gcc/ChangeLog

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