gcc/ChangeLog

   1 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
   2
   3         * c.opt: Add -flax-vector-conversions.
   4         * c-typeck.c (convert_for_assignment): Pass flag to
   5         vector_types_convertible_p to allow emission of note.
   6         (digest_init): Likewise.
   7         * c-opts.c: Handle -flax-vector-conversions.
   8         * c-common.c (flag_lax_vector_conversions): New.
   9         (vector_types_convertible_p): Unless -flax-vector conversions
  10         has been passed, disallow conversions between vectors with
  11         differing numbers of subparts and/or element types.  If such
  12         a conversion is disallowed, possibly emit a note on the first
  13         occasion only to inform the user of -flax-vector-conversions.
  14         The new last argument specifies this.
  15         * c-common.h (flag_lax_vector_conversions): New.
  16         (vector_types_convertible_p): Add extra argument.
  17         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
  18         char_type_node for V*QI type vectors.
  19         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
  20         Update to satisfy new typechecking rules.
  21         * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
  22         C and C++ variants.
  23         * doc/invoke.texi (C Dialect Options): Document
  24         -flax-vector-conversions.
  25
  26 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
  27
  28         PR tree-optimization/29877
  29         * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
  30         a register variable on the RHS to not be replaceable.
  31
  32 2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
  33         * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
  34         * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
  35         const_simm15, const_pow2, const_npow2): Added.
  36         * config/score/misc.md (insv, extv, extzv, movmemsi,
  37         move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
  38         * config/score/score.c (score_address_cost, score_select_cc_mode):
  39         Added.
  40         Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
  41         Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
  42         Update score_print_operand.
  43         * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
  44         Adjust register allocate order and update some macro define.
  45         * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
  46         mdx_block_move_straight, mdx_block_move_loop_head,
  47         mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
  48         mdx_block_move): Added.
  49         (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
  50         mdp_limm): Updated and fix some bug and typo.
  51         * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
  52         (movsf, movdf, doloop_end): Added.
  53
  54 2007-01-08  Kazu Hirata  <kazu@codesourcery.com>
  55
  56         * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
  57         config/arm/thumb2.md: Fix comment typos.
  58         * doc/extend.texi: Fix a typo.
  59
  60 2007-01-07  Eric Christopher  <echristo@apple.com>
  61
  62         * configure.ac: Check for __stack_chk_fail for darwin.
  63         * configure: Regenerate.
  64
  65 2007-01-07  Richard Guenther  <rguenther@suse.de>
  66
  67         * tree-vrp.c (extract_range_from_assert): CSE calls to
  68         compare_values where possible.
  69         (extract_range_from_unary_expr): Likewise.
  70
  71 2007-01-07  Anatoly Sokolov <aesok@post.ru>
  72
  73         * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
  74         * config/avr/avr.c (call_insn_operand): Delete function.
  75         * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
  76         instead of register number. Use predicates.
  77         * config/avr/predicates.md (const0_operand, reg_or_0_operand,
  78         call_insn_operand): Add.
  79
  80 2007-01-06  Jan Hubicka  <jh@suse.cz>
  81
  82         * tree-pass.h (pass_build_cgraph_edges): Declare.
  83         * cgraphunit.c (record_refernece): Move to cgraphbuild.c
  84         (visited_nodes): Remove.
  85         (cgraph_create_edges): Move to cgraphbuild.c; rename to
  86         build_cgrpah_edges; make visited_nodes local.
  87         (cgraph_process_new_functions): DO not call initialize_inline_failed.
  88         (record_references_in_initializer): Move to cgraphbuild.c
  89         (initialize_inline_failed, rebuild_cgraph_edges,
  90         pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
  91         (verify_cgraph_node): Make visited_nodes local.
  92         (cgraph_analyze_function): Do not call cgraph_create_edges and
  93         initialize_inline_failed.
  94         (cgraph_expand_function): Do not call cgraph_lower_function;
  95         assert that function is already lowered.
  96         * Makefile.in (cgraphbuild.o): New.
  97         * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
  98         at the end of lowering passes.
  99
 100 2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>
 101
 102         * ifcvt.c (cond_move_convert_if_block): New function, code
 103         factored out from...
