[gcc.git] / gcc / ChangeLog

2005-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/rs6000/rs6000.md (copysignsf3): New expand.
        (copysigndf3): Likewise.

2005-01-31  Steven Bosscher  <stevenb@suse.de>

        * recog.c (constrain_operands): Only look for earlyclobber operand
        conflicts if an '&' constraint was seen.

2005-01-31  Marc Espie <espie@openbsd.org>

        * config.gcc: Don't include embedded systems fragment, switches default
        debugging format to ELF.
        * config/i386/openbsdelf.h: Add DBX_REGISTER_NUMBER since we no 
        longer pick it up there.

2005-01-31  Dale Johannesen  <dalej@apple.com>
        
        * config/rs6000/darwin.md (movsf_low_di):  Make work.
        (movdf_low_di):  Make work.

2005-01-31  Dale Johannesen  <dalej@apple.com>

        * config/rs6000/darwin-tramp.asm (__trampoline_setup):
        Make work for 64 bit.

2005-01-31  Roger Sayle  <roger@eyesopen.com>
            Dale Johannesen  <dalej@apple.com>

        PR middle-end/19650
        * fold-const.c (fold_binary_op_with_conditional_arg):
        Make types match original operands, before STRIP_NOPS.

2005-01-31  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/linux-unwind.h (struct gcc_vregs): New.
        (struct gcc_regs): Rename from gcc_pt_regs.  Add more regs.
        (struct gcc_sigcontext): Delete.  Merge contents to..
        (struct gcc_ucontext): ..here.
        (get_sigcontext): Delete.
        (get_regs): New function, like get_sigcontext but return regs ptr.
        64-bit version finds regs from r1 to support vdso.
        (ppc_linux_aux_vector): New function.
        (ppc_fallback_frame_state): Modify for get_regs.  Restore fprs
        and vector regs.

2005-01-31  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (vect_analyze_offset_expr): Use ssizetype instead
        sizetype.
        (vect_get_base_and_offset): Use ssizetype instead sizetype. Remove
        redundant fold. Fix misalignment for MINUS_EXPR.
        (vect_compute_data_ref_alignment): Use ssizetype instead sizetype.
        (vect_analyze_pointer_ref_access): Likewise.
        (vect_get_memtag_and_dr): Likewise.

2005-01-31  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (absnegsf2_mixed): Remove all of the # hackery.
        (absnegsf2_sse, absnegsf2_i387, absnegdf2_mixed, absnegdf2_sse,
        absnegdf2_i387, absnegxf2_i387): Likewise.

2005-01-31  Richard Henderson  <rth@redhat.com>

        PR 19696
        * optabs.c (expand_copysign_absneg): New.
        (expand_copysign_bit): Split out from ...
        (expand_copysign): ... here.  Use expand_copysign_absneg.

2005-01-30  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19697
        * config/pa/pa.md (anddi3, iordi3): On HPPA64, disallow an integer
        constant as the second operand and a register as the third.

2005-01-31  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/19704
        * config/i386/i386.c (ix86_function_ok_for_sibcall):  Also check
        that dllimport'd functions do not use all call-clobbered registers
        to pass parameters.

2005-01-30  Richard Henderson  <rth@redhat.com>

        PR 19696
        * optabs.c (expand_absneg_bit): Split out from expand_unop and
        expand_abs_nojump and generalize.  Use operand_subword and
        emit_no_conflict_block.  Support large modes.
        (expand_abs_nojump): Use it.  Use HONOR_SIGNED_ZEROS to fall
        back to maximum.
        (expand_unop): Likewise.  Use HONOR_SIGNED_ZEROS to fall back
        negation to subtraction.
        (expand_copysign): Check that the format has signed zeros.
        Use operand_subword and emit_no_conflict_block.  Support large modes.

2005-01-30  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/19624
        
        * Makefile.in (tree-ssa-pre.o): Add CFGLOOP_H.
        * tree-ssa-pre.c: Add cfgloop.h.
        Update comment.
        (pre_stats): New member, constified.
        (inserted_exprs): New static variable.
        (NECESSARY): New macro.
        (create_expression_by_pieces): Fold the expression, and
        mark it as defaulting to not necessary. Also put in
        inserted_exprs.
        (fully_constant_expression): New function.
        (insert_into_preds_of_block): Modify to not insert phis when we
        are playing with induction variables.
        Push phis onto the inserted_exprs vector, and mark them as not
        necessary by default.
        (insert_aux): Call fully_constant_expression on eprime.
        If all edges produce the same value, mark it constant.
        (mark_operand_necessary): New function.
        (remove_dead_inserted_code): New function.
        (init_pre): Init loop optimizer to get loop info.
        (fini_pre): Free loop_optimizer, and inserted_exprs vec.
        (execute_pre): Commit edge inserts, then remove dead code.

2005-01-30  Richard Henderson  <rth@redhat.com>

        * rtl.c (rtx_equal_p): No early exit for CONST_VECTOR.
        * varasm.c (const_rtx_hash_1): Handle CONST_VECTOR.

2005-01-30  Richard Henderson  <rth@redhat.com>

        PR target/19700
        * config/i386/i386.c (ix86_expand_copysign): New.
        (ix86_split_copysign_const): New.
        (ix86_split_copysign_var): Rename from ix86_split_copysign, 
        rearrange op1/nmask operands.
        * config/i386/i386-protos.h: Update.
        * config/i386/i386.md (copysignsf3): Use ix86_expand_copysign.
        (copysigndf3): Likewise.
        (copysignsf3_const, copysigndf3_const): New.
        (copysignsf3_var): Rename from copysignsf3, split out splitter
        and fix split predicate for X constraint.
        (copysigndf3_var): Similarly.

2005-01-30  Kazu Hirata  <kazu@cs.umass.edu>

        * optabs.c, doc/c-tree.texi, doc/install.texi, doc/md.texi,
        doc/passes.texi, doc/rtl.texi, doc/sourcebuild.texi,
        doc/tm.texi, doc/tree-ssa.texi: Update copyright.

2005-01-29  Richard Henderson  <rth@redhat.com>

        PR target/19690
        * config/i386/i386.md (movdf_nointeger, movdf_integer): Fix ordering
        of # and * in constraints.

2005-01-29  Richard Henderson  <rth@redhat.com>

        PR middle-end/19689
        * expr.c (store_field): Don't strip sub-mode cast when the input
        data is even smaller.

2005-01-29  Richard Henderson  <rth@redhat.com>

        PR middle-end/19687
        * expr.c (categorize_ctor_elements_1): Check for CONSTRUCTOR of a
        union being empty.

2005-01-29  Richard Henderson  <rth@redhat.com>

        * combine.c (make_field_assignment): Fix argument order
        to gen_int_mode.

2005-01-29  Richard Guenther <richard.guenther@uni-tuebingen.de>

        PR tree-optimization/15791
        * fold-const.c (extract_array_ref): New function.
        (fold): Fold comparisons between &a[i] and &a[j] or
        semantically equivalent trees.

2005-01-29  Jeff Law  <law@redhat.com>

        * gcse.c (insert_expr_in_table): Revamp handling of available
        and anticipatable occurrence lists to avoid unnecessary list
        walking.
        (insert_set_in_table): Similarly.

2005-01-29  Joseph S. Myers  <joseph@codesourcery.com>

        * c-common.c (fix_string_type): Just use c_build_qualified_type to
        build string type.
        (c_build_qualified_type): Build qualified array types with
        TYPE_MAIN_VARIANT pointing to corresponding unqualified type.
        * c-decl.c (c_make_fname_decl): Build unqualified array type
        before qualified type.
        (grokdeclarator): Use TYPE_MAIN_VARIANT of typedef type if element
        type is qualified, not just if type itself is.  Don't apply
        qualifiers to array type when declarator is processed.  Apply
        qualifiers to field type whether or not it is an array type.
        Don't handle array types specially for applying qualifiers to
        variables.
        * c-typeck.c (composite_type): Build unqualified element type and
        array type when forming composite of array types.
        (common_pointer_type, comptypes, comp_target_types,
        type_lists_compatible_p, build_indirect_ref, build_array_ref,
        convert_for_assignment): Don't apply TYPE_MAIN_VARIANT to array
        types.
        (type_lists_compatible_p): Cache TREE_VALUE (args1) and TREE_VALUE
        (args2) in variables a1 and a2.

2005-01-29  Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c (n_elements_made, max_elements_made): Remove.
        (insert): Don't touch n_elements_made.
        (cse_main): Don't touch n_elements_made or max_elements_made.

2005-01-28  Stephane Carrez  <stcarrez@nerim.fr>

        PR target/15384
        * config/m68hc11/t-m68hc11-gas (dp-bit.c): Fix typo causing a
        configuration part of dp-bit.c to be lost.

2005-01-28  Roger Sayle  <roger@eyesopen.com>

        * expmed.c (expand_mult_highpart_optab): When attempting to use
        a non-widening multiplication in a wider mode, the operands need
        to be converted (zero or sign extended) to that mode.

2005-01-28  Ian Lance Taylor  <ian@airs.com>

        PR middle-end/16558
        PR middle-end/19583
        * gimple-low.c (block_may_fallthru): TRY_FINALLY_EXPR only falls
        through if both operands fall through.

2005-01-28  Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c (fold_rtx) <PC>: Don't optimize.

2005-01-28  Jeff Law  <law@redhat.com>

        * fold-const.c (fold, case CEIL_MOD_EXPR): Optimize 0 % X.
        (case FLOOR_MOD_EXPR, ROUND_MOD_EXPR, TRUNC_MOD_EXPR): Similarly.

2005-01-28  Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c (cse_reg_info_free_list, cse_reg_info_used_list,
        cse_reg_info_used_list_end): Remove.
        (cse_reg_info_list, cse_reg_info_list_free): New.
        (get_cse_reg_info): When allocating an instance of
        cse_reg_info, add it to the beginning of the cse_reg_info_list
        list.  Remove code to maintain cse_reg_info_used_list.
        (new_basic_block): Reset the free list to the beginning of
        cse_reg_info_list.

2005-01-28  Richard Sandiford  <rsandifo@redhat.com>

        * config/frv/frv.c (bdesc_2arg): Remove __MDPACKH.
        (frv_init_builtins): Change its prototype to take 4 uhalf arguments.
        (frv_expand_mdpackh_builtin): New function.
        (frv_expand_builtin): Use it to expand __MDPACKH.
        * doc/extend.texi (__MDPACKH): Update documentation.

2005-01-28  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.c (ix86_expand_fp_absneg_operator): Use
        SSE_FLOAT_MODE_P for use_sse computation.

2005-01-28  Ralf Corsepius  <ralf.corsepius@rtems.org>

        PR target/19663
        * config/sparc/rtemself.h (LINK_GCC_C_SEQUENCE_SPEC): undefine.

2005-01-27  Richard Henderson  <rth@redhat.com>

        * builtins.c (expand_builtin_copysign): New.
        (expand_builtin): Call it.
        * genopinit.c (optabs): Add copysign_optab.
        * optabs.c (init_optabs): Initialize it.
        (expand_copysign): New.
        * optabs.h (OTI_copysign, copysign_optab): New.
        (expand_copysign): Declare.

        * config/alpha/alpha.md (UNSPEC_COPYSIGN): New.
        (copysignsf3, ncopysignsf3, copysigndf3, ncopysigndf3): New.

        * config/i386/i386.c (ix86_build_signbit_mask): Split from ...
        (ix86_expand_fp_absneg_operator): ... here.
        (ix86_split_copysign): New.
        * config/i386/i386-protos.h: Update.
        * config/i386/i386.md (UNSPEC_COPYSIGN): New.
        (copysignsf3, copysigndf3): New.

        * config/ia64/ia64.md (UNSPEC_COPYSIGN): New.
        (copysignsf3, ncopysignsf3): New.
        (copysigndf3, ncopysigndf3): New.
        (copysignxf3, ncopysignxf3): New.
        * config/ia64/ia64.c (rtx_needs_barrier): Handle UNSPEC_COPYSIGN.

2005-01-27  Arend Bayer  <arend.bayer@web.de>
            Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c: (find_best_addr): Don't call copy_rtx before calling
        fold_rtx.  Save cost recomputation if fold_rtx did nothing.
        (fold_rtx) <ASM_OPERANDS>: Don't do anything if INSN is
        NULL_RTX.

2005-01-27  Jeff Law  <law@redhat.com>

        * tree-into-ssa.c (ssa_rewrite_initialize_block): Do not register
        definitions of SSA_NAMEs which are not being rewritten.
        (rewrite_ssa_into_ssa): Only initialize the current definition
        of an SSA_NAME if that SSA_NAME has been marked for rewriting.
        If checking is enabled, assert that SSA_NAME_AUX is clear for all
        SSA_NAMEs before returning.

2005-01-27  Kazu Hirata  <kazu@cs.umass.edu>

        * c-common.def, c-dump.c, c-gimplify.c, c-objc-common.c,
        cfgexpand.c, dbxout.c, function.h, opts.c, tree-flow-inline.h,
        tree-ssa-operands.h, tree-ssa-threadupdate.c, tree-tailcall.c,
        config/avr/avr.md, config/cris/aout.h, config/cris/cris.h,
        config/mips/iris6.h, config/sh/sh.c: Update copyright.

2005-01-27  Steven Bosscher  <stevenb@suse.de>

        PR middle-end/17278
        * opts.c (decode_options): Move flag_thread_jumps from -O1 and
        higher to -O2 and higher.  Likewise for tree PRE.
        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Only iterate at -O2
        and better.

2005-01-27  Ian Lance Taylor  <ian@airs.com>

        PR middle-end/19583
        * gimple-low.c (try_catch_may_fallthru): New static function.
        (block_may_fallthru): Handle TRY_CATCH_EXPR.
        * tree-inline.c (expand_call_inline): Don't warn about reaching
        the end of a non-void function being inlined if the function uses
        a return slot.

2005-01-27  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.h (CALL_USED_REGISTERS): Fix comment pastos.

        PR c/18946
        * c-decl.c (warn_if_shadowing): Handle old_decl error_mark_node.
        (pushdecl): Only use DECL_FILE_SCOPE_P if DECL_P.
        (implicitly_declare): Handle error_mark_node.

2005-01-27  Richard Henderson  <rth@redhat.com>

        PR tree-opt/14329
        * tree.h (struct tree_decl): Add debug_expr_is_from.
        (DECL_DEBUG_EXPR_IS_FROM): New.
        (DECL_DEBUG_EXPR): Rename from DECL_DEBUG_ALIAS_OF.
        * dwarf2out.c (dwarf2out_var_location): Update to match.
        * tree-outof-ssa.c (create_temp): Likewise.
        * var-tracking.c (track_expr_p): Likewise.
        * tree-sra.c (instantiate_element): Set DECL_DEBUG_EXPR.
        * c-objc-common.c (c_tree_printer) <'D'>: Handle DECL_DEBUG_EXPR.
        * toplev.c (default_tree_printer): Likewise.

2005-01-27  Alexandre Oliva  <aoliva@redhat.com>

        * config/frv/frv.c (frv_class_likely_spilled_p): Add GR8_REGS,
        GR9_REGS, GR89_REGS, FDPIC_FPTR_REGS, FDPIC_REGS.

2005-01-27  Steven Bosscher  <stevenb@suse.de>

        * tree.h (SWITCH_COND, SWITCH_BODY, SWITCH_LABELS, CASE_LOW,
        CASE_HIGH, CASE_LABEL, ASM_STRING, ASM_OUTPUTS, ASM_INPUTS,
        ASM_CLOBBERS): Add tree checks.

        * c-common.h (SWITCH_TYPE): Rename to SWITCH_STMT_TYPE.
        (SWITCH_STMT_COND, SWITCH_STMT_BODY): New.
        * c-common.def (SWITCH_STMT): Update to match.
        * c-common.c (c_do_switch_warnings): Use SWITCH_STMT accessor
        macros instead of SWITCH_EXPR ones.
        * c-dump.c (c_dump_tree): Likewise.
        * c-gimplify.c (gimplify_switch_stmt): Likewise.
        * c-typeck.c (c_start_case, do_case, c_finish_case): Likewise.

        * doc/c-tree.texi (SWITCH_STMT): Update accessor macro names.

2005-01-27  Alan Modra  <amodra@bigpond.net.au>

        * unwind-dw2.c (execute_stack_op): Add missing cases for
        DW_OP_shl, DW_OP_shr, DW_OP_shra, DW_OP_xor.

2005-01-27  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config.gcc (Obsolete configurations): Remove 'dummy', add
        sparclite-*-coff*, sparclite-*-elf*, sparc86x-*-elf* and
        sparc-*-openbsd*.

2005-01-26  Diego Novillo  <dnovillo@redhat.com>

        PR tree-optimization/19633
        * tree-ssa-alias.c (ptr_is_dereferenced_by): Also handle
        CALL_EXPRs.
        (maybe_create_global_var): Do not create .GLOBAL_VAR if there
        are no call-clobbered variables.
        * tree-outof-ssa.c (check_replaceable): Return false for calls
        with side-effects.

2005-01-26  Ulrich Weigand  <uweigand@de.ibm.com>

        * dbxout.c (dbxout_symbol_location): Resolve constant pool references
        even for variables with NULL DECL_INITIAL.

2005-01-26  Stuart Hastings  <stuart@apple.com>

        * gimplify.c (shortcut_cond_expr): Re-compute side-effects.

