtx.c (simplify_relational_operation): Fix variable name.
 307
 308 2005-01-04  Paolo Bonzini  <bonzini@gnu.org>
 309             Devang Patel  <dpatel@apple.com>
 310
 311         PR tree-optimization/18308
 312         * tree-if-conv.c (add_to_dst_predicate_list): Gimplify
 313         the operands before creating a new expression.
 314         * dojump.c (do_jump): Make drop_through_label available
 315         for all cases.  Add expansion of COND_EXPR.
 316
 317 2005-01-04  Ira Rosen  <irar@il.ibm.com>
 318
 319         * tree-vectorizer.c (vect_analyze_offset_expr): Test for
 320         INTEGER_CST instead of TREE_CONSTANT.
 321         (vect_gen_niters_for_prolog_loop): Test for INTEGER_CST
 322         instead of TREE_CONSTANT.
 323         (vect_analyze_pointer_ref_access): Test for INTEGER_CST
 324         instead of TREE_CONSTANT.
 325
 326 2005-01-04  Eric Botcazou  <ebotcazou@libertysurf.fr>
 327
 328         * tree-eh.c (replace_goto_queue): Return early if the queue is empty.
 329
 330 2005-01-04  Uros Bizjak  <uros@kss-loka.si>
 331
 332         PR target/19240
 333         * config/i386/i386.md (*fop_df_1_i387): Disable for TARGET_SSE_MATH.
 334         (*fop_df_1_i387): Disable for (TARGET_SSE2 && TARGET_SSE_MATH).
 335
 336 2005-01-03  Richard Henderson  <rth@redhat.com>
 337
 338         * fold-const.c (force_fit_type): Cope with types larger than 2 HWI.
 339         (fold_convert_const_int_from_int, fold_convert_const_int_from_real,
 340         fold_convert_const_real_from_real): Split out from ...
 341         (fold_convert_const): ... here.
 342
 343 2005-01-03  Richard Henderson  <rth@redhat.com>
 344
 345         PR target/19235
 346         * config/i386/i386.md (movdi_2): Separate SSE1 and SSE2 alternatives.
 347         (mov<MMXMODEI>_internal): Likewise.
 348         (movdf_nointeger): Prefer Y while not preferring, but allowing, x.
 349         Add V2SF case; use it for SSE1; don't use TI.
 350         (movdf_integer): Likewise.
 351         (mov<SSEMODEI>_internal, movti_internal): Force V4SF for SSE1.
 352
 353 2005-01-03  Ira Rosen  <irar@il.ibm.com>
 354
 355         * tree-vectorizer.c (vect_strip_conversions): New function.
 356         (vect_analyze_offset_expr): Call vect_strip_conversions. Add
 357         check for binary class.
 358
 359 2005-01-03  Daniel Berlin  <dberlin@dberlin.org>
 360
 361         Fix PR debug/17924
 362         Fix PR debug/19191
 363         * dwarf2out.c (block_ultimate_origin): Follow decl origin if origin
 364         is a decl.
 365         * gimple-low.c (mark_blocks_with_used_vars): New function.
 366         (mark_blocks_with_used_subblocks): Ditto.
 367         (mark_used_blocks): Ditto.
 368         (pass_mark_used_blocks): New pass.
 369         * tree-inline.c: Include debug.h.
 370         (expand_call_inline): Call outlining_inline_function here.
 371         * tree-optimize.c (init_tree_optimization_passes): Add
 372         pass_mark_used_blocks.
 373         * tree-pass.h (pass_mark_used_blocks): New.
 374         * Makefile.in (tree-inline.o): Add debug.h dependency.
 375
 376 2005-01-03  Geoffrey Keating  <geoffk@apple.com>
 377
 378         * config/darwin.c (darwin_handle_weak_import_attribute): Permit
 379         VAR_DECLs to have weak_import attribute.
 380
 381         * config/rs6000/darwin-fallback.c: Use 'ucontext_t' rather than
 382         'struct ucontext'.
