fixincludes:

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2006-07-10  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

        PR bootstrap/20437
        * Makefile.in (configure): add missing aclocal.m4 and acinclude.m4
        dependencies.

2006-07-08  Matthias Klose  <doko@debian.org>

        * doc/sourcebuild.texi: Fix typo.

2006-07-07  Mike Stump  <mrs@apple.com>

        * toplev.c (process_options): Don't give -ffunction-sections may
        affect debugging warning for Mach-O.

2006-07-07  James E Wilson  <wilson@specifix.com>

        * config/mips/mips.md (cpu): Add sb1a.
        * config/mips/sb1.md: Modify almost all patterns to accept sb1a in
        addition to sb1.  Adjust comments to clarify SB-1A differences from
        SB-1.
        (ir_sb1a_load): New.  Modify bypasses to use it.
        (ir_sb1a_simple_alu): Likewise.
        * config/mips/mips.c (mips_cpu_info_table): Add sb1a.
        (mips_rtx_cost_data): Add PROCESSOR_SB1A support.
        (mips_issue_rate): Add PROCESSOR_SB1A.
        (mips_multipass_dfa_lookahead): Use TUNE_SB1 instead of PROCESSOR_SB1.
        * config/mips/mips.h (processor_type): Add PROCESSOR_SB1A.
        (TARGET_SB1): Add PROCESSOR_SB1A check.
        (TUNE_SB1): Likewise.

        * config/mips/mips-protos.h (mips_store_data_bypass_p): New.
        * config/mips/mips.c (mips_store_data_bypass_p): New.
        * config/mips/sb1.md: Use mips_store_data_bypass_p instead of
        store_data_bypass_p.

2006-07-08  Paul Brook  <paul@codesourcery.com>

        PR target/27991
        * config/m68k/m68k.md: Add r-m patterns for 68881 movxf.

2006-07-07   Richard Guenther  <rguenther@suse.de>

        PR middle-end/28268
        * tree.h (build_one_cst): Declare.
        * tree.c (build_one_cst): New function.
        * tree-ssa-math-opts.c (get_constant_one): Remove.
        (insert_reciprocals): Use build_one_cst.
        * fold-const.c (fold_plusminus_mult): Likewise.

2006-07-07  Roger Sayle  <roger@eyesopen.com>

        * pointer-set.c (pointer_set_destroy): Correct whitespace.
        * cfgloopanal.c (dump_graph): Likewise.
        * dojump.c (discard_pending_stack_adjust): Likewise.
        * fix-header.c (TARGET_EXTRA_INCLUDE, TARGET_EXTRA_PRE_INCLUDES):
        Likewise.
        * alloc-pool.c (dump_alloc_pool_statistics): Likewise.
        * function.c (finalize_block_changes): Likewise.
        * gcc-common.c (ggc_free_overhead, dump_gcc_loc_statistics): Likewise.
        * tree-ssa-dce.c (clear_control_dependence_bitmap): Likewise.
        * rtl.c (dump_rtx_statistics): Likewise.
        * tree-ssa-structalias.c (sort_fieldstack, init_alias_heapvars): 
        Likewise.
        * varray.c (dump_varray_statistics): Likewise.
        * dfp.c (encode_decimal32, decode_decimal32, encode_decimal64,
        decode_decimal64, encode_decimal128, decode_decimal128,
        decimal_real_to_decimal): Likewise.

2006-07-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/28187
        * tree-vrp.c (vrp_operand_equal_p): New function.
        (vrp_bitmap_equal_p): Likewise.
        (update_value_range): Use them to compare old and new
        max and min values.

2006-07-06  Roger Sayle  <roger@eyesopen.com>

        * c-parser.c (c_parser_skip_to_end_of_block_or_statement): Add
        a default case to switch statement to silence compiler warnings.

2006-07-06  Roger Sayle  <roger@eyesopen.com>

        PR target/27968
        * configure.ac (HAVE_AS_IX86_FFREEP): On x86 targets check whether 
        the configured assembler supports the x87's ffreep mnemonic.
        * configure: Regenerate.
        * config.in: Regenerate.

        * config/i386/i386.c (output_387_ffreep): New function.
        (output_fp_compare): Use output_387_ffreep to emit ffreep insns.
        (output_387_reg_move): Likewise.

2006-07-06  Paul Eggert  <eggert@cs.ucla.edu>

        Port to hosts whose 'sort' and 'tail' implementations
        treat operands with leading '+' as file names, as POSIX
        has required since 2001.  However, make sure the code still
        works on pre-POSIX hosts.
        * Makefile.in (slowcompare): Port to POSIX 1003.1-2001,
        which says you should use "tail -c +N" rather than "tail +Nc".
        Fix a bug: the old code incorrectly skipped 15 bytes, not 16.

2006-07-06  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (scev_probably_wraps_p): Fix typo in
        argument name.

2006-07-06  David Edelsohn  <edelsohn@gnu.org>

        PR target/28150
        * config/rs6000/rs6000.c (rs6000_legitimate_address): Do not allow
        PRE_{INC,DEC} of TFmode.

2006-07-06  David Edelsohn  <edelsohn@gnu.org>
            Alan Modra  <amodra@bigpond.net.au>

        PR target/28170
        * config/rs6000/rs6000.c (insvdi_rshift_rlwimi_p): Correct shiftop
        bounds. Simplify.

2006-07-06  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        PR target/28285
        * config/alpha/predicates.md (alpha_swapped_comparison_operator):
        Remove duplicate gtu.

2006-07-05  Jason Merrill  <jason@redhat.com>

        PR c++/13983
        PR c++/17519
        * stor-layout.c (finish_record_layout): Copy TYPE_PACKED to variants.
        * c-common.c (handle_packed_attribute): So don't copy it here.
        * c-decl.c (finish_struct): Don't copy TYPE_ALIGN.

2006-07-05  Mike Stump  <mrs@apple.com>

        * doc/invoke.texi (Invoking G++): Clarify prose for g++.

2006-07-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/26146
        * config.gcc: Check with_cpu for i[34567]86--*-solaris2.1[0-9]*.

2006-07-05  Richard Guenther  <rguenther@suse.de>

        PR target/28158
        * config/i386/i386.md (*negdf2_1): Restrict pattern to
        TARGET_SSE2 targets if using SSE math.
        (*absdf2_1): Likewise.

2006-07-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/28162
        * fold-const.c (fold_binary): For (-A) * (-B) -> A * B
        make sure to convert the operands to the correct type.

2006-07-04  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/28218

        * tree-ssa-math-opts.c (execute_cse_reciprocals): Fix calls
        to calculate and free the dominator information.
            
2006-07-04  Peter O'Gorman  <peter@pogma.com>

        * mklibgcc.in: chmod 644 before ranlib during install.

2006-07-04  Andrew Stubbs <andrew.stubbs@st.com>
            J"orn Rennecke <joern.rennecke@st.com>

        * configure.ac (.eh_frame data check): Use diff -b.

2006-07-04  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR bootstrap/18058
        * Makefile.in (BUILD_RTL): Add build/vec.o.
        (build/gencondmd.o): Filter out -fkeep-inline-functions.
        (build/genextract): Delete.
        (build/genautomata): Likewise.

2006-07-04  Alan Modra  <amodra@bigpond.net.au>

        PR target/28207
        * config/rs6000/rs6000.c (function_arg_boundary): Double-word align
        128-bit IBM long doubles for ABI_V4.

2006-07-03  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (range_in_array_bounds_p): New predicate.
        * tree.h (range_in_array_bounds_p): Declare it.
        * tree-eh.c (tree_could_trap_p) <ARRAY_RANGE_REF>: Use it to
        return a less conservative answer.
        * tree-sra.c (struct sra_elt): Add new pointer field 'groups'
        and flag 'is_group'.
        (IS_ELEMENT_FOR_GROUP): New macro.
        (FOR_EACH_ACTUAL_CHILD): Likewise.
        (next_child_for_group): New helper function.
        (can_completely_scalarize_p): Take into account groups.
        (sra_hash_tree): Handle RANGE_EXPR.
        (sra_elt_eq): Likewise.
        (lookup_element): Be prepared for handling groups.
        (is_valid_const_index): Delete.
        (maybe_lookup_element_for_expr) <ARRAY_REF>: Use in_array_bounds_p
        instead of is_valid_const_index.
        <ARRAY_RANGE_REF>: New case.
        (sra_walk_expr) <ARRAY_REF>: Use in_array_bounds_p instead of
        is_valid_const_index.
        <ARRAY_RANGE_REF>: Do not unconditionally punt.
        (scan_dump): Dump info for groups too.
        (decide_instantiation_1): Likewise.
        (decide_block_copy): Assert that the element is not a group.
        Propagate decision to groups.
        (generate_one_element_ref): Handle RANGE_EXPR.
        (mark_no_warning): Iterate over actual childs.
        (generate_copy_inout): Likewise.
        (generate_element_copy): Likewise.
        (generate_element_zero): Likewise.
        (generate_element_init_1): Likewise.
        (dump_sra_elt_name): Handle RANGE_EXPR.

2006-07-03  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/26251
        * tree-ssa-threadupdate.c (redirection_block_p): New function.
        (thread_block): When optimizing for size refuse to thread jumps
        that would require duplication of blocks other than redirection
        blocks.

2006-07-03  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Fix thinko in previous check-in.
        * configure: Regenerate.

2006-07-03  Paolo Bonzini  <bonzini@gnu.org>

        PR other/27063
        * configure.ac (for lang...): Simplify nesting of conditionals.
        Test subdir_requires for non-enabled languages.  Move processing
        of lang_opt_files and lang_tree_fiels below that test.
        * configure: Regenerate.
        * doc/sourcebuild.texi (Front End Config): Document subdir_requires.

2006-07-01  Martin Michlmayr  <tbm@cyrius.com>

        * doc/gcov.texi (Invoking Gcov): Add a missing word.

2006-06-30  Kazu Hirata  <kazu@codesourcery.com>

        * cfgexpand.c, config/i386/i386.c, genpreds.c, tree-cfg.c: Fix
        comment typos.

2006-06-29  Jason Merrill  <jason@redhat.com>

        PR c++/26905
        PR c++/26612
        PR c++/27000
        PR c++/26984
        PR c++/19134
        * tree.c (build_decl_stat): Don't hande #pragma visibility here.
        * c-common.c (c_determine_visibility): Handle it here.
        * c-decl.c (finish_decl): Call c_determine_visibility for 
        functions, too.
        * flags.h (enum symbol_visibility): Sort from most to least visibility.
        * tree.h: Likewise.
        * varasm.c (default_assemble_visibility): Likewise.
        * c-common.c (handle_visibility_attribute): Complain about trying
        to give visibility to an already defined class, or trying to change
        declared visibility. Always attach the attribute.

        PR c++/26905
        PR c++/21675
        PR c++/17470
        * attribs.c (decl_attributes): Ignore type-in-place attributes
        once the type has been defined.

2006-06-29  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/27428
        * c-lex.c (c_lex_with_flags) <CPP_N_INVALID>: Increment errorcount
        to indicate the cpplib has issued an error message for us.

2006-06-29  Asher Langton  <langton2@llnl.gov>

        PR target/25765
        * config/i386/i386.c (ix86_output_function_epilogue): Don't
        insert a label at the end of an function under Mach-O.
        
2006-06-29  Eric Christopher  <echristo@apple.com>
            Evan Cheng  <evan.cheng@apple.com>

        * predicates.md (vector_all_ones_operand): New.
        (nonimmediate_or_sse_const_operand): Ditto.
        * config/i386/i386-protos.h (standard_sse_constant_opcode): Declare.
        * config/i386/i386.c (standard_sse_constant_opcode): Define.
        (standard_sse_mode_p): Ditto.
        (standard_sse_constant_p): Add case for -1 vector.
        (ix86_expand_vector_move): Try to use.
        * sse.md (*mov<mode>_internal): Use nonimmediate_or_sse_const_operand.
        Call standard_sse_constant_opcode.
        (*movv4sf_internal): Ditto.
        (*movv2df_internal): Ditto.

2006-06-29  Roger Sayle  <roger@eyesopen.com>

        * genpreds.c (write_match_code_switch): Correctly use XSTR instead
        of XEXP to extract the operands of a MATCH_CODE rtx.

2006-06-28  Andrew Pinski  <pinskia@gmail.com>

        * tree.c (tree_size): Do not waste tail padding in
        struct tree_string and make the size be the same as
        build_string will generate.

2006-06-28  Jason Merrill  <jason@redhat.com>

        PR c++/27768
        * tree-ssa-alias.c (compute_flow_insensitive_aliasing): Add
        may_aliases already in the tag's annotations to the bitmap.

2006-06-28  Roger Sayle  <roger@eyesopen.com>

        * genpreds.c (write_predicate_stmts) <IOR>: Add missing break.

2006-06-28  Roger Sayle  <roger@eyesopen.com>

        * genpreds.c (generate_switch_p): New function.
        (add_mode_tests): Push the new mode test down inside an AND expr
        if this allows the switch-suitable MATCH_CODE to be near the root.
        (write_match_code_switch): New function to write a MATCH_CODE as
        a switch statement.
        (write_predicate_stmts): New function to write a predicate RTX
        expression as a sequence of statements.
        (write_one_predicate_function): Use write_predicate_stmts.
        (write_tm_constrs_h): Likewise.

2006-06-26  Fred Fish  <fnf@specifix.com>

        * config/mips/t-sb1: New file.
        * config.gcc (mipsisa64sb1-*-elf*): Add mips/t-sb1 to
        tmake_file list.

2006-06-26  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_print_operand): Fix sign-merging logic.

2006-06-26  Naveen H.S  <naveenh@kpitcummins.com>
            Jayant Sonar  <jayants@kpitcummins.com>
            Jaydeep Vipradas  <jaydeepv@kpitcummins.com>

        * config/m32c/addsub.md (addsi3, addsi3_1, addsi3_2): New.
        (subsi3, subsi3_1, subsi3_2): New.
        * config/m32c/bitops.md (andsi3, iorsi3, xorsi3): New.
        * config/m32c/mov.md (SI mov peephole): New.
        * config/m32c/m32.c (m32c_immd_dbl_mov): New.
        * config/m32c/m32c-protos.h (m32c_immd_dbl_mov): New.

2006-06-26  Olivier Hainque  <hainque@adacore.com>

        * function.c (aggregate_value_p): Honor DECL_BY_REFERENCE on
        a CALL_EXPR target function declaration.

2006-06-26  Richard Guenther  <rguenther@suse.de>

        * tree.c (build_string): Do not waste tail padding in
        struct tree_string.

2006-06-26  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (init_ggc): Add missing element to size_lookup
        table.

        Revert
        2006-06-23  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (init_ggc): Do not round up the extra_order_size_table
        sizes to MAX_ALIGNMENT.  Fix the size_lookup table to honour
        alignment requests instead.  Add verification code.
        Add struct tree_function_decl and struct tree_binfo size to
        extra_order_size_table.  Add missing element to size_lookup
        table.

2006-06-25  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/28151
        * fold-const.c (const_binop): Be prepared for self returning zero.
        Simplify code handling complex values.

2006-06-24  Olivier Hainque  <hainque@adacore.com>

        * gimplify.c (gimplify_scalar_mode_aggregate_compare): New function.
        (gimplify_expr): Use it for tcc_comparison of operands of non BLKmode
        aggregate types.

2006-06-24  Olivier Hainque  <hainque@adacore.com>

        * tree-ssa-loop-im.c (for_each_index): Handle ARRAY_RANGE_REF as
        ARRAY_REF, so have the callback called for the low bound expression.

2006-06-23  Janis Johnson  <janis187@us.ibm.com>

        * tree.h (DECIMAL_FLOAT_TYPE_P): New.
        * c-typeck.c (c_common_type): Disallow operations on decimal float
        types and other float types.
        * convert.c (convert_to_real): Don't ignore conversions involving
        decimal float types.

2006-06-23  Olivier Hainque  <hainque@adacore.com>

        * tree.c (max_int_size_in_bytes): New function, inspired from
        code in function.c:assign_temp.
        * tree.h (max_int_size_in_bytes): Declare.
        * function.c (assign_temp): Use it.
        * gimplify.c (create_tmp_var): Relax the assertions on the type
        properties, not mandating constant size any more.
        (force_constant_size): New static function.
        (gimple_add_tmp_var): Use it, forcing variable size to a
        constant upper bound if it is not constant on entry.

2006-06-23  Danny Smith   <dannysmith@users.sourceforge.net>

        PR target/27789
        * config/i386/winnt.c (ix86_handle_selectany_attribute): Move check
        for initialization and setting of one_only flag to ...
        (i386_pe_encode_section_info): ...here.
        (i386_pe_dllimport_p): Check for DECL_DLLIMPORT_P also.
        Recheck that the symbol has not been defined.