2005-01-26  Richard Henderson  <rth@redhat.com>

        PR middle-end/18008
        * c-decl.c (finish_struct): Set DECL_MODE after resetting a
        field's type.
        * expr.c (store_field): Strip conversions to odd-bit-sized types
        if the destination field width matches.

2005-01-26  Richard Henderson  <rth@redhat.com>

        * c-decl.c, expmed.c, expr.c: Revert last change.

2005-01-26  Richard Henderson  <rth@redhat.com>

        PR middle-end/18008
        * c-decl.c (finish_struct): Set DECL_MODE after resetting a
        field's type.
        * expmed.c (store_fixed_bit_field): Create a paradoxical subreg
        if we don't need the bits above those present in the current mode.
        * expr.c (store_field): Strip conversions to odd-bit-sized types
        if the destination field width matches.

2005-01-26  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/iris6.h (ENDFILE_SPEC): Don't link in irix-csr.o if
        either -ffast-math or -funsafe-math-optimizations is in use.

2005-01-26  Marek Michalkiewicz  <marekm@amelek.gda.pl>

        PR target/19293
        PR target/19329
        * config/avr/avr.c (notice_update_cc): Only set condition code for
        ashrqi3 if shift count > 0.
        (out_shift_with_cnt): Handle shift count <= 0 as a no-op.
        (ashlqi3_out, ashlhi3_out, ashlsi3_out, ashrqi3_out, ashrhi3_out,
        ashrsi3_out, lshrqi3_out, lshrhi3_out, lshrsi3_out): Handle shift
        count <= 0 as a no-op, and shift count >= width by copying zero
        or sign bit to all bits of the result.
        * config/avr/avr.md (all shifts): Add alternatives for zero shift
        count, with attribute "length" set to 0 and "cc" set to "none".

2005-01-26  Aldy Hernandez  <aldyh@redhat.com>

        * doc/invoke.texi: Document -mTLS.

        * testsuite/gcc.target/frv/all-tls-global-dynamic.c: New.
        * testsuite/gcc.target/frv/all-tls-initial-exec.c: New.
        * testsuite/gcc.target/frv/all-tls-initial-exec-pic.c: New.
        * testsuite/gcc.target/frv/all-tls-local-dynamic.c: New.
        * testsuite/gcc.target/frv/all-tls-local-dynamic-plt.c: New.
        * testsuite/gcc.target/frv/all-tls-local-dynamic-plt-pic.c: New.
        * testsuite/gcc.target/frv/all-tls-local-exec.c: New.
        * testsuite/gcc.target/frv/all-tls-local-exec-TLS.c: New.

        * configure.ac: Check for a TLS capable gas.

        * configure: Regenerate.

2005-01-26  Richard Henderson  <rth@redhat.com>

        PR middle-end/18008
        * combine.c (make_field_assignment): Simplify store to zero_extract
        from a source with an overlapping mask.

2005-01-26  Aldy Hernandez  <aldyh@redhat.com>

        2004-11-11  Eric Christopher  <echristo@redhat.com>

        * config/frv/frv.md: Add fr400_integer automaton. Don't
        allow TYPE_MUL, TYPE_MACC, or TYPE_CUT to issue in parallel
        to TYPE_MACC.

2005-01-26  Steven Bosscher  <stevenb@suse.de>

        PR middle-end/16585
        * cfgbuild.c (make_edges): Do not clear or set
        current_function_has_computed_jump.
        * function.h (struct function): Remove the has_computed_jump field.
        (current_function_has_computed_jump): Do not define.
        * sched-rgn.c (is_cfg_nonregular): Return true if a basic block ends
        in a computed jump.  Ignore current_function_has_computed_jump.

2005-01-26  Richard Henderson  <rth@redhat.com>

        PR middle-end/19515
        * expr.c (categorize_ctor_elements): New argument p_must_clear.
        (categorize_ctor_elements_1): Likewise.  Detect a union that isn't
        fully initialized.
        (mostly_zeros_p): Update for new categorize_ctor_elements argument.
        * gimplify.c (gimplify_init_constructor): Likewise.  Only shove
        objects into static storage if they have more than one non-zero value.
        * tree.h (categorize_ctor_elements): Update decl.

2005-01-26  Steven Bosscher  <stevenb@suse.de>

        PR middle-end/19616     
        * tree.h (CALL_EXPR_TAILCALL): Add comment.
        * calls.c (check_sibcall_argument_overlap_1): Revert the change
        to this function from 2004-07-10.
        * tree-tailcall.c (suitable_for_tail_opt_p): Do not consider the
        the current function for tail call optimizations if the address
        of one of it its arguments is taken.

2005-01-26  Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c (fold_rtx): Call equiv_constant only when necessary.

2005-01-26  Bernd Schmidt  <bernd.schmidt@analog.com>

        * function.c (expand_function_end): If current_function_calls_alloca,
        emit stack restore in a place that is reached when the function falls
        through at the end.

2005-01-26  Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in (../$(build_subdir)/fixincludes/fixincl): Add dummy
        rule to avoid matching inappropriate suffix rule.

2005-01-26  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/19241
        * tree-inline.c (copy_body_r): Do not walk subtrees after substituting.

2005-01-26  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.h (LIB_SPEC) <sim*>: Use -lsyslinux, not
        -lsyssim.  Wrap -lc -lsyssim in --start-group --end-group instead
        of doubling.
        (STARTFILE_SPEC): Add crti.o, before crtbegin.o.
        <sim*>: Always use crt1.o, regardless of N in simN.
        <!sim>: Drop support for -pg and -p variants; always use crt0.o.
        (ENDFILE_SPEC): Add crtn.o, after crtend.o.
        (CRT_CALL_STATIC_FUNCTION): Remove.
        * config/cris/aout.h (STARTFILE_SPEC): <!melinux && sim*>: Always
        use crt1.o, regardless of N in simN.
        <!sim>: Drop support for -pg and -p variants; always use crt0.o.
        (LIB_SPEC): Do not define; default to the one in config/cris/cris.h.
        (CRIS_CPP_SUBTARGET_SPEC) <melinux && !nostdinc>: Remove special
        case isystem setting.
        (MAX_OFILE_ALIGNMENT): Correct to 32, not 16.

2005-01-25  Ian Lance Taylor  <ian@airs.com>

        * gimple-low.c (block_may_fallthru): Correct handling of
        SWITCH_EXPR--may fall through if SWITCH_LABELS is NULL.

2005-01-26  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.h (CPP_SPEC): Adjust the various mtune=
        handlers to match indentation; nested under the mtune=* handler.
        Similar for mcpu= and march=.

2005-01-25  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/mips/linux.h (LIB_SPEC): Remove -rpath-link.
        * config/mips/linux64.h (LIB_SPEC): Likewise.
        * config/mn10300/linux.h (LIB_SPEC): Likewise.
        * config/sh/linux.h (LIB_SPEC): Likewise.

2005-01-25  Aldy Hernandez  <aldyh@redhat.com>

        * config/frv/frv.c (frv_legitimize_tls_address): New.
        (TARGET_HAVE_TLS): Define.
        (FRV_SYMBOL_REF_TLS_P): Define.
        (frv_override_options): Handle new register classes.
        (frv_legitimate_address_p): Reject tls addresses.
        (frv_legitimize_address): Handle TLS addresses.
        (gen_inlined_tls_plt): New.
        (gen_tlsmoff): New.
        (frv_legitimize_tls_address): New.
        (unspec_got_name): Add TLS entries.
        (got12_operand): Add R_FRV_TLSMOFF12 case.
        (frv_emit_move): Fixup TLS addresses.
        (frv_emit_movsi): Legitimize TLS addresses.

        * config/frv/frv.h (MASK_BIG_TLS): New.
        (TARGET_BIG_TLS): New.
        (HAVE_AS_TLS): Define.
        (TARGET_SWITCHES): Add -mTLS and -mtls options.
        (enum reg_class): Add GR8_REGS, GR9_REGS, GR89_REGS.
        (REG_CLASS_NAMES): Same.
        (REG_CLASS_CONTENTS): Same.
        (CONSTRAINT_LEN): New.
        (REG_CLASS_FROM_CONSTRAINT): New.
        (PREDICATE_CODES): Add symbolic_operand.

        * config/frv/frv.md (define_constants): Add UNSPEC_GETTLSOFF,
        UNSPEC_TLS_LOAD_GOTTLSOFF12, UNSPEC_TLS_INDIRECT_CALL,
        UNSPEC_TLS_TLSDESC_LDD, UNSPEC_TLS_TLSDESC_LDD_AUX,
        UNSPEC_TLS_TLSOFF_LD, UNSPEC_TLS_LDDI, UNSPEC_TLSOFF_HILO,
        R_FRV_GOTTLSOFF_HI, R_FRV_GOTTLSOFF_LO, R_FRV_TLSMOFFHI,
        R_FRV_TLSMOFFLO, R_FRV_TLSMOFF12, R_FRV_TLSDESCHI,
        R_FRV_TLSDESCLO, R_FRV_GOTTLSDESCHI, R_FRV_GOTTLSDESCLO, GR8_REG,
        GR9_REG, GR14_REG, LRREG.
        (type): Add load_or_call attribute.
        ("load_or_call"): New reservation.
        ("call_gettlsoff"): New.
        ("tls_indirect_call"): New.
        ("tls_load_gottlsoff12"): New.
        ("tlsoff_hilo"): New.
        ("tls_tlsdesc_ldd"): New.
        ("tls_tlsoff_ld"): New.
        ("tls_lddi"): New.

        * config/frv/frv-protos.h (symbolic_operand): Protoize.

        2005-01-25  Alexandre Oliva  <aoliva@redhat.com>

        * config/frv/frv.h (ASM_OUTPUT_DWARF_DTPREL): Define.
        * config/frv/frv-protos.h (frv_output_dwarf_dtprel): Declare.
        * config/frv/frv.c (TLS_BIAS): Define.
        (frv_output_dwarf_dtprel): New.

2005-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/19579
        * ifcvt.c (noce_try_cmove_arith): If emitting instructions to set up
        both A and B, see if they don't clobber registers the other expr uses.

2005-01-25  J"orn Rennecke <joern.rennecke@st.com>

        * real.c (do_add): Initialize signalling and canonical members.

        * real.c (real_from_integer): Zero out destination.

2005-01-18  Jan Hubicka  <jh@suse.cz>

        PR tree-optimize/19337
        * tree-inline.c (initialize_inlined_parameters): Copy
        saved_static_chain_decl only.

2005-01-25  Richard Henderson  <rth@redhat.com>

        PR target/19556
        PR target/19584
        * config/i386/i386.c (x86_inter_unit_moves): Zero.
        (ix86_preferred_reload_class): Rewrite fp-constant section, with
        80387 enabled, to return a proper subclass.  Return the subset that
        overlaps with GENERAL_REGS for PLUS.
        * config/i386/i386.md (movsi_1, movdi_2): Set type to "mmx" for pxor.

2005-01-25  Richard Henderson  <rth@redhat.com>

        PR middle-end/19609
        * tree-complex.c (expand_complex_div_wide): Use the correct formulae.

2005-01-25  Roger Sayle  <roger@eyesopen.com>

        * expmed.c (choose_multiplier): Change interface to return the
        multiplier lowpart as an rtx instead of an unsigned HOST_WIDE_INT.
        (expand_divmod): Update calls to choose_multiplier.

2005-01-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/19330
        * expmed.c (extract_bit_field): Use adjust_address instead of
        gen_lowpart when op0 is a MEM.

2005-01-24  Steven Bosscher  <stevenb@suse.de>

        * cfgexpand.c (expand_gimple_tailcall): Fix typo.

2005-01-24  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/irix-csr.c: New file.
        * config/mips/t-iris6 (irix-csr.o): New rule to build it.
        (EXTRA_MULTILIB_PARTS): Add irix-csr.o.
        * config/mips/iris6.h (ENDFILE_SPEC): Include it in n32 and n64
        executables.

2005-01-24  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR bootstrap/19364
        * config.gcc (sparc-*-elf*): Remove sol2.h, sparc/sol2.h and
        sparc/elf.h, add sparc/sp-elf.h.
        (sparc-*-rtems*): Likewise.
        (sparclite-*-elf*): Remove sol2.h, sparc/sol2.h, sparc/elf.h and
        tm-dwarf2.h, add sparc/sp-elf.h.
        (sparc86x-*-elf): Likewise.
        (sparc64-*-elf*): Remove sol2.h, sparc/sol2.h and tm-dwarf2.h.
        * config/sparc/liteelf.h (TARGET_SUB_OS_CPP_BUILTINS): Rename into
        TARGET_OS_CPP_BUILTINS.
        * config/sparc/sp86x-elf (TARGET_SUB_OS_CPP_BUILTINS): Likewise.
        * config/sparc/rtemself.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.
        Undefine it.
        * config/sparc/openbsd64.h (NO_IMPLICIT_EXTERN_C): Undefine.
        * config/sparc/sp64-elf.h (NO_IMPLICIT_EXTERN_C): New macro.
        (SWITCH_TAKES_ARG): Likewise.
        (LOCAL_LABEL_PREFIX): Likewise.
        (ASM_GENERATE_INTERNAL_LABEL): Likewise.
        (TARGET_N_FORMAT_TYPES): Delete.
        (TARGET_FORMAT_TYPES): Likewise.
        (ASM_DECLARE_FUNCTION_SIZE): Likewise.
        * config/sparc/elf.h: Delete.
        * config/sparc/sp-elf.h: New file.

2005-01-24  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-flow-inline.h (phi_arg_from_edge): Remove.
        * tree-flow.h: Remove the corresponding prototype.
        * tree-ssa-operands.h, tree-ssa-threadupdate.c, tree-ssa.c,
        tree-vectorizer.c: Use dest_idx instead of phi_arg_from_edge.

2005-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/17751
        * config/rs6000/rs6000.c (rs6000_file_start): Create toc section
        for AIX ABI or ELF -fPIC.
        (rs6000_emit_load_toc_table): Don't create toc_section here.
        (rs6000_xcoff_file_start): Nor here.

2005-01-24  J"orn Rennecke <joern.rennecke@st.com>

        * sh.c (ra.h): Don't #include.
        (hard_regs_intersect_p): New function, resurrected from ra.c.

        * sh.c: Fix 1996 Copyright.

2005-01-24  Richard Henderson  <rth@redhat.com>
            Aldy Hernandez  <aldyh@redhat.com>

        * regrename.c (note_sets): Handle subregs.

2005-01-24  Joseph S. Myers  <joseph@codesourcery.com>

        PR bootstrap/18058
        * genconditions.c (write_header, write_conditions): Elide file if
        not GCC >= 3.0.1.

2005-01-24  Kazu Hirata  <kazu@cs.umass.edu>

        * c-opts.c, expmed.c, gengtype.c, tree-complex.c,
        config/arm/iwmmxt.md, config/avr/avr.c, config/s390/s390.h:
        Update copyright.

2005-01-24  Jakub Jelinek  <jakub@redhat.com>

        * builtins.c (get_pointer_alignment, gimplify_va_arg_expr,
        expand_builtin_printf, expand_builtin_fprintf,
        expand_builtin_sprintf): Use POINTER_TYPE_P instead TREE_CODE
        checking against POINTER_TYPE.
        (validate_arglist): Handle POINTER_TYPE code by checking
        POINTER_TYPE_P.

2005-01-24  Paolo Bonzini  <bonzini@gnu.org>

        * rtlanal.c (non_rtx_starting_operands, for_each_rtx_1,
        init_rtlanal): New.
        (for_each_rtx): Call for_each_rtx_1.
        * rtl.h (init_rtlanal): Declare.
        * toplev.c (backend_init): Call init_rtlanal.

2005-01-24  Jakub Jelinek  <jakub@redhat.com>

        * flow.c (propagate_one_insn): Formatting.

        PR middle-end/19551
        * flow.c (libcall_dead_p): Be more conservative if unsure.
        If there are any instructions between insn and call, see if they are
        all dead before saying the libcall is dead.

2005-01-24  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.md (*extendsfdf2_sse): Use "nonimmediate_operand"
        operand constraint for operand 0.

2005-01-23  Richard Henderson  <rth@redhat.com>

        PR 19486
        * tree-complex.c (expand_complex_div_wide): Set EDGE_FALLTHRU on
        edges leading to join block.

2005-01-23  Roger Sayle  <roger@eyesopen.com>

        * expmed.c (expand_mult_highpart): Make static.  Change type of
        constant multiplier argument from unsigned HOST_WIDE_INT to rtx.
        (expand_divmod): Updates calls to expand_mult_highpart by using
        gen_int_mode to pass a CONST_INT rtx.
        * rtl.h (expand_mult_highpart): Remove prototype.

2005-01-23  Kazu Hirata  <kazu@cs.umass.edu>

        * flow.c (regset_bytes, regset_size): Remove.

        * cfganal.c: Fix a reference to Harvey's paper.

2005-01-23  Steven Bosscher  <stevenb@suse.de>

        PR rtl-optimization/19464
        * tree-optimize.c (init_tree_optimization_passes): Add one more
        copyrename pass just before out-of-ssa.

2005-01-23  Joseph S. Myers  <joseph@codesourcery.com>

        PR bootstrap/18058
        * recog.c (recog_memoized): Don't define if GENERATOR_FILE.
        * ggc-none.c (ggc_free): Define.

2005-01-23  Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c (max_reg, max_insn_uid): Remove.
        (cse_main): Don't access max_reg or max_insn_uid.