 383
 384 2004-01-03  Steven Bosscher  <stevenb@suse.de>
 385
 386         * passes.c (rest_of_compilation): Don't run regmove if only
 387         flag_expensive_optimizations, require flag_regmove instead.
 388
 389 2005-01-03  Eric Botcazou  <ebotcazou@libertysurf.fr>
 390
 391         * config/sparc/litecoff.h (TARGET_OS_CPP_BUILTINS): Do not
 392         register "sparc".
 393         * config/sparc/sysv4-only.h (TARGET_OS_CPP_BUILTINS): Likewise.
 394         * config/sparc/rtemself.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.
 395         * config/sparc/sol2-64.h (TARGET_SUB_OS_CPP_BUILTINS): Delete.
 396         * config/sparc/sp64-elf.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.
 397
 398 2005-01-03  Richard Henderson  <rth@redhat.com>
 399
 400         * config/ia64/ia64.c (TARGET_VECTOR_MODE_SUPPORTED_P): New.
 401         (ia64_const_ok_for_letter_p): New.
 402         (ia64_const_double_ok_for_letter_p): New.
 403         (ia64_extra_constraint): New.
 404         (ia64_expand_vecint_compare): New.
 405         (ia64_expand_vcondu_v2si): New.
 406         (ia64_expand_vecint_cmov): New.
 407         (ia64_expand_vecint_minmax): New.
 408         (ia64_print_operand): Add 'v'.
 409         (ia64_preferred_reload_class): New.
 410         (ia64_vector_mode_supported_p): New.
 411         * config/ia64/ia64.h (UNITS_PER_SIMD_WORD): New.
 412         (PREFERRED_RELOAD_CLASS): Move to function.
 413         (CONST_OK_FOR_LETTER_P): Move to function.
 414         (CONST_DOUBLE_OK_FOR_LETTER_P): Move to function.
 415         (CONSTRAINT_OK_FOR_Q, CONSTRAINT_OK_FOR_R): Remove.
 416         (CONSTRAINT_OK_FOR_S, CONSTRAINT_OK_FOR_T): Remove.
 417         (EXTRA_CONSTRAINT): Move to function.
 418         * config/ia64/ia64.md: Include vect.md.
 419         (itanium_class): Add mmalua.
 420         (type): Handle it.
 421         * config/ia64/itanium1.md (1_mmalua): New.  Add it to bypasses.
 422         (1b_mmalua): New.
 423         * config/ia64/itanium2.md (2_mmalua, 2b_mmalua): Similarly.
 424         * config/ia64/predicates.md (gr_reg_or_0_operand): Accept any
 425         CONST0_RTX.
 426         (const_int_2bit_operand): New.
 427         (fr_reg_or_0_operand): New.
 428         * config/ia64/ia64-modes.def: Add vector modes.
 429         * config/ia64/ia64-protos.h: Update.
 430         * config/ia64/vect.md: New file.
 431
 432 2005-01-03  Richard Henderson  <rth@redhat.com>
 433
 434         * simplify-rtx.c (simplify_binary_operation): Handle VEC_CONCAT.
 435
 436 2005-01-03  Uros Bizjak  <uros@kss-loka.si>
 437
 438         PR target/19236
 439         * config/i386/i386.c (log1psf2): Change mode of operands[0,1]
 440         to SFmode.
 441         (log1pdf2): Change mode of operands[0,1] to DFmode.
 442
 443 2005-01-03  Eric Botcazou  <ebotcazou@libertysurf.fr>
 444
 445         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Define to false.
 446         * config/sparc/linux.h (SPARC_RELAXED_ORDERING): Define to true.
 447         * config/sparc/linux64.h (SPARC_RELAXED_ORDERING): Likewise.