2006-06-23  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (init_ggc): Do not round up the extra_order_size_table
        sizes to MAX_ALIGNMENT.  Fix the size_lookup table to honour
        alignment requests instead.  Add verification code.
        Add struct tree_function_decl and struct tree_binfo size to
        extra_order_size_table.  Add missing element to size_lookup
        table.

2006-06-22  Roger Sayle  <roger@eyesopen.com>
            John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/28131
        * expr.c (expand_expr_real_1) <VECTOR_CST>: Check whether the
        call to lang_hooks.types.type_for_mode returned NULL_TREE.

2006-06-23  Ben Elliston  <bje@au.ibm.com>

        * dfp.c (decimal_to_decnumber): Do not use decNumberNegate to
        negate dn -- manipulate it directly.

2006-06-22  Roger Sayle  <roger@eyesopen.com>
            Steven Bosscher  <stevenb.gcc@gmail.com>

        PR target/27531
        * reload1.c (gen_reload): Call mark_jump_label on the new insns
        generated by gen_move_insn to add REG_LABEL notes if necessary.

2006-06-22  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm (MIN_ESA): Delete.
        (leaf_entry): Remove use of MIN_ESA.

2006-06-22  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/28121
        * cfgexpand.c (tree_expand_cfg): Clean EDGE_EXECUTABLE flag from
        the entry edge.

2006-06-21  DJ Delorie  <dj@redhat.com>

        * config/m32c/muldiv.md (mulhisi3_i): Only use registers for dest
        (TN-16C-A156A/E).
        (mulhisi3_r): Likewise.

2006-06-21  Richard Sandiford  <richard@codesourcery.com>

        PR middle-end/28034
        * coverage.c (coverage_counter_alloc): Leave the index type
        unspecified.
        (coverage_counter_alloc): Use null arguments for operands 2 and 3
        of the ARRAY_REF.

2006-06-21  Andrew Pinski  <pinskia@physics.uc.edu>

        * doc/invoke.texi (-fopenmp) Move to "Options Controlling C Dialect"
        section from the "Options for Code Generation Conventions".

2006-06-21  Richard Henderson  <rth@redhat.com>

        PR target/26347
        PR target/27082
        * config/alpha/predicates.md (small_symbolic_operand): Deny weak
        symbols.
        (global_symbolic_operand): Allow weak symbols, even if local_p.

2006-06-21  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): New function.
        (find_interesting_uses_address): Punt if above function returns true.

2006-06-21  Richard Guenther  <rguenther@suse.de>

        * configure: Regenerated.

2006-06-21  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.c (function_arg): Where one part of a
        complex argument is in registers and the other part in the stack,
        return a REG not a PARALLEL.

2006-06-21  Mark Mitchell  <mark@codesourcery.com>

        * configure.ac: Set gcc_gxx_include_dir to $target/include/c++
        when cross-compiling.  Do not substitute libstdcxx_incdir.
        * configure: Regenerated.

2006-06-21  Jakub Jelinek  <jakub@redhat.com>

        * varasm.c (mergeable_string_section): Check for embedded NULs and
        NUL termination in the first int_size_in_bytes (TREE_TYPE (decl))
        rather than TREE_STRING_LENGTH bytes.

2006-06-21  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (extra_order_size_table): Add var_ann_d,
        tree_ssa_name, bitmap_element and phi_node with 4 arguments
        sizes.

2006-06-21  Richrad Guenther  <rguenther@suse.de>

        * tree-ssa-loop-niter.c (simplify_using_initial_conditions):
        Limit iteration over the dominators.

2006-06-20  Roger Sayle  <roger@eyesopen.com>

        * config/mips/iris6.h (LIB_SPEC): Add support for -pthread.
        (SUBTARGET_CPP_SPEC): Define _REENTERANT if -pthread specified.

2006-06-20  Richard Guenther  <rguenther@suse.de>
        Michael Matz  <matz@suse.de>

        * alloc-pool.h (free_alloc_pool_if_empty): Prototype new
        function.
        * alloc-pool.c (free_alloc_pool_if_empty): New function.
        * et-forest.h (et_free_pools): Prototype new function.
        * et-forest.c (et_free_tree_force): Free parent occurrence.
        (et_free_pools): New function.
        * dominance.c (free_dominance_info): Free et-forest alloc
        pools.

2006-06-20  Roger Sayle  <roger@eyesopen.com>

        * expr.c (expand_expr_real_1) <VECTOR_CST>: For vector constants with
        integer modes, attempt to directly construct an integer constant.

        * fold-const.c (native_encode_vector): Determine the size of each
        element from the vector type instead of the first vector element.

        * tree.c (build_constructor_single): Mark a CONSTRUCTOR as constant,
        if all of its elements/components are constant.
        (build_constructor_from_list): Likewise.

2006-06-20  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27331
        * tree-data-ref.c (free_data_ref): New function.
        (create_data_ref): Fail if the data reference has unknown access
        function.
        (free_data_refs): Use free_data_ref.

2006-06-19  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/28075
        * tree-inline.c (setup_one_parameter): Strip useless
        type conversion before adding it to the IR.
        (declare_return_variable): Likewise.

2006-06-19  Martin Michlmayr  <tbm@cyrius.com>

        PR c/27149
        * c-common.c (c_common_truthvalue_conversion): Fix grammar in warning.

2006-06-19  Mike Stump  <mrs@apple.com>

        * tree.c (variably_modified_type_p): VM arguments don't make the
        type a VM type.

2006-06-19  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (try_combine_conversion): Strip useless
        type conversions after folding.

2006-06-19  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (extra_order_size_tab): Add entries with
        size of struct function and basic_block.
        (size_lookup): Extend to cover sizes up to 511.
        (ggc_alloc_stat): Adjust user.
        (ggc_pch_count_object): Likewise.
        (ggc_pch_alloc_object): Likewise.
        (ggc_pch_write_object): Likewise.

2006-06-19  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (implies_ge_p): New function.
        (derive_constant_upper_bound): Handle OP0 - CST in unsigned types
        correctly.

2006-06-19  Denis Chertykov  <denisc@overta.ru>

        * config/avr/libgcc.S : Correct my wrong previous commit.

2006-06-19  Roger Sayle  <roger@eyesopen.com>

        PR target/27861
        * expmed.c (expand_shift): On SHIFT_COUNT_TRUNCATED targets, we may
        have stripped a SUBREG from the shift count, so we may need to
        convert_to_mode back to the type's mode before calling make_tree.
        Use new_amount instead of amount to avoid expanding a tree twice.

2006-06-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/28045
        * fold-const.c (operand_equal_p): Check if the argument types
        have the same precision before stripping NOPs.

2006-06-19  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/27341
        * tree-cfg.c (gimplify_val): Call mark_new_vars_to_rename on the
        statement we get.
        * tree-complex.c (pass_lower_complex): Update SMT usage.

2006-06-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("doloop_si64", "doloop_si31", "doloop_di"):
        Add a new alternative to the constraint strings. Add move of
        operand 1 to 3 to the splitter definition.
        ("doloop_si_long"): Second contraint alternative removed.

2006-06-08  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (avr_have_movw_lpmx_p): Declare.
        (TARGET_CPU_CPP_BUILTINS): Add __AVR_HAVE_MOVW__ and
        __AVR_HAVE_LPMX__.
        (AVR_HAVE_MOVW) Define.
        (ASSEMBLER_DIALECT): Use AVR_HAVE_MOVW.
        (ASM_SPEC): Add avr25.
        (LINK_SPEC): Add avr25.
        * config/avr/avr.c (avr_have_movw_lpmx_p): Add.
        (base_arch_s): Add new member 'have_movw_lpmx'.
        (avr_arch_types): Init 'have_movw_lpmx'.
        (avr_mcu_types): Add 'avr25'. Move attiny13, attiny2313, attiny24,
        attiny44, attiny84, attiny25, attiny45, attiny85, attiny261,
        attiny461, attiny861 and at86rf401 in 'avr25' arhitecture.
        (avr_override_options): Init 'avr_have_movw_lpmx_p'.
        (output_movhi, output_movsisf, ashlsi3_out, avr_rtx_costs): Use
        AVR_HAVE_MOVW.
        (avr_file_start): Do not output '.arh' derective.
        * config/avr/libgcc.S (mov_l): Use __AVR_HAVE_MOVW__.
        (__do_copy_data): Use __AVR_HAVE_LPMX__.
        * config/avr/avr.md (mcu_enhanced): Delete.
        (mcu_have_movw): Define.
        (negsi2, extendhisi2, zero_extendhisi2): Use 'mcu_have_movw'.
        (call_insn, call_value_insn): Use 'call_insn' and __AVR_HAVE_MOVW__.
        * config/avr/t-avr(MULTILIB_OPTIONS, MULTILIB_DIRNAMES): Add avr25.
        (MULTILIB_MATCHES): Add attiny13, attiny2313, attiny24, attiny44,
        attiny84, attiny25, attiny45, attiny85, attiny261, attiny461,
        attiny861 and at86rf401 devices.

2006-06-18  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.c (MAX_LOOP_LENGTH): Define to be 2042 instead
        of 4096.

2006-06-17  Karl Berry  <karl@gnu.org>

        * doc/cpp.texi, doc/cppinternals.texi, doc/gcc.texi,
        doc/gccint.texi, doc/install.texi (@dircategory): Use
        "Software development" instead of "Programming", following
        the Free Software Directory.

2006-06-17  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/i386.c (legitimate_tls_address)
        <TARGET_GNU2_TLS>: Add tp after DTPOFF.
        * config/i386/i386.md (*tls_dynamic_gnu2_combine_32): Adjust.
        (*tls_dynamic_gnu2_combine_64): Likewise.

2006-06-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27116
        * fold-const.c (negate_expr_p): Do not introduce undefined
        overflow in negating INTEGER_CSTs.
        (fold_negate_expr): Rename from negate_expr.  Revert last
        change for folding BIT_NOT_EXPR.  Change semantics to
        return NULL_TREE for non-simplified negations.  Do not
        strip type conversions and unify type handling.
        (negate_expr): New function, wrap around fold_negate_expr
        but ensure building a tree always.  Strip type conversions
        here, fold to result type.
        (fold_unary): Use fold_negate_expr for folding NEGATE_EXPR.

2006-06-16  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/27802
        * reg-stack.c (subst_stack_regs): Handle noreturn function calls
        that (would) return their results in stack registers.

2006-06-16  Michael Matz  <matz@suse.de>
        Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_truthop): Only return new tree node if
        we canonicalized something.

2006-06-16  Richard Guenther  <rguenther@suse.de>

        * function.h (enum function_frequency): Move declaration
        out of struct function.
        (struct function): Move bool fields and the enum to the bitfield
        section.  Reorder elements to avoid padding.  Remove unused
        fields left over from the RTL inliner removal.
        * function.c (free_after_compilation): Do not zero removed fields.
        * Makefile.in (ipa-reference.o): Add $(FUNCTION_H) dependency.
        (ipa-type-escape.o): Likewise.

2006-06-16  Richard Guenther  <rguenther@suse.de>

        * cgraph.h (struct cgraph_local_info): Turn bool elements
        into a bitfield.
        (struct cgraph_node): Likewise.
        (struct cgraph_varpool_node): Likewise.

2006-06-15  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_truth_not_expr): Rename from
        invert_truthvalue.  Give it fold_* semantics to avoid
        generating garbage.
        (invert_truthvalue): New function.  Wrapper around
        fold_truth_not_expr.
        (optimize_minmax_comparison): Avoid creating garbage.
        (fold_unary): Use fold_truth_not_expr for folding
        TRUTH_NOT_EXPR.
        (fold_ternary): Replace uses of invert_truthvalue with
        fold_truth_not_expr where applicable.
        * tree.h (fold_truth_not_expr): Prototype.

2006-06-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27781
        * Makefile.in (ipa-pure-const.o): Add $(TARGET_H) dependency.
        * ipa-pure-const.c (target.h): Include.
        (analyze_function): Do not analyze functions that do not
        bind locally.

2006-06-15  Andrew MacLeod  <amacleod@redhat.com>

        PR middle-end/27793
        * tree-dfa.c (referenced_vars_dup_list): Remove.
        (find_referenced_vars): Remove assert.
        (referenced_var_check_and_insert): Replace dup list with assert.
        * tree-ssa.c (delete_tree_ssa): Remove dup list processing.
        * tree-flow.h (referenced_vars_dup_list): Remove extern decl.

2006-06-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (alias_get_name): Avoid creating
        extra unused identifiers if not dumping.
        (create_variable_info_for): Likewise.

2006-06-15  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (implies_nonnegative_p): New function.
        (derive_constant_upper_bound): Derive more precise upper bound in
        common cases.  Return type changed to double_int.
        (record_estimate): Reflect the changed return type of
        derive_constant_upper_bound.
        * double-int.c (double_int_zext, double_int_sext): Fix.

2006-06-15  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac (CFLAGS): Get them from the toplevel or from the
        configure invocation.
        * configure: Regenerate.
        * Makefile.in (CFLAGS): Substitute value provided by configure.

2006-06-14  Mark Mitchell  <mark@codesourcery.com>

        PR c++/26559
        * c-common.h (c_finish_omp_atomic): Adjust declaration.
        * c-omp.c (c_finish_omp_atomic): Return the expression to perform,
        rather than calling add_stmt on it.
        * c-parser.c (c_parser_omp_atomic): Adjust accordingly.

2006-06-14  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR middle-end/27959
        * reload1.c (reload): Remove registers returned by update_eliminables
        from used_spill_regs.

2006-06-13  DJ Delorie  <dj@redhat.com>

        * config/m32c/muldiv.md (mulpsi3): Expect arbitrary constants.

2006-06-13  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Define HTMLS_BUILD, HTMLS_INSTALL,
        html__strip_dir, html__mkdir_p. Enhance install-html target.
        * configure.ac: AC_SUBST datarootdir, docdir and htmldir.
        * configure: Regenerate.

2006-06-13  Fariborz Jahanian <fjahanian@apple.com>

        * fold-const.c (fold_cond_expr_with_comparison): Check for
        Objective-C++ as language in deciding COND_EXPR transformation.

2006-06-06  J"orn Rennecke <joern.rennecke@st.com>

        PR target/28014:
        * config/sh/t-sh (LIB1ASMFUNCS): Add _udiv_qrnnd16
        * config/sh/sh.c (print_operand): Add !SHMEDIA functionality to 'M'.
        * config/sh/lib1funcs.h (SL, SL1): Define.
        * config/sh/lib1funcs.asm (__udiv_qrnnd16): New hidden function.
        * longlong.h (__sh__): Define umul_ppmm, udiv_qrnnd and sub_ddmmss.
        * config/sh/t-sh ($(T)unwind-dw2-Os-4-200.o): New rule.
        (OBJS_Os_4_200): New variable.
        ($(T)libgcc-Os-4-200.a): Use it.
        * sh.md (udivsi3): For TARGET_DIVIDE_CALL_TABLE, avoid function call
        when dividing 1 and/or by 0.

2006-06-13  Roger Sayle  <roger@eyesopen.com>

        * configure.ac (HAS_MCONTEXT_T_UNDERSCORES): Include <sys/signal.h>
        before <ucontext.h> to define sigset_t required by <sys/ucontext.h>.
        * configure: Regenerate.

2006-06-13  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.c (bfin_reorg_loops): Only call recog_memoized ()
        for real instruction.

2006-06-13  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR middle-end/26807
        * haifa-sched.c (check_cfg): Handle special case.

2006-06-13  Eric Botcazou  <ebotcazou@adacore.com>

        PR debug/26754
        * gimplify.c (declare_tmp_vars): Rename into declare_vars.
        Add debug_info parameter.  Chain the vars to the BLOCK instead
        of the BIND_EXPR if debug info are requested for them.
        (pop_gimplify_context): Adjust for above change.
        (gimple_add_tmp_var): Likewise.
        * tree-gimple.h (declare_tmp_vars): Rename into declare_vars.
        Add bool parameter.
        * tree-nested.c (convert_nonlocal_reference): Adjust for above change.
        (convert_local_reference): Likewise.
        (get_local_debug_decl): Set DECL_IGNORED_P on the original variable.
        (finalize_nesting_tree_1): Request that debug info be emitted
        for debug_var_chain.

2006-06-13  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (unlink_other_notes, unlink_line_notes): Fix the patch
        for PR target/27863.

2006-06-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27536
        * except.c (output_ttype): Expand type with EXPAND_INITIALIZER.

2006-06-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27830
        * tree-inline.c (copy_body_r): For copying the operand
        of an ADDR_EXPR make sure to fold &* afterwards.