        * c-common.c (explicit_flag_signed_bitfields,
        lang_statement_code_p, lang_expand_function_end): Remove.
        * c-common.h: Remove the corresponding declarations.
        * c-opts.c (c_common_handle_option): Remove all write access
        to explicit_flag_signed_bitfields.

        * cgraph.c (cgraph_varpool_n_nodes): Remove.
        (cgraph_varpool_node): Don't access cgraph_varpool_n_nodes.
        * cgraph.h: Remove the corresponding declaration.

        * gcse.c (null_pointer_info): Remove.

2005-01-23  Roger Sayle  <roger@eyesopen.com>
            Eric Botcazou  <ebotcazou@libertysurf.fr>

        * combine.c (simplify_logical): Only simplify logical expressions
        of the form ior(and(x,y),z) by the inverse distributive law if the
        result is cheaper than the original.

2005-01-23  Kazu Hirata  <kazu@cs.umass.edu>

        * alias.c, c-common.h, c-incpath.c, c-incpath.h, expr.c,
        fold-const.c, gimplify.c, params.h, tree-data-ref.c,
        tree-if-conv.c, tree-nested.c, tree-outof-ssa.c,
        tree-ssa-dom.c, tree-vectorizer.c, tree.def, config/darwin.c,
        config/freebsd-spec.h, config/arm/arm.h,
        config/h8300/h8300.md, config/i386/i386.md,
        config/i386/predicates.md, config/i386/sse.md,
        config/ia64/ia64.c, config/ip2k/ip2k.c, config/s390/s390.c,
        config/vax/vax.md: Fix comment typos.  Follow spelling
        conventions.

2005-01-23  Steven Bosscher  <stevenb@suse.de>

        * gengtype.c (walk_type): Produce `not equal to' compares for loop
        tests, instead of `less than'.

2005-01-23  Richard Sandiford  <rsandifo@redhat.com>

        * function.c (assign_parm_setup_block): When creating a new stack slot
        for a parameter, get its alignment from the parameter's DECL_ALIGN
        rather than the type's TYPE_ALIGN.  Make sure that the parameter
        is at least word aligned.

2005-01-22  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19378
        * config/avr/avr.c (avr_hard_regno_mode_ok): Rewrite.

2005-01-22  Richard Henderson  <rth@redhat.com>

        PR target/19506
        * config/i386/i386.md (movsfcc_1_sse_max): Use nonimmediate_operand
        in both compare operands.
        (movdfcc_1_sse_max): Likewise.
        (movsfcc_1_sse): Likewise.  Add earlyclobber for scratch.
        (movdfcc_1_sse): Likewise.
        * config/i386/i386.c (ix86_split_sse_movcc): Emit copies into the
        scratch register as needed.

2005-01-22  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (smaxsf3): Fix mnemonic typo.

        * config/i386/i386.c (ix86_prepare_fp_compare_args): Fix is_sse test.

2005-01-22  Richard Henderson  <rth@redhat.com>

        * genopinit.c (optabs): Use smin/smax for floating point too.
        * doc/md.texi: Update to match.  Clarify that floating point
        results are undefined for +0/-0 and NaN.
        * doc/rtl.texi: Likewise.
        * rtl.def (SMIN, SMAX): Likewise
        * tree.def (MIN_EXPR, MAX_EXPR): Likewise.

        * config/alpha/alpha.md (smaxdf3, smindf3, smaxsf3, sminsf3): Add
        leading 's' to the name.
        * config/ia64/ia64.md (smaxsf3, sminsf3, smaxdf3, smindf3,
        smaxxf3, sminxf3): Likewise.
        * config/rs6000/rs6000.md (smaxdf3, smindf3, smaxsf3, sminsf3):
        Likewise.

2005-01-22  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md: Use "Uy" constraint for wcgr load/stores.

2005-01-21  Mark Dettinger  <dettinge@de.ibm.com>

        * config/s390/s390.c (struct processor_costs): New fields 
        dlgr, dlr, dr, dsgfr, dsgr.
        (z900_cost, z990_cost): Values for new fields.
        (s390_rtx_costs): New cases MEM und COMPARE in switch
        statement. Modified handling of SIGN_EXTEND, ZERO_EXTEND,
        DIV, MOD, UDIV, UMOD.

2005-01-21  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.md ("doloop_si64"): Reload input value directly
        into the register being decremented.
        ("doloop_si31", "doloop_di"): Likewise.
        ("*doloop_si_long"): Adapt pattern.

2005-01-21  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.h (HARD_REGNO_NREGS): Fix computation for
        access registers.
        (CLASS_MAX_NREGS): Likewise.

2005-01-21  Daniel Berlin  <dberlin@dberlin.org>

        * doc/tree-ssa.texi (Statement Operands): Add example for new
        must-def macro. Note deprecation of old operands interface.

2005-01-22  Richard Sandiford  <rsandifo@redhat.com>

        PR tree-optimization/19484
        * tree-cfg.c (remove_fallthru_edge): New function.
        (cleanup_control_flow): Remove fallthru edges from calls that are
        now known not to return.

2005-01-20  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/19038
        * tree-ssa-dom.c (cprop_operand): Don't replace loop invaeriant
        copies with loop variant ones.

2005-01-22  Kazu Hirata  <kazu@cs.umass.edu>

        * cfganal.c, real.h, reorg.c, timevar.def, tree-ssa-ccp.c,
        config/alpha/alpha-protos.h, config/alpha/alpha.h,
        config/alpha/alpha.md, config/alpha/predicates.md,
        config/sparc/freebsd.h, config/sparc/netbsd-elf.h,
        config/sparc/sol2.h: Update copyright.

        * tree-cfg.c (remove_forwarder_block_with_phi): Look at the
        first label to see if it is a nonlocal label.

2005-01-22  David Edelsohn  <edelsohn@gnu.org>
            Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/19491
        * config/rs6000/rs6000.c (rs6000_va_start): Saturate n_gpr at
        maximum number of GPRs.  Saturate n_fpr at maximum number of FPRs.

2005-01-22  Ralf Corsepius  <ralf.corsepius@rtems.org>

        * config/rs6000/rtems.h: Update copyright.

2005-01-22  Ralf Corsepius  <ralf.corsepius@rtems.org>

        PR target/19548
        * config/rs6000/rtems.h: Resurrect cpp_os_rtems_spec from gcc < 3.4.
        (CPP_OS_RTEMS_SPEC): New (From gcc-3.3's config/rs6000/sys4.h).
        (SUBSUBTARGET_EXTRA_SPECS): Use CPP_OS_RTEMS_SPEC.

2005-01-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/18809
        * c-typeck.c (convert_arguments): Check for error_mark_node.

2005-01-21  Ian Lance Taylor  <ian@airs.com>

        PR tree-optimization/13000
        * tree-inline.c: Include "tree-flow.h".
        (expand_call_inline): If warn_return_type, warn if non-void inline
        function falls through.
        * tree-cfg.c (execute_warn_function_return): Don't warn about
        control reaching end if TREE_NO_WARNING is set.  Set
        TREE_NO_WARNING.
        * gimple-low.c (block_may_fallthru): Don't assume that SWITCH_EXPR
        has been lowered.
        * gimplify.c (shortcut_cond_expr): Don't emit a jump over the else
        branch if we don't need one.
        * c-typeck.c: Include "tree-flow.h"
        (c_finish_bc_stmt): Don't add a goto if the current statement
        list doesn't fall through to the current point.

2005-01-21  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/576
        * real.c (real_arithmetic): Change return type from void to bool
        to return an indication that the result may be inexact.
        * real.h (real_arithmeric): Update prototype.
        * fold-const.c (const_binop):  Don't constant fold floating
        point expressions when the user specifies -frounding-math and
        the result may depend upon the run-time rounding mode.
        (fold_convert_const_real_from_real): Clean-up.
        (fold_initializer): Ignore flag_rounding_math for initializers.
        * simplify-rtx.c (simplify_binary_operation): Likewise, don't
        constant fold FP operations with flag_rounding_math if the
        result may depend upon the run-time rounding mode.

2005-01-21  Tom Tromey  <tromey@redhat.com>

        * c-cppbuiltin.c (define__GNUC__): Correct assertion.

2005-01-21  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-cfg.c: Fix comment typos.

2005-01-21  J"orn Rennecke <joern.rennecke@st.com>

        * passes.c (rest_of_handle_flow2): Close / open the flow2 dump file
        around the call to rest_of_handle_branch_target_load_optimize.

2005-01-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config.gcc (sparc-*-netbsdelf*): Include dbxelf.h
        (sparc64-*-openbsd*): Likewise.
        (sparclite-*-elf*): Include tm-dwarf2.h.
        (sparc86x-*-elf*): Likewise.
        (sparc64-*-elf*): Likewise.
        * config/sparc/linux64.h (DWARF2_DEBUGGING_INFO): Delete.
        (DBX_DEBUGGING_INFO): Likewise.
        * config/sparc/liteelf.h (DWARF2_DEBUGGING_INFO): Likewise.
        (PREFERRED_DEBUGGING_TYPE): Likewise.
        * config/sparc/netbsd-elf.h (PREFERRED_DEBUGGING_TYPE): Likewise.
        * config/sparc/sp64-elf.h (DBX_DEBUGGING_INFO): Likewise.
        (PREFERRED_DEBUGGING_TYPE): Likewise.
        * config/sparc/sp86x-elf.h (DWARF2_DEBUGGING_INFO): Likewise.
        (PREFERRED_DEBUGGING_TYPE): Likewise.
        * config/sparc/sparc.h (DBX_DEBUGGING_INFO): Likewise.

2005-01-21  Hans-Peter Nilsson  <hp@bitrange.com>

        PR target/18701
        * combine.c (combine_simplify_rtx): Revert change of 2004-12-31.

2005-01-20  Paul Brook  <paul@codesourcery.com>

        * doc/rtl.texi: Document value extension requirements for CONST_INT.

2005-01-20  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-cfg.c (tree_verify_flow_info): Check that a nonlocal
        label is first in a sequence of labels.

        * tree-cfg.c (tree_verify_flow_info): Fix a typo.

2005-01-20  Janis Johnson  <janis187@us.ibm.com>
            Giovanni Bajo  <giovannibajo@gcc.gnu.org>

        * doc/sourcebuild.texi (Test Directives): New.

2005-01-20  Roger Sayle  <roger@eyesopen.com>

        * real.c (real_floor): Don't leave the result uninitialized when
        mode is VOIDMode, but return the unrounded intermediate value.
        (real_ceil): Likewise.

2005-01-20  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (insv): Use gen_int_mode.

2005-01-20  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/freebsd.h (ASM_OUTPUT_INTERNAL_LABELREF): Delete.
        * config/sparc/linux.h (ASM_OUTPUT_INTERNAL_LABELREF): Likewise.
        * config/sparc/linux64.h (ASM_OUTPUT_INTERNAL_LABELREF): Likewise.
        * config/sparc/netbsd-elf.h (ASM_OUTPUT_INTERNAL_LABELREF): Likewise.
        * config/sparc/sol2.h (ASM_OUTPUT_INTERNAL_LABELREF): Likewise.

2005-01-20  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR debug/19124
        * dwarf2out.c (concat_loc_descriptor): We don't know we can use
        fbreg, so we have to assume we can't.
        (loc_descriptor_from_tree_1): Ditto.
        (containing_function_has_frame_base): New function.
        (add_location_or_const_value_attribute): Use it.
        Also try to generate a frame_base from a single element location
        list.
        
2005-01-20  Kazu Hirata  <kazu@cs.umass.edu>

        PR tree-optimization/15349
        * timevar.def (TV_TREE_MERGE_PHI): New.
        * tree-cfg.c (tree_forwarder_block_p): Add a new argument
        PHI_WANTED.
        (remove_forwarder_block, cleanup_forwarder_blocks): Adjust the
        calls to tree_forwarder_block_p.
        (remove_forwarder_block_with_phi, merge_phi_nodes,
        gate_merge_phi, pass_merge_phi): New.
        * tree-optimize.c (init_tree_optimization_passes): Add
        pass_merge_phi.
        * tree-pass.h: Add an extern for pass_merge_phi;

2005-01-20  Richard Henderson  <rth@redhat.com>

        PR target/19418
        * config/i386/emmintrin.h (_mm_castpd_ps, _mm_castpd_si128): New.
        (_mm_castps_pd, _mm_castps_si128): New.
        (_mm_castsi128_ps, _mm_castsi128_pd): New.

2005-01-20  Richard Henderson  <rth@redhat.com>

        PR target/19530
        * config/i386/mmintrin.h (_mm_cvtsi32_si64): Use
        __builtin_ia32_vec_init_v2si.
        (_mm_cvtsi64_si32): Use __builtin_ia32_vec_ext_v2si.
        * config/i386/i386.c (IX86_BUILTIN_VEC_EXT_V2SI): New.
        (ix86_init_mmx_sse_builtins): Create it.
        (ix86_expand_builtin): Expand it.
        (ix86_expand_vector_set): Handle V2SFmode and V2SImode.
        * config/i386/mmx.md (vec_extractv2sf_0, vec_extractv2sf_1): New.
        (vec_extractv2si_0, vec_extractv2si_1): New.

2005-01-20  Richard Henderson  <rth@redhat.com>

        PR target/16533
        * config/i386/i386.c (ix86_expand_push): New.
        * config/i386/mmx.md (push<MMXMODE>1): New.
        * config/i386/sse.md (push<SSEMODE>1): New.
        * config/i386/i386-protos.h: Update.

2005-01-20  Kazu Hirata  <kazu@cs.umass.edu>

        * params.def, params.h, predict.c, tree-ssa-loop-im.c: Update
        copyright.

2005-01-20  Richard Henderson  <rth@redhat.com>

        * rtl.def (CONST_VECTOR): Use RTX_CONST_OBJ.
        * rtl.h (CONSTANT_P): Don't special case CONST_VECTOR.

2005-01-19  Richard Henderson  <rth@redhat.com>

        PR target/19350
        * config/i386/i386.c (ix86_expand_vector_move_misalign): Convert
        to V4SFmode in SSE1 fallback load path.

2005-01-19  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_expand_vector_init_one_var): Fix typo
        in QImode expansion to ix86_expand_vector_set.
        (ix86_expand_vector_init_general): Fix typo in V8HImode recursive call.

2005-01-19  Richard Henderson  <rth@redhat.com>

        PR target/19511
        * config/i386/i386.c (ix86_preferred_reload_class): Return a proper
        subclass of the input class.
        (ix86_secondary_memory_needed): Always true for cross-MMX classes.
        Always true for cross-SSE1 classes.  Rationalize conditionals.
        * config/i386/i386.h (SSE_CLASS_P, MMX_CLASS_P): Use straight equality.
        * config/i386/i386.md (movsi_1): Add MMX/SSE zeros.  Fix alternatives
        for SSE1.  Don't check TARGET_INTER_UNIT_MOVES.
        (movdi_2): Add MMX/SSE zeros.
        (movdi_1_rex64): Likewise.  Don't check TARGET_INTER_UNIT_MOVES.
        (movsf_1): Don't check TARGET_INTER_UNIT_MOVES.
        (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
        (movsi_1_nointernunit, movdi_1_rex64_nointerunit): Remove.
        (movsf_1_nointerunit, zero_extendsidi2_32_1): Remove.
        (zero_extendsidi2_rex64_1): Remove.
        (MOV0 peephole): Check GENERAL_REG_P.

2005-01-19  Richard Henderson  <rth@redhat.com>

        PR target/19427
        * config/i386/i386.c (ix86_expand_vector_set): Fix third and fourth
        shufps elements.
        (ix86_expand_vector_extract): Likewise.

2005-01-19  Richard Henderson  <rth@redhat.com>

        PR middle-end/19304
        * expr.c (emit_move_change_mode): New argument force; use
        simplify_gen_subreg if true.
        (emit_move_via_alt_mode): Merge into ...
        (emit_move_via_integer): ... here.
        (emit_move_ccmode): Use emit_move_change_mode directly.

2005-01-19  Richard Henderson  <rth@redhat.com>

        PR target/19518
        * config/alpha/alpha.c (alpha_rtx_costs): Handle HIGH.
        (alpha_preferred_reload_class): Handle CONST_VECTOR.
        (alpha_emit_set_const_1): Add no_output parameter; don't emit
        rtl if true.
        (alpha_emit_set_const): Likewise.  Make static.
        (alpha_emit_set_long_const): Make static.
        (alpha_extract_integer): Split out from alpha_expand_mov.
        (alpha_split_const_mov): Likewise.
        (alpha_expand_mov): Use them.  Handle CONST_VECTOR.
        (alpha_legitimate_constant_p): New.
        * config/alpha/alpha-protos.h: Update.
        * config/alpha/alpha.h (REGISTER_MOVE_COST): Correct fp<->gp cost.
        (LEGITIMATE_CONSTANT_P): Re-implement with a function.
        * config/alpha/alpha.md (movsi): Add n alternative.
        (movsi_nt_vms, movdi_er_nofix, movdi_er_fix, movdi_fix): Likewise.
        (mov<VEC>_fix, mov<VEC>_nofix): Add i alternative.
        (splitters for all of the above): Use alpha_split_const_mov.
        * config/alpha/predicates.md (non_add_const_operand): New.
        (non_zero_const_operand): New.
        (input_operand): Use alpha_legitimate_constant_p after reload.

2005-01-19  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/19038
        * tree-ssa-loop-ivopts.c (allow_ip_end_pos_p): New function.
        (add_candidate): Add ivs with increment in latch only if
        allow_ip_end_pos_p is true.
        (determine_iv_cost): Use empty_block_p.

