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PR target/25718
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index cac2479..3a87282 100644 (file)
@@ -1,3 +1,487 @@
+2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
+
+       PR target/25718
+       * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
+       for a negative bound.
+
+2006-01-10  Richard Guenther  <rguenther@suse.de>
+
+       * tree-ssa-structalias.c (get_constraint_for_component_ref):
+       Never override with anything constraint.
+
+2006-01-10  Jan Beulich  <jbeulich@novell.com>
+
+       * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
+       256 bits when optimize_size.
+
+2006-01-10  Jan Beulich  <jbeulich@novell.com>
+
+       * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
+       MASK_ALIGN_DOUBLE.
+       * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
+       * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
+       arguments.
+
+2006-01-10  Ben Elliston  <bje@au.ibm.com>
+
+       * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
+       float modes.
+       * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
+       (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
+       (USE_FP_FOR_ARG): Reject decimal float modes.
+       (function_arg_advance): Likewise.
+       (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
+       (rs6000_handle_altivec_attribute): Do not permit decimal floating
+       point types in AltiVec vectors.
+       (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
+       (rs6000_libcall_value): Likewise.
+
+2006-01-09  Bob Wilson  <bob.wilson@acm.org>
+
+       * config/xtensa/ieee754-df.S: New file.
+       * config/xtensa/ieee754-sf.S: New file.
+       * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
+       (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
+       * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
+
+2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
+
+       * config/sh/predicates.md (binary_float_operator,
+       binary_logical_operator, commutative_float_operator,
+       equality_comparison_operator, greater_comparison_operator,
+       less_comparison_operator, logical_operator,
+       noncommutative_float_operator, shift_operator,
+       symbol_ref_operand, unary_float_operator): Remove redundant
+       conditionals.
+
+2006-01-09  Jeff Law  <law@redhat.com>
+
+       * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
+       code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
+       now unused arguments.  Callers updated.
+       (eliminate_redundant_computations): Remove now unused arguments,
+       callers updated.
+       (local_fold): Remove, no longer used.
+       (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
+       and moved to...
+       * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
+       (simplify_cond): New function.
+       (forward_propagate_into_cond): Call simplify_cond.
+
+2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
+
+       * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
+       (*vec_extractv2di_1_sse): New.
+
+2006-01-09  Ben Elliston  <bje@au.ibm.com>
+
+       * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
+
+2006-01-08  Richard Guenther  <rguenther@suse.de>
+
+       * tree-ssa-structalias.c (get_constraint_for): Remove
+       anyoffset argument.
+       (get_constraint_for_component_ref): Likewise.
+       (do_deref): Likewise.
+       (get_constraint_for): Likewise.
+       (do_structure_copy): Likewise.
+       (handle_ptr_arith): Likewise.
+       (find_func_aliases): Likewise.  Remove unused need_anyoffset
+       variable.
+
+2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
+           Kaz Kojima  <kkojima@gcc.gnu.org>
+
+       * config/sh/sh.h (CONST_OK_FOR_K16): Define.
+       (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
+       (EXTRA_CONSTRAINT_C16): Remove.
+       (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
+       (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
+       EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
+       * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
+       constants of SHmedia.  Handle nested constant expressions of
+       SHmedia correctly.
+       (andcosts): Fix the costs for SHmedia constants.
+       (sh_rtx_costs): Take account of outer_code for SHmedia constants.
+       * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
+       (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
+       (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
+       (movv4hi_i, movv2si_i): Likewise.
+       (movsi_const): Adjust the second operand of ior so to match with
+       the Csu constraint.
+       (movdi_const, movdi_const_32bit): Likewise.
+       (movdi_const_16bit+1): Don't sign-extend LOW.
+       (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
+       step.
+       (*double_shori): Fix the split condition.  Use GEN_INT instead
+       of get_int_mode calls.  Mask lower 16-bit of the argument of
+       the last GEN_INT.
+       (sym2GOTPLT): Remove.
+       (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
+       gen_rtx_UNSPEC.
+       * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
+       instead of EXTRA_CONSTRAINT_C16.
+
+2006-01-07  Ian Lance Taylor  <ian@airs.com>
+           David Edelsohn  <edelsohn@gnu.org>
+
+       PR rtl-optimization/25662
+       * optabs.c (simplify_expand_binop): Use simplify_binary_operation
+       for constant operands instead of simplify_gen_binary.