2006-06-12  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_expr): Treat VIEW_CONVERT_EXPR like other
        lvalues in the fb_none case with side-effects.

2006-06-12  Kazu Hirata  <kazu@codesourcery.com>

        * tree-flow.h: Remove the prototype for
        compute_phi_arg_on_exit.
        * tree-ssa-loop-ivopts.c (protect_loop_closed_ssa_form_use,
        protect_loop_closed_ssa_form, compute_phi_arg_on_exit):
        Remove.

2006-06-12  Mark Shinwell  <shinwell@codesourcery.com>

        * builtins.c (expand_builtin_return_addr): Only use
        frame_pointer_rtx when count == 0 and we are expanding
        __builtin_return_address.

2006-06-12  Fred Fish  <fnf@specifix.com>

        * config/mips/mips.c (mips_file_start): Create special section
        ".gcc_compiled_longXX" for o64 ABI as well as EABI.

2006-06-11  Eric Christopher  <echristo@apple.com>

        PR middle-end/27948
        * stor-layout.c (place_field): Remove check for
        remaining_in_alignment when aligning at the end of a run.

2006-06-11  Eric Christopher  <echristo@apple.com>

        PR 27542
        * doc/extend.texi (Structure-Packing Pragmas): Document ms_struct
        pragma.

2006-06-11  Roger Sayle  <roger@eyesopen.com>

        PR target/27858
        Revert incorrect fix for PR target/27158
        2006-05-08  Roger Sayle  <roger@eyesopen.com>
        * reload.c (find_reloads_toplev): Only return the simplified SUBREG
        of a reg_equiv_constant if the result is a legitimate constant.

2006-06-11  Roger Sayle  <roger@eyesopen.com>

        PR target/27158
        * config/rs6000/rs6000.c (const_vector_elt_as_int): New function to
        extract a CONST_VECTOR element and interpret it as an integer.
        (vspltis_constant): Use const_vector_elt_as_int instead of the
        macro CONST_VECTOR_ELT in order to handle FP vector modes.
        * config/rs6000/predicates.md (easy_vector_const): Consider
        floating point ALTIVEC_VECTOR_MODEs via easy_altivec_constant.

2006-06-11  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR middle-end/27942
        * stor-layout.c (update_alignment_for_field): Don't add extra
        alignment for packed non-bitfield fields in ms_bitfield_layout_p
        code.

2006-06-09  Ralf Corsepius  <ralf.corsepius@rtems.org>

        * config/mips/t-rtems: Add EL/EB multilib variants.

2006-06-09  Mike Stump  <mrs@apple.com>

        * c-typeck.c (c_begin_vm_scope): Fix file_scope processing.

2006-06-09  David Daney  <ddaney@avtrex.com>

        * doc/install.texi: Add binutils version recommendation for mips-*-*.

2006-06-09  Andreas Krebbel  <krebbel1@de.ibm.com>

        * reload.c (find_reloads): Unset force_reload for 'X' constraint.

2006-06-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26998
        * tree-vrp.c (extract_range_from_unary_expr): For NEGATE_EXPR
        of signed types, only TYPE_MIN_VALUE is special, but for both,
        minimum and maximum value.  Likewise VR_ANTI_RANGE is special
        in this case, as is -fwrapv.

2006-06-08  Mike Stump  <mrs@apple.com>

        PR target/26427
        * config/darwin.c (darwin_asm_output_anchor): Disable
        -fsection-anchors on darwin for now.
        * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Likewise.
        * rs6000/rs6000.c (optimization_options): Likewise.

2006-06-08  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR target/27421
        * config/i386/i386.c (classify_argument): Skip fields with invalid
        types in unions.

2006-06-08  Steven Bosscher  <steven@gcc.gnu.org>

        * cse.c (flush_hash_table): Use VOIDmode to invalidate a REG.
        (cse_insn): Likewise for the stack_pointer_rtx.

2006-06-08  Roger Sayle  <roger@eyesopen.com>

        * tree-ssa-dom.c (record_conditions): Only record "unordered"
        conditions from floating point comparisons.

2006-06-08  Paolo Bonzini  <bonzini@gnu.org>

        PR middle-end/27733
        * expmed.c (struct alg_hash_entry): Fix type of field T
        to match synth_mult argument.
        (NUM_ALG_HASH_ENTRIES): Make it bigger for 64-bit HOST_WIDE_INT.

2006-06-08  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR target/27863
        * haifa-sched.c (unlink_other_notes, unlink_line_notes): Update basic
        block boundaries.

2006-06-08  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27116
        * fold-const.c (negate_expr_p): We can negate BIT_NOT_EXPR
        only, if overflow is defined and not trapping.
        (negate_expr): Likewise.

2006-06-07  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27872
        * tree-ssa-loop-manip.c (tree_unroll_loop): Set EDGE_IRREDUCIBLE_LOOP
        flag on the new exit edge of the unrolled loop.

2006-06-07  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26449
        * loop-invariant.c (move_invariant_reg): Fail if force_operand fails.

2006-06-07  Andrew MacLeod  <amacleod@redhat.com>

        PR middle-end/27793
        * tree-dfa.c (referenced_vars_dup_list): New.  List of duplicate
        referenced_variables with matching DECL_UID's.
        (find_referenced_vars): Make sure duplicate list is empty to start.
        (referenced_var_p): Remove.
        (referenced_var_check_and_insert): Renamed from referenced_var_insert.
        Check if var is in the list, and add if needed.  Update the duplicate
        list if a different var is in the list with the same DECL_UID.
        (add_referenced_var): Call routine to check and insert.
        * tree-ssa.c (delete_tree_ssa): Clear var_ann's on duplicates.
        * tree-flow.h (referenced_vars_dup_list): External declaration.

2006-06-07  Fred Fish  <fnf@specifix.com>

        * config/mips/t-elf (MULTILIB_MATCHES): Combine two entries
        into single entry.

2006-06-07  Paolo Bonzini  <bonzini@gnu.org>

        PR target/27390
        * reg-stack.c (subst_stack_regs_pat): Reorder resetting of
        the imaginary and real parts of a clobbered register.
        Emit insn to set the imaginary part.

2006-06-06  Peter Lemieszewski  <lemie@us.ibm.com>

        * config/s390/t-tpf (LIB2ADDEH): Include unwind-dw2-fde-glibc.c
        in lieu of unwind-dw2-fde.c.

2006-06-06  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        * config/i386/mingw32.h (GOMP_SELF_SPECS): Define.

2006-06-06  Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/27842
        * config/rs6000/altivec.md (UNSPEC_VSLW): Remove.
        ("altivec_vspltisw_v4sf", "altivec_vslw_v4sf"): Remove.
        ("mulv4sf3", "absv4sf3", "negv4sf3"): Adapt users to use
        V4SImode temporaries and operations instead.

2006-06-06  Joseph S. Myers  <joseph@codesourcery.com>

        * config/mips/t-linux64 (tp-bit.c): Append to tp-bit.c, not
        dp-bit.c.

2006-06-06  Mike Stump  <mrs@apple.com>

        * Makefile.in: Rename to htmldir to build_htmldir to avoid
        installing during build.

2006-06-06  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): Change default
        value to 0.
        * doc/invoke.texi (max-sched-extend-regions-iters): Document.
        * config/ia64/ia64.c (params.h): New header.
        (ia64_optimization_options): New function to adjust parameters.
        * config/ia64/ia64-protos.h (ia64_optimization_options): New prototype.
        * config/ia64/ia64.h (OPTIMIZATION_OPTIONS): New macro.
        * config/ia64/t-ia64 (ia64.o): Add dependence from params.h .

2006-06-05  Kazu Hirata  <kazu@codesourcery.com>

        * stor-layout.c (debug_rli): Fix a typo in a debug message.

2006-06-05  Steve Ellcey  <sje@cup.hp.com>

        PR target/27051
        * config/ia64/ia64.c (ia64_select_rtx_section): Check TARGET_NO_SDATA.

2006-06-05  Dorit Nuzman  <dorit@il.ibm.com>
            Victor Kaplansky  <victork@il.ibm.com>

        PR tree-optimization/26360
        * tree-vectorizer.c (destroy_loop_vec_info): Remove (dead) pattern
        stmts.

2006-06-04  Roger Sayle  <roger@eyesopen.com>
            Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/27382
        * c-common.c (c_common_truthvalue_conversion): Explicitly check
        for LABEL_DECL before calling DECL_WEAK.

        PR c/27150
        * c-typeck.c (build_binary_op): Likewise, explicitly check for
        LABEL_DECL and PARM_DECL.

2006-06-05  Joseph S. Myers  <joseph@codesourcery.com>

        PR c/25161
        PR c/27020
        * c-decl.c (grokdeclarator): Disallow variably modified types at
        file scope.  Avoid marking shared array type of constant size as
        VLA.

2006-06-04  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c++/27601
        * c-common.c (fold_offsetof_1): Handle static members.

2006-06-04 Eric Christopher <echristo@apple.com>

        * stor-layout.c (start_record_layout): Initialize remaining_in_alignment.
        (debug_rli): Output value for remaining_in_alignment.
        (update_alignment_for_field): Unconditionalize
        ms_bitfield_layout_p code. Handle non-bitfield fields. Remove
        extra alignment code.
        (place_field): Don't realign if ms_bitfield_layout_p. Unconditionalize
        ms_bitfield_layout_p code. Rewrite handling of structure fields.
        * tree.h (record_layout_info_s): Remove prev_packed.
        * doc/extend.texi (ms_struct): Add documentation of format.

2006-06-04  Mark Shinwell  <shinwell@codesourcery.com>

        * tree.h: Declare folding_initializer.
        * builtins.c (fold_builtin_constant_p): Give definite answer
        if folding inside an initializer.
        * fold-const.c: Define folding_initializer.
        (START_FOLD_INIT): Save and then set folding_initializer.
        (END_FOLD_INIT): Restore folding_initializer.

2006-06-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27039
        * fold-const.c (fold_comparison): Handle pointer comparison
        again for all comparison codes.  Compare offsets in signed
        size type.
        (fold_binary): Move code from here.

2006-06-03  Roger Sayle  <roger@eyesopen.com>

        PR target/26223
        * config/i386/i386.c (construct_container): Split static issued_error
        flag into issued_sse_arg_error, issued_sse_ret_error and
        issued_x87_ret_error.  Issue a daignostic if the x86-64 ABI
        requires the use of x87 registers and the user explicitly
        specified the -mno-80387 command line option.

2006-06-02  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/host-darwin.c (sigaltstack): Protect prototype with
        HAVE_DECL_SIGALTSTACK.
        (MC_FLD): New.
        (segv_handler): Use MC_FLD.
        * configure.ac: Check for a sigaltstack declaration.
        Compute HAS_MCONTEXT_T_UNDERSCORES on Darwin.
        * configure: Regenerate.
        * config.in: Regenerate.

2006-06-03  J"orn Rennecke <joern.rennecke@st.com>

        PR other/27850
        * Makefile.in (stmp-fixinc): Fix typo.

2006-06-02  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <CONJ_EXPR>: Ensure folded expressions
        are type correct.  Clean-up.
        <REALPART_EXPR>: Likewise.  Optimize creal(~z) as creal(z).
        <IMAGPART_EXPR>: Likewise.  Optimize cimag(~z) as -cimag(z).

2006-06-01  DJ Delorie  <dj@redhat.com>

        * config/v850/v850.h (ASM_OUTPUT_ADDR_DIFF_ELT): Disabled the
        shift, as we've disabled the "switch" insn that needs it.

2006-06-01  Per Bothner  <bothner@bothner.com>

        Suppress extra '#1 <built-in> or '#1 <command line>' on -dD output.
        * c-opts.c (finish_options): Use internal line 0 for <command-line>.
        * c-ppoutput.c (cb_define): Don't increment line 0.

2006-06-01  Pete Steinmetz  <steinmtz@us.ibm.com>

        * doc/invoke.texi: Add cpu_type power6.
        * config.gcc: Add cpu_type power6.
        * config/rs6000/rs6000.c (rs6000_override_options): Alias power6
        to power5+ with Altivec.
        * config/rs6000/aix52.h (ASM_CPU_SPEC): Add power6.
        * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add power6.

2006-05-30  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (SET_ASM_OP): Define.

2006-06-01  Kazu Hirata  <kazu@codesourcery.com>

        * config/bfin/bfin.c: Fix comment typos.

2006-06-01  Paolo Bonzini  <bonzini@gnu.org>

        PR 25453
        * doc/install.texi: Document --enable-bootstrap and
        --disable-bootstrap.

2006-06-01  Paolo Bonzini  <bonzini@gnu.org>

        * doc/install.texi: Document that InfoZIP can replace jar.

2006-05-31  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_expand_fp_absneg_operator): When SSE
        isn't available, directly generate the simpler x87 patterns without
        the (use (const_int 0)).
        * config/i386/i386.md (*negsf2_1): Enable pre-reload if the SSE
        implementation isn't available.
        (*negdf2_1): Likewise.
        (*negxf2_1): XF mode negation is always done using the x87.
        (*abssf2_1, *absdf2_1, *absxf2_1): Likewise^3 for fabs.

2006-05-31  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_cabs): Delete prototype.  Require an
        additional FNDECL argument.  Optimize cabs(-z) and cabs(~z) as
        cabs(z).
        (fold_builtin_decl) <BUILT_IN_CABS>: Update fold_builtin_cabs call.

2006-05-31  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin-protos.h (bfin_hardware_loop): Declare.
        * config/bfin/bfin.c (basic-block.h): Include.
        (struct machine_function): New.
        (bfin_init_machine_status): New.
        (override_options): Initialize init_machine_status.
        (bfin_hardware_loop): New.
        (MAX_LOOP_DEPTH, MAX_LOOP_LENGTH): Define.
        (DEF_VEC_P (loop_info)): New.
        (DEF_VEC_ALLOC_P (loop_info,heap)): New.
        (struct loop_info): New.
        (loop_info): New typedef.
        (struct loop_work): New.
        (loop_work): New typedef.
        (DEF_VEC_O (loop_work)): New.
        (DEF_VEC_ALLOC_O (loop_work,heap)): New.
        (bfin_dump_loops): New.
        (bfin_bb_in_loop): New.
        (bfin_scan_loop): New.
        (bfin_optimize_loop): New.
        (bfin_reorg_loops): New.
        (bfin_reorg): Use bfin_reorg_loops.
        * config/bfin/bfin.h (FIRST_PSEUDO_REGISTER): Adjust for adding
        loop registers.
        (I_REGNO_P): Simplify.
        (DP_REGNO_P, DPREG_P): New macros.
        (REGISTER_NAMES, FIXED_REGISTERS, CALL_USED_REGISTERS,
        REG_ALLOC_ORDER): Add LT0, LT1, LC0, LC1, LB0, LB1.
        (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
        Add LT_REGS, LC_REGS, LB_REGS.
        (REG_CLASS_FROM_LETTER): Add 't' for LT_REGS, 'k' for LC_REGS,
        'l' for LB_REGS.
        (REGNO_REG_CLASS): Deal with loop registers.
        * config/bfin/bfin.md: Add comment for 't', 'k', 'l' constraint
        letters.
        (REG_LT0, REG_LT1, REG_LC0, REG_LC1, REG_LB0, REG_LB1):
        New constants for loop registers.
        (UNSPEC_LSETUP_END): New.
        (seq_insns): New define_attr. Set it for appropriate insns.
        (movsi_insn): Add alternatives for move from/to
        loop count registers.
        (doloop_end): New define_expand.
        (loop_end): New define_insn.
        (define_split for bad doloop_end): New.
        (lsetup_with_autoinit): New define_insn.
        (lsetup_without_autoinit): New define_insn.
        (rep_movsi, rep_movhi): Clobber LT1, LC1, LB1.
        * config/bfin/predicates.md (lc_register_operand): New.
        (lt_register_operand): New.
        (lb_register_operand): New.
        (nondp_register_operand): New.
        (nondp_reg_or_memory_operand): New.
        * doc/md.texi: Document Blackfin new 't', 'k', 'l' constraint letters.

2006-05-31  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.c (bfin_delegitimize_address): New.
        (TARGET_DELEGITIMIZE_ADDRESS): Define.

2006-05-31  Daniel Jacobowitz  <dan@codesourcery.com>

        * Makefile.in (CATALOGS): Add po/ prefix.
        * configure: Regenerated.

2006-05-31  Richard Earnshaw  <richard.earnshaw@arm.com>

        PR target/27829
        * arm.c (arm_print_operand case 'S'): Validate that the operand is
        a shift operand before calling shift_op.  Avoid redundant call of
        shift_op.