2005-01-19  Daniel Berlin  <dberlin@dberlin.org>

        * cfganal.c (compute_dominance_frontiers_1): Replace with new algorithm
        (compute_dominance_frontiers): Ditto.

2005-01-19  Ralf Corsepius  <ralf.corsepius@rtems.org>

        PR target/19529
        * config/sh/t-rtems: New. 
        * config.gcc (sh-*-rtems*): Reflect having added config/sh/t-rtems.

2005-01-19  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Always subtract
        the offset of the selected field.

2005-01-19  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-cfg.c (remove_forwarder_block): Fix the check to
        prevent a nonlocal label from appearing in the middle of a
        basic block.

2005-01-19  Hans-Peter Nilsson  <hp@axis.com>

        PR rtl-optimization/19462
        * reorg.c (find_end_label): Create return insn only if
        current_function_epilogue_delay_list is empty.

2005-01-19  Paolo Bonzini  <bonzini@gnu.org>

        * doc/passes.texi: Remove paragraph mentioning new-ra.

2005-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/15139
        * combine.c: Include params.h.
        (count_rtxs): New function.
        (record_value_for_reg): If replace_rtx would replace at least
        2 occurrences of REG in VALUE and TEM is really large, replace REG with
        (clobber (const_int 0)) instead of TEM.
        * params.def (PARAM_MAX_LAST_VALUE_RTL): New.
        * params.h (MAX_LAST_VALUE_RTL): New.
        * Makefile.in (combine.o): Depend on $(PARAMS_H).
        * doc/invoke.texi (--param max-last-value-rtl=N): Document.

        PR c/17297
        * c-typeck.c (digest_init): Only call build_vector if all constructor
        elements are *_CST nodes.
        * gimplify.c (gimplify_init_constructor): Likewise.

        PR middle-end/19164
        * c-typeck.c (digest_init): Only call build_vector if inside_init
        is a CONSTRUCTOR.

2005-01-18  Tobias Schl"uter  <tobias.schlueter@physik.uni-muenchen.de>

        * toplev.c (init_asm_output): Remove dead #ifdef.

2005-01-18  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux.h (TARGET_C99_FUNCTIONS): Define.

2005-01-18  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * calls.c (expand_call): Check DECL_BUILT_IN_CLASS before
        accessing DECL_FUNCTION_CODE.
        * dojump.c (do_jump): Likewise.
        * gimplify.c (gimplify_call_expr): Likewise.
        * predict.c (expr_expected_value): Likewise.
        (strip_builtin_expect): Likewise.
        * tree-inline.c (estimate_num_insns_1): Likewise.
        * tree-ssa-loop-im.c (stmt_cost): Likewise
        * fold-const.c (fold): Test for BUILT_IN_NORMAL.
        (tree_expr_nonnegative_p): Likewise.

2005-01-18  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (load_pic_register): Emit the appropriate
        variant of the load_pcrel_sym pattern.
        * config/sparc/sparc.md (P macro): Move to the top.
        (load_pcrel_sym): Macroize using P.
        (save_register_window): Likewise.

2005-01-18  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.md ("sunordered"): Disable for e500.
        ("sordered"): Same.

2005-01-18  Andrew Pinski  <pinskia@physics.uc.edu>

        PR C/19472
        * c-typeck.c (build_asm_expr): Strip nops off
        input memory operands.

2005-01-18  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix43.h (CPLUSPLUS_CPP_SPEC): Delete
        _XOPEN_SOURCE, _XOPEN_SOURCE_EXTENDED, _LARGE_FILE_API.
        * config/rs6000/aix51.h (CPLUSPLUS_CPP_SPEC): Same.
        * config/rs6000/aix52.h (CPLUSPLUS_CPP_SPEC): Same.

2005-01-18  Joel Sherrill <joel.sherrill@oarcorp.com>

        PR target/19379
        * config/i386/i386.c (override_options): If the 80387 is disabled,
        then do not return FP values using FP registers.

2005-01-18  Kazu Hirata  <kazu@cs.umass.edu>

        * basic-block.h, c-common.c, c-cppbuiltin.c, c-lang.c,
        c-tree.h, cfgbuild.c, cgraph.c, cgraph.h, collect2.c,
        combine.c, config.gcc, coverage.h, cse.c, cselib.c,
        defaults.h, df.c, dwarf2asm.c, dwarf2out.c, explow.c, expr.c,
        flow.c, fold-const.c, gcse.c, ggc-page.c, gimple-low.c,
        gimplify.c, ifcvt.c, langhooks-def.h, lcm.c, optabs.h,
        output.h, postreload-gcse.c, postreload.c, recog.c,
        resource.c, rtl.def, rtlanal.c, sched-deps.c, sched-rgn.c,
        targhooks.h, toplev.c, tree-data-ref.c, tree-eh.c,
        tree-flow.h, tree-loop-linear.c, tree-mudflap.h, tree-nrv.c,
        tree-optimize.c, tree-outof-ssa.c, tree-pass.h,
        tree-scalar-evolution.c, tree-ssa-copy.c, tree-ssa-dce.c,
        tree-ssa-dse.c, tree-ssa-loop-ivopts.c, tree-ssa-operands.c,
        tree-ssa-pre.c, tree-ssa.c, tree-vectorizer.c, tree.def,
        unwind-dw2-fde-darwin.c, var-tracking.c: Update copyright.

        * config/darwin.c, config/darwin.h, config/freebsd-spec.h,
        config/alpha/alpha.c, config/arm/vfp.md,
        config/i386/emmintrin.h, config/i386/i386-modes.def,
        config/i386/i386-protos.h, config/i386/i386.h,
        config/i386/pmmintrin.h, config/i386/ppro.md,
        config/i386/predicates.md, config/i386/xmmintrin.h,
        config/i860/i860.c, config/ia64/ia64-modes.def,
        config/ia64/ia64-protos.h, config/ia64/ia64.h,
        config/ia64/ia64.md, config/ia64/itanium1.md,
        config/ia64/itanium2.md, config/ia64/predicates.md,
        config/iq2000/iq2000.h, config/mips/linux64.h,
        config/rs6000/aix41.h, config/rs6000/aix43.h,
        config/rs6000/aix52.h, config/rs6000/darwin-fallback.c,
        config/rs6000/rs6000.c, config/rs6000/rs6000.h,
        config/rs6000/spe.md, config/sh/sh.md, config/sparc/linux.h,
        config/sparc/linux64.h, config/sparc/litecoff.h,
        config/sparc/sp64-elf.h, config/sparc/sparc.c,
        config/sparc/sparc.h, config/sparc/sparc.md,
        config/sparc/sysv4-only.h: Update copyright.

2005-01-18  Richard Henderson  <rth@redhat.com>

        PR target/19496
        * config/i386/i386.c (ix86_expand_fp_movcc): Fail for LTGT and UNEQ.

2005-01-18  Marc Espie  <espie@openbsd.org>
        * config/i386/openbsdelf.h: Typo.

2005-01-18  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_expand_fp_movcc): Remove TARGET_IEEE_FP
        special case for sse.
        * config/i386/predicates.md (sse_comparison_operator): Likewise.

2005-01-18  Dorit Naishlos  <dorit@il.ibm.com>

        * tree-inline.c (estimate_num_insns_1): Added cases for
        ALIGN_INDIRECT_REF, MISALIGNED_INDIRECT_REF, and REALIGN_LOAD_EXPR.

2005-01-18  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/19296
        * combine.c (simplify_comparison): Rewrite the condition under
        which a non-paradoxical SUBREG of a PLUS can be lifted when
        compared against a constant.

2005-01-18  Andi Kleen <ak@muc.de>

        * c-typeck.c: (convert_for_assignment): Check warn_pointer_sign.
        * c.opt (-Wpointer-sign): Add.
        * doc/invoke.texi: (-Wpointer-sign): Add.

2005-01-18  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.c (override_options): Revert 2004-11-24 change.
        * config/i386/i386.md (fmodsf3, dremsf3, *sinsf2, *cossf2, sincossf3,
        *tansf3_1, tansf2, atan2sf3_1, atan2sf3, atansf2, asinsf2, acossf2,
        logsf2, log10sf2, log2sf2, log1psf2, logbsf2, ilogbsf2, expsf2,
        exp10sf2, exp2sf2, expm1sf2, rintsf2, floorsf2, ceilsf2, btruncsf2,
        nearbyintsf2): Disable for TARGET_SSE_MATH.  Leave patterns enabled
        for TARGET_MIX_SSE_I387.
        (fmoddf3, dremdf3, *sindf2, *sinextendsfdf2, *cosdf2, *cosextendsfdf2,
        sincosdf3, *sincosextendsfdf3, *tandf3_1, tandf2, atan2df3_1,
        atan2df3, atandf2, asindf2, acosdf2, logdf2, log10df2, log2df2,
        log1pdf2, logbdf2, expdf2, exp10df2, exp2df2, expm1df2, rintdf2,
        floordf2, ceildf2, btruncdf2, nearbyintdf2): Disable for
        (TARGET_SSE2 && TARGET_SSE_MATH).  Leave patterns enabled for
        TARGET_MIX_SSE_I387.
        (atan2sf3, atan2df3, atan2xf3): Remove register constraints
        from expander.

2005-01-18  Uros Bizjak  <uros@kss-loka.si>

        PR target/19424
        * config/i386/mmx.md (*movv2sf_internal_rex64, *movv2sf_internal):
        Add movaps alternative for xmm reg->reg move.

2005-01-17  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Clear SSA_NAME_VALUE
        at the end of the main DOM loop rather than just before DOM exits.

2005-01-17  Diego Novillo  <dnovillo@redhat.com>

        PR tree-optimization/19121
        * tree-ssa-alias.c (compute_flow_sensitive_aliasing): When
        adding aliases to a name tag, also add them to the pointer's
        type tag.
        * tree-ssa-copy.c (merge_alias_info): Do not merge flow
        sensitive alias info at all.  Only check that the two pointers
        have compatible pointed-to sets.
        * tree-ssa.c (verify_name_tags): Verify that the alias set of
        a pointer's type tag is a superset of the alias set of the
        pointer's name tag.

2005-01-17  James E Wilson  <wilson@specifixinc.com>

        PR target/19357
        * config/ia64/ia64.md (movxf): Handle general register source.  Adjust
        comment to document why.

2005-01-17  Richard Henderson  <rth@redhat.com>

        * config/i386/sse.md (smaxv4sf3_finite, sse_vmsmaxv4sf3_finite,
        sminv4sf3_finite, sse_vmsminv4sf3_finite, smaxv2df3_finite,
        sse2_vmsmaxv2df3_finite, sminv2df3_finite,
        sse2_vmsminv2df3_finite): New.
        (smaxv4sf3, sse_vmsmaxv4sf3, sminv4sf3, sse_vmsminv4sf3, smaxv2df3,
        sse2_vmsmaxv2df3, sminv2df3, sse2_vmsminv2df3): Remove commutative.
        Force op1 into register.

2005-01-17  Kelley Cook  <kcook@gcc.gnu.org>

        * Makefile.in (STAGEMOVESTUFF): Stage all the stamp files to prevent
        bubblestrap from always rebuilding build directory.

2005-01-17  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.md ("*clc"): Remove incorrect '='.
        ("*cmpmem_short"): Likewise.

2005-01-17  Steven Bosscher  <stevenb@suse.de>

        * basic-block.h: Document BB_* flags.
        * regrename.c (copyprop_hardreg_forward): Don't use BB_VISITED,
        use an sbitmap instead.
        * sched-rgn.c (compute_trg_info): Likewise.

2005-01-17  Richard Sandiford  <rsandifo@redhat.com>

        * config.gcc (mips64*-*-linux*): Set the default abi to n32.  Remove
        redundant target_cpu_default and extra_parts lines.  Use the default
        "from-abi" ISA.
        * config/mips/linux64.h (DRIVER_DEFAULT_ABI_SELF_SPEC): Delete.
        (SUBTARGET_EXTRA_SPECS): Delete.
        (DRIVER_SELF_SPECS): Remove architecture lines.  Set the ABI directly.
        (SUBTARGET_ASM_SPEC): Remove -mabi=n32 and -mabi=64 mappings.
        * config/mips/t-linux64 (MULTILIB_DIRNAMES): Use "32" for -mabi=32
        and "n32" for -mabi=n32.

2005-01-17  Ian Lance Taylor  <ian@airs.com>

        PR c/5675
        * c-typeck.c (build_c_cast): Revert patch of 2003-02-16: don't
        fold constant variables into initial values.

2005-01-17  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-cfg.c (tree_can_merge_blocks_p): Reorder two checks.

        * tree-cfg.c (tree_forwarder_block_p): Speed up by walking
        through the statements backward.

2005-01-17  Ian Lance Taylor  <ian@airs.com>

        PR middle-end/13127:
        * tree-inline.c (expand_call_inline): Set TREE_NO_WARNING on
        a variable set to the return value of the inlined function.

2005-01-17  Mark Dettinger  <dettinge@de.ibm.com>

        * rtlanal.c (rtx_cost): Assign cost of 0 to a SUBREG
        when modes are tieable.

2005-01-17  Ranjit Mathew  <rmathew@hotmail.com>

        * gthr-posix.h (__gthread_active_p): Use pthread_cancel instead
        of pthread_create to find out if threads are enabled.
        * gthr-posix95.h (__gthread_active_p): Likewise.

2005-01-17  Paolo Bonzini  <bonzini@gnu.org>

        * common.opt (-fnew-ra): Remove.
        * ra*.*: Remove.
        * toplev.h (flag_new_regalloc): Remove.
        * Makefile.in (ra*.*): Don't mention.
        * passes.c (rest_of_handle_new_regalloc): Remove.
        (rest_of_handle_combine, rest_of_compilation): Always consider
        flag_new_regalloc as false.
        * doc/invoke.texi: Don't document -fnew-ra.

2005-01-17  Paolo Bonzini <bonzini@gnu.org>

        * bb-reorder.c (fix_edges_for_rarely_executed_code): Remove
        last parameter to reg_scan.
        * loop.c (loop_optimize): Likewise.
        * passes.c (rest_of_handle_tracer, rest_of_handle_if_conversion,
        rest_of_handle_web, rest_of_handle_cfg, rest_of_handle_jump_bypass,
        rest_of_handle_life, rest_of_handle_cse, rest_of_handle_cse2,
        rest_of_handle_gcse, rest_of_handle_loop_optimize,
        rest_of_handle_loop2, rest_of_handle_jump2): Likewise.
        * regclass.c (reg_scan): Likewise, for the declaration.
        * rtl.h (reg_scan): Likewise, for the prototype.

2005-01-17  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Don't call
        mark_dfs_back_edges.

2005-01-16  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-pre.c (add_to_sets): s1 may be NULL.
        (compute_avail): Uses don't go in tmp_gen.

2005-01-16  Steven Bosscher  <stevenb@suse.de>

        * ggc-page.c (ggc_alloc_stat): Use __builtin_ctzl instead of a
        loop to look for a free slot in a page entry.

2005-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/16304
        * defaults.h (TARGET_DEFERRED_OUTPUT_DEFS): Provide default.
        * toplev.c (compile_file): Call process_pending_assemble_output_defs
        just before targetm.asm_out.file_end.
        * tree.h (process_pending_assemble_output_defs): Declare.
        * varasm.c (assemble_output_def, process_pending_assemble_output_defs):
        New functions.
        (assemble_alias): Defer generation of assembly code for defines when
        TARGET_DEFERRED_OUTPUT_DEFS is true.
        * config/rs6000/aix41.h (TARGET_DEFERRED_OUTPUT_DEFS): Define.
        * config/rs6000/aix43.h (TARGET_DEFERRED_OUTPUT_DEFS): Define.
        * doc/tm.texi (TARGET_DEFERRED_OUTPUT_DEFS): document.

2005-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/19336
        * pa.c (pa_scalar_mode_supported_p): New function.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
        * pa.h (MIN_UNITS_PER_WORD): Add comment.

        * pa-protos.h (prefetch_operand): Delete.
        (prefetch_cc_operand, prefetch_nocc_operand): New declations.
        * pa.c (prefetch_operand): Delete.
        (prefetch_cc_operand, prefetch_nocc_operand): New functions.
        * pa.h (EXTRA_CONSTRAINT): Add `W' constraint.
        (PREDICATE_CODES): Delete prefetch_operand.  Add prefetch_cc_operand
        and prefetch_nocc_operand.
        * pa.md (prefetch): Rework to avoid reload problems handling short
        displacements when a cache control completer needs to be provided.
        (prefetch_32, prefetch_64): Delete.
        (prefetch_cc, prefetch_nocc): New patterns.

2005-01-15  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix52.h (CPLUSPLUS_CPP_SPEC): Revert previous change.

2005-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR ada/19388
        * pa.c (pa_asm_output_aligned_common): Warn if specified alignment
        exceeds maximum alignment for global common data.
        * pa64-hpux.h (MAX_OFILE_ALIGNMENT): Define to 32768.
        * som.h (MAX_OFILE_ALIGNMENT): Likewise.

2004-01-15  Roger Sayle  <roger@eyesopen.com>

        * tree-ssa-dom.c (extract_range_from_cond): Correct condition.