 448         * config/sparc/sparc.c (TARGET_RELAXED_ORDERING): Define to
 449         SPARC_RELAXED_ORDERING.
 450
 451 2005-01-03  Richard Henderson  <rth@redhat.com>
 452             Uros Bizjak  <uros@kss-loka.si>
 453
 454         PR target/14631
 455         * config/i386/i386.c (ix86_expand_builtin): [IX86_BUILTIN_PINSRW,
 456         IX86_BUILTIN_PINSRW128]: Fix wrong selector range in error message.
 457         * config/i386/i386.md (mmx_pinsrw, sse2_pinsrw): Fix selector
 458         handling.
 459         (*mmx_pinsrw, *sse2_pinsrw): New patterns.
 460         * config/i386/i386/predicates.md (const_pow2_1_to_8_operand,
 461         const_pow2_1_to_128_operand): New predicates.
 462
 463 2005-01-02  Greg McGary  <greg@mcgary.org>
 464
 465         * tree-mudflap.c (mf_varname_tree): decl_printable_name handles
 466         anonymous decls.
 467         (mf_xform_derefs_1) [RESULT_DECL, STRING_CST]: Handle as innermost
 468         object.  [ptr_type]: Remove unused variable.
 469         Remember nearest addressable array-element or record-component
 470         when checking bitfield components.  Tolerate empty BIND_EXPR.
 471
 472 2005-01-01  Richard Henderson  <rth@redhat.com>
 473
 474         * tree-vectorizer.c (vect_analyze_offset_expr): Strip conversions
 475         that don't narrow the value.  Fail for other conversions.
 476
 477 2005-01-01  Richard Henderson  <rth@redhat.com>
 478
 479         PR c/19031
 480         * c-decl.c (pop_file_scope): Call maybe_apply_pending_pragma_weaks.
 481         * c-lang.c (finish_file): Don't do it here.
 482         * objc/objc-act.c (objc_finish_file): Likewise.
 483
 484         * cgraph.c (decl_assembler_name_equal): New.
 485         (cgraph_node_for_asm, cgraph_varpool_node_for_asm): New.
 486         (cgraph_varpool_node): Actually link up cgraph_varpool_nodes.
 487         * cgraph.h (struct cgraph_varpool_node): Add next.
 488         (cgraph_node_for_asm, cgraph_varpool_node_for_asm): Declare.
 489         * varasm.c (assemble_alias): Mark the target as needed.
 490
 491 2005-01-01  Andrew Pinski  <pinskia@physics.uc.edu>
 492
 493         PR middle-end/19221
 494         * function.c (get_arg_pointer_save_area): Use entry_of_function
 495         instead of get_insns.
 496
 497 2005-01-01  Roger Sayle  <roger@eyesopen.com>
 498             Andrew Pinski  <pinskia@physics.uc.edu>
 499             James E. Wilson  <wilson@specifixinc.com>
 500
 501         PR rtl-optimization/12092
 502         * loop.c (emit_prefetch_instructions): Do nothing if PREFETCH_BLOCK
 503         is zero.
 504
 505 2005-01-01  Roger Sayle  <roger@eyesopen.com>
 506             Olivier Hainque  <hainque@act-europe.fr>
 507
 508         * tree.c (int_fits_type_p): A narrower type always fits in a
 509         wider one, except for negative values into unsigned types.
 510
 511 2005-01-01  Roger Sayle  <roger@eyesopen.com>
 512
 513         * tree.c (int_fits_type_p): Compare the result of force_fit_type
 514         with the original constant rather than require TREE_OVERFLOW.
 515
 516 2005-01-01  Steven Bosscher  <stevenb@suse.de>
 517
 518         PR middle-end/17544
 519         * c-decl.c (finish_function): If compiling C99, annotate the
 520         compiler generated return with the current file name and line 0.
 521         * tree-cfg.c (remove_useless_stmts_warn_notreached): Only warn if
 522         the source line is greater than 0.
 523         (remove_bb): Likewise.
 524
 525 See ChangeLog.12 for earlier changes.