gcc/ChangeLog

   1 2007-01-04  Jan Hubicka  <jh@suse.cz>
   2
   3         * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
   4         set.
   5         (fold_marked_statements): New function.
   6         (optimize_inline_calls, tree_function_versioning): Fold new statements.
   7         * tree-inline.h (copy_body_data): Add statemetns_to_fold.
   8
   9 2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>
  10
  11         * config.gcc: Mention libgcc/config.host.
  12         * Makefile.in: Update comments mentioning libgcc.
  13         (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
  14         (all.cross, start.encap, rest.encap, rest.cross): Update
  15         dependencies for libgcc move.
  16         (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
  17         (clean-target, clean-target-libgcc): Delete.
  18         (srcdirify, GCC_EXTRA_PARTS): New macros.
  19         (libgcc-support, libgcc.mvars): New rules.
  20         (distclean): Remove mention of mklibgcc.
  21         (install): Don't reference INSTALL_LIBGCC.
  22         (install-common): Don't reference EXTRA_PARTS.
  23         (install-libgcc, install-multilib): Delete rules.
  24         * mklibgcc.in: Delete file.
  25         * doc/configfiles.texi: Don't mention mklibgcc.
  26
  27         * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
  28         * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
  29         * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
  30         * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
  31         (mklibgcc, ldblspecs): Likewise.
  32
  33         * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
  34         (posixpre.def): Use $(T).
  35         (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
  36         (SHLIB_SRC, SHLIB_INSTALL): Delete.
  37         (SHLIB_LINK): Make dummy.
  38         * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.
  39
  40         * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.
  41
  42         * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
  43         * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
  44         config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
  45         config/rs6000/t-newas, config/sparc/t-elf: Likewise.
  46
  47         * configure.ac (all_outputs): Remove mklibgcc.
  48         * configure: Regenerated.
  49
  50 2007-01-03  Josh Conner  <jconner@apple.com>
  51
  52         PR middle-end/29683
  53         * calls.c (compute_argument_addresses): Set stack and stack_slot
  54         for partial args, too.
  55         (store_one_arg): Use locate.size.constant for the size when
  56         generating a save_area.
  57
  58 2007-01-03  Robert Kennedy <jimbob@google.com>
  59
  60         * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
  61         whose definitions are deleted due to basic block merging.
  62
  63 2007-01-03  Paul Brook  <paul@codesourcery.com>
  64
  65         PR target/16634
  66         * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
  67         functions.
  68         (use_return_insn): Return 0 for Thumb interrupt functions.
  69         (print_multi_reg): Add rfe argument for IRQ returns.
  70         (arm_output_epilogue): Pop interrupt return address directly into PC.
  71         (arm_expand_prologue): Only adjust IRQ return address in Arm mode.
  72
  73 2007-01-03  Paul Brook  <paul@codesourcery.com>
  74
  75         Merge from sourcerygxx-4_1.
  76         * config/arm/thumb2.md: New file.
  77         * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
  78         Thumb-2.
  79         * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
  80         * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
  81         (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
  82         * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
  83         tables.
  84         (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
  85         * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
  86         comptibility.
  87         * config/arm/ieee754-sf.S: Ditto.
  88         * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
  89         (thumb1_base_register_rtx_p): ... to this.
  90         (thumb_index_register_rtx_p): Rename...
  91         (thumb1_index_register_rtx_p): ... to this.
  92         (thumb_output_function_prologue): Rename...
  93         (thumb1_output_function_prologue): ... to this.
  94         (thumb_legitimate_address_p): Rename...
  95         (thumb1_legitimate_address_p): ... to this.
  96         (thumb_rtx_costs): Rename...
  97         (thumb1_rtx_costs): ... to this.
  98         (thumb_compute_save_reg_mask): Rename...
  99         (thumb1_compute_save_reg_mask): ... to this.
 100         (thumb_final_prescan_insn): Rename...
 101         (thumb1_final_prescan_insn): ... to this.
 102         (thumb_expand_epilogue): Rename...
 103         (thumb1_expand_epilogue): ... to this.
 104         (arm_unwind_emit_stm): Rename...
 105         (arm_unwind_emit_sequence): ... to this.