2004-01-15  Roger Sayle  <roger@eyesopen.com>

        * harg-reg-set.h (reg_class_names): Prototype global array.
        * regclass.c (reg_class_names): Declare here and initialize to
        REG_CLASS_NAMES.
        (dump_regclass): Remove local declaration of reg_class_names.
        (regclass): Likewise.
        * cfg.c (dump_flow_info): Likewise.
        * ra-debug.c (reg_class_names): Likewise.
        * regrename.c (reg_class_names): Likewise.
        * reload.c (reg_class_names): Likewise.
        * reload1.c (spill_failure): Likewise.
        * config/m68hc11/m68hc11.c (reg_class_names): Likewise.

2005-01-15  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.md ("reload_outti"): Remove predicate for
        output operand.  Abort if operand is not a MEM.
        ("reload_outdi", "reload_outdf"): Likewise.

2005-01-15  Marc Espie  <espie@openbsd.org>

        * config.gcc (*-*-openbsd*): Set HAS_LIBC_R for OpenBSD <= 3.2.
        (i[34567]86-*-openbsd*): Switch to ELF for OpenBSD >= 3.4.
        * config/openbsd.h:  Fix C++ includes for native configurations.
        Add proper OS_CPP_BUILTINS.  Fix libspec for recent OpenBSD.
        Add trampoline support.
        * config/i386/openbsdelf.h: New.

2005-01-15  Marc Espie  <espie@openbsd.org>

        * collect2.c (main): Explicitly parse -dynamic-linker option.

2005-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/19060
        * tree-ssa-dom.c (extract_range_from_cond) <case LT_EXPR, GT_EXPR>:
        Return 0 if op1 <= TYPE_MIN_VALUE () resp. op1 >= TYPE_MAX_VALUE ().
        (simplify_cond_and_lookup_avail_expr): Add assert for dummy == 0
        and handle extract_range_from_cond returning false.
        * fold-const.c (fold): Optimize comparisons with min/max even for
        width > HOST_BITS_PER_WIDE_INT.

2005-01-15  Ralf Corsepius  <ralf.corsepius@rtems.org>

        * config/mips/rtems.h (MIPS_DEFAULT_GVALUE): Set to 0.
        * config/mips/t-rtems (MULTILIBS_DIRNAMES,MULTILIB_OPTIONS): 
        Remove little endian multilib variants.
        Add mips32 multilib variant.

2005-01-15  Kazu Hirata  <kazu@cs.umass.edu>

        * explow.c (copy_all_reg, stabilize): Remove.
        * expr.h: Remove the corresponding prototypes.

        * rtlanal.c (regs_set_between_p): Remove.
        * rtl.h: Remove the corresponding prototype.

2005-01-14  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6k_nonimmediate_operand): Rename
        to rs6000_nonimmediate_operand.
        * config/rs6000/rs6000.h (PREDICATE_CODES): Rename
        rs6k_nonimmediate_operand to rs6000_nonimmediate_operand.
        * config/rs6000/rs6000.md (movsi_internal1): Rename predicate to
        rs6000_nonimmediate_operand.
        * config/rs6000/spe.md (movdf_e500_double): Rename predicate to
        rs6000_nonimmediate_operand.

2005-01-14  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-ssa-alias.c (pass_may_alias): Add TODO_verify_stmts.

2005-01-14  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.h (CLASS_MAX_NREGS): DF goes in 1 register
        on e500v2.
        (CANNOT_CHANGE_MODE_CLASS): Restrict DI mode changes on e500v2.
        (PREDICATE_CODES): Add rs6k_nonimmediate_operand.

        * config/rs6000/rs6000.c (invalid_e500_subreg): New.
        (rs6k_nonimmediate_operand): New.
        (rs6000_legitimate_offset_address_p): Handle DI modes on e500v2
        correctly.
        (legitimate_lo_sum_address_p): Same.
        (rs6000_legitimize_address): Same.
        (rs6000_legitimize_reload_address): Same.
        (rs6000_legitimate_address): Same.
        (spe_build_register_parallel): Pass DF and DC modes in a DI
        register.

        * config/rs6000/rs6000.md ("*movsi_internal1"): Change predicate
        to rs6k_nonimmediate_operand.

        * config/rs6000/spe.md ("*frob_df_di"): New.
        ("*frob_di_df"): New.
        ("*frob_di_df_2"): New.
        ("*mov_sidf_e500_subreg0"): New.
        ("*mov_sidf_e500_subreg4"): New.
        ("*movdf_e500_double"): Change predicate to
        rs6k_nonimmediate_operand.

2005-01-14  Aldy Hernandez  <aldyh@redhat.com>

        * postreload.c (move2add_note_store): Only call
        trunc_int_for_mode on scalar integers.

2005-01-14  Steven Bosscher  <stevenb@suse.de>

        * tree-ssa-dce.c (visited_control_parents): New sbitmap to
        replace BB_VISITED uses.
        (find_obviously_necessary_stmts): Don't clear BB_VISITED.
        (propagate_necessity): Check the bitmap instead of BB_VISITED.
        (tree_dce_done): Free visited_control_parents.
        (perform_tree_ssa_dce): Allocate and clear it.
        * tree-ssa-pre.c (compute_antic_aux): Make non-recursive.
        (compute_antic): Iterate from here using a DFS.  Use an sbitmap
        instead of BB_VISITED.

2005-01-14  Kazu Hirata  <kazu@cs.umass.edu>

        * c-tree.h, coverage.h, langhooks-def.h, optabs.h, output.h,
        rtl.h, targhooks.h, tree-flow.h, tree-mudflap.h, tree.h:
        Remove unused prototypes.

2005-01-14  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.c (rs6000_stack_info): Fix caching of SPE
        64-bit register usage.
        (spe_func_has_64bit_regs_p): Add FIXME note.

2005-01-14  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.c (rs6000_generate_compare): Replace
        flag_finite_math_only with flag_unsafe_math_optimizations.

2005-01-14  J. D. Johnston  <jjohnst@us.ibm.com>

        * config/s390/tpf-unwind.h (s390_fallback_frame_state): Correct
        end-of-stack check.
        (__tpf_eh_return): Copy TPF private stack area from the module
        boundary stack frame.  Add check for when module addresses are
        equal, but no stub address is found.

2005-01-14  Richard Earnshaw  <rearnsha@arm.com>

        PR target/7525
        * arm.h (struct machine_function): Add call_via field.
        (thumb_call_via_label): Declare.
        * arm.c (thumb_call_via_label): New variable.
        (thumb_call_reg_needed): New variable.
        (arm_output_function_epilogue): For Thumb code, output any per-function
        call-indirect trampolines.
        (thumb_call_via_reg): New function.
        (arm_file_end): New function.
        (TARGET_ASM_FILE_END): Call arm_file_end.
        (aof_file_end): Likewise.
        * arm-protos.h (thumb_call_via_reg): Declare.
        * arm.md (call_reg_thumb, call_value_reg_thumb): Call 
        thumb_call_via_reg in normal case.

2005-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/19084
        PR rtl-optimization/19348
        * recog.c (peephole2_optimize): Do global life update if some peephole
        decides it doesn't need at least one of its inputs and that change
        influences liveness at the start of the basic block.

        * basic-block.h (EXECUTE_IF_AND_COMPL_IN_REG_SET): Needs 2 REGSET
        arguments instead of 1.

2005-01-14  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR middle-end/18820
        * varasm.c (initializer_constant_valid_p) <ADDR_EXPR>: Return
        zero for nested functions needing a static chain or functions
        with a non-constant address.

2005-01-13  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_binary_operation) <AND>: Optimize
        (and (sign_extend X) C) into (zero_extend (and X C)).

2005-01-13  David O'Brien  <obrien@FreeBSD.org>

        * config/freebsd-spec.h:  Make KSE pthread lib logic the default.

2005-01-13  Richard Henderson  <rth@redhat.com>

        PR target/19009
        PR target/19250
        PR target/19252
        * config/i386/i386.md (cmpdf, cmpsf, bunordered, bordered, buneq,
        bunge, bungt, bunle, bunlt, bltgt): Enable for TARGET_SSE_MATH,
        not just TARGET_SSE.
        (cmpfp_i_387): Rename from cmpfp_i.  Move after sse patterns.
        (cmpfp_i_mixed): Rename from cmpfp_i_sse; use for TARGET_MIX_SSE_I387.
        (cmpfp_i_sse): Rename from cmpfp_i_sse_only; use for TARGET_SSE_MATH.
        (cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387): Similarly.
        (fp_jcc_1_mixed, fp_jcc_1_sse, fp_jcc_1_387): Similarly.
        (fp_jcc_2_mixed, fp_jcc_2_sse, fp_jcc_2_387): Similarly.
        (fp_jcc_3_387, fp_jcc_4_387, fp_jcc_5_387, fp_jcc_6_387,
        fp_jcc_7_387, fp_jcc_8_387): Rename from fp_jcc_N.
        (movdicc_c_rex64): Rename with '*'.
        (movsfcc, movdfcc): Add checks for 387 and sse math to condition.
        (movsfcc_1_sse_min, movsfcc_1_sse_max, movsfcc_1_sse): New.
        (movsfcc_1_387): Rename from movsfcc_1.
        (movdfcc_1_sse_min, movdfcc_1_sse_max, movdfcc_1_sse): New.
        (movdfcc_1, movdfcc_1_rex64): Add check for 387.
        (sminsf3, smaxsf3, smindf3, smaxdf3): New.
        (minsf3, minsf, minsf_nonieee, minsf_sse, mindf3, mindf,
        mindf_nonieee, mindf_sse, maxsf3, maxsf, maxsf_nonieee, maxsf_sse,
        maxdf3, maxdf, maxdf_nonieee, maxdf_sse, sse_movsfcc, sse_movsfcc_eq,
        sse_movdfcc, sse_movdfcc_eq, sse_movsfcc_const0_1,
        sse_movsfcc_const0_2, sse_movsfcc_const0_3, sse_movsfcc_const0_4,
        sse_movdfcc_const0_1, sse_movdfcc_const0_2, sse_movdfcc_const0_3,
        sse_movdfcc_const0_4): Remove.
        * config/i386/i386.c (ix86_expand_fp_movcc): For TARGET_SSE_MATH,
        recognize min/max early.  Update for changed sse cmove patterns.
        (ix86_split_sse_movcc): New.
        * config/i386/i386-protos.h: Update.

2005-01-13  Steven Bosscher  <stevenb@suse.de>

        * tree-ssa-dse.c (fix_phi_uses): Use SSA operand iterators.
        (fix_stmt_v_may_defs): Likewise.

2005-01-13  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_expand_fp_absneg_operator): Use elt_mode
        for converting the mask.

2005-01-13  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix52.h (CPLUSPLUS_CPP_SPEC): Change _XOPEN_SOURCE
        definition to 600.

2005-01-13  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (IX86_BUILTIN_MOVQ, IX86_BUILTIN_LOADD,
        IX86_BUILTIN_STORED, IX86_BUILTIN_MOVQ2DQ,
        IX86_BUILTIN_MOVDQ2Q): Remove.
        (IX86_BUILTIN_VEC_EXT_V4SI): New.
        (ix86_init_mmx_sse_builtins, ix86_expand_builtin): Update to match.
        (ix86_expand_vector_extract): For V4S[FI], extract element 0 after 
        shuffling.
        * config/i386/sse.md (sse_concatv2sf): Accept zero operand 2.
        (sse2_pextrw): Fix immediate constraint.
        (sse2_loadq, sse2_loadq_rex64): Remove.
        * config/i386/emmintrin.h (_mm_cvtsi128_si32, _mm_cvtsi128_si64x):
        Use __builtin_ia32_vec_ext_<size>.
        (_mm_cvtsi32_si128, _mm_cvtsi64x_si128): Use _mm_set_epi<size>.

2005-01-13  Aldy Hernandez  <aldyh@redhat.com>

        * function.c (assign_parm_setup_block): Look inside original
        entry_parm when inspecting PARALLEL.

2005-01-13  Ralf Corsepius  <ralf.corsepius@rtems.org>
            Joel Sherrill  <joel@oarcorp.com>

        PR target/19399
        * gthr-rtems.h (__gthread_recursive_mutex_t): New type.
        (__GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION): Define to
        rtems_gxx_recursive_mutex_init.
        (__gthread_recursive_mutex_lock): New function.
        (__gthread_recursive_mutex_trylock): Likewise.
        (__gthread_recursive_mutex_unlock): Likewise.

2005-01-13  Ralf Corsepius <ralf.corsepius@rtems.org>

        * config/i386/t-rtems-i386: Multilib on -mtune instead of -mcpu.

2005-01-13  Jan Beulich  <jbeulich@novell.com>

        * config/ia64/ia64.md (ashlti3, ashlti3_internal): New.
        (ashrti3_internal): Indicate output is early clobber. Generate result
        into output rather than first input. Use move for low word of output
        if shift count is exactly 64.
        (lshrti3_internal): Likewise.

2005-01-13  Hans-Peter Nilsson  <hp@bitrange.com>

        PR target/18329
        PR target/18330
        * reload1.c (delete_output_reload): Don't delete an output reload
        if the pseudo lives longer than a single basic block.  Adjust and
        improve wording of comment.

2005-01-12  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/19334
        * config/darwin.c (machopic_select_section): Use TYPE_SIZE_UNIT instead
        of TYPE_SIZE where we mean the number of bytes.

2005-01-12  Aldy Hernandez  <aldyh@redhat.com>

        * function.c (assign_parm_setup_block): Relax condition on
        multi-register optimization.

2005-01-12  Nick Clifton  <nickc@redhat.com>

        * config/sh/sh.md (udivsi3_sh2a, divsi3_sh2a): Give these patterns
        an "in_delay_slot" attribute of "no" to prevent them being used in
        delay slots.  This is forbidden because they might generate
        exceptions.

2005-01-12  Alan Modra  <amodra@bigpond.net.au>

        PR target/19389
        * config/rs6000/rs6000.md (movtf_internal): Replace r->o and m->r
        with r->Y and Y->r.

2005-01-12  Nick Clifton  <nickc@redhat.com>

        * config/iq2000/iq2000.h (ASM_SPEC): Undefine (to stop -Qy being
        passed on to GAS) but do not define, as GAS no longer supports or
        needs the -m2000 option.

2005-01-11  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_fabs): Convert argument to the appropriate
        type as args of unprototyped builtins aren't automatically promoted.
        (fold_builtin_abs): Likewise.

2005-01-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in: Set a `build-warn' variable.

2005-01-11  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/17949
        * tree-ssa-loop-ivopts.c (may_be_unaligned_p): New function.
        (find_interesting_uses_address): Use it.

2005-01-11  Aldy Hernandez  <aldyh@redhat.com>

        * regrename.c (kill_value): Handle subreg's that won't simplify.

2005-01-11  Richard Henderson  <rth@redhat.com>

        PR target/13366
        * config/i386/i386.h (enum ix86_builtins): Move ...
        * config/i386/i386.c: ... here.
        (IX86_BUILTIN_MOVDDUP, IX86_BUILTIN_MMX_ZERO, IX86_BUILTIN_PEXTRW,
        IX86_BUILTIN_PINSRW, IX86_BUILTIN_LOADAPS, IX86_BUILTIN_LOADSS,
        IX86_BUILTIN_STORESS, IX86_BUILTIN_SSE_ZERO, IX86_BUILTIN_PEXTRW128,
        IX86_BUILTIN_PINSRW128, IX86_BUILTIN_LOADAPD, IX86_BUILTIN_LOADSD,
        IX86_BUILTIN_STOREAPD, IX86_BUILTIN_STORESD,  IX86_BUILTIN_STOREHPD,
        IX86_BUILTIN_STORELPD, IX86_BUILTIN_SETPD1, IX86_BUILTIN_SETPD,
        IX86_BUILTIN_CLRPD, IX86_BUILTIN_LOADPD1, IX86_BUILTIN_LOADRPD,
        IX86_BUILTIN_STOREPD1, IX86_BUILTIN_STORERPD, IX86_BUILTIN_LOADDQA,
        IX86_BUILTIN_STOREDQA, IX86_BUILTIN_CLRTI,
        IX86_BUILTIN_LOADDDUP): Remove.
        (IX86_BUILTIN_VEC_INIT_V2SI, IX86_BUILTIN_VEC_INIT_V4HI,
        IX86_BUILTIN_VEC_INIT_V8QI, IX86_BUILTIN_VEC_EXT_V2DF,
        IX86_BUILTIN_VEC_EXT_V2DI, IX86_BUILTIN_VEC_EXT_V4SF,
        IX86_BUILTIN_VEC_EXT_V8HI, IX86_BUILTIN_VEC_EXT_V4HI,
        IX86_BUILTIN_VEC_SET_V8HI, IX86_BUILTIN_VEC_SET_V4HI): New.
        (ix86_init_builtins): Make static.
        (ix86_init_mmx_sse_builtins): Update for changed builtins.
        (ix86_expand_binop_builtin): Only use ix86_fixup_binary_operands
        if all the modes match.  Otherwise, fake it.
        (get_element_number, ix86_expand_vec_init_builtin,
        ix86_expand_vec_ext_builtin, ix86_expand_vec_set_builtin): New.
        (ix86_expand_builtin): Make static.  Update for changed builtins.
        (ix86_expand_vector_move_misalign): Use sse2_loadlpd with zero
        operand instead of sse2_loadsd.  Cast sse1 fallback to V4SFmode.
        (ix86_expand_vector_init_duplicate): New.
        (ix86_expand_vector_init_low_nonzero): New.
        (ix86_expand_vector_init_one_var, ix86_expand_vector_init_general):
        Split out from ix86_expand_vector_init; handle integer modes.
        (ix86_expand_vector_init): Use them.
        (ix86_expand_vector_set, ix86_expand_vector_extract): New.
        * config/i386/i386-protos.h: Update.
        * config/i386/predicates.md (reg_or_0_operand): New.
        * config/i386/mmx.md (mov<MMXMODEI>_internal): Add 'r' variants.
        (movv2sf_internal): Likewise.  And a splitter to match them all.
        (vec_dupv2sf, mmx_concatv2sf, vec_setv2sf, vec_extractv2sf,
        vec_initv2sf, vec_dupv4hi, vec_dupv2si, mmx_concatv2si, vec_setv2si,
        vec_extractv2si, vec_initv2si, vec_setv4hi, vec_extractv4hi,
        vec_initv4hi, vec_setv8qi, vec_extractv8qi, vec_initv8qi): New.
        (mmx_pinsrw): Fix operand ordering.
        * config/i386/sse.md (movv4sf splitter): Use direct pattern,
        rather than sse_loadss expander.
        (movv2df splitter): Similarly.
        (sse_loadss, sse_loadlss): Remove.
        (vec_dupv4sf, sse_concatv2sf, sse_concatv4sf, vec_extractv4sf_0): New.
        (vec_setv4sf, vec_setv2df): Use ix86_expand_vector_set.
        (vec_extractv4sf, vec_extractv2df): Use ix86_expand_vector_extract.
        (sse3_movddup): Rename with '*'.
        (sse3_movddup splitter): Use gen_rtx_REG instead of gen_lowpart.
        (sse2_loadsd): Remove.
        (vec_dupv2df_sse3): Rename from sse3_loadddup.
        (vec_dupv2df, vec_concatv2df_sse3, vec_concatv2df): New.
        (sse2_pinsrw): Fix argument ordering.
        (sse2_loadld, sse2_loadq): Add sse1 alternatives.
        (sse2_stored): Remove 'r' destination.
        (vec_dupv4si, vec_dupv2di, sse2_concatv2si, sse1_concatv2si,
        vec_concatv4si_1, vec_concatv2di, vec_setv2di, vec_extractv2di,
        vec_initv2di, vec_setv4si, vec_extractv4si, vec_initv4si,
        vec_setv8hi, vec_extractv8hi, vec_initv8hi, vec_setv16qi,
        vec_extractv16qi, vec_initv16qi): New.