 104         (cond_move_process_if_block): ...here.  Call the new function
 105         on the THEN and ELSE blocks.
 106         (merge_if_block): Do not copy global_live_at_end, merge_blocks
 107         already takes care of this.
 108
 109 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 110
 111         PR c/19978
 112         * tree.h (TREE_OVERFLOW_P): New.
 113         * c-typeck.c (parser_build_unary_op): Warn only if result
 114         overflowed and operands did not.
 115         (parser_build_binary_op): Likewise.
 116         (convert_for_assignment): Remove redundant overflow_warning.
 117         * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.
 118
 119 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 120
 121         * c-typeck.c (store_init_value): Split over two lines to follow
 122         the GNU coding style.
 123
 124 2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>
 125
 126         * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
 127         __GXX_EXPERIMENTAL_CXX0X__.
 128         * doc/cpp.texi: Same.
 129
 130 2007-01-05  Richard Guenther  <rguenther@suse.de>
 131
 132         PR middle-end/27826
 133         * tree.c (get_narrower): Do not construct COMPONENT_REFs
 134         with mismatched types.  Instead explicitly build a
 135         conversion NOP_EXPR.
 136
 137 2007-01-05  Ian Lance Taylor  <iant@google.com>
 138
 139         * c-common.c (decl_with_nonnull_addr_p): New function.
 140         (c_common_truthvalue_conversion): Call it.
 141         * c-typeck.c (build_binary_op): Likewise.
 142         * c-common.h (decl_with_nonnull_addr_p): Declare.
 143
 144 2007-01-05  Jakub Jelinek  <jakub@redhat.com>
 145
 146         PR c/30360
 147         * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
 148         denom against 0.0.
 149
 150 2007-01-05  Joel Brobecker  <brobecker@adacore.com>
 151
 152         * doc/install.texi (Final install): Document the fact that
 153         the GNAT runtime should not be stripped.
 154
 155 2007-01-04  Jan Hubicka  <jh@suse.cz>
 156
 157         * tree-inline.c (fold_marked_statements): Update operand caches
 158         and EH after folding
 159
 160 2007-01-04  Ian Lance Taylor  <iant@google.com>
 161
 162         * c-common.c (check_function_nonnull): Whitespace fix.
 163
 164 2007-01-04  Jan Hubicka  <jh@suse.cz>
 165
 166         * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
 167         comitted older version of patch.
 168         (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
 169         function, celanup cfg and collect garbage.
 170
 171 2007-01-04  Mike Stump  <mrs@apple.com>
 172
 173         * Makefile.in (mostlyclean): Don't remove libgcc anymore.
 174         (clean): Likewise.
 175
 176 2007-01-04  Eric Christopher  <echristo@apple.com>
 177
 178         * libgcc2.c (__bswapsi2): Use SItype.
 179         (__bswapdi2): Use DItype.
 180         * libgcc2.h: Update for above.
 181
 182 2007-01-04  Paul Brook  <paul@codesourcery.com>
 183
 184         * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
 185         mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
 186         mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
 187         umulsidi3, umulsidi3adddi, smulsi3_highpart,
 188         umulsi3_highpart): Make conditional on !arm_arch6.
 189         (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
 190         mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
 191         mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
 192         umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
 193         umulsi3_highpart_v6): New insns.
 194
 195 2007-01-04  Roger Sayle  <roger@eyesopen.com>
 196
 197         * fold-const.c (fold_convert): When casting an expression to void,
 198         fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
 199         have a type.  Instead of attempting to build a NOP_EXPR, return
 200         these "special" trees directly.
 201
 202 2007-01-04  Joseph Myers  <joseph@codesourcery.com>
 203
 204         * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
 205         MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
 206         rs6000_cost->fp not 0 as adjustment for outer NEG.
 207
 208 2007-01-04  Jan Hubicka  <jh@suse.cz>
 209
 210         * cgraph.c (cgraph_release_function_body): New function.
 211         (cgraph_remove_node): Use it.
 212         * cgraph.h (cgraph_release_function_body): Declare.
 213         * cgraphunit.c (cgraph_expand_function): Use it.
 214         * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
 215         * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
 216         is initialized and while compilation of other function is running.