 106         (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
 107         thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
 108         thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
 109         arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
 110         thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
 111         thumb2_output_casesi): New functions.
 112         (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
 113         (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
 114         FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
 115         THUMB2_WORK_REGS): Define.
 116         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
 117         arm_condexec_mask, arm_condexec_masklen)): New variables.
 118         (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
 119         (arm_override_options): Check new CPU capabilities.
 120         Set new architecture flag variables.
 121         (arm_isr_value): Handle v7m interrupt functions.
 122         (user_return_insn): Return 0 for v7m interrupt functions.  Handle
 123         Thumb-2.
 124         (const_ok_for_arm): Handle Thumb-2 constants.
 125         (arm_gen_constant): Ditto.  Use movw when available.
 126         (arm_function_ok_for_sibcall): Return false for v7m interrupt
 127         functions.
 128         (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
 129         (thumb_find_work_register, arm_load_pic_register,
 130         legitimize_tls_address, arm_address_cost, load_multiple_sequence,
 131         emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
 132         print_multi_reg, output_mov_long_double_fpa_from_arm,
 133         output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
 134         output_mov_double_fpa_from_arm, output_move_double,
 135         arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
 136         output_return_instruction, arm_output_function_prologue,
 137         arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
 138         arm_output_mi_thunk, thumb_set_return_address): Ditto.
 139         (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
 140         (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
 141         (arithmetic_instr, shift_op): Use arm_shift_nmem.
 142         (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
 143         '!' and 'L'.
 144         (arm_final_prescan_insn): Use extract_constrain_insn_cached.
 145         (thumb_expand_prologue): Use thumb_set_frame_pointer.
 146         (arm_file_start): Output directive for unified syntax.
 147         (arm_unwind_emit_set): Handle stack alignment instruction.
 148         * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
 149         Add v6t2, v7, v7a, v7r and v7m.
 150         (RETLDM): Add Thumb-2 code.
 151         (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
 152         * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
 153         (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
 154         TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
 155         THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
 156         ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
 157         THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
 158         CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
 159         ADJUST_INSN_LENGTH): Define.
 160         (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
 161         STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
 162         BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
 163         PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
 164         SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
 165         TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
 166         HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
 167         HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
 168         REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
 169         REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
 170         LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
 171         GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
 172         ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
 173         FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
 174         PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
 175         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
 176         * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
 177         cortex-m3.
 178         * config/arm/arm-tune.md: Regenerate.
 179         * config/arm/arm-protos.h: Update prototypes.
 180         * config/arm/vfp.md: Enable patterns for Thumb-2.
 181         (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
 182         (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
 183         (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
 184         thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
 185         * config/arm/libunwind.S: Add Thumb-2 code.
 186         * config/arm/constraints.md: Update include Thumb-2.
 187         * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
 188         * config/arm/ieee754-df.S: Ditto.
 189         * config/arm/bpabi.S: Ditto.
 190         * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
 191         * config/arm/predicates.md (low_register_operand,
 192         low_reg_or_int_operand, thumb_16bit_operator): New.
 193         (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
 194         (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
 195         * config/arm/t-arm-elf: Add armv7 multilib.
 196         * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
 197         Include thumb2.md.
 198         (UNSPEC_STACK_ALIGN, ce_count): New.
 199         (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
 200         arm_zero_extendsidi2, arm_zero_extendqidi2): New
 201         insns/expanders.
 202         * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
 203         (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
 204         thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
 205         * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
 206         (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
 207         thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
 208         insns.
 209         * doc/extend.texi: Document ARMv7-M interrupt functions.
 210         * doc/invoke.texi: Document Thumb-2 new cores+architectures.
 211
 212 2007-01-03  Jakub Jelinek  <jakub@redhat.com>
 213
 214         * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
 215         (struct _Unwind_Context): Rename args_size to flags, remove
 216         signal_frame field, add a new args_size field and version field.
 217         (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
 218         _Unwind_IsExtendedContext): New inline functions.
 219         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
 220         Assume by_value array is only present if _Unwind_IsExtendedContext.
 221         (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
 222         _Unwind_IsSignalFrame.