2006-05-30  Naveen.H.S  <naveenh@kpitcummins.com>
            DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_expand_insv): Check that the value
        we're inserting is a singlt-bit constant.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_binary_operation_1) <LSHIFTRT>: Cast
        width to HOST_WIDE_INT to avoid comparison warnings on some targets.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/23452
        * fold-const.c (fold_mult_zconjz): New subroutine of fold_binary,
        to optimize z * conj(z) as realpart(z)^2 + imagpart(z)^2.
        (fold_binary) <MULT_EXPR>: Call fold_mult_zconjz for integral
        complex values and with -ffast-math for FP complex values.

2006-05-30  Kazu Hirata  <kazu@codesourcery.com>

        * c-common.h: Remove the prototype for yyparse.
        * rtl.h: Remove the prototype for init_loop.

2006-05-30  Andreas Krebbel  <krebbel1@de.ibm.com>

        * cse.c (validate_canon_reg, cse_insn): Don't change insns without
        calling recog.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_binary_operation): Unfactor the shift
        and rotate cases.
        <LSHIFTRT>: Optimize (lshiftrt (clz X) C) as (eq X 0) where C is
        log2(GET_MODE_BITSIZE(X)) on targets with the appropriate semantics.

2006-05-30  Dirk Mueller  <dmueller@suse.de>

        PR c/27273
        * c-common.c (convert_and_check): Only track TREE_CONSTANT_OVERFLOW
        for CONSTANT_CLASS_P expresisons.

2006-05-30  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/27718
        * c-typeck.c (c_expr_sizeof_type): Handle invalid types.

2006-05-30  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27779
        * tree-data-ref.c (analyze_siv_subscript_cst_affine): Use
        initial_condition instead of CHREC_LEFT.

2006-05-30  Steven Bosscher  <stevenb.gcc@gmail.com>

        * config/m32r/m32r.h (DBX_OUTPUT_SOURCE_LINE): Fix type of begin_label.
        * config/m32r/initfini.c (__do_global_dtors, __do_global_ctors):
        Make prototypes ISO C90.

2006-05-30  Mircea Namolaru  <namolaru@il.ibm.com>
            Leehod Baruch    <leehod.baruch@weizmann.ac.il>

        * see.c (see_analyze_one_def): Correct check.
        (see_get_extension_data): Check if extension is parallel.
        (see_get_extension_reg): Likewise.

2006-05-30  Uros Bizjak  <uros@kss-loka.si>

        PR target/27790
        * config/i386/i386.c (ix86_expand_int_vcond): Force cop0
        into register for (code == GTU).

2006-05-29  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/24964
        * simplify-rtx.c (simplify_binary_operation_1): Add function comment.
        <MULT>: Minor clean-up.  Don't convert x*-1.0 into -x if we honor
        signaling NaNs.  Optimize -x*-x as x*x for all float modes, and
        abs(x)*abs(x) as x*x for scalar floating point modes.

2006-05-29  Sebastian Pop  <pop@cri.ensmp.fr>

        PR middle-end/27745
        * lambda-code.c (perfect_nestify): Don't copy statements
        in the inner loop: move them to the inner loop header.

2006-05-29  Diego Novillo  <dnovillo@redhat.com>

        PR 26237
        * c-tree.texi: Document OpenMP directives and clauses.

2006-05-29  Kazu Hirata  <kazu@codesourcery.com>

        * varasm.c (globalize_decl): Fix indentation.

2006-05-29  Diego Novillo  <dnovillo@redhat.com>

        PR 26242
        * doc/passes.texi: Add documentation for pass_vrp, pass_ipa_pta,
        pass_fre, pass_store_ccp, pass_copy_prop,
        pass_store_copy_prop, pass_merge_phi, pass_nrv,
        pass_return_slot, pass_object_size, pass_lim,
        pass_linear_transform, pass_empty_loop, pass_complete_unroll,
        pass_loop_prefetch and pass_stdarg.

2005-05-29  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.opt (mfdpic): New option.
        * config/bfin/t-bfin-elf (EXTRA_PARTS): Add crtbeginS.o and crtendS.o.
        (EXTRA_MULTILIB_PARTS): Likewise.
        (CRTSTUFF_T_CFLAGS, TARGET_LIBGCC2_CFLAGS): Use -fpic.
        (MULTILIB_OPTIONS, MULTILIB_EXCEPTIONS): Build one extra -mfdpic
        multilib.
        * config/bfin/elf.h (STARTFILE_SPEC): Don't link in crt0.o if -shared.
        (CRT_CALL_STATIC_FUNCTION): New.
        * config/bfin/uclinux.h (STARTFILE_SPEC): Don't link in crt0.o if
        -shared.
        (CRT_CALL_STATIC_FUNCTION): New.
        * config/bfin/bfin.c (legitimize_pic_address): Now static.  Handle
        FD-PIC moves.
        (n_pregs_to_save): PIC register doesn't need to be saved with FD-PIC.
        (print_operand): Handle UNSPEC_MOVE_FDPIC and UNSPEC_FUNCDESC_GOT17M4.
        (initialize_trampoline): Changed to handle FD-PIC code generation.
        (expand_move): If TARGET_FDPIC, use emit_pic_move as needed.
        (bfin_expand_call): Generate FD-PIC calls if TARGET_FDPIC.
        (override_options): Disallow -mid-shared-library -mfdpic combination.
        Can't do unaligned ops if FD-PIC.
        Turn off flag_pic if trying to generate non-id-shared-library
        non-fdpic code, since it's not supported.
        (bfin_assemble_integer): New function.
        (TARGET_ASM_INTEGER): Define.
        * config/bfin/crti.s (__init, __fini): Save P3 on the stack if
        __BFIN_FDPIC__.
        * config/bfin/crtn.s: Restore them.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __BFIN_FDPIC__
        if TARGET_FDPIC.
        (DRIVER_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS,
        LINK_GCC_C_SEQUENCE_SPEC, ASM_SPEC, LINK_SPEC): New macros.
        (FDPIC_FPTR_REGNO, FDPIC_REGNO, OUR_FDPIC_REG): New macros.
        (TRAMPOLINE_SIZE, TRAMPOLINE_TEMPLATE): Adjust for FD-PIC.
        (CONDITIONAL_REGISTER_USAGE): If TARGET_FDPIC, FDPIC_REGNO is
        call-used.
        (enum reg_class, REG_CLASS_CONTENTS, REG_CLASS_NAMES): Add
        FDPIC_REGS and FDPIC_FPTR_REGS.
        (REG_CLASS_FROM_LETTER): Use 'Z' and 'Y' for them.
        * config/bfin/bfin.md (UNSPEC_MOVE_FDPIC, UNSPEC_FUNCDESC_GOT17M4,
        UNSPEC_VOLATILE_LOAD_FUNCDESC): New constants.
        (load_funcdescsi): New pattern.
        (call_symbol_fdpic, sibcall_symbol_fdpic, call_value_symbol_fdpic,
        sibcall_value_symbol_fdpic, call_insn_fdpic, sibcall_insn_fdpic,
        call_value_insn_fdpic, sibcall_value_insn_fdpic): New patterns.

2006-05-29  Kazu Hirata  <kazu@codesourcery.com>

        * gcse.c, rtlanal.c: Remove obsolete comments associated with
        loop.c.

        * config/bfin/bfin.h (PARM_BOUNDRY, STACK_BOUNDRY): Remove.

        * tree-flow.h: Remove the prototype for add_type_alias.
        * tree-ssa-alias.c (add_type_alias): Remove.

2006-05-28  Kazu Hirata  <kazu@codesourcery.com>

        * cfgcleanup.c, cfgexpand.c, cgraphunit.c, config/arm/arm.c,
        config/fr30/fr30.md, config/i386/i386-interix.h,
        config/i386/i386.c, config/i386/i386.md, config/sh/superh.h,
        config/sh/superh64.h, config/v850/v850.c, df-core.c,
        df-problems.c, df.h, except.c, final.c, haifa-sched.c,
        lambda-code.c, libgcc2.h, omp-low.c, optabs.c, predict.c,
        reload.c, tree-flow.h, tree-outof-ssa.c, tree-ssa-dce.c,
        tree-ssa-pre.c, tree-vect-transform.c: Fix comment typos.
        Follow spelling conventions.
        * doc/invoke.texi, doc/rtl.texi, doc/tm.texi: Fix typos.
        Follow spelling conventions.

2006-05-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27773
        * fold-const.c (fold_plusminus_mult_expr): Use fold_convert
        to produce a constant of value 1 of generic type.

2006-05-27  Dirk Mueller  <dmueller@suse.de>

        * cgraphunit.c (decide_is_function_needed): Fix wrong
        PR reference.

2006-05-26  Ulrich Weigand  <uweigand@de.ibm.com>

        PR rtl-optimization/27661
        * reload.c (find_reloads): When reloading a VOIDmode constant
        as address due to an EXTRA_MEMORY_CONSTRAINT or 'o' constraint,
        use Pmode as mode of the reload register.

2006-05-26  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/invoke.texi (Optimize Options): Document that -funit-at-a-time
        is enabled at -O and above.

2006-05-26  Steven Bosscher  <steven@gcc.gnu.org>

        PR target/27571
        * config/alpha/alpha.c (alpha_does_function_need_gp): Skip jump
        table data.

2006-05-25  Mark Mitchell  <mark@codesourcery.com>

        PR c++/20103
        * gimplify.c (gimplify_decl_expr): Do not call gimple_add_tmp_var
        for anonymous variables explicitly declared by front ends.

2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-structalias.h (PTR_IS_REF_ALL): New macro.
        (struct alias_info): Add new field ref_all_symbol_mem_tag.
        * tree-ssa-alias.c (compute_may_aliases): If the program contains
        ref-all pointers, run a finalization pass for them.
        (compute_flow_insensitive_aliasing): Skip ref-all pointers.
        (finalize_ref_all_pointers): New function.
        (is_escape_site): Return ESCAPE_BAD_CAST for conversion from a
        regular pointer type to a ref-all pointer type.
        (get_tmt_for): Return the special memory tag for ref-all pointers.

2006-05-25  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27743
        * fold-const.c (fold_binary): Do not look at the stripped
        op0 for (a OP c1) OP c2 to a OP (c1+c2) shift optimization.

2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vrp.c (extract_range_from_assert): Set the range to VARYING
        for LT and GT if the computed range is effectively empty.

2006-05-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/27627
        * pa/pa-modes.def: Use mips_single_format, mips_double_format and
        mips_quad_format formats instead of ieee_single_format,
        ieee_double_format and ieee_quad_format formats, respectively.

2006-05-24  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27639
        PR tree-optimization/26719
        * tree-vrp.c (adjust_range_with_scev): Use scev_direction and adjust
        call to scev_probably_wraps_p.
        * tree-ssa-loop-niter.c (compare_trees, convert_step_widening,
        used_in_pointer_arithmetic_p, convert_step): Removed.
        (nowrap_type_p): New function.
        (scev_probably_wraps_p): Rewritten.
        * tree-scalar-evolution.c (instantiate_parameters_1): Do not call
        chrec_convert if chrec_convert_aggressive might have been used.
        * tree-chrec.c (convert_affine_scev, chrec_convert_1,
        scev_direction): New functions.
        (chrec_convert): Changed to a wrapper over chrec_convert_1.
        * tree-ssa-loop-ivopts.c (idx_find_step): Use convert_affine_scev
        instead of convert_step.
        * tree-flow.h (scev_probably_wraps_p): Declaration changed.
        (convert_step): Declaration removed.
        (convert_affine_scev, nowrap_type_p, scev_direction): Declare.

2006-05-23  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-core.c: Added to header comments.
        * df.h (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info,
        df_ur_bb_info, df_urec_bb_info): Added comments.
        * df-problems (df_ref_bitmap, ru, rd, lr, ur,
        urec, ri problems): Fixed header comments.
        (df_ru_transfer_function): Fixed in-out set dyslexia when copying
        code from df_rd_transfer_function.

2006-05-23  Richard Sandiford  <richard@codesourcery.com>

        * libgcc2.c (LIBGCC2_MAX_UNITS_PER_WORD): New macro.
        (LIBGCC2_UNITS_PER_WORD): Use LIBGCC2_MAX_UNITS_PER_WORD rather than
        MIN_UNITS_PER_WORD to set the default.  Also use it in the guard.

2006-05-23  Joseph Myers  <joseph@codesourcery.com>

        * expr.c (undefined_operand_subword_p): New.
        (emit_move_multi_word): Do not generate move from undefined bits
        of a paradoxical subreg.

2006-05-23  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/27736
        * combine.c (replaced_rhs_value): New variable.
        (combine_instructions): Set it.
        (distribute_notes): When distributing a note in replaced_rhs_insn,
        check whether the value was used in replaced_rhs_value.

2006-05-23  Andrew MacLeod  <amacleod@redhat.com>

        PR c++/26757
        * tree-ssa-loop-im.c (determine_invariantness_stmt): Use
        add_referenced_var instead of add_referenced_tmp_var.
        * tree-complex.c (create_one_component_var): Use add_referenced_var.
        * tree-ssa-loop-manip.c (create_iv, tree_unroll_loop): Use
        add_referenced_var.
        * tree-tailcall.c (adjust_accumulator_values, adjust_return_value,
        tree_optimize_tail_calls_1): Use add_referenced_var.
        * tree-ssa-loop-ivopts.c (create_new_iv): Use add_referenced_var.
        * tree-ssa-alias.c (create_memory_tag, create_global_var, create_sft):
        Use add_referenced_var.
        * tree-if-conv.c (ifc_temp_var): Use add_referenced_var.
        * gimplify.c (force_gimple_operand): Use add_referenced_var.
        * tree-ssa-phiopt.c (conditional_replacement, abs_replacement):
        Use add_referenced_var.
        * tree-dfa.c (struct walk_state): Remove.
        (find_referenced_vars): Remove walk state and vars_found hash table.
        (make_rename_temp): Use add_referenced_var.
        (find_vars_r): Pass less parameters to add_referenced_var.
        (referenced_var_p): New.  Is var in referenced_var hash table.
        (referenced_var_insert): Assert var isn't already in hash table.
        (add_referenced_var): Don't need walk_state parameter.  Add var if it
        isn't already in the hash table.
        (add_referenced_tmp_var): Remove.
        (find_new_referenced_vars_1): Use add_referenced_var.
        * tree-ssa-pre.c (create_expression_by_pieces,
        insert_into_preds_of_block, insert_extra_phis, realify_fake_stores):
        Use add_referenced_var.
        * tree-vect-patterns.c (vect_pattern_recog_1): Use add_referenced_var.
        * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
        lambda_loopnest_to_gcc_loopnest, perfect_nestify): Use
        add_referenced_var.
        * tree-vect-transform.c (vect_create_addr_base_for_vector_ref,
        vect_create_data_ref_ptr, vect_create_destination_var,
        vect_init_vector, vect_build_loop_niters,
        vect_generate_tmps_on_preheader, vect_update_ivs_after_vectorizer,
        vect_gen_niters_for_prolog_loop, vect_create_cond_for_align_checks):
        Use add_referenced_var.
        * tree-outof-ssa.c (create_temp): Use add_referenced_var.
        * tree-flow.h (add_referenced_tmp_var): Remove prototype
        (add_referenced_var): Add prototype.
        * tree-ssa-structalias.c (get_constraint_for,
        intra_create_variable_infos): Use add_referenced_var.

2006-05-23  Alexandre Oliva  <aoliva@redhat.com>

        * simplify-rtx.c (simplify_subreg): Adjust REG_OFFSET for
        big-endian paradoxical subregs.
        * var-tracking.c (struct micro_operation_def): Document that,
        for modify micro operations, insn is the subsequent instruction.
        (var_reg_delete_and_set, var_mem_delete_and_set): Split into...
        (var_reg_set, var_mem_set): ... new functions.
        (add_stores): Record subsequent insn.
        (compute_bb_dataflow): Use new functions for MO_USE.
        (emit_notes_in_bb): Use new functions for MO_USE.  Emit use
        notes after the insn, and modify notes before the insn known
        to be the subsequent one.
        (vt_initialize): Invert sorting of MO_CLOBBERs and MO_SETs.

2006-05-23  Kazu Hirata  <kazu@codesourcery.com>

        PR target/27696
        * config/i386/i386.c (ix86_expand_builtin): Use
        gen_sse3_monitor64 for TARGET_64BIT.

2006-05-22  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/26375
        PR rtl-optimization/26855
        * df-problems (df_ru_bb_local_compute_process_def): Removed update
        to gen set.
        (df_ru_bb_local_compute): Reversed statements and removed bogus
        comment explaining why they should be in wrong order.
        (df_ru_dump, df_rd_dump): Enhanced debug info.
        * modulo-sched.c (sms_schedule, tree_opt_pass pass_sms): Enhanced
        debug info.
        * ddg.c (add_deps_for_def): Converted use of reaching defs to
        reaching uses and fixed space problem.