 217         * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
 218         statement CFG annotations from here to ...
 219         * tree-cfg.c (delete_tree_cfg_annotations): ... here.
 220
 221 2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>
 222
 223         * cfgloop.h (enum li_flags): Make the constants powers of two.
 224
 225 2007-01-04  Jan Hubicka  <jh@suse.cz>
 226
 227         * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
 228         set.
 229         (fold_marked_statements): New function.
 230         (optimize_inline_calls, tree_function_versioning): Fold new statements.
 231         * tree-inline.h (copy_body_data): Add statements_to_fold.
 232
 233 2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>
 234
 235         * config.gcc: Mention libgcc/config.host.
 236         * Makefile.in: Update comments mentioning libgcc.
 237         (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
 238         (all.cross, start.encap, rest.encap, rest.cross): Update
 239         dependencies for libgcc move.
 240         (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
 241         (clean-target, clean-target-libgcc): Delete.
 242         (srcdirify, GCC_EXTRA_PARTS): New macros.
 243         (libgcc-support, libgcc.mvars): New rules.
 244         (distclean): Remove mention of mklibgcc.
 245         (install): Don't reference INSTALL_LIBGCC.
 246         (install-common): Don't reference EXTRA_PARTS.
 247         (install-libgcc, install-multilib): Delete rules.
 248         * mklibgcc.in: Delete file.
 249         * doc/configfiles.texi: Don't mention mklibgcc.
 250
 251         * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
 252         * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
 253         * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
 254         * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
 255         (mklibgcc, ldblspecs): Likewise.
 256
 257         * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
 258         (posixpre.def): Use $(T).
 259         (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
 260         (SHLIB_SRC, SHLIB_INSTALL): Delete.
 261         (SHLIB_LINK): Make dummy.
 262         * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.
 263
 264         * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.
 265
 266         * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
 267         * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
 268         config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
 269         config/rs6000/t-newas, config/sparc/t-elf: Likewise.
 270
 271         * configure.ac (all_outputs): Remove mklibgcc.
 272         * configure: Regenerated.
 273
 274 2007-01-03  Josh Conner  <jconner@apple.com>
 275
 276         PR middle-end/29683
 277         * calls.c (compute_argument_addresses): Set stack and stack_slot
 278         for partial args, too.
 279         (store_one_arg): Use locate.size.constant for the size when
 280         generating a save_area.
 281
 282 2007-01-03  Robert Kennedy <jimbob@google.com>
 283
 284         * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
 285         whose definitions are deleted due to basic block merging.
 286
 287 2007-01-03  Paul Brook  <paul@codesourcery.com>
 288
 289         PR target/16634
 290         * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
 291         functions.
 292         (use_return_insn): Return 0 for Thumb interrupt functions.
 293         (print_multi_reg): Add rfe argument for IRQ returns.
 294         (arm_output_epilogue): Pop interrupt return address directly into PC.
 295         (arm_expand_prologue): Only adjust IRQ return address in Arm mode.
 296
 297 2007-01-03  Paul Brook  <paul@codesourcery.com>
 298
 299         Merge from sourcerygxx-4_1.
 300         * config/arm/thumb2.md: New file.
 301         * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
 302         Thumb-2.
 303         * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
 304         * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
 305         (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
 306         * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
 307         tables.
 308         (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
 309         * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
 310         comptibility.
 311         * config/arm/ieee754-sf.S: Ditto.
 312         * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
 313         (thumb1_base_register_rtx_p): ... to this.
 314         (thumb_index_register_rtx_p): Rename...
 315         (thumb1_index_register_rtx_p): ... to this.
 316         (thumb_output_function_prologue): Rename...
 317         (thumb1_output_function_prologue): ... to this.
 318         (thumb_legitimate_address_p): Rename...
 319         (thumb1_legitimate_address_p): ... to this.
 320         (thumb_rtx_costs): Rename...
 321         (thumb1_rtx_costs): ... to this.
 322         (thumb_compute_save_reg_mask): Rename...
 323         (thumb1_compute_save_reg_mask): ... to this.
 324         (thumb_final_prescan_insn): Rename...
 325         (thumb1_final_prescan_insn): ... to this.
 326         (thumb_expand_epilogue): Rename...