+       * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
+       after trying simplify_binary_operation
+
+2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
+
+       * tree.c (iterative_hash_expr): Hash decls based on UID.
+
+2006-01-06  Eric Christopher  <echristo@apple.com>
+
+       * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
+       (TARGET_UNWIND_EMIT): Fix spelling.
+       * target.h (gcc_target): Add except_table_label.
+       * except.c (output_function_exception_table): Use.
+       * varasm.c (default_emit_except_table_label): New.
+       * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
+       define.
+       (asm_out): Add here.
+       * output.h (default_emit_except_table_label): Prototype.
+       * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
+       * config/darwin.c (darwin_emit_except_table_label): Define.
+       * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
+
+2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
+
+       PR tree-optimization/18527
+       * tree-ssa-loop-niter.c (number_of_iterations_cond,
+       number_of_iterations_special, number_of_iterations_exit):
+       Move base and step of an iv to a single structure.  Add
+       no_overflow flag, and use it in # of iterations analysis.
+       * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
+       folded_casts argument.
+       (simple_iv): Pass base and step in a structure.  Set no_overflow
+       flag.
+       (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
+       Evaluate expensiveness of computing # of iterations instead of
+       the final expression.
+       * tree-scalar-evolution.h (affine_iv): New structure.
+       (simple_iv): Declaration changed.
+       * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
+       * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
+       find_givs_in_stmt): Changed due to simple_iv change.
+
+2006-01-06  Jeff Law  <law@redhat.com>
+
+       PR ada/24994
+       * tree-cfg.c (bsi_replace): Rename final argument from
+       PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
+       change (stmt -> orig_stmt).
+       * tree-eh.c (verify_eh_throw_stmt_node): New function.
+       (bsi_remove): Add new argument.  Remove EH information
+       if requested.
+       (verify_eh_throw_table_statements): New function.
+       (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
+       updated.
+       * tree-optimize.c (execute_free_cfg_annotations): Verify
+       the EH throw statement table after removing annotations.
+       * except.h (verify_eh_throw_table_statements): Prototype.
+       * tree-flow.h (bsi_remove): Update prototype.
+       * tree-vrp.c (remove_range_assertions): Add new argument to
+       bsi_remove call.
+       * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
+       * tree-complex.c (expand_complex_div_wide): Likewise.
+       * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
+       * tree-tailcall.c (eliminate_tailcall): Likewise.
+       * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
+       * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
+       * tree-nrv.c (tree_nrv): Likewise.
+       * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
+       * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
+       (combine_blocks): Likewise.
+       * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
+       * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
+       (cleanup_control_flow): Likewise.
+       (remove_forwarder_block): Likewise.
+       * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
+       * tree-sra.c (sra_replace): Likewise.
+       * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
+       (forward_propagate_single_use_vars): Likewise.
+       * tree-ssa-dce.c (remove_dead_stmt): Likewise.
+       * tree-inline.c (expand_call_inline): Likewise.
+       * tree-vect-transform.c (vect_transform_loop): Likewise.
+       * tree-outof-ssa.c (rewrite_trees): Likewise.
+       * tree-cfg.c (make_goto_expr_edges): Likewise.
+       (cleanup_dead_labels): Likewise.
+       (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
+       (bsi_move_before, bsi_move_after): Likewise.
+       (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
+       (tree_redirect_edge_and_branch, tree_split_block): Likewise.
+
+2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
+
+       PR tree-opt/25528
+       * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
+       and IMAGPART_EXPR.
+       * tree-flow-inline.h (var_can_have_subvars): Handle complex types
+       on non gimple variables.  Also add checks at the top for decls and
+       mtags.
+       * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
+       complex types.
+       * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
+       and IMAGPART_EXPR for creating MUST_DEFs.
+       (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
+       and NAME_MEMORY_TAG separately from the DECLs.
+
+2006-01-06  Richard Guenther  <rguenther@suse.de>
+
+       * tree-dfa.c (mark_new_vars_to_rename): Create stmt
+       annotation, if necessary.
+       * tree-ssa-pre.c (create_expression_by_pieces): Remove
+       redundant calls to update_stmt.
+       * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
+       Likewise.
