ChangeLog:
PR lto/42776
* configure.ac (--enable-lto): Refactor handling so libelf tests
are only performed inside then-clause of ACX_ELF_TARGET_IFELSE,
and allow LTO to be explicitly enabled on non-ELF platforms that
are known to support it inside else-clause.
* configure: Regenerate.
gcc/ChangeLog:
PR lto/42776
* configure.ac (gcc_cv_as_section_has_align): Set if installed
binutils supports extended .section directive needed by LTO, or
warn if older binutils found.
(LTO_BINARY_READER): New AC_SUBST'd variable.
(LTO_USE_LIBELF): Likewise.
* gcc/config.gcc (lto_binary_reader): New target-specific configure
variable.
* gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
(LTO_USE_LIBELF): Likewise.
* configure: Regenerate.
* collect2.c (is_elf): Rename from this ...
(is_elf_or_coff): ... to this, and recognize and allow i386 COFF
object files in addition to ELF-formatted ones.
(scan_prog_file): Caller updated. Also allow for LTO info marker
symbol to be prefixed or not by an extra underscore.
* config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
* config/i386/winnt.c: Also #include lto-streamer.h
(i386_pe_asm_named_section): Specify 1-byte section alignment for
LTO named sections.
(i386_pe_asm_output_aligned_decl_common): Add comment.
(i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.
gcc/lto/ChangeLog:
PR lto/42776
* Make-lang.in (LTO_OBJS): Use LTO_BINARY_READER instead of
hardcoding 'lto-elf.o'.
($(LTO_EXE)): Use LTO_USE_LIBELF instead of hardcoding '-lelf'.
* lto-coff.h: New file.
* lto-coff.c: Likewise.
gcc/testsuite/ChangeLog:
PR lto/42776
* lib/lto.exp (lto_prune_vis_warns): New function.
(lto-link-and-maybe-run): Call it.
From-SVN: r158762
* lto.c (globalize_cross_file_statics): When function has address taken,
it needs to be public.
* varpool.c (decide_is_variable_needed): Variable is always needed
during ltrans.
From-SVN: r158609
* cgraph.c (cgraph_remove_node): Kill bodies in other partitoin.
(dump_cgraph_node): Dump new flags.
* cgraph.h (struct cgraph_node): Add flags reachable_from_other_partition
and in_other_partition.
(cgraph_can_remove_if_no_direct_calls_p): Functions used by other partition
can not be removed.
* cgraphunit.c (cgraph_mark_functions_to_output): Functions used by the other
partition must be output; silence sanity checking on leaking functions
bodies from other paritition.
* lto-cgraph.c (reachable_from_other_partition_p): New function.
(lto_output_node): Output new flags; do not sanity check that inline
clones are output; drop lto_forced_extern_inline_p code; do not mock
visibility flags at partition boundaries.
(add_node_to): New function.
(output_cgraph): Use it to sort functions so masters appear before
clones.
(input_overwrite_node): Input new flags.
* passes.c (ipa_write_summaries): Do not call
lto_new_extern_inline_states.
* lto-section-out.c (forced_extern_inline, lto_new_extern_inline_states,
lto_delete_extern_inline_states, lto_force_functions_extern_inline,
lto_forced_extern_inline_p): Kill.
* lto-streamer.h (lto_new_extern_inline_states,
* lto_delete_extern_inline_states, lto_force_functions_extern_inline,
lto_forced_extern_inline_p): Kill.
* lto.c (lto_add_inline_clones): Do not track inlined_decls.
(lto_add_all_inlinees): Likewise.
(lto_wpa_write_files): Likewise.
From-SVN: r158563
2010-04-18 Eric Botcazou <ebotcazou@adacore.com>
* fold-const.c (fold_comparison): Use ssizetype.
* gimple-fold.c (maybe_fold_offset_to_array_ref): Likewise.
* ipa-prop.c (ipa_modify_call_arguments): Use sizetype.
* tree-loop-distribution.c (build_size_arg_loc): Likewise.
* tree-object-size.c (compute_object_sizes): Use size_type_node.
* tree.h (initialize_sizetypes): Remove parameter.
(build_common_tree_nodes): Remove second parameter.
* stor-layout.c (initialize_sizetypes): Remove parameter.
Always create an unsigned type.
(set_sizetype): Assert that the passed type is unsigned and simplify.
* tree.c (build_common_tree_nodes): Remove second parameter.
Adjust call to initialize_sizetypes.