 327         (thumb1_expand_epilogue): ... to this.
 328         (arm_unwind_emit_stm): Rename...
 329         (arm_unwind_emit_sequence): ... to this.
 330         (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
 331         thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
 332         thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
 333         arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
 334         thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
 335         thumb2_output_casesi): New functions.
 336         (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
 337         (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
 338         FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
 339         THUMB2_WORK_REGS): Define.
 340         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
 341         arm_condexec_mask, arm_condexec_masklen)): New variables.
 342         (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
 343         (arm_override_options): Check new CPU capabilities.
 344         Set new architecture flag variables.
 345         (arm_isr_value): Handle v7m interrupt functions.
 346         (user_return_insn): Return 0 for v7m interrupt functions.  Handle
 347         Thumb-2.
 348         (const_ok_for_arm): Handle Thumb-2 constants.
 349         (arm_gen_constant): Ditto.  Use movw when available.
 350         (arm_function_ok_for_sibcall): Return false for v7m interrupt
 351         functions.
 352         (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
 353         (thumb_find_work_register, arm_load_pic_register,
 354         legitimize_tls_address, arm_address_cost, load_multiple_sequence,
 355         emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
 356         print_multi_reg, output_mov_long_double_fpa_from_arm,
 357         output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
 358         output_mov_double_fpa_from_arm, output_move_double,
 359         arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
 360         output_return_instruction, arm_output_function_prologue,
 361         arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
 362         arm_output_mi_thunk, thumb_set_return_address): Ditto.
 363         (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
 364         (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
 365         (arithmetic_instr, shift_op): Use arm_shift_nmem.
 366         (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
 367         '!' and 'L'.
 368         (arm_final_prescan_insn): Use extract_constrain_insn_cached.
 369         (thumb_expand_prologue): Use thumb_set_frame_pointer.
 370         (arm_file_start): Output directive for unified syntax.
 371         (arm_unwind_emit_set): Handle stack alignment instruction.
 372         * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
 373         Add v6t2, v7, v7a, v7r and v7m.
 374         (RETLDM): Add Thumb-2 code.
 375         (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
 376         * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
 377         (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
 378         TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
 379         THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
 380         ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
 381         THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
 382         CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
 383         ADJUST_INSN_LENGTH): Define.
 384         (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
 385         STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
 386         BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
 387         PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
 388         SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
 389         TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
 390         HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
 391         HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
 392         REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
 393         REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
 394         LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
 395         GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
 396         ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
 397         FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
 398         PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
 399         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
 400         * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
 401         cortex-m3.
 402         * config/arm/arm-tune.md: Regenerate.
 403         * config/arm/arm-protos.h: Update prototypes.
 404         * config/arm/vfp.md: Enable patterns for Thumb-2.
 405         (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
 406         (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
 407         (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
 408         thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
 409         * config/arm/libunwind.S: Add Thumb-2 code.
 410         * config/arm/constraints.md: Update include Thumb-2.
 411         * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
 412         * config/arm/ieee754-df.S: Ditto.
 413         * config/arm/bpabi.S: Ditto.
 414         * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
 415         * config/arm/predicates.md (low_register_operand,
 416         low_reg_or_int_operand, thumb_16bit_operator): New.
 417         (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
 418         (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
 419         * config/arm/t-arm-elf: Add armv7 multilib.
 420         * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
 421         Include thumb2.md.
 422         (UNSPEC_STACK_ALIGN, ce_count): New.
 423         (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
 424         arm_zero_extendsidi2, arm_zero_extendqidi2): New
 425         insns/expanders.
 426         * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
 427         (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
 428         thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
 429         * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
 430         (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
 431         thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
 432         insns.
 433         * doc/extend.texi: Document ARMv7-M interrupt functions.
 434         * doc/invoke.texi: Document Thumb-2 new cores+architectures.
 435
 436 2007-01-03  Jakub Jelinek  <jakub@redhat.com>
 437
 438         * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
 439         (struct _Unwind_Context): Rename args_size to flags, remove
 440         signal_frame field, add a new args_size field and version field.
 441         (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
 442         _Unwind_IsExtendedContext): New inline functions.