+
+2006-01-05  Richard Henderson  <rth@redhat.com>
+
+       * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
+
+2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
+
+       * c-typeck.c: Update copyright date.
+
+2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
+
+       * c-typeck.c (build_c_cast): Always warn when casting
+       from a pointer to an integer of different size, even if
+       the node was constant.
+
+2006-01-05  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/22555
+       * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
+       if one structure field is an array.
+       * tree-ssa-operands.c (get_expr_operands): Continue scanning
+       operands even if we found a subvar, but ignore VOPs in this
+       case.
+       * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
+       for renaming.
+       * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
+
+2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
+
+       PR middle-end/24998
+       * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
+
+2006-01-05  Richard Guenther  <rguenther@suse.de>
+           Diego Novillo  <dnovillo@redhat.com>
+
+       * tree-pass.h (TODO_remove_unused_locals): Define.
+       * gimple-low.c (expand_var_p, remove_useless_vars,
+       pass_remove_useless_vars): Remove.  Update all users.
+       * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
+       (remove_unused_locals): New function.
+       * tree-flow.h (remove_unused_locals): Declare.
+       * passes.c (execute_todo): Call remove_unused_locals if
+       TODO_remove_unused_locals is set.
+       * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
+       * tree-ssa-dce.c (pass_dce): Likewise.
+       * tree-outof-ssa.c (pass_del_ssa): Likewise.
+
+2006-01-05  Richard Guenther  <rguenther@suse.de>
+
+       * tree-flow.h (struct fieldoff): Decompose field to
+       type, size and decl.
+       * tree-ssa-alias.c (create_sft): Take type as parameter.
+       (create_overlap_variables_for): Store type, size and decl
+       in the fieldoff structure.
+       * tree-ssa-structalias.c (fieldoff_compare): Adjust users
+       of struct fieldoff.
+       (push_fields_onto_fieldstack): Likewise.
+       (create_variable_info_for): Likewise.  Use offset for the
+       SFT name if the decl is not available.
+
+2006-01-04  Paul Brook  <paul@codesourcery.com>
+
+       * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
+
+2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
+
+       * lambda-code.c (can_put_in_inner_loop): Relax
+       restrictions.
+       (can_put_after_inner_loop): New function.
+       (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
+       (perfect_nestify): Change to make copies and modify uses.
+
+2006-01-04  Richard Henderson  <rth@redhat.com>
+
+       Merge from gomp branch:
+       * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
+       via integer constant.
+       (pragma_lex): Remove.
+       * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
+       rather than parsing it.
+       * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
+       handle_pragma_extern_prefix): Add %< %> quotes.
+       (registered_pragmas): New.
+       (c_register_pragma_1): New.
+       (c_register_pragma): Use it.
+       (c_register_pragma_with_expansion): Likewise.
+       (c_invoke_pragma_handler): New.
+       (init_pragma): Use cpp_register_deferred_pragma directly for
+       pch_preprocess.
+       * c-pragma.h (enum pragma_kind): New.
+       (pragma_handler): New.
+       (c_invoke_pragma_handler): Declare.
+       * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
+       CPP_PRAGMA_EOL.
+       * c-common.h (c_common_pch_pragma): Update decl.
+       * Makefile.in (c-parser.o): Update dependencies.
+       (GTFILES): Add c-pragma.h.
+       * c-parser.c (struct c_token): Add pragma_kind.
+       (struct c_parser): Add in_pragma.
+       (c_lex_one_token): Always initialize keyword and pragma_kind.
+       Extract data for CPP_PRAGMA.
+       (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
+       (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
+       Don't allow CPP_PRAGMA_EOL if in_pragma.
+       (c_parser_consume_pragma): New.
+       (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
+       (c_parser_skip_to_end_of_parameter): Likewise.
+       (c_parser_skip_to_end_of_block_or_statement): Likewise.
+       (c_parser_skip_to_pragma_eol): New.
+       (c_parser_external_declaration): Handle CPP_PRAGMA.
+       (c_parser_compound_statement_nostart): Likewise.
+       (c_parser_statement_after_labels): Likewise.
+       (c_parser_pragma): New.
+       (pragma_lex): Likewise.
+       (c_parser_pragma_pch_preprocess): New.
+       (c_parser_new): Merge into ...