 223         (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
 224         (uw_update_context_1): Use _Unwind_SetSignalFrame.
 225         (uw_init_context_1): Initialize context->flags to
 226         EXTENDED_CONTEXT_BIT.
 227         * config/rs6000/linux-unwind.h (frob_update_context): Use
 228         _Unwind_SetSignalFrame.
 229
 230 2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 231
 232         PR middle-end/30353
 233         * gimplify.c (gimplify_modify_expr_complex_part): Move below
 234         tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
 235         the value.
 236
 237 2007-01-03  Kazu Hirata  <kazu@codesourcery.com>
 238
 239         * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
 240         REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
 241         RET, AT_SP): Remove.
 242         * config/i386/i386.md (*sse_prologue_save_insn): Use return
 243         instead of RET.
 244
 245         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 246         * cfgbuild.c (find_basic_blocks): Likewise.
 247         * cfgrtl.c (rtl_create_basic_block): Likewise.
 248         * function.c (temp_slots_at_level): Likewise.
 249         * reg-stack.c (stack_regs_mentioned): Likewise.
 250         * regclass.c (allocate_reg_info): Likewise.
 251         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 252         set_bb_for_stmt, move_block_to_fn): Likewise.
 253         * tree-complex.c (tree_lower_complex): Likewise.
 254         * vec.h (VEC_safe_grow_cleared): New.
 255
 256         * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.
 257
 258 2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>
 259
 260         * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
 261         * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
 262         to loop_version.
 263         * cfgloopmanip.c (scale_loop_frequencies): Export.
 264         (loopify): Scale the frequencies by prescribed coefficients.
 265         (set_zero_probability): New function.
 266         (duplicate_loop_to_header_edge): Improve updating of frequencies.
 267         (lv_adjust_loop_entry_edge, loop_version): Set probabilities
 268         and frequencies according to arguments.
 269         * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
 270         correctly.
 271         * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
 272         * modulo-sched.c (sms_schedule): Set probabilities for entering
 273         versioned loop correctly.
 274         * tree-vect-transform.c (vect_transform_loop): Ditto.
 275         * cfgloop.h (loopify, loop_version): Declaration changed.
 276         (scale_loop_frequencies): Declared.
 277
 278 2007-01-02  Jan Hubicka  <jh@suse.cz>
 279
 280         * cgraph.c: Include tree-flow.h
 281         (cgraph_add_new-function): Handle IPA_SSA mode; execute
 282         early_local_passes.
 283         * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
 284         * tree-pass.h (pass_all_early_optimizations): Declare.
 285         * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
 286         early_local_passes.
 287         (cgraph_analyze_function): Do early_local_passes.
 288         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
 289         Do not add referenced vars.
 290         * tree-optimize.c (gate_all_optimizations): Do not execute when not in
 291         SSA form.
 292         (gate_all_early_local_passes): New gate.
 293         (pass_early_local_passes): Use new gate.
 294         (execute_early_local_optimizations): New functions.
 295         (gate_all_early_optimizations): New gate.
 296         (pass_all_early_optimizations): New pass.
 297         (execute_free_datastructures): Free SSA only when initialized.
 298         (gate_init_datastructures): Init only when optimizing.
 299         (tree_lowering_passes): Do early local passes when called late.
 300         * tree-profile.c (do_tree_profiling): Don't profile functions added
 301         late.
 302         (do_early_tree_profiling, pass_early_tree_profile): Kill.
 303         * tree-cfg.c (update_modified_stmts): Do not update when operands are
 304         not active.
 305         * passes.c (init_optimizations_passes): Reorder so we go into SSA
 306         during early_local_passes.
 307         * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
 308
 309
 310 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
 311
 312         * Makefile.in: Update copyright year.
 313
 314 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
 315
 316         * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
 317         in $(lang_checks) and check-consistency targets.
 318
 319 2007-01-02  Jan Hubicka  <jh@suse.cz>
 320
 321         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
 322         Do not add referenced vars.
 323         * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
 324         are not active.
 325         * passes.c (init_optimization_passes): Put mudflap_2 after
 326         free_datastructures.