 443         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
 444         Assume by_value array is only present if _Unwind_IsExtendedContext.
 445         (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
 446         _Unwind_IsSignalFrame.
 447         (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
 448         (uw_update_context_1): Use _Unwind_SetSignalFrame.
 449         (uw_init_context_1): Initialize context->flags to
 450         EXTENDED_CONTEXT_BIT.
 451         * config/rs6000/linux-unwind.h (frob_update_context): Use
 452         _Unwind_SetSignalFrame.
 453
 454 2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 455
 456         PR middle-end/30353
 457         * gimplify.c (gimplify_modify_expr_complex_part): Move below
 458         tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
 459         the value.
 460
 461 2007-01-03  Kazu Hirata  <kazu@codesourcery.com>
 462
 463         * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
 464         REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
 465         RET, AT_SP): Remove.
 466         * config/i386/i386.md (*sse_prologue_save_insn): Use return
 467         instead of RET.
 468
 469         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 470         * cfgbuild.c (find_basic_blocks): Likewise.
 471         * cfgrtl.c (rtl_create_basic_block): Likewise.
 472         * function.c (temp_slots_at_level): Likewise.
 473         * reg-stack.c (stack_regs_mentioned): Likewise.
 474         * regclass.c (allocate_reg_info): Likewise.
 475         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 476         set_bb_for_stmt, move_block_to_fn): Likewise.
 477         * tree-complex.c (tree_lower_complex): Likewise.
 478         * vec.h (VEC_safe_grow_cleared): New.
 479
 480         * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.
 481
 482 2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>
 483
 484         * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
 485         * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
 486         to loop_version.
 487         * cfgloopmanip.c (scale_loop_frequencies): Export.
 488         (loopify): Scale the frequencies by prescribed coefficients.
 489         (set_zero_probability): New function.
 490         (duplicate_loop_to_header_edge): Improve updating of frequencies.
 491         (lv_adjust_loop_entry_edge, loop_version): Set probabilities
 492         and frequencies according to arguments.
 493         * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
 494         correctly.
 495         * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
 496         * modulo-sched.c (sms_schedule): Set probabilities for entering
 497         versioned loop correctly.
 498         * tree-vect-transform.c (vect_transform_loop): Ditto.
 499         * cfgloop.h (loopify, loop_version): Declaration changed.
 500         (scale_loop_frequencies): Declared.
 501
 502 2007-01-02  Jan Hubicka  <jh@suse.cz>
 503
 504         * cgraph.c: Include tree-flow.h
 505         (cgraph_add_new-function): Handle IPA_SSA mode; execute
 506         early_local_passes.
 507         * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
 508         * tree-pass.h (pass_all_early_optimizations): Declare.
 509         * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
 510         early_local_passes.
 511         (cgraph_analyze_function): Do early_local_passes.
 512         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
 513         Do not add referenced vars.
 514         * tree-optimize.c (gate_all_optimizations): Do not execute when not in
 515         SSA form.
 516         (gate_all_early_local_passes): New gate.
 517         (pass_early_local_passes): Use new gate.
 518         (execute_early_local_optimizations): New functions.
 519         (gate_all_early_optimizations): New gate.
 520         (pass_all_early_optimizations): New pass.
 521         (execute_free_datastructures): Free SSA only when initialized.
 522         (gate_init_datastructures): Init only when optimizing.
 523         (tree_lowering_passes): Do early local passes when called late.
 524         * tree-profile.c (do_tree_profiling): Don't profile functions added
 525         late.
 526         (do_early_tree_profiling, pass_early_tree_profile): Kill.
 527         * tree-cfg.c (update_modified_stmts): Do not update when operands are
 528         not active.
 529         * passes.c (init_optimizations_passes): Reorder so we go into SSA
 530         during early_local_passes.
 531         * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
 532
 533
 534 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
 535
 536         * Makefile.in: Update copyright year.
 537
 538 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
 539
 540         * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
 541         in $(lang_checks) and check-consistency targets.
 542
 543 2007-01-02  Jan Hubicka  <jh@suse.cz>
 544
 545         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
 546         Do not add referenced vars.
 547         * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
 548         are not active.
 549         * passes.c (init_optimization_passes): Put mudflap_2 after
 550         free_datastructures.
