+2007-01-04 Mike Stump <mrs@apple.com>
+
+ * Makefile.in (mostlyclean): Don't remove libgcc anymore.
+ (clean): Likewise.
+
+2007-01-04 Eric Christopher <echristo@apple.com>
+
+ * libgcc2.c (__bswapsi2): Use SItype.
+ (__bswapdi2): Use DItype.
+ * libgcc2.h: Update for above.
+
+2007-01-04 Paul Brook <paul@codesourcery.com>
+
+ * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
+ mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
+ mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
+ umulsidi3, umulsidi3adddi, smulsi3_highpart,
+ umulsi3_highpart): Make conditional on !arm_arch6.
+ (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
+ mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
+ mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
+ umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
+ umulsi3_highpart_v6): New insns.
+
+2007-01-04 Roger Sayle <roger@eyesopen.com>
+
+ * fold-const.c (fold_convert): When casting an expression to void,
+ fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
+ have a type. Instead of attempting to build a NOP_EXPR, return
+ these "special" trees directly.
+
+2007-01-04 Joseph Myers <joseph@codesourcery.com>
+
+ * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
+ MULT inside MINUS as either argument. Use rs6000_cost->dmul -
+ rs6000_cost->fp not 0 as adjustment for outer NEG.
+
+2007-01-04 Jan Hubicka <jh@suse.cz>
+
+ * cgraph.c (cgraph_release_function_body): New function.
+ (cgraph_remove_node): Use it.
+ * cgraph.h (cgraph_release_function_body): Declare.
+ * cgraphunit.c (cgraph_expand_function): Use it.
+ * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
+ * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
+ is initialized and while compilation of other function is running.
+ * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
+ statement CFG annotations from here to ...
+ * tree-cfg.c (delete_tree_cfg_annotations): ... here.
+
+2007-01-04 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * cfgloop.h (enum li_flags): Make the constants powers of two.
+
+2007-01-04 Jan Hubicka <jh@suse.cz>
+
+ * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
+ set.
+ (fold_marked_statements): New function.
+ (optimize_inline_calls, tree_function_versioning): Fold new statements.
+ * tree-inline.h (copy_body_data): Add statements_to_fold.
+
+2007-01-03 Daniel Jacobowitz <dan@codesourcery.com>
+
+ * config.gcc: Mention libgcc/config.host.
+ * Makefile.in: Update comments mentioning libgcc.
+ (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
+ (all.cross, start.encap, rest.encap, rest.cross): Update
+ dependencies for libgcc move.
+ (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
+ (clean-target, clean-target-libgcc): Delete.
+ (srcdirify, GCC_EXTRA_PARTS): New macros.
+ (libgcc-support, libgcc.mvars): New rules.
+ (distclean): Remove mention of mklibgcc.
+ (install): Don't reference INSTALL_LIBGCC.
+ (install-common): Don't reference EXTRA_PARTS.
+ (install-libgcc, install-multilib): Delete rules.
+ * mklibgcc.in: Delete file.
+ * doc/configfiles.texi: Don't mention mklibgcc.
+
+ * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
+ * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
+ * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
+ * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
+ (mklibgcc, ldblspecs): Likewise.
+
+ * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
+ (posixpre.def): Use $(T).
+ (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
+ (SHLIB_SRC, SHLIB_INSTALL): Delete.
+ (SHLIB_LINK): Make dummy.
+ * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.
+
+ * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.
+
+ * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
+ * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
+ config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
+ config/rs6000/t-newas, config/sparc/t-elf: Likewise.
+
+ * configure.ac (all_outputs): Remove mklibgcc.
+ * configure: Regenerated.
+
+2007-01-03 Josh Conner <jconner@apple.com>
+
+ PR middle-end/29683
+ * calls.c (compute_argument_addresses): Set stack and stack_slot
+ for partial args, too.
+ (store_one_arg): Use locate.size.constant for the size when
+ generating a save_area.
+
+2007-01-03 Robert Kennedy <jimbob@google.com>
+
+ * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
+ whose definitions are deleted due to basic block merging.