        * config/i386/emmintrin.h (__m128i, __m128d): Use typedef, not define.
        (_mm_set_sd, _mm_set1_pd, _mm_setzero_pd, _mm_set_epi64x, 
        _mm_set_epi32, _mm_set_epi16, _mm_set_epi8, _mm_setzero_si128): Use
        constructor form.
        (_mm_load_pd, _mm_store_pd): Use plain dereference.
        (_mm_load_si128, _mm_store_si128): Likewise.
        (_mm_load1_pd): Use _mm_set1_pd.
        (_mm_load_sd): Use _mm_set_sd.
        (_mm_store_sd, _mm_storeh_pd): Use __builtin_ia32_vec_ext_v2df.
        (_mm_store1_pd, _mm_storer_pd): Use _mm_store_pd.
        (_mm_set_epi64): Use _mm_set_epi64x.
        (_mm_set1_epi64x, _mm_set1_epi64, _mm_set1_epi32, _mm_set_epi16,
        _mm_set1_epi8, _mm_setr_epi64, _mm_setr_epi32, _mm_setr_epi16,
        _mm_setr_epi8): Use _mm_set_foo form.
        (_mm_loadl_epi64, _mm_movpi64_epi64, _mm_move_epi64): Use _mm_set_epi64.
        (_mm_storel_epi64, _mm_movepi64_pi64): Use __builtin_ia32_vec_ext_v2di.
        (_mm_extract_epi16): Use __builtin_ia32_vec_ext_v8hi.
        (_mm_insert_epi16): Use __builtin_ia32_vec_set_v8hi.
        * config/i386/mmintrin.h (_mm_setzero_si64): Use plain cast.
        (_mm_set_pi32): Use __builtin_ia32_vec_init_v2si.
        (_mm_set_pi16): Use __builtin_ia32_vec_init_v4hi.
        (_mm_set_pi8): Use __builtin_ia32_vec_init_v8qi.
        (_mm_set1_pi16, _mm_set1_pi8): Use _mm_set_piN variant.
        * config/i386/pmmintrin.h (_mm_loaddup_pd): Use _mm_load1_pd.
        (_mm_movedup_pd): Use _mm_shuffle_pd.
        * config/i386/xmmintrin.h (_mm_setzero_ps, _mm_set_ss,
        _mm_set1_ps, _mm_set_ps, _mm_setr_ps): Use constructor form.
        (_mm_cvtpi16_ps, _mm_cvtpu16_ps, _mm_cvtpi8_ps, _mm_cvtpu8_ps,
        _mm_cvtps_pi8, _mm_cvtpi32x2_ps): Avoid __builtin_ia32_mmx_zero;
        Use _mm_setzero_ps.
        (_mm_load_ss, _mm_load1_ps): Use _mm_set* form.
        (_mm_load_ps, _mm_loadr_ps): Use raw dereference.
        (_mm_store_ss): Use __builtin_ia32_vec_ext_v4sf.
        (_mm_store_ps): Use raw dereference.
        (_mm_store1_ps): Use _mm_storeu_ps.
        (_mm_storer_ps): Use _mm_store_ps.
        (_mm_extract_pi16): Use __builtin_ia32_vec_ext_v4hi.
        (_mm_insert_pi16): Use __builtin_ia32_vec_set_v4hi.

2005-01-11  Stan Shebs  <shebs@apple.com>

        * config/rs6000/rs6000.c (machopic_output_stub): Issue
        ldu instead of lwzu if 64-bit -mdynamic-no-pic.

2005-01-11  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/18761
        * config/rs6000/rs6000.c (rs6000_special_round_type_align):
        Skip all DECLs except for FIELD_DECLs.

2005-01-11  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (override_options): Return error if
        -mbackchain, -mpacked-stack and -mhard-float are used together.
        (s390_va_start): Remove the backchain && packed-stack special case.
        (s390_gimplify_va_arg): Likewise.
        * doc/invoke.texi: Remove the ABI incompatibility note.

2005-01-11  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (struct s390_frame_layout): Remove 
        save_backchain_p.
        (s390_frame_info, s390_emit_prologue): Replace occurrences of
        save_backchain_p with TARGET_BACKCHAIN.

2005-01-11  Alan Modra  <amodra@bigpond.net.au>

        PR target/18916
        * builtins.c (std_gimplify_va_arg_expr): Adjust alignment of *ap.
        * expr.h (struct locate_and_pad_arg_data): Add "boundary".
        * function.c (locate_and_pad_parm): Set new field.
        (assign_parm_find_stack_rtl): Use it instead of FUNCTION_ARG_BOUNDARY.
        Tweak where_pad test to include "none".  Always set mem align for
        stack_parm.
        (assign_parm_adjust_stack_rtl): Discard stack_parm if alignment
        not sufficient for type.
        (assign_parm_setup_block): If stack_parm is zero on entry, always
        make a new stack local.  Block move old stack parm if necessary
        to new aligned stack local.
        (assign_parm_setup_stack): Use a block move to handle
        potentially misaligned entry_parm.
        (assign_parms_unsplit_complex): Specify required alignment when
        creating stack local.
        * calls.c (compute_argument_addresses): Override alignment of stack
        arg calculated from its type with the alignment given by
        FUNCTION_ARG_BOUNDARY.
        (store_one_arg): Likewise.

2005-01-11  Jan Beulich  <jbeulich@novell.com>

        * config/ia64/ia64.md (zero_extendsidi2): Replace zxt4 by addp4.
        Change respective itanium_class attribute to ialu.
        (shladdp4_internal): New.
        * config/ia64/predicates.md (shladd_log2_operand): New.

2005-01-11  Richard Henderson  <rth@redhat.com>

        * expr.c (store_constructor): Use rtvec_alloc instead of
        alloca+gen_rtvec_v, and an incorrect number passed to alloca.

2005-01-11  Kazu Hirata  <kazu@cs.umass.edu>

        * config/alpha/alpha.c, config/i386/mmx.md: Fix comment typos.

2005-01-11  Alan Modra  <amodra@bigpond.net.au>

        * varasm.c (default_section_type_flags_1): Don't set SECTION_SMALL.
        * config/ia64/ia64.c (TARGET_SECTION_TYPE_FLAGS): Define.
        (TARGET_RWRELOC): Define.
        (ia64_rwreloc_section_type_flags): Delete.
        (ia64_section_type_flags): New function.
        * config/ia64/hpux.h (TARGET_SECTION_TYPE_FLAGS): Don't define.
        (TARGET_RWRELOC): Define.

2005-01-10  David Mosberger  <davidm@hpl.hp.com>

        PR target/18987
        * config/ia64/ia64.c (process_set): For alloc insn, only call
        process_epilogue is !frame_pointer_needed.

2005-01-10  Roger Sayle  <roger@eyesopen.com>

        PR c++/19355
        * c-common.c (c_common_truthvalue_conversion): TRUTH_NOT_EXPR is a
        unary operator and can't be treated as a binary/comparison operator.

2005-01-10  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_function_value): Use type_natural_mode.
        (ix86_return_in_memory): Likewise.
        (function_arg_advance):  Likewise.  Mirror structure in function_arg
        for choosing register to advance.

2005-01-10  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-vectorizer.c, tree.def: Fix comment typos.

2005-01-10  Mark Dettinger  <dettinge@de.ibm.com>

        * config/s390/s390.c (struct processor_costs): 4 new fields:
        ddbr, ddr, debr, der.
        (s390_rtx_costs): More precise handling of divide instructions.

2005-01-10  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/t-aix43 (BOOT_LDFLAGS): Define.

2005-01-10  Jan Beulich  <jbeulich@novell.com>

        * config/ia64/ia64.c (ia64_in_small_data_p): Also handle the section
        names resulting from -ffunction-sections/-fdata-sections and linkonce
        ones.
        * varasm.c (default_section_type_flags_1): Also set SECTION_SMALL
        based on the section name. Rearrange the section name comparison logic
        slightly so that each section name is compared against at most once.

2005-01-10  Ben Elliston  <bje@au.ibm.com>

        * doc/invoke.texi (Code Gen Options): Add PowerPC to the list of
        targets for which -fPIC reduces limitations on the GOT size.

2005-01-09  Falk Hueffner  <falk@debian.org>

        * fold-const.c (fold): Also handle EXACT_DIV_EXPR when folding
        X/C1 cmpop C2.

2005-01-09  David Edelsohn  <edelsohn@gnu.org>

        PR target/18720
        * collect2.c (main): Set aixrtl_flag for -brtl option.
        (resolve_lib_name): Search for .so file extension before .a
        if aixrtl_flag set.

2005-01-09  Dorit Naishlos  <dorit@il.ibm.com>

        * tree-vectorizer.c (vect_enhance_data_refs_alignment): Add dump prints.
        (vect_analyze_data_refs_alignment): Add dump prints.

2005-01-09  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (vect_analyze_offset_expr): Use 
        expr_invariant_in_loop_p.
        Initialize outputs first thing in the function.
        (vect_update_ivs_after_vectorizer): Call initial_condition_in_loop_num.
        (vect_is_simple_iv_evolution): Call initial_condition_in_loop_num.
        (vect_analyze_pointer_ref_access): Check that the initial condition of 
        the access function is loop invariant.

2005-01-09  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (bdesc_2arg): Update names for mmx_ prefixes.
        (ix86_expand_builtin): Likewise.  Frob MASKMOVQ wrt the input mem
        just like MASKMOVDQU.  Return plain zero for MMX_ZERO.
        * config/i386/i386.md (MMXMODEI, mov<MMXMODEI>,
        mov<MMXMODEI>_internal_rex64, mov<MMXMODEI>_internal, movv2sf,
        movv2sf_internal_rex64, movv2sf_internal, MMXMODE,
        movmisalign<MMXMODE>, mmx_pmovmskb, mmx_maskmovq, mmx_maskmovq_rex,
        sse_movntdi, addv8qi3, addv4hi3, addv2si3, mmx_adddi3, ssaddv8qi3,
        ssaddv4hi3, usaddv8qi3, usaddv4hi3, subv8qi3, subv4hi3, subv2si3,
        mmx_subdi3, sssubv8qi3, sssubv4hi3, ussubv8qi3, ussubv4hi3,
        mulv4hi3, smulv4hi3_highpart, umulv4hi3_highpart, mmx_pmaddwd,
        sse2_umulsidi3, mmx_iordi3, mmx_xordi3, mmx_anddi3, mmx_nanddi3,
        mmx_uavgv8qi3, mmx_uavgv4hi3, mmx_psadbw, mmx_pinsrw, mmx_pinsrw,
        mmx_pextrw, mmx_pshufw, eqv8qi3, eqv4hi3, eqv2si3, gtv8qi3, gtv4hi3,
        gtv2si3, umaxv8qi3, smaxv4hi3, uminv8qi3, sminv4hi3, ashrv4hi3,
        ashrv2si3, lshrv4hi3, lshrv2si3, mmx_lshrdi3, ashlv4hi3, ashlv2si3,
        mmx_ashldi3, mmx_packsswb, mmx_packssdw, mmx_packuswb, mmx_punpckhbw,
        mmx_punpckhwd, mmx_punpckhdq, mmx_punpcklbw, mmx_punpcklwd, 
        mmx_punpckldq, emms, addv2sf3, subv2sf3, subrv2sf3, gtv2sf3, gev2sf3,
        eqv2sf3, pfmaxv2sf3, pfminv2sf3, mulv2sf3, femms, pf2id, pf2iw,
        pfacc, pfnacc, pfpnacc, pi2fw, floatv2si2, pfrcpv2sf2, pfrcpit1v2sf3,
        pfrcpit2v2sf3, pfrsqrtv2sf2, pfrsqit1v2sf3, pmulhrwv4hi3, pswapdv2si2,
        pswapdv2sf2): Move to mmx.md; rename as necessary with leading
        mmx_ prefix.
        (mmx_clrdi, pavgusb): Remove.
        (ldmxcsr, stmxcsr, sfence, sfence_insn): Move to sse.md; rename 
        with leading sse_ prefix.
        * config/i386/sse.md: Receive them.
        * config/i386/mmx.md: New file.
        (MMXMODE12, MMXMODE24, mmxvecsize): New.
        (subrv2sf3): Turn into expander for normal subtraction.
        (mmx_addv2sf3, mmx_mulv2sf3, mmx_smaxv2sf3, mmx_sminv2sf3,
        mmx_eqv2sf3, mmx_mulv4hi3, mmx_smulv4hi3_highpart,
        mmx_umulv4hi3_highpart, mmx_pmaddwd, mmx_pmulhrwv4hi3, sse2_umulsidi3,
        mmx_umaxv8qi3, mmx_smaxv4hi3, mmx_uminv8qi3, mmx_sminv4hi3): Mark
        commutative; use ix86_binary_operator_ok.
        (mmx_add<MMXMODEI>3, mmx_ssadd<MMXMODE12>3, mmx_usadd<MMXMODE12>3,
        mmx_sub<MMXMODEI>3, mmx_sssub<MMXMODE12>3, mmx_ussub<MMXMODE12>3
        mmx_ashr<MMXMODE24>3, mmx_lshr<MMXMODE23>3, mmx_ashl<MMXMODE24>3
        mmx_eq<MMXMODEI>3, mmx_gt<MMXMODEI>3, mmx_and<MMXMODEI>3, 
        mmx_nand<MMXMODEI>3, mmx_ior<MMXMODEI>3, mmx_xor<MMXMODEI>3):
        Macroize from existing patterns; use ix86_binary_operator_ok.
        (mmx_packsswb, mmx_packssdw, mmx_packuswb): Add memory alternative.
        (mmx_punpckhbw, mmx_punpcklbw, mmx_punpckhwd, mmx_punpcklwd,
        mmx_punpckhdq, mmx_punpckhdq, mmx_punpckldq): Likewise.  Model
        with vec_select+vec_concat.
        (mmx_pshufw, mmx_pshufw_1): Likewise.
        (mmx_uavgv8qi3): Merge pavgusb.  Model correcty.
        (mmx_uavgv4hi3): Model correctly.
        * config/i386/mmintrin.h (_mm_and_si64, _mm_andnot_si64, _mm_or_si64,
        _mm_xor_si64): Remove casts.

2005-01-09  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/19224
        * tree-scalar-evolution.c (get_instantiated_value,
        set_instantiated_value): New functions.
        (instantiate_parameters_1): Cache the results.
        (instantiate_parameters, resolve_mixers): Initialize and free
        the cache.

2005-01-08  David Edelsohn  <edelsohn@gnu.org>

        * config/i386/i386.md (addhi_4): Correct reference in comment.
        (addqi_4): Same.