2006-05-23  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (decide_is_function_needed): Also nested functions
        and functions declared inline can be optimized out at -O0.

2006-05-22  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Configuration): Remove reference to CrossGCC
        FAQ which was gone.
        (Building): Ditto.

2006-05-22  Kazu Hirata  <kazu@codesourcery.com>

        PR target/27266
        * config/i386/i386.c (ix86_expand_branch): Jump to simple if
        ix86_compare_emitted is non-NULL.

2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c++/27451
        * stmt.c (expand_asm_operands): Skip asm statement with erroneous
        clobbers.

2006-05-22  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/25514
        * combine.c (replaced_rhs_insn): New variable.
        (combine_instructions): Set replaced_rhs_insn when trying to replace
        a SET_SRC with a REG_EQUAL note.
        (distribute_notes): Use replaced_rhs_insn when determining the live
        range of a REG_DEAD register.

2006-18-05  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
            Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Add support for attiny261,
        attiny461, attiny861, attiny25, attiny45, attiny85, attiny24,
        attiny44, attiny84, at90pwm2, at90pwm3, atmega165p, atmega169p,
        atmega164p, atmega324p, atmega644p, atmega644, atmega329,
        atmega3290, atmega649, atmega6490, atmega406, atmega640,
        atmega1280, atmega1281, at90can32, at90can64, at90usb646,
        at90usb647, at90usb1286 and at90usb1287 devices.
        * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2006-05-22  Richard Sandiford  <richard@codesourcery.com>

        * mklibgcc.in (lib2funcs): Remove _floatdidf from initial assignment.

2006-05-22  Richard Guenther  <rguenther@suse.de>

        Revert
        2006-01-31  Richard Guenther  <rguenther@suse.de>
        Paolo Bonzini  <bonzini@gnu.org>

        * doc/install.texi (--disable-libgcc-math): Document.

2006-05-22  Richard Guenther  <rguenther@suse.de>

        Revert
        2006-01-31  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-msselibm): Document.
        * target.h (expand_library_builtin): New target hook.
        * builtins.c (expand_builtin): Use expand_library_builtin.
        (default_expand_library_builtin): New function.
        * gcc.c (LINK_GCC_MATH_SPEC): Define.
        (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
        (link_gcc_math_spec): Declare.
        (static_specs): Add link_gcc_math_spec.
        * expr.h (default_expand_library_builtin): Declare.
        * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
        (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
        * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
        * config/i386/i386.opt (msselibm): New target option.
        * config/i386/i386.c (ix86_builtin_function_variants): New array.
        (ix86_init_sse_abi_builtins): New function.
        (ix86_expand_library_builtin): Likewise.
        (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
        (override_options): Handle error conditions wrt -msselibm.
        (ix86_builtins): Add function codes for SSE2 ABI builtins.
        (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
        * doc/extend.texi (__builtin_sse2_*): Document new target specific
        builtins.

2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/27420
        * c-common.c (self_promoting_args_p): Skip erroneous args.

        PR c/26818
        * c-decl.c (finish_struct): Skip erroneous fields.

2006-05-22  Nick Clifton  <nickc@redhat.com>

        * config/cris/cris.opt (march): Remove VarExists attribute.
        (max-stackframe=): Likewise.

2006-05-22  Kazu Hirata  <kazu@codesourcery.com>

        * doc/rtl.texi: Fix a typo.
        * see.c: Fix comment typos.

        * tree-ssa-structalias.h (alias_info): Remove num_references.

2006-05-21  Mike Stump  <mrs@apple.com>

        * config/darwin-c.c (BAD): Conditionalize on OPT_Wpragmas.
        (BAD2): Add.
        (darwin_pragma_options): Use BAD instead.
        (darwin_pragma_unused): Likewise.
        (darwin_pragma_ms_struct): Likewise.

2006-05-21  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.md (floatsitf2): Remove constraints.

2006-05-21  Kazu Hirata  <kazu@codesourcery.com>

        PR rtl-optimization/27671
        * simplify-rtx.c (simplify_relational_operation_1): Fix
        simplifications of (eq/ne (xor x y) y) and
        (eq/ne (xor x y) x).

        PR tree-optimization/26622.
        * fold-const.c (fold_ternary) <COND_EXPR>: Call fold_convert
        on arg1.

2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>

        * tree-cfg.c: Prune whitespace.
        (debug_tree_cfg): Point to correct header containing the
        TDF_* defines.

2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>

        PR middle-end/25776
        * cgraphunit.c (verify_cgraph_node): Typo in error message.

2006-05-20  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/25776
        * cgraphunit.c (cgraph_optimize): Don't run ipa passes if error
        or sorry count is non zero.

2006-05-20  Andreas Schwab  <schwab@suse.de>

        * config/pa/pa-linux.h (STRING_ASM_OP): Prepend and append a tab.

2006-05-19  Daniel Berlin  <dberlin@dberlin.org>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/26855

        * df-scan.c (mw_reg_pool, mw_link_pool): New allocation pools for
        multiword refs.
        (df_scan_alloc): Added code to properly handle multiword hard
        registers and add all_blocks parameter.
        (df_scan_free_internal, df_insn_refs_delete, df_ref_record): Added
        code to properly handle multiword hard registers.
        (df_rescan_blocks): Added code to remove deleted blocks from
        bitmap.
        (df_ref_create_structure, df_ref_record): Added code to properly
        handle subregs.
        (df_ref_record_1): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER
        and set DF_REF_PARTIAL.
        (df_defs_record): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER.
        (df_uses_record): Added DF_REF_PARTIAL for subreg.
        (df_scan_add_problem): Added flags parameter.
        (df_ref_create_structure): Changed switching structure.
        (df_bb_refs_record): Fixed case where duplicate artificial refs
        were created.  Changed location of flags.
        (df_record_entry_block_defs): Added code to make stack pointer
        live in entry block.  Refined cases where frame pointer is needed.
        Changed location of flags.
        (df_record_exit_block_uses, df_insn_refs_record): Changed location of flags.
        (df_set_state): Removed function.
        (df_grow_reg_info, df_reg_chain_unlink, df_ref_remove,
        df_insn_create_insn_record, df_insn_refs_delete,
        df_ref_create_structure): Formatting changes.
        * df-core.c (df_mvs_dump, df_set_flags, df_clear_flags,
        df_delete_basic_block): New function.
        (df_init): Changed location of flags.
        (df_add_problem): Added flags parameter and the way flags are
        processed.
        (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref,
        debug_df_chain): Improved debugging output.
        (df_insn_debug, df_insn_uid_debug): Added multiword reg support.
        (df_refs_chain_dump): Removed df parameter.
        (df_iterative_dataflow): Added consistency check.
        (df_prune_to_subcfg): Made public.
        (df_analyze_problem): Added blocks_to_init parameter and made
        public.
        (df_ref_record, df_bb_refs_record, df_mark_reg,
         df_record_exit_block_uses): Whitespace changes.
        (df_dump): Whitespace changes.
        * df.h: Some reordering to remove forward references.
        (df_ref_flags.DF_REF_MW_HARDREG, DF_REF_PARTIAL,
        DF_REF_MUST_CLOBBER, DF_REF_MAY_CLOBBER): New fields.
        (df_ref_flags.DF_REF_CLOBBER): Deleted field.
        (dataflow.flags): New field.
        (df.flag): Deleted field.
        (df_alloc_function): Added additional bitmap parameter.
        (df_dependent_problem_function): New type.
        (df_problem.changeable_flags): New field.
        (df_ref_flags.DF_REF_DIES_AFTER_THIS_USE, DF_SCAN_INITIAL,
        DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC, df_state): Removed.
        (df_mw_hardreg): New struct.
        (DF_INSN_UID_MWS): New macro.
        (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df
        parameter.
        (df_add_problem, df_ru_add_problem, df_rd_add_problem,
        df_lr_add_problem, df_ur_add_problem, df_urec_add_problem,
        df_ri_add_problem, df_scan_add_problem): Added flags parameter.
        (df_set_state): Removed function.
        (df_set_flags, df_clear_flags, df_delete_basic_block) New functions.
        * df-problems.c (df_chain_dump): Removed df parameter.
        (df_ru_alloc, df_rd_alloc, df_lr_alloc, df_ur_alloc,
        df_urec_alloc, df_chain_alloc, df_ri_alloc): Added all blocks
        parameter.
        (df_ru_alloc, df_rd_alloc): Now resets all blocks.
        (df_rd_bb_local_compute_process_def, df_ur_bb_local_compute,
        df_chain_create_bb, df_create_unused_note, df_ri_bb_compute):
        Split DF_REF_CLOBBER into DF_REF_MAY_CLOBBER and
        DF_REF_MUST_CLOBBER cases.
        (df_ru_bb_local_compute_process_def,
        df_rd_bb_local_compute_process_def, df_lr_bb_local_compute,
        df_lr_bb_local_compute, df_ur_bb_local_compute,
        df_chain_create_bb): Made subreg aware.
        (df_ru_bb_local_compute, df_rd_bb_local_compute,
        df_lr_bb_local_compute, df_lr_bb_local_compute,
        df_chain_create_bb): Cleanup to use proper macros.
        (df_ur_local_finalize, df_urec_local_finalize): Removed unnecessary
        code to fixup bitvectors.
        (df_ri_alloc): Cleared lifetime.
        (df_ignore_stack_reg, df_kill_notes, df_set_notes_for_mw,
        df_create_unused_note): New function.
        (df_ri_bb_compute, df_ri_compute): Added code to create/update
        REG_DEAD and REG_UNUSED notes as well as register information.
        (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_urec_dump,
        df_chains_dump): Fixed crash if problem was never run.
        (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem,
        df_ur_add_problem, df_urec_add_problem, df_chain_add_problem,
        df_ri_add_problem): Processes flags in uniform manner.
        (df_ru_alloc, df_ru_local_compute, df_ru_confluence_n, df_ru_free,
        df_ru_dump, df_rd_local_compute, df_rd_confluence_n, df_rd_free,
        df_rd_dump, df_urec_free_bb_info): Formatting changes.
        (df_ru_free_bb_info, df_ru_bb_local_compute, df_ru_dump,
        df_rd_free_bb_info, df_rd_bb_local_compute_process_def,
        df_rd_bb_local_compute, df_rd_dump, df_lr_free_bb_info,
        df_lr_bb_local_compute, df_lr_local_compute, df_ur_free_bb_info,
        df_ur_dump, df_urec_free_bb_info, df_urec_dump,
        df_chain_create_bb, df_ri_bb_compute): Whitespace changes.
        * modulo-sched.c (sms_schedule): Added flag parameter to calls.
        * see.c (see_initialize_data): Ditto.
        * final.c (rest_of_clean_state) Added regstack_completed.
        * rtl.h (regstack_completed): Ditto.
        * reg-stack.c (regstack_completed): Ditto.

2006-05-19  Mike Stump  <mrs@apple.com>

        * c-tree.h (default_conversion): Remove.
        * c-common.h (default_conversion): Add.

2006-05-19  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-vrp.c (valid_value_p): New function.
        (adjust_range_with_scev): Fail if the value of bound is not
        simple.

2006-05-19  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/linux-unwind.h: Include <asm/unistd.h>
        (mips_fallback_frame_state): Use syscall numbers to determine
        the appropriate li instruction for the current ABI.  Only use
        __NR_sigreturn for o32.

2006-05-19  Nicolas Setton  <setton@adacore.com>

        * langhooks.h (struct lang_hooks): Add dwarf_name language hook.
        * langhooks.c (lhd_dwarf_name): New function.
        * langhooks-def.h (lhd_dwarf_name): Declare.
        (LANG_HOOKS_DWARF_NAME): New macro, defaults to lhd_dwarf_name.
        * dwarf2out.c (dwarf2_name): Use the dwarf_name language hook.
        * ada/misc.c (gnat_dwarf_name): New function.
        (LANG_HOOKS_DWARF_NAME): Define to gnat_dwarf_name.

2006-05-19  Richard Sandiford  <richard@codesourcery.com>

        * libgcc2.c (MIN_UNITS_PER_WORD): Move default definition from
        libgcc2.h.
        (LIBGCC2_UNITS_PER_WORD): Provide default definition, using old
        MIN_UNITS_PER_WORD logic from libgcc2.h.  Do nothing if
        LIBGCC2_UNITS_PER_WORD > MIN_UNITS_PER_WORD.
        * libgcc2.h (MIN_UNITS_PER_WORD): Remove definition from here.
        Use LIBGCC2_UNITS_PER_WORD rather than MIN_UNITS_PER_WORD to
        determine the size of Wtype, etc.
        * mklibgcc.in (LIB2_SIDITI_CONV_FUNCS): New argument.
        (swfloatfuncs): New variable.
        (dwfloatfuncs): Likewise.
        (lib2funcs): Remove floating-point conversion functions from
        initial assignment.  Use LIB2_SIDITI_CONV_FUNCS to determine
        the set of conversion routines needed.  Allow entries to specify
        an object name, filename and word size.  Update users accordingly.
        * Makefile.in (libgcc.mk): Pass LIB2_SIDITI_CONV_FUNCS.
        * config/mips/t-mips (LIB2_SIDITI_CONV_FUNCS): Define.

        Revert:

        2006-02-08  Roger Sayle  <roger@eyesopen.com>

        PR target/22209
        * config/fixtfdi.c: New libgcc source file.
        * config/fixunstfdi.c: New source file.
        * config/floatditf.c: New source file.
        * config/floatunditf.c: New souce file.
        * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
        files above instead of config/mips/_tilib.c.
        * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.

2006-05-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/t-hpux-shlib (SHLIB_LINK): Remove `-lc'.
        * pa/pa-hpux11.h (LIB_SPEC): Update comment.

2006-05-18  Mike Stump  <mrs@apple.com>

        Fix up vla, vm and [*] sematics.

        PR c/18740
        PR c/7948
        PR c/25802
        PR c/27673
        * c-tree.h (struct c_arg_info): Add had_vla_unspec.
        (c_vla_unspec_p): Add.
        (c_vla_type_p): Add.
        * c-decl.c (struct c_scope): Add had_vla_unspec.
        (build_array_declarator): Add support for [*].
        (grokdeclarator): Likewise.
        (grokparms): Likewise.
        (get_parm_info): Likewise.
        * c-objc-common.c (c_vla_unspec_p): Likewise.
        * c-objc-common.h (LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P): Likewise.
        * c-parser.c (c_parser_typeof_specifier): Evaluate arguments to
        typeof when argument is a variably modified type not inside sizeof or alignof.
        (c_parser_direct_declarator_inner): Propagate errors.
        (c_parser_sizeof_expression): Add support for [*].
        (c_parser_parms_declarator): Initialize had_vla_unspec.
        (c_parser_parms_list_declarator): Likewise.
        * c-typeck.c (c_vla_type_p): Add.
        (composite_type): Add support for vla compositing.
        (comptypes_internal): Add support for vla compatibility.
        (c_expr_sizeof_expr): Evaluate vla arguments.
        * tree.c (variably_modified_type_p): Update comment for [*].

2006-05-18  Michael Matz  <matz@suse.de>

        PR target/27599
        * config.host: Make assignments to host_xmake_file cumulative.
        * config.host (*-darwin*): Test $host, not $target.

2006-05-12  Stuart Hastings  <stuart@apple.com>

        * config/i386/i386.opt (-mstackrealign): New flag.
        * config/i386/i386.c (force_align_arg_pointer): New attribute.
        (ix86_handle_cconv_attribute): Emit error when
        force_align_arg_pointer attribute collides with too many regparms.
        (ix86_function_regparm): Limit regparms when used with
        force_align_arg_pointer attribute.  (ix86_internal_arg_pointer):
        Support stack-realigning prologue in non-main functions.  Emit
        warning for nested functions under -mstackrealign, emit error for
        nested functions with force_align_arg_pointer attribute.
        * doc/extend.texi (force_align_arg_pointer): Document it.
        * doc/invoke.texi (-mstackrealign): Document it.

2006-05-17  Kazu Hirata  <kazu@codesourcery.com>

        PR rtl-optimization/27477
        * combine.c (try_combine): Don't split a parallel consisting
        of two sets into two individual sets if both sets reference
        cc0.

2006-05-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/arm/arm.opt (target_fpe_name): Remove VarExists.
        * config/rs6000/rs6000.opt (TARGET_NO_FP_IN_TOC): Likewise.

        * doc/options.texi (VarExists): Updated.

2006-05-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * unwind-dw2.c: Add declarations for uw_update_context and
        uw_frame_state_for.
        * pa/hpux-unwind.h (pa_fallback_frame_state): When an export stub is
        detected, advance frame state and context once to skip over stub.