+
+2007-01-03 Paul Brook <paul@codesourcery.com>
+
+ PR target/16634
+ * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
+ functions.
+ (use_return_insn): Return 0 for Thumb interrupt functions.
+ (print_multi_reg): Add rfe argument for IRQ returns.
+ (arm_output_epilogue): Pop interrupt return address directly into PC.
+ (arm_expand_prologue): Only adjust IRQ return address in Arm mode.
+
+2007-01-03 Paul Brook <paul@codesourcery.com>
+
+ Merge from sourcerygxx-4_1.
+ * config/arm/thumb2.md: New file.
+ * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
+ Thumb-2.
+ * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
+ * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
+ (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
+ * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
+ tables.
+ (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
+ * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
+ comptibility.
+ * config/arm/ieee754-sf.S: Ditto.
+ * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
+ (thumb1_base_register_rtx_p): ... to this.
+ (thumb_index_register_rtx_p): Rename...
+ (thumb1_index_register_rtx_p): ... to this.
+ (thumb_output_function_prologue): Rename...
+ (thumb1_output_function_prologue): ... to this.
+ (thumb_legitimate_address_p): Rename...
+ (thumb1_legitimate_address_p): ... to this.
+ (thumb_rtx_costs): Rename...
+ (thumb1_rtx_costs): ... to this.
+ (thumb_compute_save_reg_mask): Rename...
+ (thumb1_compute_save_reg_mask): ... to this.
+ (thumb_final_prescan_insn): Rename...
+ (thumb1_final_prescan_insn): ... to this.
+ (thumb_expand_epilogue): Rename...
+ (thumb1_expand_epilogue): ... to this.
+ (arm_unwind_emit_stm): Rename...
+ (arm_unwind_emit_sequence): ... to this.
+ (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
+ thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
+ thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
+ arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
+ thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
+ thumb2_output_casesi): New functions.
+ (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
+ (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
+ FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
+ THUMB2_WORK_REGS): Define.
+ (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
+ arm_condexec_mask, arm_condexec_masklen)): New variables.
+ (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
+ (arm_override_options): Check new CPU capabilities.
+ Set new architecture flag variables.
+ (arm_isr_value): Handle v7m interrupt functions.
+ (user_return_insn): Return 0 for v7m interrupt functions. Handle
+ Thumb-2.
+ (const_ok_for_arm): Handle Thumb-2 constants.
+ (arm_gen_constant): Ditto. Use movw when available.
+ (arm_function_ok_for_sibcall): Return false for v7m interrupt
+ functions.
+ (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
+ (thumb_find_work_register, arm_load_pic_register,
+ legitimize_tls_address, arm_address_cost, load_multiple_sequence,
+ emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
+ print_multi_reg, output_mov_long_double_fpa_from_arm,
+ output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
+ output_mov_double_fpa_from_arm, output_move_double,
+ arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
+ output_return_instruction, arm_output_function_prologue,
+ arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
+ arm_output_mi_thunk, thumb_set_return_address): Ditto.
+ (arm_expand_prologue): Handle Thumb-2. Use arm_save_coproc_regs.
+ (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
+ (arithmetic_instr, shift_op): Use arm_shift_nmem.
+ (arm_print_operand): Use arm_print_condition. Handle '(', ')', '.',
+ '!' and 'L'.
+ (arm_final_prescan_insn): Use extract_constrain_insn_cached.
+ (thumb_expand_prologue): Use thumb_set_frame_pointer.
+ (arm_file_start): Output directive for unified syntax.
+ (arm_unwind_emit_set): Handle stack alignment instruction.
+ * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
+ Add v6t2, v7, v7a, v7r and v7m.
+ (RETLDM): Add Thumb-2 code.
+ (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
+ * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
+ (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
+ TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
+ THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
+ ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
+ THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
+ CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
+ ADJUST_INSN_LENGTH): Define.
+ (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
+ STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
+ BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
+ PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
+ SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
+ TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
+ HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
+ HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
+ REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
+ REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
+ LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
+ GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
+ ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
+ FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
+ PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
+ (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
+ * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
+ cortex-m3.