2005-01-08  Richard Henderson  <rth@redhat.com>

        * config/i386/emmintrin.h (_mm_cvtsi128_si32): Move earlier.
        (_mm_cvtsi128_si64x): Likewise.
        (_mm_srl_epi64, _mm_srl_epi32, _mm_srl_epi16, _mm_sra_epi32,
        _mm_sra_epi16, _mm_sll_epi64, _mm_sll_epi32, _mm_sll_epi16): Use
        the _mm_{srl,sll}i_foo counterpart, and _mm_cvtsi128_si32.
        * config/i386/i386-modes.def: Add V16HI, V32QI, V4DF, V8SF.
        * config/i386/i386-protos.h: Update.
        * config/i386/i386.c (print_operand): Add 'H'.
        (ix86_fixup_binary_operands): Split out from ...
        (ix86_expand_binary_operator): ... here.
        (ix86_fixup_binary_operands_no_copy): New.
        (ix86_expand_fp_absneg_operator): Handle vector mode results.
        (bdesc_2arg): Update names for sse{,2,3}_ prefixes.
        (ix86_init_mmx_sse_builtins): Remove *maskncmp* special cases.
        (safe_vector_operand): Use CONST0_RTX.
        (ix86_expand_binop_builtin): Use ix86_fixup_binary_operands.
        (ix86_expand_builtin): Merge CODE_FOR_sse2_maskmovdqu_rex64 and
        CODE_FOR_sse2_maskmovdqu.  Special case SSE version of MASKMOVDQU
        expansion.  Update names for sse{,2,3}_ prefixes.  Remove *maskncmp*
        special cases.
        * config/i386/i386.h (IX86_BUILTIN_CMPNGTSS): New.
        (IX86_BUILTIN_CMPNGESS): New.
        * config/i386/i386.md (UNSPEC_FIX_NOTRUNC): New.
        (attr type): Add sselog1.
        (attr unit, attr memory): Handle it.
        (movti, movti_internal, movti_rex64): Move near other integer moves.
        (movtf, movtf_internal): Move near other fp moves.
        (SSEMODE, SSEMODEI, vec_setv2df, vec_extractv2df, vec_initv2df,
        vec_setv4sf, vec_extractv4sf, vec_initv4sf, movv4sf, movv4sf_internal,
        movv2df, movv2df_internal, mov<SSEMODEI>, mov<SSEMODEI>_internal, 
        movmisalign<SSEMODE>, sse_movups_1, sse_movmskps, sse_movntv4sf,
        sse_movhlps, sse_movlhps, sse_storehps, sse_loadhps, sse_storelps,
        sse_loadlps, sse_loadss, sse_loadss_1, sse_movss, sse_storess,
        sse_shufps, addv4sf3, vmaddv4sf3, subv4sf3, vmsubv4sf3, negv4sf2,
        mulv4sf3, vmmulv4sf3, divv4sf3, vmdivv4sf3, rcpv4sf2, vmrcpv4sf2,
        rsqrtv4sf2, vmrsqrtv4sf2, sqrtv4sf2, vmsqrtv4sf2, sse_andv4sf3,
        sse_nandv4sf3, sse_iorv4sf3, sse_xorv4sf3, sse2_andv2df3, 
        sse2_nandv2df3, sse2_iorv2df3, sse2_xorv2df3, sse2_andv2di3, 
        sse2_nandv2di3, sse2_iorv2di3, sse2_xorv2di3, maskcmpv4sf3, 
        vmmaskcmpv4sf3, sse_comi, sse_ucomi, sse_unpckhps, sse_unpcklps,
        smaxv4sf3, vmsmaxv4sf3, sminv4sf3, vmsminv4sf3, cvtpi2ps, cvtps2pi,
        cvttps2pi, cvtsi2ss, cvtsi2ssq, cvtss2si, cvtss2siq, cvttss2si,
        cvttss2siq, addv2df3, vmaddv2df3, subv2df3, vmsubv2df3, mulv2df3,
        vmmulv2df3, divv2df3, vmdivv2df3, smaxv2df3, vmsmaxv2df3, sminv2df3,
        vmsminv2df3, sqrtv2df2, vmsqrtv2df2, maskcmpv2df3, vmmaskcmpv2df3,
        sse2_comi, sse2_ucomi, sse2_movmskpd, sse2_pmovmskb, sse2_maskmovdqu,
        sse2_maskmovdqu_rex64, sse2_movntv2df, sse2_movntv2di, sse2_movntsi,
        cvtdq2ps, cvtps2dq, cvttps2dq, cvtdq2pd, cvtpd2dq, cvttpd2dq,
        cvtpd2pi, cvttpd2pi, cvtpi2pd, cvtsd2si, cvtsd2siq, cvttsd2si,
        cvttsd2siq, cvtsi2sd, cvtsi2sdq, cvtsd2ss, cvtss2sd, cvtpd2ps,
        cvtps2pd, addv16qi3, addv8hi3, addv4si3, addv2di3, ssaddv16qi3,
        ssaddv8hi3, usaddv16qi3, usaddv8hi3, subv16qi3, subv8hi3, subv4si3,
        subv2di3, sssubv16qi3, sssubv8hi3, ussubv16qi3, ussubv8hi3, mulv8hi3,
        smulv8hi3_highpart, umulv8hi3_highpart, sse2_umulsidi3,
        sse2_umulv2siv2di3, sse2_pmaddwd, sse2_uavgv16qi3, sse2_uavgv8hi3,
        sse2_psadbw, sse2_pinsrw, sse2_pextrw, sse2_pshufd, sse2_pshuflw,
        sse2_pshufhw, eqv16qi3, eqv8hi3, eqv4si3, gtv16qi3, gtv8hi3, 
        gtv4si3, umaxv16qi3, smaxv8hi3, uminv16qi3, sminv8hi3, ashrv8hi3,
        ashrv4si3, lshrv8hi3, lshrv4si3, lshrv2di3, ashlv8hi3, ashlv4si3,
        ashlv2di3, sse2_ashlti3, sse2_lshrti3, sse2_unpckhpd, sse2_unpcklpd,
        sse2_packsswb, sse2_packssdw, sse2_packuswb, sse2_punpckhbw, 
        sse2_punpckhwd, sse2_punpckhdq, sse2_punpcklbw, sse2_punpcklwd,
        sse2_punpckldq, sse2_punpcklqdq, sse2_punpckhqdq, sse2_movupd,
        sse2_movdqu, sse2_movdq2q, sse2_movdq2q_rex64, sse2_movq2dq, 
        sse2_movq2dq_rex64, sse2_loadd, sse2_stored, sse2_storehpd,
        sse2_loadhpd, sse2_storelpd, sse2_loadlpd, sse2_movsd, sse2_loadsd,
        sse2_loadsd_1, sse2_storesd, sse2_shufpd, sse2_clflush, sse2_mfence,
        mfence_insn, sse2_lfence, lfence_insn, mwait, monitor, addsubv4sf3,
        addsubv2df3, haddv4sf3, haddv2df3, hsubv4sf3, hsubv2df3, movshdup,
        movsldup, lddqu, loadddup, movddup): Move to sse.md.  Any with
        non-optabs meanings renamed with an "sse{,2,3}_" prefix at the
        same time.
        (SSEPUSH, push<SSEPUSH>): Remove.
        (MMXPUSH, push<MMXPUSH>): Remove.
        (sse_movaps, sse_movaps_1, sse_movups): Remove.
        (sse2_movapd, sse2_movdqa, sse2_movq): Remove.
        (sse2_andti3, sse2_nandti3, sse2_iorti3, sse2_xorti3): Remove.
        (sse_clrv4sf, sse_clrv2df, sse2_clrti): Remove.
        (maskncmpv4sf3, vmmaskncmpv4sf3): Remove.
        (maskncmpv2df3, vmmaskncmpv2df3): Remove.
        (ashrv8hi3_ti, ashrv4si3_ti, lshrv8hi3_ti, lshrv4si3_ti): Remove.
        (lshrv2di3_ti, ashlv8hi3_ti, ashlv4si3_ti, ashlv2di3_ti): Remove.
        * config/i386/athlon.md (athlon_sselog_load): Handle sselog1.
        (athlon_sselog_load_k8, athlon_sselog, athlon_sselog_k8): Likewise.
        * config/i386/ppro.md (ppro_sse_div_V4SF_load): Fix memory attr.
        (ppro_sse_log_V4SF_load): Similarly.  Handle sselog1.
        (ppro_sse_log_V4SF): Handle sselog1.
        * config/i386/predicates.md (const_0_to_1_operand): New.
        (const_0_to_255_mul_8_operand): New.
        (const_1_to_31_operand): Rename from const_int_1_31_operand.
        (const_2_to_3_operand, const_4_to_7_operand): New.
        * config/i386/sse.md: New file.
        (SSEMODE12, SSEMODE24, SSEMODE124, SSEMODE248, ssevecsize): New.
        (sse_movups): Rename from sse_movups_1.
        (sse_loadlss): Rename from sse_loadss_1.
        (andv4sf3, iorv4sf3, xorv4sf3, andv2df3): Remove the sse prefix
        from the name.
        (negv4sf2): Use ix86_expand_fp_absneg_operator.
        (absv4sf2, negv2df, absv2df): New.
        (addv4sf3): Add expander to call ix86_fixup_binary_operands_no_copy.
        (subv4sf3, mulv4sf3, divv4sf3, smaxv4sf3, sminv4sf3, andv4sf3,
        iorv4sf3, xorv4sf3, addv2df3, subv2df3, mulv2df3, divv2df3,
        smaxv2df3, sminv2df3, andv2df3, iorv2df3, xorv2df3, mulv8hi3,
        umaxv16qi3, smaxv8hi3, uminv16qi3, sminv8hi3): Likewise.
        (sse3_addsubv4sf3): Model correctly.
        sse3_haddv4sf3, sse3_hsubv4sf3, sse3_addsubv2df3, sse3_haddv2df3,
        sse3_hsubv2df3, sse2_ashlti3, sse2_lshrti3): Likewise.
        (sse_movhlps): Model with vec_select+vec_concat.
        (sse_movlhps, sse_unpckhps, sse_unpcklps, sse3_movshdup, 
        sse3_movsldup, sse_shufps, sse_shufps_1, sse2_unpckhpd, sse3_movddup,
        sse2_unpcklpd, sse2_shufpd, sse2_shufpd_1, sse2_punpckhbw,
        sse2_punpcklbw, sse2_punpckhwd, sse2_punpcklwd, sse2_punpckhdq,
        sse2_punpckldq, sse2_punpckhqdq, sse2_punpcklqdq, sse2_pshufd,
        sse2_pshufd_1, sse2_pshuflw, sse2_pshuflw_1, sse2_pshufhw, 
        sse2_pshufhw_1): Likewise.
        (neg<SSEMODEI>2, one_cmpl<SSEMODEI>2): New.
        (add<SSEMODEI>3, sse2_ssadd<SSEMODE12>3, sse2_usadd<SSEMODE12>3,
        sub<SSEMODEI>3, sse2_sssub<SSEMODE12>3, sse2_ussub<SSEMODE12>3,
        ashr<SSEMODE24>3, lshr<SSEMODE248>3, sse2_eq<SSEMODE124>3,
        sse2_gt<SSEMODDE124>3, and<SSEMODEI>3, sse_nand<SSEMODEI>3,
        ior<SSEMODEI>3, xor<SSEMODEI>3): Macroize from existing patterns.       
        (addv4sf3, sse_vmaddv4sf3, mulv4sf3, sse_vmmulv4sf3, smaxv4sf3,
        sse_vmsmaxv4sf3, sminv4sf3, sse_vmsminv4sf3, addv2df3, sse2_vmaddv2df3,
        mulv2df3, sse2_vmmulv2df3, smaxv2df3, sse2_vmsmaxv2df3, sminv2df3,
        sse2_vmsminv2df3, umaxv16qi3, smaxv8hi3, uminv16qi3
        sminv8hi3): Mark commutative
        operands.  Use ix86_binary_operator_ok.
        (sse_unpckhps, sse_unpcklps, sse2_packsswb, sse2_packssdw,
        sse2_packuswb, sse2_punpckhbw, sse2_punpcklbw, sse2_punpckhwd,
        sse2_punpcklwd, sse2_punpckhdq, sse2_punpckldq, sse2_punpckhqdq,
        sse2_punpcklqdq): Allow operand2 in memory.
        (sse_movhlps, sse_movlhps, sse2_unpckhpd, sse2_unpcklpd
        sse2_movsd): Add memory alternatives.
        (sse_storelps): Turn expander into an insn; split after reload.
        (sse_storess, sse2_loadhpd, sse2_loadlpd): Add non-xmm inputs.
        (sse2_storehpd, sse2_storelpd): Add non-xmm outputs.

2005-01-08  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * configure.ac (DWARF-2 debug_line): Use objdump.
        * configure: Regenerate.

2005-01-08  Jeff Law  <law@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        PR tree-optimization/18241
        * tree-nrv.c (tree_nrv): Ignore volatile return values.
        * tree-ssa-dse.c (dse_optimize_stmt): Do not optimize
        statements with volatile operands.
        * tree-ssa-operands.c (add_stmt_operand): Do add volatile
        operands after marking a statement with has_volatile_ops.

2005-01-08  Roger Sayle  <roger@eyesopen.com>

        * tree.c (int_fits_type_p): Always honor integer constant
        TYPE_MIN_VALUE and TYPE_MAX_VALUE if they exist.

2005-01-08  Roger Sayle  <roger@eyesopen.com>

        * ifcvt.c (find_if_case_1): Reinstate 2005-01-04 change, now that
        the latent bug in rtl_delete_block has been resolved.

2005-01-08  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/t-iris6 (MULTILIB_DIRNAMES): Use -mabi argument values.
        (MULTILIB_OSDIRNAMES): Use the standard lib, lib32 and lib64.

2005-01-08  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/t-slibgcc-irix (SHLIB_LINK): Install a copy of the
        library as @multilib_dir@/$(SHLIB_SONAME).

2005-01-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * configure.ac (HAVE_AS_OFFSETABLE_LO10): Fix typo.
        * configure: Regenerate.

2005-01-07  Jakub Jelinek  <jakub@redhat.com>

        * c-common.c (handle_mode_attribute): For ENUMERAL_TYPE, also copy
        TYPE_MODE.

2005-01-07  David Edelsohn  <edelsohn@gnu.org>

        PR target/13674
        * config/rs6000/rs6000.c (rs6000_legitimize_reload_address):
        Convert non-word aligned offset address using ld/std into
        indirect address.

2005-01-07  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (sse_loadhps splitter): Fix operand number typo.

2005-01-07  Richard SAndiford  <rsandifo@redhat.com>

        * tree.h (IS_EXPR_CODE_CLASS): Use a straight-forward range check.

2005-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/19283
        * fold-const.c (fold_widened_comparison): Return NULL if shorter_type
        is not shorter than the original type.

        PR rtl-optimization/19012
        * config/i386/i386.md (addqi_1_slp): Set memory attribute.

        PR rtl-optimization/18861
        * cfgbuild.c (BLOCK_USED_BY_TABLEJUMP): Define.
        (FULL_STATE): Define.
        (mark_tablejump_edge): New function.
        (purge_dead_tablejump_edges): New function.
        (find_bb_boundaries): Use it.

        PR tree-optimization/18828
        * builtins.c (expand_builtin_next_arg): Remove argument and all
        the argument checking.
        (expand_builtin): Adjust caller.
        (expand_builtin_va_start): Likewise.  Remove error for too many
        arguments.
        (fold_builtin_next_arg): Issue error for too many arguments.
        After checking arguments, replace them with magic arguments that
        prevent further checking of the args.

2005-01-06  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa64-hpux.h (STARTFILE_SPEC): Fix typo in spec.

2005-01-06  Roger Sayle  <roger@eyesopen.com>

        PR target/6077
        * gcc.c (input_suffix_matches): Tweak the semantics of %{.s:...}
        and %{.S:...} (and their negative variants) to test whether the
        input file is assembler or pre-processed-assembler independent of
        the actual filename extension.

2005-01-06  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_subreg): Simplify truncations of shifts
        of sign or zero extended values.

2005-01-06  Geoffrey Keating  <geoffk@apple.com>

        * c-cppbuiltin.c (builtin_define_float_constants): Set __*_EPSILON__
        for IBM long double format correctly.

2005-01-06  Daniel Berlin <dberlin@dberlin.org>
        
        Fix PR tree-optimization/18792

        * tree-data-ref.c (build_classic_dist_vector): Change first_loop
        to first_loop_depth, and use loop depth instead of loop number.
        (build_classic_dir_vector): Ditto.
        (compute_data_dependences_for_loop): Use depth, not loop number.
        * tree-loop-linear.c (try_interchange_loops): Use loop depth, not loop 
        number. Pass in loops, instead of loop numbers.
        (gather_interchange_stats): Ditto.
        (linear_transform_loops): Ditto.

2005-01-06  Richard Sandiford  <rsandifo@redhat.com>

        PR rtl-opt/13299
        * loop.c (get_monotonic_increment, biased_biv_fits_mode_p,
        biv_fits_mode_p, extension_within_bounds_p): New functions.
        (check_ext_dependent_givs): Use them.

2005-01-06  Roger Sayle  <roger@eyesopen.com>

        * cfgrtl.c (rtl_delete_block): A basic block may be followed by
        more than one barrier, in which case we should delete them all.

2005-01-06  Tobias Schlueter  <tobias.schlueter@physik.uni-muenchen.de>

        * gcc.c (process_command): Change year in 'gcc --version' to 2005.

2005-01-05  Daniel Berlin  <dberlin@dberlin.org>
        
        Fix PR middle-end/19286
        Fix PR debug/19267
        * dwarf2out.c (gen_subprogram_die): If we've already tried to
        output this subprogram, simply ignore this attempt to do it again.
        (add_abstract_origin_attribute): Don't abort trying to add the abstract
        origin attribute if it's not possible.
        (gen_block_die): Don't ignore subblocks of "unused" blocks.
        (decls_for_scope): Ditto.
        * gimple-low.c (mark_blocks_with_used_subblocks): Remove.
        (mark_used_blocks): Don't call mark_blocks_with_used_subblocks.
        