 327
 328 2007-01-02  Jan Hubicka  <jh@suse.cz>
 329
 330         * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
 331         Set NOTHROW flag on call statements proved to be nothrow.
 332         Update statement of local calls so new pure/const functions are
 333         updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
 334         goto receivers.
 335         (tree_rest_of_compilation): Register hooks and initialize bitmap
 336         early. Do not set after_inlining flag.
 337
 338 2007-01-02  Steve Ellcey  <sje@cup.hp.com>
 339
 340         * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
 341         HOST_BITS_PER_LONGLONG
 342
 343 2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>
 344
 345         PR c/19977
 346         * c-typeck.c (store_init_value): Don't emit pedantic overflow
 347         warning for non-static initializers.
 348
 349 2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>
 350
 351         * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
 352         m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
 353         rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
 354         Always use set_unique_reg_note to add REG_EQUAL notes.
 355
 356 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 357
 358         Revert:
 359         2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 360
 361         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 362         * cfgbuild.c (find_basic_blocks): Likewise.
 363         * cfgrtl.c (rtl_create_basic_block): Likewise.
 364         * function.c (temp_slots_at_level): Likewise.
 365         * reg-stack.c (stack_regs_mentioned): Likewise.
 366         * regclass.c (allocate_reg_info): Likewise.
 367         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 368         set_bb_for_stmt, move_block_to_fn): Likewise.
 369         * tree-complex.c (tree_lower_complex): Likewise.
 370         * vec.h (VEC_safe_grow_cleared): New.
 371
 372 2007-01-02  Ian Lance Taylor  <iant@google.com>
 373
 374         * c-common.c (c_common_truthvalue_conversion): When warning about
 375         using an assignment as a truth value, set TREE_NO_WARNING.
 376
 377 2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 378
 379         PR middle-end/7651
 380         * c.opt (Wold-style-declaration): New.
 381         * doc/invoke.texi (C-only Warning Options): New.
 382         (Wold-style-declaration): Document it.
 383         (Wextra): Enabled by -Wextra.
 384         * c-opts.c (c_common_post_options): Enabled by -Wextra.
 385         * c-decl.c (declspecs_add_scspec): Replace -Wextra with
 386         -Wold-style-declaration.
 387
 388 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 389
 390         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 391         * cfgbuild.c (find_basic_blocks): Likewise.
 392         * cfgrtl.c (rtl_create_basic_block): Likewise.
 393         * function.c (temp_slots_at_level): Likewise.
 394         * reg-stack.c (stack_regs_mentioned): Likewise.
 395         * regclass.c (allocate_reg_info): Likewise.
 396         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 397         set_bb_for_stmt, move_block_to_fn): Likewise.
 398         * tree-complex.c (tree_lower_complex): Likewise.
 399         * vec.h (VEC_safe_grow_cleared): New.
 400
 401 2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>
 402
 403         * c-common.c(c_common_nodes_and_builtins): Since variants of
 404         void_type_node get built before it is given a name, we need to
 405         give those variants the name, too.
 406         (complete_array_type): We need to work with the canonical main
 407         type of the array, from which we will build the qualified version.
 408         * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
 409         * print-tree.c (print_node): Display canonical type information
 410         for each type.
 411         * stor-layout.c (layout_type): When we don't know the
 412         alignment of a type for which we're building an array, we end up
 413         guessing wrong, so make the type require structural equality.
 414         * tree.c (make_node_stat): When we build a new type, it is its
 415         own canonical type.
 416         (build_type_attribute_qual_variant): When building an attribute
 417         variant, its canonical type is the non-attribute variant. However,
 418         if the attributes are target-dependent and they differ, we need to
 419         use structural equality checks for this type.
 420         (build_qualified_type): A qualified type is not equivalent to its
 421         unqualified variant; set the canonical type appropriately.
 422         (build_distinct_type_copy): When building a distinct type from
 423         another type, the new type is its own canonical type.
 424         (build_variant_type_copy): When building a new type variant, we
 425         assume that it is equivalent to the original type.
 426         (build_pointer_type_for_mode): When building a pointer type, also
 427         build a canonical type pointer.
 428         (build_reference_type_for_mode): When building a reference type,
 429         also build a canonical type reference.