 551
 552 2007-01-02  Jan Hubicka  <jh@suse.cz>
 553
 554         * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
 555         Set NOTHROW flag on call statements proved to be nothrow.
 556         Update statement of local calls so new pure/const functions are
 557         updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
 558         goto receivers.
 559         (tree_rest_of_compilation): Register hooks and initialize bitmap
 560         early. Do not set after_inlining flag.
 561
 562 2007-01-02  Steve Ellcey  <sje@cup.hp.com>
 563
 564         * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
 565         HOST_BITS_PER_LONGLONG
 566
 567 2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>
 568
 569         PR c/19977
 570         * c-typeck.c (store_init_value): Don't emit pedantic overflow
 571         warning for non-static initializers.
 572
 573 2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>
 574
 575         * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
 576         m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
 577         rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
 578         Always use set_unique_reg_note to add REG_EQUAL notes.
 579
 580 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 581
 582         Revert:
 583         2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 584
 585         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 586         * cfgbuild.c (find_basic_blocks): Likewise.
 587         * cfgrtl.c (rtl_create_basic_block): Likewise.
 588         * function.c (temp_slots_at_level): Likewise.
 589         * reg-stack.c (stack_regs_mentioned): Likewise.
 590         * regclass.c (allocate_reg_info): Likewise.
 591         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 592         set_bb_for_stmt, move_block_to_fn): Likewise.
 593         * tree-complex.c (tree_lower_complex): Likewise.
 594         * vec.h (VEC_safe_grow_cleared): New.
 595
 596 2007-01-02  Ian Lance Taylor  <iant@google.com>
 597
 598         * c-common.c (c_common_truthvalue_conversion): When warning about
 599         using an assignment as a truth value, set TREE_NO_WARNING.
 600
 601 2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 602
 603         PR middle-end/7651
 604         * c.opt (Wold-style-declaration): New.
 605         * doc/invoke.texi (C-only Warning Options): New.
 606         (Wold-style-declaration): Document it.
 607         (Wextra): Enabled by -Wextra.
 608         * c-opts.c (c_common_post_options): Enabled by -Wextra.
 609         * c-decl.c (declspecs_add_scspec): Replace -Wextra with
 610         -Wold-style-declaration.
 611
 612 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 613
 614         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 615         * cfgbuild.c (find_basic_blocks): Likewise.
 616         * cfgrtl.c (rtl_create_basic_block): Likewise.
 617         * function.c (temp_slots_at_level): Likewise.
 618         * reg-stack.c (stack_regs_mentioned): Likewise.
 619         * regclass.c (allocate_reg_info): Likewise.
 620         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 621         set_bb_for_stmt, move_block_to_fn): Likewise.
 622         * tree-complex.c (tree_lower_complex): Likewise.
 623         * vec.h (VEC_safe_grow_cleared): New.
 624
 625 2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>
 626
 627         * c-common.c(c_common_nodes_and_builtins): Since variants of
 628         void_type_node get built before it is given a name, we need to
 629         give those variants the name, too.
 630         (complete_array_type): We need to work with the canonical main
 631         type of the array, from which we will build the qualified version.
 632         * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
 633         * print-tree.c (print_node): Display canonical type information
 634         for each type.
 635         * stor-layout.c (layout_type): When we don't know the
 636         alignment of a type for which we're building an array, we end up
 637         guessing wrong, so make the type require structural equality.
 638         * tree.c (make_node_stat): When we build a new type, it is its
 639         own canonical type.
 640         (build_type_attribute_qual_variant): When building an attribute
 641         variant, its canonical type is the non-attribute variant. However,
 642         if the attributes are target-dependent and they differ, we need to
 643         use structural equality checks for this type.
 644         (build_qualified_type): A qualified type is not equivalent to its
 645         unqualified variant; set the canonical type appropriately.
 646         (build_distinct_type_copy): When building a distinct type from
 647         another type, the new type is its own canonical type.
 648         (build_variant_type_copy): When building a new type variant, we
 649         assume that it is equivalent to the original type.
 650         (build_pointer_type_for_mode): When building a pointer type, also
 651         build a canonical type pointer.