+ * config/arm/arm-tune.md: Regenerate.
+ * config/arm/arm-protos.h: Update prototypes.
+ * config/arm/vfp.md: Enable patterns for Thumb-2.
+ (arm_movsi_vfp): Add movw alternative. Use output_move_vfp.
+ (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
+ (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
+ thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
+ * config/arm/libunwind.S: Add Thumb-2 code.
+ * config/arm/constraints.md: Update include Thumb-2.
+ * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
+ * config/arm/ieee754-df.S: Ditto.
+ * config/arm/bpabi.S: Ditto.
+ * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
+ * config/arm/predicates.md (low_register_operand,
+ low_reg_or_int_operand, thumb_16bit_operator): New.
+ (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
+ (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
+ * config/arm/t-arm-elf: Add armv7 multilib.
+ * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
+ Include thumb2.md.
+ (UNSPEC_STACK_ALIGN, ce_count): New.
+ (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
+ arm_zero_extendsidi2, arm_zero_extendqidi2): New
+ insns/expanders.
+ * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
+ (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
+ thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
+ * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
+ (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
+ thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
+ insns.
+ * doc/extend.texi: Document ARMv7-M interrupt functions.
+ * doc/invoke.texi: Document Thumb-2 new cores+architectures.
+
+2007-01-03 Jakub Jelinek <jakub@redhat.com>
+
+ * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
+ (struct _Unwind_Context): Rename args_size to flags, remove
+ signal_frame field, add a new args_size field and version field.
+ (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
+ _Unwind_IsExtendedContext): New inline functions.
+ (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
+ Assume by_value array is only present if _Unwind_IsExtendedContext.
+ (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
+ _Unwind_IsSignalFrame.
+ (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
+ (uw_update_context_1): Use _Unwind_SetSignalFrame.
+ (uw_init_context_1): Initialize context->flags to
+ EXTENDED_CONTEXT_BIT.
+ * config/rs6000/linux-unwind.h (frob_update_context): Use
+ _Unwind_SetSignalFrame.
+
+2007-01-03 Andrew Pinski <andrew_pinski@playstation.sony.com>
+
+ PR middle-end/30353
+ * gimplify.c (gimplify_modify_expr_complex_part): Move below
+ tree_to_gimple_tuple. Call tree_to_gimple_tuple when we need
+ the value.
+
+2007-01-03 Kazu Hirata <kazu@codesourcery.com>
+
+ * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
+ REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
+ RET, AT_SP): Remove.
+ * config/i386/i386.md (*sse_prologue_save_insn): Use return
+ instead of RET.
+
+ * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
+ * cfgbuild.c (find_basic_blocks): Likewise.
+ * cfgrtl.c (rtl_create_basic_block): Likewise.
+ * function.c (temp_slots_at_level): Likewise.
+ * reg-stack.c (stack_regs_mentioned): Likewise.
+ * regclass.c (allocate_reg_info): Likewise.
+ * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
+ set_bb_for_stmt, move_block_to_fn): Likewise.
+ * tree-complex.c (tree_lower_complex): Likewise.
+ * vec.h (VEC_safe_grow_cleared): New.
+
+ * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.
+
+2007-01-03 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
+ * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
+ to loop_version.
+ * cfgloopmanip.c (scale_loop_frequencies): Export.
+ (loopify): Scale the frequencies by prescribed coefficients.
+ (set_zero_probability): New function.
+ (duplicate_loop_to_header_edge): Improve updating of frequencies.
+ (lv_adjust_loop_entry_edge, loop_version): Set probabilities
+ and frequencies according to arguments.
+ * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
+ correctly.
+ * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
+ * modulo-sched.c (sms_schedule): Set probabilities for entering
+ versioned loop correctly.
+ * tree-vect-transform.c (vect_transform_loop): Ditto.
+ * cfgloop.h (loopify, loop_version): Declaration changed.
+ (scale_loop_frequencies): Declared.
+
+2007-01-02 Jan Hubicka <jh@suse.cz>
+
+ * cgraph.c: Include tree-flow.h
+ (cgraph_add_new-function): Handle IPA_SSA mode; execute
+ early_local_passes.
+ * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
+ * tree-pass.h (pass_all_early_optimizations): Declare.
+ * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
+ early_local_passes.
+ (cgraph_analyze_function): Do early_local_passes.
+ * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
+ Do not add referenced vars.
+ * tree-optimize.c (gate_all_optimizations): Do not execute when not in
+ SSA form.
+ (gate_all_early_local_passes): New gate.
+ (pass_early_local_passes): Use new gate.
+ (execute_early_local_optimizations): New functions.
+ (gate_all_early_optimizations): New gate.
+ (pass_all_early_optimizations): New pass.
+ (execute_free_datastructures): Free SSA only when initialized.
+ (gate_init_datastructures): Init only when optimizing.
+ (tree_lowering_passes): Do early local passes when called late.
+ * tree-profile.c (do_tree_profiling): Don't profile functions added
+ late.
+ (do_early_tree_profiling, pass_early_tree_profile): Kill.
+ * tree-cfg.c (update_modified_stmts): Do not update when operands are
+ not active.
+ * passes.c (init_optimizations_passes): Reorder so we go into SSA
+ during early_local_passes.
+ * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
+
+
+2007-01-02 Carlos O'Donell <carlos@codesourcery.com>
+
+ * Makefile.in: Update copyright year.
+
+2007-01-02 Carlos O'Donell <carlos@codesourcery.com>
+
+ * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
+ in $(lang_checks) and check-consistency targets.
+
+2007-01-02 Jan Hubicka <jh@suse.cz>
+
+ * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
+ Do not add referenced vars.
+ * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
+ are not active.
+ * passes.c (init_optimization_passes): Put mudflap_2 after
+ free_datastructures.
+
+2007-01-02 Jan Hubicka <jh@suse.cz>
+
+ * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
+ Set NOTHROW flag on call statements proved to be nothrow.
+ Update statement of local calls so new pure/const functions are
+ updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
+ goto receivers.
+ (tree_rest_of_compilation): Register hooks and initialize bitmap
+ early. Do not set after_inlining flag.
+
+2007-01-02 Steve Ellcey <sje@cup.hp.com>
+
+ * sbitmap.c (HOST_BITS_PER_LONG_LONG): Change to
+ HOST_BITS_PER_LONGLONG
+
+2007-01-02 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ PR c/19977
+ * c-typeck.c (store_init_value): Don't emit pedantic overflow
+ warning for non-static initializers.
+
+2007-01-02 Steven Bosscher <steven@gcc.gnu.org>
+
+ * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
+ m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
+ rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
+ Always use set_unique_reg_note to add REG_EQUAL notes.
+
+2007-01-02 Kazu Hirata <kazu@codesourcery.com>
+
+ Revert:
+ 2007-01-02 Kazu Hirata <kazu@codesourcery.com>
+
+ * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
+ * cfgbuild.c (find_basic_blocks): Likewise.
+ * cfgrtl.c (rtl_create_basic_block): Likewise.
+ * function.c (temp_slots_at_level): Likewise.
+ * reg-stack.c (stack_regs_mentioned): Likewise.
+ * regclass.c (allocate_reg_info): Likewise.
+ * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
+ set_bb_for_stmt, move_block_to_fn): Likewise.
+ * tree-complex.c (tree_lower_complex): Likewise.
+ * vec.h (VEC_safe_grow_cleared): New.
+
+2007-01-02 Ian Lance Taylor <iant@google.com>
+
+ * c-common.c (c_common_truthvalue_conversion): When warning about
+ using an assignment as a truth value, set TREE_NO_WARNING.
+
+2007-01-02 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ PR middle-end/7651
+ * c.opt (Wold-style-declaration): New.
+ * doc/invoke.texi (C-only Warning Options): New.
+ (Wold-style-declaration): Document it.
+ (Wextra): Enabled by -Wextra.
+ * c-opts.c (c_common_post_options): Enabled by -Wextra.
+ * c-decl.c (declspecs_add_scspec): Replace -Wextra with
+ -Wold-style-declaration.