 430         (build_index_type): When we can't hash an index type (e.g.,
 431         because its maximum value is negative), the index type requires
 432         structural equality tests.
 433         (build_array_type): Build the canonical form of an array type.
 434         (build_function_type): Function types require structural equality,
 435         because they contain default arguments, attributes, etc.
 436         (build_method_type_directly): Ditto for method types.
 437         (build_offset_type): Build the canonical offset type.
 438         (build_complex_type): Build the canonical vector type.
 439         (make_vector_type): Build the canonical vector type.
 440         * tree.h (TYPE_CANONICAL): New.
 441         (TYPE_STRUCTURAL_EQUALITY_P): New.
 442         (SET_TYPE_STRUCTURAL_EQUALITY): New.
 443         (struct tree_type): Added "canonical" field.
 444         * params.h (VERIFY_CANONICAL_TYPES): New.
 445         * doc/c-tree.texi (TYPE_CANONICAL): Document.
 446         (TYPE_STRUCTURAL_EQUALITY_P): Document.
 447         (SET_TYPE_STRUCTURAL_EQUALITY): Document.
 448         * doc/invoke.texi (verify-canonical-types): Document --param
 449         parameter for verifying canonical types.
 450
 451 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 452
 453         * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
 454         powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
 455         powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
 456         powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
 457         tm_file.
 458         * config/rs6000/e500.h: New.
 459         * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
 460         TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
 461         Remove.
 462         * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
 463         TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
 464         TARGET_E500_DOUBLE): Remove.
 465         * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
 466         TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
 467         * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
 468         * config/rs6000/rs6000.c (rs6000_override_options): Use
 469         CHECK_E500_OPTIONS.
 470
 471 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 472
 473         * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
 474         TARGET_E500_DOUBLE), not TARGET_E500, for %y.
 475         (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
 476         rs6000_emit_cmove): Don't check TARGET_E500.
 477         * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
 478         sordered): Don't check TARGET_E500.
 479
 480 2007-01-01  Eric Christopher  <echristo@apple.com>
 481
 482         * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
 483         HARD_REGISTER_NUM_P.
 484
 485 2007-01-01  Roger Sayle  <roger@eyesopen.com>
 486
 487         * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
 488         "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
 489         has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
 490         eq/ne Y".
 491
 492 2007-01-01  Mike Stump  <mrs@apple.com>
 493
 494         * configure.ac: Remove support for building with Apple's gcc-3.1.
 495
 496 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 497
 498         PR middle-end/30311
 499         * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
 500         REG is a hard register.  Do not modify REG before calling
 501         subreg_nregs.
 502         * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
 503         multiple of the size of YMODE for certain lowpart cases.
 504
 505 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 506
 507         PR middle-end/30253
 508         * gimplify (voidify_wrapper_expr): Update for
 509         GIMPLE_MODIFY_STMT.
 510
 511 2007-01-01  Andreas Schwab  <schwab@suse.de>
 512
 513         PR target/29166
 514         * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
 515         save of BR0 in extra_spill_size instead of spill_size.
 516         (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
 517         area.
 518         (ia64_expand_epilogue): Restore BR0 from its new location.
 519
 520 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 521
 522         * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
 523         Use a temporary variable if the left hand side is not a gimple
 524         register.
 525
 526 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 527
 528         * gimplify.c (gimplify_return_expr): Make the temporary variable
 529         for the return expression, a gimple register variable.
 530
 531 2007-01-01  Jan Hubicka  <jh@suse.cz>
 532
 533         * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
 534         INSN_LIST.
 535
 536 2007-01-01  Mike Stump  <mrs@apple.com>
 537
 538         * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
 539         .literal16.
 540         * config/darwin.c (machopic_select_rtx_section): Use
 541         HAVE_GAS_LITERAL16.
 542         (darwin_mergeable_constant_section): Likewise.
 543         * configure: Regenerate.
 544         * config.in: Regenerate.
 545
 546 2007-01-01  Jan Hubicka  <jh@suse.cz>
 547             Andrew Pinski  <pinskia@gmail.com>
 548
 549         * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
 550         before starting IPA passes.