2005-01-05  Richard Henderson  <rth@redhat.com>

        PR target/11327
        * config/i386/i386.c (BUILTIN_DESC_SWAP_OPERANDS): New.
        (bdesc_2arg): Use it.
        (ix86_expand_binop_builtin): Force operands into registers
        when optimizing.
        (ix86_expand_unop_builtin, ix86_expand_unop1_builtin,
        ix86_expand_sse_compare, ix86_expand_sse_comi, 
        ix86_expand_builtin): Likewise.

2005-01-05  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (rtx_needs_barrier): Handle CONST_VECTOR
        and VEC_SELECT.
        * config/ia64/vect.md (mulv8qi3): Re-implement with mix_[rl].
        (mulv4hi3): Set itanium_class mmmul.
        (fpack_sfxf, fpack_xfsf, fpack_xfxf): Remove.
        (fpack): Rename from fpack_sfsf.

2005-01-05  Richard Henderson  <rth@redhat.com>

        PR rtl-opt/10692
        * reload1.c (do_input_reload): Restrict the optimization deleteing
        a previous output reload to RELOAD_FOR_INPUT.

2005-01-05  Steven Bosscher  <stevenb@suse.de>

        * combine.c (expand_compound_operation)  <ZERO_EXTRACT>: Add
        comment that we fall through after case.
        (mark_used_regs_combine): Don't expect a SIGN_EXTRACT in a SET_DEST.
        (distribute_links): Likewise.
        * cse.c (cse_insn): Likewise.
        * cselib.c (cselib_invalidate_mem): Likewise.
        * df.c: Update comments at the top of the file.
        (read_modify_subreg_p): Update comments here too.
        (df_def_record_1): Don't expect a SIGN_EXTRACT in a SET_DEST.
        * flow.c (mark_set_1): Likewise.
        (mark_used_regs): Likewise.
        * gcse.c (mems_conflict_for_gcse_p): Likewise.
        (canon_list_insert): Likewise.
        (mark_set): Likewise.
        (try_replace_reg): Likewise.
        (store_killed_in_insn): Likewise.
        * loop.c (count_one_set): Likewise.
        (basic_induction_var): Likewise.
        * postreload-gcse.c (find_mem_conflicts): Likewise.
        * postreload.c (reload_combine_note_store): Likewise.
        (move2add_note_store): Likewise.
        * reload.c (find_equiv_reg): Likewise.
        (mark_referenced_resources): Likewise.
        * rtlanal.c (set_noop_p): Likewise.
        (note_stores): Likewise.
        (note_uses): Likewise.
        * sched-deps.c (sched_analyze_1): Likewise.
        * sched-rgn.c (check_live_1): Likewise.
        (update_live_1): Likewise.
        * config/i860/i860.c: Likewise.

        * rtl.dec (SIGN_EXTRACT): Document that this cannot appear as
        an lvalue.
        (ZERO_EXTRACT): Mention that this one can be an lvalue.

        * doc/rtl.texi: Update documentation for bit-fields and SET.

2005-01-05  Roger Sayle  <roger@eyesopen.com>

        * ifcvt.c (find_if_case_1): Revert 2005-01-04 change.

2005-01-05  Jan Hubicka  <jh@suse.cz>
            Richard Henderson  <rth@redhat.com>

        PR target/18910
        * config/i386/i386.c (ix86_expand_move): Handle tls symbols 
        with an offset.

2005-01-05  Richard Henderson  <rth@redhat.com>

        PR target/12902
        * config/i386/i386.md (sse_movhps, sse_movlps): Remove.
        (sse_shufps): Change operand 3 to const_int_operand.
        (sse2_storelps): Fix typo in template.
        (sse_storehps, sse_loadhps, sse_storelps, sse_loadlps): New.
        * config/i386/i386.c (ix86_expand_vector_move_misalign): Use them.
        (ix86_expand_builtin): Likewise.

2005-01-05  Julian Brown  <julian@codesourcery.com>

        * config/arm/arm.c (arm_return_in_memory): Treat complex types
        as aggregates for AAPCS ABIs.

2005-01-05  Stan Shebs  <shebs@apple.com>

        * unwind-dw2-fde-darwin.c (examine_objects): Use 64-bit
        Mach-O getters if ppc64.
        * config/darwin.c (darwin_asm_output_dwarf_delta): Obey
        size argument.
        * config/darwin.h (ASM_PREFERRED_EH_DATA_FORMAT): Use
        signed four-byte field for global code case.
        (STARTFILE_SPEC): Avoid crt2.o for 64-bit compilation.

2005-01-05  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19100
        * c-common.c: Include real.h.
        (c_common_truthvalue_conversion): Avoid destructively modifying expr.
        Correctly handle TREE_CONSTANT_OVERFLOW for INTEGER_CST.
        Correctly handle TREE_CONSTANT_OVERFLOW and NaNs for REAL_CST.
        * Makefile.in (c-common.o): Update dependencies.

2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>

        * c-parse.in (asm_string): Add trailing semicolon.

2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>

        * c-parse.in (asm_string): New.  Don't allow wide strings in
        'asm'.
        (simple_asm_expr, asm_argument, asm_operand, asm_clobbers): Use
        asm_string instead of STRING.

2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>

        * c-typeck.c (constructor_no_implicit): Remove.
        (set_designator, process_init_element): Don't check
        constructor_no_implicit.

2005-01-05  J"orn Rennecke <joern.rennecke@st.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/16482
        * lcm.c (create_pre_exit): New.
        (optimize_mode_switching): In MODE_ENTRY / MODE_EXIT case, set
        ENTRY_EXIT_EXTRA to 3.  Use create_pre_exit.

2004-01-05  Richard Earnshaw  <rearnsha@arm.com>

        * arm.h (TARGET_OPTIONS): Correctly record -mhard-float and
        -msoft-float in target_float_switch.
        * arm.c (arm_override_options): Fix processing of target_float_switch.

2004-01-05  Richard Earnshaw  <rearnsha@arm.com>

        * arm/vfp.md (arm_movsi_vfp): Hide VFP register classes from register
        preferencing.

2004-01-05  Uros Bizjak  <uros@kss-loka.si>

        * doc/invoke.texi (Intel 386 and AMD x86-64 Options):
        Replace i387 with 'i386 compiler' in -mfpmath=sse option.

2005-01-04  Roger Sayle  <roger@eyesopen.com>

        * ifcvt.c (find_if_case_1): Avoid creating an empty forwarder block,
        if deleting the then-block allows the test-block to fallthru to the
        else-block.

2005-01-04  Andrew Pinski  <pinskia@physics.uc.edu>

        PR c/19152
        * c-decl.c (diagnose_mismatched_decls): Accept "extern inline" declared
        after the full declaration if the are in two different TUs.

2005-01-04  Richard Henderson  <rth@redhat.com>

        PR tree-opt/19158
        * tree-sra.c (generate_one_element_init): Just
        call gimplify_and_add.
        (generate_element_init): Record the
        new referenced variables and mark them for renaming
        and split out to ...
        (generate_element_init_1): This.
        (scalarize_init): Don't call push_gimplify_context/
        pop_gimplify_context.

2005-01-04  Geoffrey Keating  <geoffk@apple.com>

        * toplev.c (get_src_pwd): Handle failure of getpwd().

2005-01-04  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_single_bit_test): Delete unreachable handling
        of TRUTH_NOT_EXPR.
        (fold): Don't call fold_single_bit_test with a TRUTH_NOT_EXPR, as
        all the cases handled by it are inverted by invert_truthvalue.

2005-01-04  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.md (save_register_windowdi): Add missing mode.
        (save_register_windowsi): Likewise.

2005-01-04  Richard Henderson  <rth@redhat.com>

        * tree-mudflap.c (mf_varname_tree): Fix thinko setting declname.

2005-01-04  Uros Bizjak  <uros@kss-loka.si>

        PR middle-end/17767
        * cse.c (fold_rtx) [RTX_COMPARE, RTX_COMM_COMPARE]: Don't attempt
        any simplifications of vector mode comparison operators.
        * simplify-rtx.c (simplify_relational_operation): Fix variable name.

2005-01-04  Paolo Bonzini  <bonzini@gnu.org>
            Devang Patel  <dpatel@apple.com>

        PR tree-optimization/18308
        * tree-if-conv.c (add_to_dst_predicate_list): Gimplify
        the operands before creating a new expression.
        * dojump.c (do_jump): Make drop_through_label available
        for all cases.  Add expansion of COND_EXPR.

2005-01-04  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (vect_analyze_offset_expr): Test for
        INTEGER_CST instead of TREE_CONSTANT.
        (vect_gen_niters_for_prolog_loop): Test for INTEGER_CST
        instead of TREE_CONSTANT.
        (vect_analyze_pointer_ref_access): Test for INTEGER_CST
        instead of TREE_CONSTANT.

2005-01-04  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * tree-eh.c (replace_goto_queue): Return early if the queue is empty.

2005-01-04  Uros Bizjak  <uros@kss-loka.si>

        PR target/19240
        * config/i386/i386.md (*fop_df_1_i387): Disable for TARGET_SSE_MATH.
        (*fop_df_1_i387): Disable for (TARGET_SSE2 && TARGET_SSE_MATH).

2005-01-03  Richard Henderson  <rth@redhat.com>

        * fold-const.c (force_fit_type): Cope with types larger than 2 HWI.
        (fold_convert_const_int_from_int, fold_convert_const_int_from_real,
        fold_convert_const_real_from_real): Split out from ...
        (fold_convert_const): ... here.

2005-01-03  Richard Henderson  <rth@redhat.com>

        PR target/19235
        * config/i386/i386.md (movdi_2): Separate SSE1 and SSE2 alternatives.
        (mov<MMXMODEI>_internal): Likewise.
        (movdf_nointeger): Prefer Y while not preferring, but allowing, x.
        Add V2SF case; use it for SSE1; don't use TI.
        (movdf_integer): Likewise.
        (mov<SSEMODEI>_internal, movti_internal): Force V4SF for SSE1.

2005-01-03  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (vect_strip_conversions): New function.
        (vect_analyze_offset_expr): Call vect_strip_conversions. Add
        check for binary class. 

2005-01-03  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR debug/17924
        Fix PR debug/19191
        * dwarf2out.c (block_ultimate_origin): Follow decl origin if origin
        is a decl.
        * gimple-low.c (mark_blocks_with_used_vars): New function.
        (mark_blocks_with_used_subblocks): Ditto.
        (mark_used_blocks): Ditto.
        (pass_mark_used_blocks): New pass.
        * tree-inline.c: Include debug.h.
        (expand_call_inline): Call outlining_inline_function here.
        * tree-optimize.c (init_tree_optimization_passes): Add
        pass_mark_used_blocks. 
        * tree-pass.h (pass_mark_used_blocks): New.
        * Makefile.in (tree-inline.o): Add debug.h dependency.

2005-01-03  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.c (darwin_handle_weak_import_attribute): Permit
        VAR_DECLs to have weak_import attribute.

        * config/rs6000/darwin-fallback.c: Use 'ucontext_t' rather than
        'struct ucontext'.

2004-01-03  Steven Bosscher  <stevenb@suse.de>

        * passes.c (rest_of_compilation): Don't run regmove if only
        flag_expensive_optimizations, require flag_regmove instead.

2005-01-03  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/litecoff.h (TARGET_OS_CPP_BUILTINS): Do not
        register "sparc".
        * config/sparc/sysv4-only.h (TARGET_OS_CPP_BUILTINS): Likewise.
        * config/sparc/rtemself.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.
        * config/sparc/sol2-64.h (TARGET_SUB_OS_CPP_BUILTINS): Delete.
        * config/sparc/sp64-elf.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.

2005-01-03  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (TARGET_VECTOR_MODE_SUPPORTED_P): New.
        (ia64_const_ok_for_letter_p): New.
        (ia64_const_double_ok_for_letter_p): New.
        (ia64_extra_constraint): New.
        (ia64_expand_vecint_compare): New.
        (ia64_expand_vcondu_v2si): New.
        (ia64_expand_vecint_cmov): New.
        (ia64_expand_vecint_minmax): New.
        (ia64_print_operand): Add 'v'.
        (ia64_preferred_reload_class): New.
        (ia64_vector_mode_supported_p): New.
        * config/ia64/ia64.h (UNITS_PER_SIMD_WORD): New.
        (PREFERRED_RELOAD_CLASS): Move to function.
        (CONST_OK_FOR_LETTER_P): Move to function.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Move to function.
        (CONSTRAINT_OK_FOR_Q, CONSTRAINT_OK_FOR_R): Remove.
        (CONSTRAINT_OK_FOR_S, CONSTRAINT_OK_FOR_T): Remove.
        (EXTRA_CONSTRAINT): Move to function.
        * config/ia64/ia64.md: Include vect.md.
        (itanium_class): Add mmalua.
        (type): Handle it.
        * config/ia64/itanium1.md (1_mmalua): New.  Add it to bypasses.
        (1b_mmalua): New.
        * config/ia64/itanium2.md (2_mmalua, 2b_mmalua): Similarly.
        * config/ia64/predicates.md (gr_reg_or_0_operand): Accept any
        CONST0_RTX.
        (const_int_2bit_operand): New.
        (fr_reg_or_0_operand): New.
        * config/ia64/ia64-modes.def: Add vector modes.
        * config/ia64/ia64-protos.h: Update.
        * config/ia64/vect.md: New file.

2005-01-03  Richard Henderson  <rth@redhat.com>

        * simplify-rtx.c (simplify_binary_operation): Handle VEC_CONCAT.

2005-01-03  Uros Bizjak  <uros@kss-loka.si>

        PR target/19236
        * config/i386/i386.c (log1psf2): Change mode of operands[0,1]
        to SFmode.
        (log1pdf2): Change mode of operands[0,1] to DFmode.

2005-01-03  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Define to false.
        * config/sparc/linux.h (SPARC_RELAXED_ORDERING): Define to true.
        * config/sparc/linux64.h (SPARC_RELAXED_ORDERING): Likewise.
        * config/sparc/sparc.c (TARGET_RELAXED_ORDERING): Define to
        SPARC_RELAXED_ORDERING.

2005-01-03  Richard Henderson  <rth@redhat.com>
            Uros Bizjak  <uros@kss-loka.si>

        PR target/14631
        * config/i386/i386.c (ix86_expand_builtin): [IX86_BUILTIN_PINSRW,
        IX86_BUILTIN_PINSRW128]: Fix wrong selector range in error message.
        * config/i386/i386.md (mmx_pinsrw, sse2_pinsrw): Fix selector
        handling.
        (*mmx_pinsrw, *sse2_pinsrw): New patterns.
        * config/i386/i386/predicates.md (const_pow2_1_to_8_operand,
        const_pow2_1_to_128_operand): New predicates.

2005-01-02  Greg McGary  <greg@mcgary.org>

        * tree-mudflap.c (mf_varname_tree): decl_printable_name handles
        anonymous decls.
        (mf_xform_derefs_1) [RESULT_DECL, STRING_CST]: Handle as innermost
        object.  [ptr_type]: Remove unused variable.
        Remember nearest addressable array-element or record-component
        when checking bitfield components.  Tolerate empty BIND_EXPR.

2005-01-01  Richard Henderson  <rth@redhat.com>

        * tree-vectorizer.c (vect_analyze_offset_expr): Strip conversions
        that don't narrow the value.  Fail for other conversions.

2005-01-01  Richard Henderson  <rth@redhat.com>

        PR c/19031
        * c-decl.c (pop_file_scope): Call maybe_apply_pending_pragma_weaks.
        * c-lang.c (finish_file): Don't do it here.
        * objc/objc-act.c (objc_finish_file): Likewise.

        * cgraph.c (decl_assembler_name_equal): New.
        (cgraph_node_for_asm, cgraph_varpool_node_for_asm): New.
        (cgraph_varpool_node): Actually link up cgraph_varpool_nodes.
        * cgraph.h (struct cgraph_varpool_node): Add next.
        (cgraph_node_for_asm, cgraph_varpool_node_for_asm): Declare.
        * varasm.c (assemble_alias): Mark the target as needed.

2005-01-01  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/19221
        * function.c (get_arg_pointer_save_area): Use entry_of_function
        instead of get_insns.

2005-01-01  Roger Sayle  <roger@eyesopen.com>
            Andrew Pinski  <pinskia@physics.uc.edu>
            James E. Wilson  <wilson@specifixinc.com>

        PR rtl-optimization/12092
        * loop.c (emit_prefetch_instructions): Do nothing if PREFETCH_BLOCK
        is zero.

2005-01-01  Roger Sayle  <roger@eyesopen.com>
            Olivier Hainque  <hainque@act-europe.fr>

        * tree.c (int_fits_type_p): A narrower type always fits in a
        wider one, except for negative values into unsigned types.

2005-01-01  Roger Sayle  <roger@eyesopen.com>

        * tree.c (int_fits_type_p): Compare the result of force_fit_type
        with the original constant rather than require TREE_OVERFLOW.

2005-01-01  Steven Bosscher  <stevenb@suse.de>

        PR middle-end/17544
        * c-decl.c (finish_function): If compiling C99, annotate the
        compiler generated return with the current file name and line 0.
        * tree-cfg.c (remove_useless_stmts_warn_notreached): Only warn if
        the source line is greater than 0.
        (remove_bb): Likewise.

See ChangeLog.12 for earlier changes.