2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>

        PR middle-end/20256
        PR middle-end/26435
        * tree-loop-linear.c (linear_transform_loops): Don't test perfect_nest_p.
        Call rewrite_into_loop_closed_ssa only when something changed.
        * lambda.h (gcc_loopnest_to_lambda_loopnest): Update declaration.
        * lambda-code.c (can_convert_to_perfect_nest): Declared.
        (gcc_loopnest_to_lambda_loopnest): Removed need_perfect_nest parameter.
        Test for perfect_nest_p here.  Fix formating.
        (replace_uses_equiv_to_x_with_y): Fix formating.
        (stmt_uses_op): Removed.
        (can_convert_to_perfect_nest): Removed loopivs parameter.
        Complete the test by checking the scalar dependences.
        (perfect_nestify): Remove the test for can_convert_to_perfect_nest.
        Fix formating.

2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR bootstrap/22541
        From Dan Kegel <dank@kegel.com>:
        * Makefile.in: Strip "dir/../" combinations from SYSTEM_INCLUDE_DIR.

2006-05-17  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (variably_modified_type_p) <ARRAY_TYPE>: Return true
        if the element type is variably modified without recursing.

2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>

        PR middle-end/27332
        * tree-loop-linear.c (try_interchange_loops): Test for
        no data dependences.

2006-05-17  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27548
        * tree-scalar-evolution.c (scev_const_prop): Do not prolong life
        range of ssa names that appear on abnormal edges.
        * tree-ssa-loop-ivopts.c (contains_abnormal_ssa_name_p): Export.
        * tree-flow.h (contains_abnormal_ssa_name_p): Declare.

2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR middle-end/27620
        * expr.c (safe_from_p): Handle CONSTRUCTOR again.

2006-05-17  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27415
        * tree.h (OMP_PARALLEL_COMBINED): Define.
        * gimplify.c (struct gimplify_omp_ctx): Add is_combined_parallel field.
        (new_omp_context): Add is_combined_parallel argument.
        (gimplify_scan_omp_clauses): Add in_combined_parallel argument, adjust
        new_omp_context caller.
        (gimplify_omp_parallel, gimplify_omp_for, gimplify_omp_workshare):
        Adjust gimplify_scan_omp_clauses callers.
        (omp_is_private): Issue errors if iteration variable is firstprivate
        or reduction in the current context.
        * c-parser.c (c_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
        on combined parallel workshare constructs.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        * Makefile.in (GCC_OBJS): Replace options.o with gcc-options.o.
        (gcc-options.o): New rule.

        * optc-gen.awk: Protect variables for gcc-options.o with
        #ifdef GCC_DRIVER/#endif.

2006-05-16  Daniel Berlin <dberlin@dberlin.org>

        Fix PR tree-optimization/27373
        * tree-ssa-forwprop.c: (forward_propagate_addr_expr_1): Add argument.
         (forward_propagate_addr_expr): Update call.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/options.texi: Move the Negative option.

2006-05-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22303
        * tree-ssa-ccp.c (fold_const_aggregate_ref): Handle reads
        from STRING_CSTs.
        (evaluate_stmt): Fall back to fold_const_aggregate_ref, if
        ccp_fold did not simplify the statement.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/26885
        * Makefile.in (GCC_OBJS): New.
        (OBJS-common): Add opts-common.o.
        (xgcc$(exeext)): Replace gcc.o with $(GCC_OBJS).
        (cpp$(exeext)): Likewise.
        (gcc.o): Also depend on opts.h.
        (opts-common.o): New.

        * common.opt (gcoff): Add Negative(gdwarf-2).
        (gdwarf-2): Add Negative(gstabs).
        (gstabs): Add Negative(gstabs+).
        (gstabs+): Add Negative(gvms).
        (gvms): Add Negative(gxcoff).
        (gxcoff): Add Negative(gxcoff+).
        (gxcoff+): Add Negative(gcoff).
        * config/i386/i386.opt (m32): Add Negative(m64).
        (m64): Add Negative(m32).

        * doc/options.texi: Document the Negative option.

        * gcc.c: Include "opts.h".
        (main): Call prune_options after expandargv.

        * optc-gen.awk: Generate common declarations for all flag
        variables in options.c. Output the neg_index field.

        * opts.c (find_opt): Moved to ...
        * opts-common.c: Here. New file.

        * opts.h (cl_option): Add a neg_index field.
        (find_opt): New.
        (prune_options): Likewise.

2006-05-16  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27573
        * omp-low.c (expand_omp_parallel): Don't assert
        .OMP_DATA_I = &.OMP_DATA_O is the first statement in the block,
        instead search for it.

        PR c/27499
        * gimplify.c (gimplify_omp_for): Remove assertion that iteration var
        is signed.

2006-05-16  Andreas Schwab  <schwab@suse.de>

        * doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Add missing @end
        defmac.

2006-05-15  Roger Sayle  <roger@eyesopen.com>

        PR target/26600
        * config/i386/i386.c (legitimate_constant_p) <CONST_DOUBLE>: TImode
        integer constants other than zero are only legitimate on TARGET_64BIT.
        <CONST_VECTOR> Only zero vectors are legitimate.
        (ix86_cannot_force_const_mem): Integral and vector constants can
        always be put in the constant pool.

2006-05-16  DJ Delorie  <dj@redhat.com>

        * crtstuff.c (__dso_handle): Set section from
        TARGET_LBIGCC_SDATA_SECTION if defined.
        * doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Document.
        * config/mips/mips.h (TARGET_LIBGCC_SDATA_SECTION): Define.

2006-05-16  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/27599
        * config.host (i[34567]86-*-mingw*): Append i386/x-mingw32 to
        host_xmake_file.

2006-05-16  Ben Elliston  <bje@au.ibm.com>

        * tree-cfg.c (split_edge_bb_loc): Remove unused variable `src'.

2006-05-15  Per Bothner  <per@bothner.com>

        * tree.c: (last_annotated_node): Use source_locus typedef.
        This permits bootstrapping with --enable-mapped-location.

2006-05-15  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/26830
        * tree-into-ssa.c (struct ssa_name_info): Add age field.
        (info_for_ssa_name, current_info_for_ssa_name_age,
        blocks_to_update): New variables.
        (get_ssa_name_ann): Use info_for_ssa_name instead of SSA_NAME_AUX.
        (clear_ssa_name_info, initialize_flags_in_bb,
        mark_block_for_update): New functions.
        (mark_def_sites, rewrite_stmt): Assert that blocks_to_update is NULL.
        (insert_phi_nodes_for, mark_use_interesting, prepare_block_for_update,
        prepare_def_site_for): Use mark_block_for_update.
        (mark_def_interesting): Assert that the processed block is marked in
        blocks_to_update.  Do not take blocks argument.
        (prepare_use_sites_for, prepare_names_to_update): Do not take blocks
        argument.
        (rewrite_update_init_block, rewrite_update_stmt): Only process
        blocks with statements to rewrite.
        (delete_update_ssa): Do not clear SSA_NAME_AUX.
        (update_ssa): Initialize and free blocks_to_update.  Do not
        clear flags on statements.  Do not use blocks bitmap.
        * tree.h (SSA_NAME_AUX): Removed.
        (struct tree_ssa_name): Removed aux field.
        * print-tree.c (print_node): Do not print SSA_NAME_AUX.

2006-05-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27603
        * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined):
        Do computations in original type.

2006-05-15  Mircea Namolaru  <namolaru@il.ibm.com>

        * see.c: Code style changes such as redundant paranthesis,
        redundant intialization of local variables etc.
        (see_main): Declared now as static.
        * doc/invoke.texi: Update that -fsee is not enabled by
        default at -O3.

2006-05-15  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (check_omp_nesting_restrictions): New function.
        (scan_omp_1): Call it.

        PR middle-end/27416
        * omp-low.c (build_outer_var_ref): If VAR is reference in orphaned
        construct, return *VAR.

2006-05-14  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/27406
        * bt-load.c (migrate_btr_def): Skip the block having abnormal
        edges.

2006-05-14  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/27538
        * combine.c (expand_compound_operation): Call gen_lowpart
        before calling simplify_shift_const.

2006-05-14  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/22563
        * expmed.c (store_fixed_bit_field): When using AND and IOR to store
        a fixed width bitfield, always force the intermediates into psuedos.

2006-05-14  Bernhard Fischer  <aldot@gcc.gnu.org>

        PR 27501
        * mkconfig.sh: Use operator = instead of == for test.

2006-05-13  Nick Clifton  <nickc@redhat.com>

        * dwarf2out.c (dbx_reg_number): Check return value from
        LEAF_REG_REMAP and only use it if it is valid.
        (multiple_reg_loc_descriptor): Likewise.

2006-05-13  Richard Guenther  <rguenther@suse.de>

        * config.host <i[34567]86-*-cygwin*>: Append i386/x-cygwin to
        host_xmake_file.

2006-05-13  Steven Bosscher  <stevenb.gcc@gmail.com>

        * df-core.c (df_bb_regno_last_use_find): Do not look for dataflow
        information attached to non-INSNs such as NOTEs.
        (df_bb_regno_first_def_find, df_bb_regno_last_def_find): Likewise.

2006-05-12  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_const_ok_for_constraint_p): Disallow -4G for
        On contraint.
        * config/s390/s390.md: Adjust comment describing On constraint.

2006-05-11  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (decide_is_function_needed): Don't force always_inline
        to be output at -O0.

2006-05-11  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR middle-end/27384
        * fold-const.c (size_binop): Move sanity check for arguments to
        the beginning of the function.

        PR middle-end/27488
        * fold-const.c (tree_expr_nonnegative_p): Return early on invalid
        expression.

2006-05-11  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27529
        * fold-const.c (fold_unary): Handle intermediate conversion
        to a pointer type like intermediate conversion to an integer
        type in folding of (T1)(T2)var to var.
        Match the code to the comment in the final conversion for
        (T1)(T2)var to (T1)var regarding to type precision.  Rather
        than disallow T1 being of pointer type, assert that both T1
        and var are of pointer type or not.  Make sure not to fall
        over the frontends lazyness wrt array to pointer decay though.

2006-05-10  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (arm_struct_value_rtx): Delete.
        (TARGET_STRUCT_VALUE_RTX): Use the default definition.
        (arm_init_cumulative_args): Always initialize nregs to zero.

2006-05-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27532
        * tree-object-size.c (plus_expr_object_size): Fix typo.

2006-05-10  Kazu Hirata  <kazu@codesourcery.com>

        PR target/24949
        * config/m68k/m68k.md (ashrdi_const32, ashrdi_const32_mem,
        ashrdi_const, ashrdi3): Use a scratch register.

2006-05-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27302
        * fold-const.c (operand_equal_p): For two comparisons,
        try comparison of one comparison code swapped if that yields
        the same code.

2006-05-10  Ben Elliston  <bje@au.ibm.com>

        * tree-pretty-print.c (pretty_print_string): No need to handle
        '\0' as a special character.

        * tree.h: Include "hashtab.h".
        (iterative_hash_expr): Use hashval_t in its prototype.
        * Makefile.in (TREE_H): Add $(HASHTAB_H).

2006-05-09  Steve Ellcey  <sje@cup.hp.com>

        PR bootstrap/26872
        * config.gcc (hppa[12]*-*-hpux10*): Set gas to yes.
        (hppa*64*-*-hpux11*): Ditto.
        (hppa[12]*-*-hpux11*): Ditto.

2006-05-09  David Edelsohn  <edelsohn@gnu.org>

        PR target/26545
        * config/rs6000/aix41.h (TARGET_64BIT): Define.

2006-05-09  Michael Matz  <matz@suse.de>

        * config.host (<i[34567]86-*-*, x86_64-*-*>): Set
        host_extra_gcc_objs and host_xmake_file.
        (<*-*-linux*>): Don't overwrite host_xmake_file.
        * gcc.c (static_spec_functions): Add EXTRA_SPEC_FUNCTIONS.
        * config/i386/i386.h (EXTRA_SPEC_FUNCTIONS): Define.
        (host_detect_local_cpu): Declare.
        (CC1_CPU_SPEC): Add -march=native and -mtune=native cases.
        * config/i386/i386.c (override_options): Handle -mtune=native
        as -mtune=generic.
        * config/i386/x-i386: New file.
        * config/i386/driver-i386.c: New file.
        * doc/invoke.texi (<i386 and x86-64 Options>): Describe
        cpu-type "native".

2006-05-09  Dirk Mueller  <dmueller@suse.de>
        Richard Guenther  <rguenther@suse.de>

        PR middle-end/27498
        * fold-const.c (fold_read_from_constant_string): Relax check
        for matching types to matching modes.

2006-05-09  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/27335
        * loop-unroll.c (peel_loops_completely): Use loops->parray to walk the
        loops.

2006-05-08  Chao-ying Fu  <fu@mips.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-ps-3d.md (scc_ps, s<code>_ps): New patterns.
        (vcondv2sf, sminv2sf3, smaxv2sf3): Likewise.
        * config/mips/mips.md (UNSPEC_SCC): New constant.
        * config/mips/mips-protos.h (mips_expand_vcondv2sf): Declare.
        * config/mips/mips.c (mips_reverse_fp_cond_p): New function.
        (mips_emit_compare): Use it.
        (mips_expand_vcondv2sf): New function.

2006-05-08  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/27093
        * tree-ssa-alias.c (recalculate_used_alone): Mark variables for
        renaming when they become not-used_alone.

2006-05-08  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * hpux-unwind.h (pa_fallback_frame_state): Handle return parameter
        relocation and relocation stubs.

2006-05-08  Eric Christopher  <echristo@apple.com>

        * unwind-dw2-fde-darwin.c (examine_objects): Only check data
        section for ppc.

2006-05-08  Jan Hubicka  <jh@suse.cz>

        PR middle-end/24561
        * cgraphunit.c (decide_is_function_needed): When not optimizing even
        unused static functions are needed.

2006-05-08  Roger Sayle  <roger@eyesopen.com>

        PR target/27158
        * reload.c (find_reloads_toplev): Only return the simplified SUBREG
        of a reg_equiv_constant if the result is a legitimate constant.

2006-05-08  Uros Bizjak  <uros@kss-loka.si>

        PR target/27277
        * config/i386/i386.c (ix86_rtx_costs) [FLOAT_EXTEND]: For
        standard 80387 constants, raise the cost to prevent
        compress_float_constant() to generate load from memory.

2006-05-08  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/constraints.md (c): Fix a typo.

        * see.c, tree-flow-inline.h, tree-phinodes.c: Fix comment
        typos.

2006-05-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/24879
        * config/i386/pmmintrin.h (_mm_monitor): Remove macro. Use
        inline function.
        (_mm_mwait): Likewise.

        * config/i386/sse.md (sse3_mwait): Replace "mwait\t%0, %1" with
        "mwait".
        (sse3_monitor): Make it 32bit only.
        (sse3_monitor64): New. 64bit monitor.

2006-05-07  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR target/27421
        * config/i386/i386.c (classify_argument): Skip fields with invalid
        types.

2006-05-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27409
        * tree-ssa-structalias.c (get_constraint_for_component_ref):
        Do not try to find zero-sized subvars.

2006-05-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27136
        * tree-ssa-loop-niter.c (get_val_for): Correct function
        comment, assert requirements.
        (loop_niter_by_eval): Stop processing if the iterated
        value did not simplify.

2006-05-07  Mircea Namolaru  <namolaru@il.ibm.com>

        * opts.c (flag_see): remove its setting at -O3.

2006-05-07  Richard Earnshaw  <rearnsha@arm.com>

        * genpeep.c (main): Make insn-peep.c depend on flags.h.
        * arm/constraints.md: New file.
        * arm.h (REG_CLASS_FROM_LETTER_P): Delete.
        (CONST_OK_FOR_ARM_LETTER, CONST_OK_FOR_THUMB_LETTER)
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_ARM_LETTER)
        (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT_STR_ARM)
        (CONSTRAINT_LEN, EXTRA_CONSTRAINT_THUMB, EXTRA_CONSTRAINT_STR)
        (EXTRA_MEMORY_CONSTRAINT): Likewise.
        * arm.md: Include constraints.md.
        (thumb_movsi_insn): Use satisfies_constraint_J.
        (movhi, movqi): Use satisfies_constraint_I.

2006-04-29 Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (CRT_BINUTILS_SPECS): Fixed crt* file name
        for atmeg a645 device.

2006-05-06   Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27151
        * tree-vect-transform.c (vectorizable_condition): Punt on
        values that have a different type than the condition.