 652         (build_reference_type_for_mode): When building a reference type,
 653         also build a canonical type reference.
 654         (build_index_type): When we can't hash an index type (e.g.,
 655         because its maximum value is negative), the index type requires
 656         structural equality tests.
 657         (build_array_type): Build the canonical form of an array type.
 658         (build_function_type): Function types require structural equality,
 659         because they contain default arguments, attributes, etc.
 660         (build_method_type_directly): Ditto for method types.
 661         (build_offset_type): Build the canonical offset type.
 662         (build_complex_type): Build the canonical vector type.
 663         (make_vector_type): Build the canonical vector type.
 664         * tree.h (TYPE_CANONICAL): New.
 665         (TYPE_STRUCTURAL_EQUALITY_P): New.
 666         (SET_TYPE_STRUCTURAL_EQUALITY): New.
 667         (struct tree_type): Added "canonical" field.
 668         * params.h (VERIFY_CANONICAL_TYPES): New.
 669         * doc/c-tree.texi (TYPE_CANONICAL): Document.
 670         (TYPE_STRUCTURAL_EQUALITY_P): Document.
 671         (SET_TYPE_STRUCTURAL_EQUALITY): Document.
 672         * doc/invoke.texi (verify-canonical-types): Document --param
 673         parameter for verifying canonical types.
 674
 675 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 676
 677         * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
 678         powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
 679         powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
 680         powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
 681         tm_file.
 682         * config/rs6000/e500.h: New.
 683         * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
 684         TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
 685         Remove.
 686         * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
 687         TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
 688         TARGET_E500_DOUBLE): Remove.
 689         * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
 690         TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
 691         * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
 692         * config/rs6000/rs6000.c (rs6000_override_options): Use
 693         CHECK_E500_OPTIONS.
 694
 695 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 696
 697         * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
 698         TARGET_E500_DOUBLE), not TARGET_E500, for %y.
 699         (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
 700         rs6000_emit_cmove): Don't check TARGET_E500.
 701         * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
 702         sordered): Don't check TARGET_E500.
 703
 704 2007-01-01  Eric Christopher  <echristo@apple.com>
 705
 706         * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
 707         HARD_REGISTER_NUM_P.
 708
 709 2007-01-01  Roger Sayle  <roger@eyesopen.com>
 710
 711         * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
 712         "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
 713         has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
 714         eq/ne Y".
 715
 716 2007-01-01  Mike Stump  <mrs@apple.com>
 717
 718         * configure.ac: Remove support for building with Apple's gcc-3.1.
 719
 720 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 721
 722         PR middle-end/30311
 723         * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
 724         REG is a hard register.  Do not modify REG before calling
 725         subreg_nregs.
 726         * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
 727         multiple of the size of YMODE for certain lowpart cases.
 728
 729 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 730
 731         PR middle-end/30253
 732         * gimplify (voidify_wrapper_expr): Update for
 733         GIMPLE_MODIFY_STMT.
 734
 735 2007-01-01  Andreas Schwab  <schwab@suse.de>
 736
 737         PR target/29166
 738         * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
 739         save of BR0 in extra_spill_size instead of spill_size.
 740         (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
 741         area.
 742         (ia64_expand_epilogue): Restore BR0 from its new location.
 743
 744 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 745
 746         * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
 747         Use a temporary variable if the left hand side is not a gimple
 748         register.
 749
 750 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 751
 752         * gimplify.c (gimplify_return_expr): Make the temporary variable
 753         for the return expression, a gimple register variable.
 754
 755 2007-01-01  Jan Hubicka  <jh@suse.cz>
 756
 757         * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
 758         INSN_LIST.
 759
 760 2007-01-01  Mike Stump  <mrs@apple.com>
 761
 762         * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
 763         .literal16.
 764         * config/darwin.c (machopic_select_rtx_section): Use
 765         HAVE_GAS_LITERAL16.
 766         (darwin_mergeable_constant_section): Likewise.
 767         * configure: Regenerate.
 768         * config.in: Regenerate.
 769
 770 2007-01-01  Jan Hubicka  <jh@suse.cz>
 771             Andrew Pinski  <pinskia@gmail.com>
 772
 773         * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
 774         before starting IPA passes.