+       (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
+
+2006-01-04  Jeff Law  <law@redhat.com>
+
+       PR ada/24994
+       * tree-cfg.c (bsi_replace): Remove the original statement
+       from the EH throw statement table.
+
+2006-01-04  Jakub Jelinek  <jakub@redhat.com>
+
+       * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
+       make the prototype extern "C" and add throw ().
+
+       PR target/25554
+       * config/i386/i386.md (testqi_ext_3): Ensure len is positive
+       and pos non-negative and pos + len <= 32.
+       (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
+       drop pos + len < HOST_BITS_PER_WIDE_INT test.
+       (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
+
+       PR c/25559
+       * c-common.c (handle_vector_size_attribute): Reject zero vector size
+       as well as sizes not multiple of component size.
+
+       PR debug/25562
+       * function.c (instantiate_expr): New function.
+       (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
+       walk its DECL_VALUE_EXPR with instantiate_expr.
+
+       * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
+       DW_OP_deref{,_size} if address isn't going to be added.
+
+2006-01-04  Ben Elliston  <bje@au.ibm.com>
+
+       * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
+       * config/fp-bit.c: Likewise.
+
+2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
+
+       * dominance.c: Add comment about why we use DFS numbering
+       of dominance tree.
+
+2006-01-03  Jakub Jelinek  <jakub@redhat.com>
+           Richard Henderson  <rth@redhat.com>
+
+       Merge from gomp-branch:
+        * varasm.c (assemble_variable): Handle thread-local COMMON data.
+        * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
+
+2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
+
+       PR rtl-optimization/25578
+       * combine.c (combine_simplify_rtx, force_to_mode): Don't
+       pass a parameter to simplify_shift_const if changing ASHIFTRT
+       to LSHIFTRT.
+
+2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
+
+       * gcc/builtins.c (get_builtin_sync_mem): New function.
+       (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
+       expand_builtin_lock_test_and_set, expand_builtin_lock_release):
+       Call get_builtin_sync_mem to generate mem rtx.
+
+2006-01-03  Richard Guenther  <rguenther@suse.de>
+
+       PR c/25183
+       * stmt.c (add_case_node): Make sure to clear overflow flags
+       from ranges.
+
+2006-01-03  Jakub Jelinek  <jakub@redhat.com>
+
+       Merge from gomp-branch.
+       * config/sparc/sync.md: New file.
+       * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
+       UNSPECV_LDSTUB): New constants.
+       * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
+       * config/sparc/predicates.md (memory_reg_operand): New predicate.
+       * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
+       prototype.
+
+2006-01-03  Roger Sayle  <roger@eyesopen.com>
+
+       * combine.c (reg_subword_p): New predicate to test whether the
+       destination of a set refers to a subword/piece of a register.
+       (try_combine): Generalize the code to merge the setting of a
+       pseudo to a constant followed by a set of a subword of that
+       register to a constant.
+
+2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
+
+       * basic-block.h (control_flow_graph): Change the type of
+       x_label_to_block_map to VEC(basic_block,gc) *.
+       * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
+       set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
+
+       * tree-ssa-propagate.c (cfg_blocks): Change the type to
+       VEC(basic_block,heap) *.
+       (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
+       ssa_prop_fini): Adjust the uses of cfg_blocks.
+
+2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
+
+       * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
+       COMPONENT_REFs.
+       * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
+       hashing trees instead of a pointer hash.
+       (mem_attrs_htab_eq): Do a deep compare instead of a pointer
+       compare for MEM_EXPR.
+
+       PR rtl-optimization/25130
+       * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
+       when comparing MEMs for GCSE
+
+2006-01-03  Ben Elliston  <bje@au.ibm.com>
+
+       * targhooks.h (default_decimal_float_supported_p): Declare.
+       * targhooks.c (default_decimal_float_supported_p): Define.
+       * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
+       `default_decimal_float_supported_p'.
+       * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
+
+2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
+
+       * combine.c (apply_distributive_law <SUBREG>): Check
+       TRULY_NOOP_TRUNCATION.
+
 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
 
        * dwarf2out.c (have_switched_text_section): Delete.
        * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
        (sync_compare_and_swapqhi_internal): New.
        * config/rs6000/rs6000-protos.h: Declare.
-