2006-05-03  Aldy Hernandez  <aldyh@redhat.com>

        PR/21391
        * c-parser.c (c_parser_cast_expression): Only insert casts into
        hash table if pointer.
        * function.c (used_types_insert_helper): Rename from
        used_types_insert.
        (used_types_insert): Call used_types_insert_helper.
        * function.h (used_types_insert): Accept only one argument.

2006-05-05  David Edelsohn  <edesohn@gnu.org>

        * config/rs6000/rs6000.md: Mark all "X" constraints for clobbered
        scratch with output modifier.

2006-05-04  David Edelsohn  <edelsohn@gnu.org>

        PR target/26481
        * config/rs6000/rs6000.md (stmsi_power): Mark clobber constraint
        with output modifier.

2006-05-04  Richard Sandiford  <richard@codesourcery.com>

        PR target/26765
        * config/mips/mips.c (mips_symbolic_address_p): Return true
        for SYMBOL_TLSGD, SYMBOL_TLSLDM, SYMBOL_DTPREL, SYMBOL_TPREL,
        SYMBOL_GOTTPREL, and SYMBOL_TLS.

2006-05-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/14287
        PR tree-optimization/14844
        PR tree-optimization/19792
        PR tree-optimization/21608
        PR tree-optimization/27090
        * tree-ssa-pre.c (try_combine_conversion): New function.
        (compute_avail): After constructing the value-handle
        expression, use try_combine_conversion to combine NOP_EXPRs
        with previous value-handle expressions and use the result if it
        is available.

2006-05-04  Joseph S. Myers  <joseph@codesourcery.com>

        * config/mips/linux64.h (DWARF_OFFSET_SIZE): Remove.

2006-05-04  Jan Hubicka  <jh@suse.cz>

        PR middle-end/25962
        * cgraphunit.c (verify_cgraph_node): Fix cgraph_hash testing.

2006-05-04  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/predicates.md (const01_rtx): Tell generator programs
        that this only matches CONST_INTs.  All users changed to VOIDmode
        operands.

        * config/bfin/bfin.c: Include "optabs.h".
        (bfin_rtx_costs): Some costs for vector operations, to allow combine
        to do more work.
        (enum bfin_builtins): Add a number of fractional and vector builtins.
        (bfin_init_builtins): Likewise.
        (struct builtin_description, bdesc_2arg, bdesc_1arg): New.
        (safe_vector_operand, bfin_expand_binop_builtin,
        bfin_expand_unop_builtin): New functions.
        (bfin_expand_builtin): Handle the new builtins.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
        __ADSPBLACKFIN__.

2006-05-04  Leehod Baruch  <leehod@il.ibm.com>

        * see.c: New file.
        * Makefile.in (OBJS-common): Add see.o.
        (see.o): Add dependencies.
        * common.opt (fsee): New flag for the see optimization was added.
        * opts.c (flag_see): Initialized.
        * passes.c (init_optimization_passes, pass_see): New pass.
        * rtl.h (see_main): Declaration as extern.
        * timevar.def (TV_SEE): New.
        * tree-pass.h (pass_see): Declaration as extern.
        * invoke.texi (-fsee): Document.
        * recog.c (validate_simplify_insn): New function.
        * recog.h (validate_simplify_insn): Declaration as extern.
        * df-problems.c (df_chain_dump): Check for NULL.

2006-05-04  Kenneth Zadeck <zadeck@naturalbridge.com>
            Daniel Berlin  <dberlin@dberlin.org>

        * cfgrtl.c (insert_insn_bb_end_new): New function.
        * basic-block.h (insert_insn_bb_end_new): Declaration as extern.

2006-05-04  Leehod Baruch  <leehod.baruch@weizmann.ac.il>

        * df.h (struct web_entry): Moved from web.c.
        (union_defs): Declaration as extern.
        (unionfind_root): Likewise.
        (unionfind_union): Likewise.
        * web.c (struct web_entry): Moved to df.h.
        (unionfind_root): Remove static declaration.
        (unionfind_union): Likewise.
        (union_defs): Likewise and generalize to use callback function.
        (web_main): Update arguments for union_defs function call.

2006-05-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26447
        * tree-ssa-pre.c (realify_fake_stores): For necessary loads
        produce SSA_NAME copies before the store stmt to avoid
        breaking exception handling.

2006-05-04  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27388
        * gimplify.c (omp_is_private): If var is shared in some outer context,
        return false instead of true.  Stop searching on parallel context
        boundary.

2006-05-03  Alexandre Oliva  <aoliva@redhat.com>

        PR java/8260
        * coverage.c: Use get_gcov_unsigned_t() instead of
        unsigned_type_node all over.

2006-05-02  Andrew MacLeod  <amacleod@redhat.com>

        PR tree-optimization/27381
        * tree-phinodes.c (remove_phi_arg_num): When moving a phi argument,
        maintain the same immediate_use links.
        * tree-ssa-operands.c (dump_immediate_uses_for): Show iteration marker
        node rather than segfaulting.

2006-05-03  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/27395
        * gimplify.c (gimplify_scan_omp_clauses): Compare OMP_CLAUSE_CODE
        rather than TREE_CODE to OMP_CLAUSE_REDUCTION.  Set also GOVD_SEEN
        bit for OMP_CLAUSE_REDUCTION_PLACEHOLDER.

2006-05-02  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/26626
        * tree-ssa-structalias.c (compute_points_to_sets): For now, solve
        always.
        * tree-ssa-operands.c (access_can_touch_variable): Allow
        typecasting through union pointers.

2006-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR c++/26943
        * omp-low.c (maybe_lookup_decl_in_outer_ctx): New function.
        (build_outer_var_ref): Use maybe_lookup_decl_in_outer_ctx
        to find if var will be a global variable even in the nested context.
        (omp_copy_decl): Only check for global variable at the end, it might
        be overridden in outer contexts.
        (scan_sharing_clauses): For global variables don't create a field.
        (lower_rec_input_clauses): Do nothing for global shared variables.
        Emit a barrier at the end of ILIST if there were any decls in both
        firstprivate and lastprivate clauses.
        (lower_send_clauses): Do nothing for global variables except for
        COPYIN.

2006-05-02  Zdenek Dvorak <dvorakz@suse.cz>

        * tree.c (unsigned_type_for, signed_type_for): Make sure a type
        of the correct signedness is returned.

2006-05-02  Jeff Law  <law@redhat.com>

        PR tree-optimization/27364
        * tree-vrp.c (vrp_int_const_binop): Fix detection of overflow from
        multiply expressions.

2006-05-02  Tom Tromey  <tromey@redhat.com>

        * tree-flow-inline.h (op_iter_init_phiuse): Fixed typo.

2006-05-02  Kazu Hirata  <kazu@codesourcery.com>

        PR target/27387
        * arm.c (arm_output_mi_thunk): Use pc-relative addressing when
        -mthumb -fPIC are used.

2006-05-02  Stanislaw Skowronek  <skylark@linux-mips.org>
            Joshua Kinard  <kumba@gentoo.org>

        PR target/25871
        * config/mips/mips.h (TRAMPOLINE_TEMPLATE): Avoid 32-bit moves
        with 64-bit pointers.

2006-05-02  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (add_minipool_forward_ref): Check if insn
        and pool overlap.
        (create_fix_barrier): Check that a suitable barrier location is
        found.
        (arm_reorg): Include ftmp->address in allowable range of addresses.

2006-05-02  David Billinghurst <David.Billinghurst@riotinto.com>

        PR ada/27366
        * ada/env.c (__gnat_clearenv): Use unsetenv() to clear environment
        on Cygwin.

2006-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27337
        * gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
        around RESULT_DECL for result passed by reference.
        (gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
        * omp-low.c (use_pointer_for_field): Don't look at
        DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
        (scan_omp_1): Call remap_decl on RESULT_DECLs.
        (lower_rec_input_clauses): Don't allocate VLA memory for the second
        time or var for passing by reference for
        OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
        TREE_ADDRESSABLE variables when passing by reference.

        * omp-low.c (dump_omp_region): Fix output formatting.

        PR middle-end/27328
        * omp-low.c (remove_exit_barrier): Handle NULL exit_bb.
        (expand_omp_parallel): Likewise.
        * tree-cfg.c (move_sese_region_to_fn): Likewise.

        PR middle-end/27325
        * omp-low.c (lower_omp_sections): Call maybe_catch_exception
        on statement list containing also constructors and destructors.
        (lower_omp_single, lower_omp_for, lower_omp_parallel): Likewise.

        PR middle-end/27310
        * except.c (duplicate_eh_regions): Fix clearing of
        cfun->eh->region_array entries.

2006-05-01  DJ Delorie  <dj@redhat.com>

        * configure.ac (gcc_cv_nm): Don't use an in-tree nm if
        build!=host.
        (gcc_cv_objdump): Likewise.
        * configure: Regenerated.

2006-05-01  Kazu Hirata  <kazu@codesourcery.com>

        PR target/27374
        * config/arm/vfp.md (*arm_movdi_vfp): Correct the output
        templates for case 3 and 4.

2006-05-01  DJ Delorie  <dj@redhat.com>

        * vec.c: Include bconfig.h when appropriate.
        * Makefile.in (build/vec.o): Adjust dependencies.
        * mkconfig.sh: Make sure config.h isn't used for build machine
        compiles.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-into-ssa.c (phis_to_rewrite, blocks_with_phis_to_rewrite): New
        variables.
        (mark_phi_for_rewrite): New function.
        (insert_phi_nodes_for, mark_use_interesting): Call
        mark_phi_for_rewrite.
        (rewrite_update_phi_arguments): Traverse only phis in phis_to_rewrite.
        (update_ssa): Initialize and free phis_to_rewrite.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/27291
        * loop-doloop.c (add_test, doloop_modify): Handle the case condition is
        folded to a constant.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27283
        * tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
        not whole # of iteration descriptions.
        (niter_for_exit): Return just # of iterations.  Fail if # of iterations
        uses abnormal ssa name.
        (niter_for_single_dom_exit): Ditto.
        (find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
        return just the number of iterations.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27144
        * tree-ssa-loop-niter.c (derive_constant_upper_bound): New function.
        (record_estimate): Only record constant upper bound.
        (infer_loop_bounds_from_undefined): Call
        compute_estimated_nb_iterations just once.
        (proved_non_wrapping_p): Renamed to ...
        (n_of_executions_at_most): ... this.  Expect bound to be a constant.
        (convert_step_widening, scev_probably_wraps_p): Call
        n_of_executions_at_most instead of proved_non_wrapping_p.
        (substitute_in_loop_info): Do not replace values in bounds.
        * cfgloop.h (struct nb_iter_bound): Remove "additional" field.  Update
        comments.

2006-05-01  Richard Henderson  <rth@redhat.com>

        PR c/27358
        * c-parser.c (c_parser_skip_to_end_of_block_or_statement): Move after
        c_parser_skip_to_pragma_eol.  Convert to switch statement.  Handle
        CPP_PRAGMA.

2006-05-01  Roger Sayle  <roger@eyesopen.com>

        * c-typeck.c (parser_build_binary_op): Don't call the function
        unsigned_conversion_warning to spot operand/result type overflow.
        (build_binary_op): Instead, call convert_and_check instead of
        convert to report the problem when the operands are promoted.
        * c-common.c (unsigned_conversion_warning): Make static.
        * c-common.h (unsigned_conversion_warning): Delete prototype.

2006-05-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26726
        * tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
        problem ...
        (find_interesting_uses_address): ... we work around here
        by folding INDIRECT_REFs in the substituted base.

2006-05-01  Diego Novillo  <dnovillo@redhat.com>

        * omp-low.c (dump_omp_region): Add newlines.

2006-04-30  Roger Sayle  <roger@eyesopen.com>

        * common.opt (Woverflow): New command line option.
        * c-common.c (constant_expression_warning): Check warn_overflow.
        (overflow_waring): Pass OPT_Woverflow to warning.
        (unsigned_conversion_warning): Likewise.
        (convert_and_check): Likewise.
        * doc/invoke.texi: Document new command line option.

2006-04-30  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_override_options): Enable
        TARGET_NO_FP_IN_TOC for section anchors.
        (optimization_options): Enable section anchors for all
        non-"Objective" languages.

2006-04-28  Eric Christopher  <echristo@apple.com>

        * config/darwin-c.c (darwin_ms_struct): Move this
        (darwin_set_default_type_attributes): and this...
        * config/darwin.c: ... here.
        * config/darwin.h (darwin_ms_struct): Declare.

2006-04-28  Andrew MacLeod  <amacleod@redhat.com>

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Fix assert clause.

2006-04-28  Roger Sayle  <roger@eyesopen.com>

        PR c/25309
        * c-typeck.c (struct spelling): Make I an unsigned HOST_WIDE_INT.
        (push_array_bounds): Delete prototype.  Change BOUNDS argument to
        an unsigned HOST_WIDE_INT.
        (print_spelling): Use HOST_WIDE_INT_PRINT_UNSIGNED to output the
        array index.
        (really_start_incremental_init): No need to call convert because
        bitsize_zero_node is already of type bitsizetype.
        (push_init_level): Extract the value of constructor_index as an
        unsigned HOST_WIDE_INT quantity, using tree_low_cst.
        (process_init_element): Likewise.

2006-04-28  Joseph S. Myers  <joseph@codesourcery.com>

        * gcc.c (process_command): Add program name to GCC_EXEC_PREFIX
        value before passing to make_relative_prefix.

2006-04-28  Alan Modra  <amodra@bigpond.net.au>

        PR middle-end/27260
        * builtins.c (expand_builtin_memset): Expand val in original mode.

2006-04-27  Eric Christopher  <echristo@apple.com>

        * target-def.h (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Bracket
        with #ifndef/#endif.
        * config/darwin-c.c (darwin_ms_struct): New.
        (darwin_pragma_ms_struct): Ditto.
        (darwin_set_default_type_attributes): Ditto.
        * config/darwin-protos.h (darwin_pragma_ms_struct): Declare.
        * config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS):
        Register ms_struct pragma.
        * config/i386/darwin.h (REGISTER_TARGET_PRAGMAS): Declare.
        (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Ditto.
        * config/rs6000/rs6000.c (rs6000_set_default_type_attributes): Call
        darwin_set_default_type_attributes if TARGET_MACHO.

2006-04-27  Andrew MacLeod  <amacleod@redhat.com>

        PR tree-optimization/26854
        * tree-vrp.c (remove_range_assertions): Use new Immuse iterator.
        * doc/tree-ssa.texi: Update immuse iterator documentation.
        * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Use new iterator.
        * tree-ssa-dom.c (propagate_rhs_into_lhs): Use new iterator.
        * tree-flow-inline.h (end_safe_imm_use_traverse, end_safe_imm_use_p,
        first_safe_imm_use, next_safe_imm_use): Remove.
        (end_imm_use_stmt_p): New.  Check for end of immuse stmt traversal.
        (end_imm_use_stmt_traverse): New.  Terminate immuse stmt traversal.
        (move_use_after_head): New.  Helper function to sort immuses in a stmt.
        (link_use_stmts_after): New.  Link all immuses in a stmt consescutively.
        (first_imm_use_stmt): New.  Get first stmt in an immuse list.
        (next_imm_use_stmt): New.  Get next stmt in an immuse list.
        (first_imm_use_on_stmt): New.  Get first immuse on a stmt.
        (end_imm_use_on_stmt_p): New.  Check for end of immuses on a stmt.
        (next_imm_use_on_stmt): New.  Move to next immuse on a stmt.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Use new iterator.
        * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use new iterator.
        (perfect_nestify): Use new iterator.
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Use new
        iterator.
        * tree-flow.h (struct immediate_use_iterator_d): Add comments.
        (next_imm_name): New field in struct immediate_use_iterator_d.
        (FOR_EACH_IMM_USE_SAFE, BREAK_FROM_SAFE_IMM_USE): Remove.
        (FOR_EACH_IMM_USE_STMT, BREAK_FROM_IMM_USE_STMT,
        FOR_EACH_IMM_USE_ON_STMT): New immediate use iterator macros.
        * tree-cfg.c (replace_uses_by): Use new iterator.
        * tree-ssa-threadedge.c (lhs_of_dominating_assert): Use new iterator.
        * tree-ssa-operands.c (correct_use_link): Remove.
        (finalize_ssa_use_ops): No longer call correct_use_link.

2006-04-27  Stuart Hastings  <stuart@apple.com>

        * config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): New.
        * config/t-darwin (crt3.o): Use it.
        * config/rs6000/rs6000.c (rs6000_initialize_trampoline): Remove
        'pmode', use Pmode instead of SImode for SYMBOL_REF.
        * config/rs6000/rs6000.md (call_indirect_nonlocal_sysv,
        call_nonlocal_sysv, call_value_indirect_nonlocal_sysv,
        call_value_nonlocal_sysv): Suffix with the "P" macro for 32/64
        support.