+
+2007-01-02 Kazu Hirata <kazu@codesourcery.com>
+
+ * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
+ * cfgbuild.c (find_basic_blocks): Likewise.
+ * cfgrtl.c (rtl_create_basic_block): Likewise.
+ * function.c (temp_slots_at_level): Likewise.
+ * reg-stack.c (stack_regs_mentioned): Likewise.
+ * regclass.c (allocate_reg_info): Likewise.
+ * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
+ set_bb_for_stmt, move_block_to_fn): Likewise.
+ * tree-complex.c (tree_lower_complex): Likewise.
+ * vec.h (VEC_safe_grow_cleared): New.
+
+2007-01-02 Douglas Gregor <doug.gregor@gmail.com>
+
+ * c-common.c(c_common_nodes_and_builtins): Since variants of
+ void_type_node get built before it is given a name, we need to
+ give those variants the name, too.
+ (complete_array_type): We need to work with the canonical main
+ type of the array, from which we will build the qualified version.
+ * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
+ * print-tree.c (print_node): Display canonical type information
+ for each type.
+ * stor-layout.c (layout_type): When we don't know the
+ alignment of a type for which we're building an array, we end up
+ guessing wrong, so make the type require structural equality.
+ * tree.c (make_node_stat): When we build a new type, it is its
+ own canonical type.
+ (build_type_attribute_qual_variant): When building an attribute
+ variant, its canonical type is the non-attribute variant. However,
+ if the attributes are target-dependent and they differ, we need to
+ use structural equality checks for this type.
+ (build_qualified_type): A qualified type is not equivalent to its
+ unqualified variant; set the canonical type appropriately.
+ (build_distinct_type_copy): When building a distinct type from
+ another type, the new type is its own canonical type.
+ (build_variant_type_copy): When building a new type variant, we
+ assume that it is equivalent to the original type.
+ (build_pointer_type_for_mode): When building a pointer type, also
+ build a canonical type pointer.
+ (build_reference_type_for_mode): When building a reference type,
+ also build a canonical type reference.
+ (build_index_type): When we can't hash an index type (e.g.,
+ because its maximum value is negative), the index type requires
+ structural equality tests.
+ (build_array_type): Build the canonical form of an array type.
+ (build_function_type): Function types require structural equality,
+ because they contain default arguments, attributes, etc.
+ (build_method_type_directly): Ditto for method types.
+ (build_offset_type): Build the canonical offset type.
+ (build_complex_type): Build the canonical vector type.
+ (make_vector_type): Build the canonical vector type.
+ * tree.h (TYPE_CANONICAL): New.
+ (TYPE_STRUCTURAL_EQUALITY_P): New.
+ (SET_TYPE_STRUCTURAL_EQUALITY): New.
+ (struct tree_type): Added "canonical" field.
+ * params.h (VERIFY_CANONICAL_TYPES): New.
+ * doc/c-tree.texi (TYPE_CANONICAL): Document.
+ (TYPE_STRUCTURAL_EQUALITY_P): Document.
+ (SET_TYPE_STRUCTURAL_EQUALITY): Document.
+ * doc/invoke.texi (verify-canonical-types): Document --param
+ parameter for verifying canonical types.
+
+2007-01-02 Joseph Myers <joseph@codesourcery.com>
+
+ * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
+ powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
+ powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
+ powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
+ tm_file.
+ * config/rs6000/e500.h: New.
+ * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
+ TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
+ Remove.
+ * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
+ TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
+ TARGET_E500_DOUBLE): Remove.
+ * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
+ TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
+ * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
+ * config/rs6000/rs6000.c (rs6000_override_options): Use
+ CHECK_E500_OPTIONS.
+
+2007-01-02 Joseph Myers <joseph@codesourcery.com>
+
+ * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
+ TARGET_E500_DOUBLE), not TARGET_E500, for %y.
+ (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
+ rs6000_emit_cmove): Don't check TARGET_E500.
+ * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
+ sordered): Don't check TARGET_E500.
+
2007-01-01 Eric Christopher <echristo@apple.com>
* config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
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