2006-04-27  Roger Sayle  <roger@eyesopen.com>

        * expmed.c (store_fixed_bit_field): If we're not optimizing for
        size, force the intermediate into a new pseudo rather instead of
        performing both a bitwise AND and a bitwise IOR in memory.

2006-04-27  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/26685
        * params.def (PARAM_MAX_CSE_INSNS): Correct typo that named
        this one "max-flow-memory-locations".

2006-04-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/25148
        * tree-vrp.c (compare_values): Remove code dealing with
        comparisons against type min/max value.  Honour overflow
        and negative constants in code dealing with comparisons
        of plus and minus expressions.
        (value_inside_range): Use fold_binary with LE_EXPR and
        GE_EXPR rather than compare_values.

2006-04-27  Dirk Mueller  <dmueller@suse.de>

        * config/i386/xmmintrin.h (_mm_shuffle_pi16): Declare
        prototype for SSE.

2006-04-26  Kenneth Zadeck <zadeck@naturalbridge.com>

        * basic-block.h (safe_insert_insn_on_edge): Removed.
        * cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Removed.

2006-04-26  David Edelsohn  <edelsohn@gnu.org>
            Paolo Bonzini  <bonzini@gnu.org>

        PR middle-end/27282
        * combine.c (simplify_and_const_int_1): Use gen_int_mode.
        (simplify_and_const_int): Same.

2006-04-26  Aldy Hernandez  <aldyh@redhat.com>

        * tree-ssa-dse.c (dse_optimize_stmt): Remove unused variable USE.

2006-04-26  Jakub Jelinek  <jakub@redhat.com>

        PR c/26171
        * cgraph.c (cgraph_varpool_finalize_decl): Don't call
        cgraph_varpool_assemble_pending_decls if -fopenmp, unless
        cgraph_global_info_ready.

        PR middle-end/26913
        * tree-cfg.c (find_outermost_region_in_block): Handle RESX_EXPR.

        PR c/25996
        * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for if
        either decl or init is error_mark_node.

        PR middle-end/25989
        * tree-flow.h (struct omp_region): Add sched_kind.
        * omp-low.c (expand_parallel_call): Use region->inner->sched_kind
        instead of extracting omp for data.
        (expand_omp_for): Save extracted sched_kind.

2006-04-25  Roger Sayle  <roger@eyesopen.com>

        * expmed.c (store_bit_field): Also check whether the bitsize is
        valid for the machine's "insv" instruction before moving the
        target into a pseudo for use with the insv.
        * config/i386/predicates.md (const8_operand): New predicate.
        * config/i386/i386.md (extv, extzv, insv): Use the new
        const8_operand predicate where appropriate.

2006-04-25  DJ Delorie  <dj@redhat.com>

        * doc/install.texi (Specific): Clarify that this is not a list of
        supported hosts or targets.

2006-04-25  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/26725
        * cfgrtl.c (rtl_redirect_edge_and_branch_force): Set the source
        block's BB_DIRTY flag.

2006-04-25  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (size_of_locs): Don't fill dw_loc_addr if there
        are no branches.

        * dwarf2asm.c (dw2_asm_output_data): Don't generate RTL just
        to print an integer.

2006-04-25  David Edelsohn  <edelsohn@gnu.org>

        * varasm.c (align_variable): New function.
        (get_block_for_decl): Apply align_variable to DECL before
        calculating section information.
        (assemble_variable): Split out alignment computation.

2006-04-25  Andreas Krebbel  <krebbel1@de.ibm.com>

        * expmed.c (store_bit_field): Handle paradoxical subregs on big endian
        machines.

2006-04-25  Bernd Schmidt  <bernd.schmidt@analog.com>

        * genmodes.c (make_vector_mode): Allow making VECTOR_MODE_INT of a
        MODE_PARTIAL_INT mode.
        * config/bfin/bfin-modes.def: Add V2PDI and V2SI.
        * config/bfin/bfin.c (print_operand): Add macflag and mac/msu modifiers
        for CONST_INTs.
        (hard_regno_mode_ok): V2PDImode is ok for accumulators.
        * config/bfin/bfin.h (CLASS_MAX_NREGS, HARD_REGNO_NREGS): Handle
        V2PDImode.
        * config/bfin/predicates.md (const01_operand, vec_shift_operand):
        New predicates.
        * config/bfin/bfin.md (UNSPEC_MUL_WITH_FLAG, UNSPEC_MAC_WITH_FLAG):
        New constants.
        (MACFLAG_NONE, MACFLAG_T, MACFLAG_FU, MACFLAG_TFU, MACFLAG_IS,
        MACFLAG_IU, MACFLAG_W32, MACFLAG_M, MACFLAG_S2RND, MACFLAG_ISS2,
        MACFLAG_IH): Likewise.
        (movstricthi_1): Renamed from "*movstricthi".
        (load_accumulator, load_accumulator_pair, movsi_insv, insv,
        ssaddsi3, sssubsi3, ssnegsi2, signbitssi2, smaxhi3, sminhi3,
        abshi2, neghi2, ssneghi2, signbitshi2, movhi_low2high,
        movhi_high2high, movhi_low2low, movhi_high2low, movhiv2hi_low,
        movhiv2hi_high, composev2hi, movv2hi_hi, movv2hi_hi_low,
        movv2hi_hi_high, ssaddhi3, sssubhi3, ssaddv2hi3, sssubv2hi3,
        addsubv2hi3, subaddv2hi3, ssaddsubv2hi3, sssubaddv2hi3,
        sublohiv2hi3, subhilov2hi3, sssublohiv2hi3, sssubhilov2hi3,
        addlohiv2hi3, addhilov2hi3, ssaddlohiv2hi3, ssaddhilov2hi3,
        mulhisi_ll, mulhisi_lh, mulhisi_hl, mulhisi_hh, ssnegv2hi2,
        ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3, packv2hi,
        flag_mulhi, flag_mulhisi_parts, flag_machi, flag_machi_acconly,
        flag_macinithi, flag_macinit1hi, flag_mulv2hi, flag_mulv2hi_parts,
        flag_macv2hi_parts, flag_macv2hi_parts_acconly,
        flag_macinitv2hi_parts, flag_macinit1v2hi_parts): New patterns.

        * doc/rtl.texi (ss_ashift): Improve wording.

2006-04-24  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (verify_marks_clear): New.
        (prune_unused_types): Call verify_marks_clear initially, not
        prune_unmark_dies.

2006-04-24  Bernd Schmidt  <bernd.schmidt@analog.com>

        * rtl.def (SS_ASHIFT, SS_NEG): New codes.
        * doc/rtl.texi: Document them.
        * simplify-rtx.c (simplify_unary_operation,
        simplify_binary_operation_1): Don't abort when we see them.

2006-04-24  Mark Mitchell  <mark@codesourcery.com>

        Revert:
        2006-04-23  Mark Mitchell  <mark@codesourcery.com>
        * configure.ac: Completely disregard languages that are not
        enabled.
        * configure: Regenerated.

2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
        Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27236
        * tree-inline.c (copy_body_r): Make sure to copy
        TREE_THIS_VOLATILE flag.

2006-04-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26869
        * tree-complex.c (update_parameter_components): Don't handle
        unused parameters which have no default def.

2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
        Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27218
        * tree-inline.c (expand_call_inline): Strip useless type
        conversions for the return slot address.

2006-04-24  Richard Guenther  <rguenther@suse.de>

        * cfgloop.h (struct loops): Remove unused field array.  Reorder
        state after num.
        (LOOP_PREFETCH): Remove.

2006-04-24  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22525
        * value-prof.c (tree_mod_pow2): Remove unnecessary temporary
        variable, adjust types of generated expressions.

2006-04-23  H.J. Lu  <hongjiu.lu@intel.com>

        * Makefile.in (c-convert.o): Add dependency on $(TARGET_H)
        (tree-vect-patterns.o): Likewise.
        (jump.o): Likewise.
        (cselib.o): Likewise.
        (loop-doloop.o): Likewise.
        (regclass.o): Likewise.
        (reload1.o): Likewise.
        (explow.o): Replace target.h with $(TARGET_H).
        (ipa-prop.o): Likewise.
        (ipa-cp.o): Likewise.
        (ipa-inline.o): Likewise.
        (reorg.o): Likewise.
        (reg-stack.o): Likewise.

2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-tailcall.c (pass_tail_recursion): Use gate_tail_calls too.

2006-04-23  Mark Mitchell  <mark@codesourcery.com>

        * print-tree.c (print_node): Print DECL_BIT_FIELD_TYPE.

        * configure.ac: Completely disregard languages that are not
        enabled.
        * configure: Regenerated.

        PR c++/26534
        * c-common.h (c_build_bitfield_integer_type): Declare.
        * c-decl.c (c_build_bitfield_integer_type): Move to ...
        * c-common.c (c_build_bitfield_integer_type): ... here.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

        PR target/21283
        * config/fr30/fr30.md (define_split): Avoid calling gen_lowpart on
        a SImode SUBREG of a floating point register after no_new_pseudos.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

        * config/fr30/fr30.md (addsi_small_int): Use REGNO_PTR_FRAME_P to
        identify potentially eliminable registers to additionally catch
        VIRTUAL_INCOMING_ARGS_REGNUM.
        (addsi3): Update the conditions on when to use addsi_small_int.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

        PR target/16641
        * config/fr30/fr30.h (GO_IF_LEGITIMATE_ADDRESS): Check REGNO for
        STACK_POINTER_RTX and FRAME_POINTER_RTX instead of comparing the
        rtx to stack_pointer_rtx or frame_pointer_rtx directly.

2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (range_predecessor): Use operand_equal_p
        as the predicate for equality.
        (range_successor): Likewise.

2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

        Revert:
        * config/soft-fp/op-common.h: Fix a typo.

2006-04-22  Frank Ch. Eigler  <fche@redhat.com>

        PR libmudflap/26864
        * common.opt (flag_mudflap_threads): Overload flag_mudflap.
        * tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.

2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

        * config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
        Fix comment typos.
        * doc/tm.texi: Fix a typo.

2006-04-21  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (struct die_struct): Document that die_sib makes
        a circular linked list.
        (FOR_EACH_CHILD): New.
        (reverse_die_lists): Delete.
        (reverse_all_dies): Delete.
        (add_dwarf_attr): Correct documentation.
        (remove_child_with_prev): New.
        (remove_child_TAG): Update for change to die_struct, use
        remove_child_with_prev.
        (add_child_die): Update for change to die_struct.
        (splice_child_die): Use remove_child_with_prev and add_child_die.
        (print_die): Use FOR_EACH_CHILD.
        (die_checksum): Likewise.
        (assign_symbol_names): Likewise.
        (output_location_lists): Likewise.
        (build_abbrev_table): Likewise.
        (calc_die_sizes): Likewise.
        (mark_dies): Likewise.
        (unmark_dies): Likewise.
        (unmark_all_dies): Likewise.
        (output_die): Likewise.
        (prune_unused_types_mark): Likewise.
        (prune_unused_types_walk): Likewise.
        (same_die_p): Update for change to die_struct.
        (break_out_includes): Likewise.
        (prune_unused_types_prune): Likewise.
        (add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
        (prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
        it's already clear.
        (dwarf2out_finish): Don't call reverse_all_dies.

2006-04-21  Eric Christopher  <echristo@apple.com>

        * df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
        in comments and function names.

2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/25875
        * c-typeck.c (digest_init): Robustify.

        * c-typeck.c (pop_init_level): Simplify.

2006-04-21  Steve Ellcey  <sje@cup.hp.com>

        * config/pa/t-pa64: Add dependencies on $(GCC_PASSES).

2006-04-21  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_override_options): Error on iWMMXt and
        hardware floating point.

2006-04-21  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
        NON_FLOAT_REGS.

2006-04-21  Nick Clifton  <nickc@redhat.com>

        * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
        OPT_EXTRA_PARTS.

2006-04-21  Alan Modra  <amodra@bigpond.net.au>

        PR target/27230
        * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
        C++ lang type in traceback table for Objective-C++.

        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.

2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (asm_preferred_eh_data_format): Reformat.

2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR mudflap/26789
        * tree-mudflap.c (mudflap_finish_file): Skip function when there
        were errors.  Remove check for erroneous objects.

2006-04-20  Jeff Law  <law@redhat.com>

        PR tree-optimization/26854
        * tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
        checking for zero or one use.
        * tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
        * tree-cfgcleanup.c (merge_phi_nodes): Similarly.
        * tree-ssa-reassoc.c (negate_value): Similarly.
        (reassociate_bb): Similarly.

2006-04-20  Jakub Jelinek  <jakub@redhat.com>

        * c-pretty-print.c (pp_c_direct_abstract_declarator): Print
        TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
        than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).

2006-04-20  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
        fp regs if the last fp arg doesn't fit in regs.

2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/27182
        * config/sh/sh.md (movsicc_true+3): Tweak condition for the case
        that the last insn has the REG_INC note.

2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        PR c/26774
        * stor-layout.c (update_alignment_for_field): Do not align
        ERROR_MARK nodes.
        (place_union_field): Place union field at the start of the union.
        (place_field): Move ERROR_MARK check later, and use the current
        allocation position to maintain monotonicity.

2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>

        * dominance.c: Include timevar.h.
        (calculate_dominance_info): Use TV_DOMINANCE.
        * timevar.def (TV_DOMINANCE): New timevar.
        * Makefile.in (dominance.o): Add TIMEVAR_H dependency.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR rtl-optimization/14261
        * ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
        move would be an INSV insn.
        (noce_process_if_block): Don't optimize if the destination is a
        ZERO_EXTRACT which can't be handled by noce_emit_move_insn.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md: Add comments with the instructions emitted
        by an insn pattern if macros are used.

2006-04-19  Alan Modra  <amodra@bigpond.net.au>

        PR rtl-optimization/26026
        * fold-const.c (fold_binary): Optimize div and mod where the divisor
        is a known power of two shifted left a variable amount.

2006-04-18  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (prune_unused_types_update_strings): Don't add strings
        to hash table twice when the debug_str section has SECTION_MERGE.

2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>

        * config/soft-fp: New directory.  From glibc.
        * config/soft-fp/t-softfp: New.
        * config/soft-fp/README: New.
        * mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
        * Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
        (libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
        (LIBGCC_DEPS): Add $(SFP_MACHINE).
        * config.gcc: Use rs6000/t-fprules-fpbit or
        rs6000/t-fprules-softfp and soft-fp/t-softfp together with
        rs6000/t-fprules.
        * config/rs6000/sfp-machine.h: New.  Based on glibc.
        * config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
        New.
        * config/rs6000/t-fprules: Remove fp-bit rules.
        * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
        * config/rs6000/t-linux64: Likewise.  Remove duplicates from
        LIB2FUNCS_EXTRA.  Remove fp-bit rules.
        (softfp_wrap_start, softfp_wrap_end): New.

2006-04-18  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.h (PTRDIFF_TYPE): Define.

2006-04-18  Devang Patel  <dpatel@apple.com>

        * doc/invoke.texi (-Wuninitialized): Clarify -O connection.

2006-04-18  Nick Clifton  <nickc@redhat.com>

        * config/sh/t-symbian: Add rule to build sh-c.o
        * config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
        of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
        (sh_symbian_encode_section_info): Likewise.

2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>

        * builtins.c (expand_builtin_strcmp): Cover label definition of
        do_libcall with HAVE_cmpstrnsi.

2006-04-18  Kazu Hirata  <kazu@codesourcery.com>

        * function.c (temp_slots_at_level, max_slot_level): Use VEC
        instead of VARRAY.
        * function.h (temp_slot_p): New.
        (function): Change the type of x_used_temp_slots to
        VEC(temp_slot_p,gc) *.

2006-04-18  Nick Clifton  <nickc@redhat.com>

        * config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
        flag_strength_reduce.

        * doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR target/27117

        Partial revert of revision 112637
        2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
                    Dale Johannesen  <dalej@apple.com>

        PR target/19653
        * regclass.c (struct reg_pref): Update documentation.
        (regclass): Set prefclass to NO_REGS if memory is the best option.
        (record_reg_classes): Cope with a prefclass set to NO_REGS.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/26821
        * tree-ssa-math-opts.c (get_constant_one): New.
        (insert_reciprocals): Use it.

2006-04-17  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (free_AT): Delete.
        (remove_AT): Update string ref counts.
        (remove_child_TAG): Don't call free_die.
        (free_die): Delete.
        (break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
        or DW_TAG_GNU_EINCL.
        (prune_unused_types_walk_attribs): Reset string refcounts.
        (prune_unused_types_update_strings): New.
        (prune_unused_types_prune): Don't make unnecessary stores.  Don't
        call free_die.