* c-decl.c (c_init_decl_processing): Remove second argument in call to
build_common_tree_nodes.
cp/
* decl.c (cxx_init_decl_processing): Remove second argument in call to
build_common_tree_nodes.
java/
* decl.c (java_init_decl_processing): Remove argument in call to
initialize_sizetypes
fortran/
* f95-lang.c (gfc_init_decl_processing): Remove second argument in call
to build_common_tree_nodes.
ada/
* gcc-interface/misc.c (gnat_init): Remove second argument in call to
build_common_tree_nodes.
lto/
* lto-lang.c (lto_init): Remove second argument in call to
build_common_tree_nodes.
From-SVN: r158496
2010-01-08 Richard Guenther <rguenther@suse.de>
PR lto/42528
* c.opt (fsigned-char): Also let LTO handle this option.
(funsigned-char): Likewise.
lto/
* lto-lang.c (lto_handle_option): Handle -f[un]signed-char.
(lto_init): Do not init char_type_node in a standard way
but according to flag_signed_char.
* gcc.dg/lto/20100103-1_0.c: New testcase.
* gcc.dg/lto/20100103-2_0.c: Likewise.
From-SVN: r155740
2010-01-02 H.J. Lu <hongjiu.lu@intel.com>
PR lto/42580
* lto-elf.c (lto_elf_file_open): Stop if the command line
option file is missing.
From-SVN: r155575
2009-12-15 Richard Guenther <rguenther@suse.de>
* tree.c (free_lang_data_in_binfo): Do not free BINFO_OFFSET
and BINFO_VPTR_FIELD.
(free_lang_data_in_type): Do not free TYPE_STUB_DECL if we
generate debug information.
(free_lang_data_in_decl): Do not free DECL_SIZE_UNIT,
DECL_SIZE, DECL_FIELD_OFFSET and DECL_FCONTEXT.
(free_lang_data): Do not disable debuginfo.
* lto-streamer-out.c (write_symbol_vec): Deal with
non-constant DECL_SIZE.
(pack_ts_base_value_fields): Write types with false
TREE_ASM_WRITTEN.
(lto_output_ts_type_tree_pointers): Stream TYPE_STUB_DECL.
* lto-streamer-in.c (lto_input_ts_type_tree_pointers): Stream
TYPE_STUB_DECL.
* dwarf2out.c (add_pure_or_virtual_attribute): Check for
DECL_CONTEXT.
(gen_type_die_for_member): Test for TYPE_STUB_DECL.
* opts.c (decode_options): Do not disable var-tracking for lto.
* doc/invoke.texi (-flto): Document -flto vs. -g experimental
status.
(-fwhopr): Document experimental status.
lto/
* lto.c (lto_fixup_field_decl): Fixup DECL_FIELD_OFFSET.
(lto_post_options): Do not disable debuginfo.
From-SVN: r155259
2009-12-11 Richard Guenther <rguenther@suse.de>
PR lto/41915
* lto-lang.c (lto_init_options): Initialize flag_complex_method
to the C99 default. Do not set flag_unit_at_a_time.
From-SVN: r155164
2009-11-12 Rafael Avila de Espindola <espindola@google.com>
* lto-plugin.c (write_resolution): Assume resolution_file is set.
Print the symbol name.
(all_symbols_read_handler): Create a resolution file.
Pass it to gcc.
(cleanup_handler): Remove the resolution file.
(process_option): Drop the -resolution option.
2009-11-12 Rafael Avila de Espindola <espindola@google.com>
* lang.opt (fresolution): Renamed from resolution.
* lto-lang.c (lto_handle_option): Handle new option name.
* lto.c (lto_resolution_read): Add more checks. Discard rest of line.
From-SVN: r154118
2009-11-04 Richard Guenther <rguenther@suse.de>
Rafael Avila de Espindola <espindola@google.com>
* gcc.c (process_command): Handle arguments name@offset.
2009-11-04 Richard Guenther <rguenther@suse.de>
Rafael Avila de Espindola <espindola@google.com>
* lto-elf.c (lto_elf_build_section_table): Add the base offset.
(lto_elf_file_open): Handle offsets in arguments name@offest.
2009-11-04 Richard Guenther <rguenther@suse.de>
Rafael Avila de Espindola <espindola@google.com>
* lto-plugin.c (plugin_file_info): Remove temp field.
(cleanup_handler): Don't delete temporary objects.
(claim_file_handler): Don't create temporary objects.
Co-Authored-By: Rafael Avila de Espindola <espindola@google.com>
From-SVN: r153903
2009-10-30 Richard Guenther <rguenther@suse.de>
PR lto/41858
* lto-streamer.h (struct lto_file_decl_data): Remove fd member.
lto/
* lto.c (lto_file_read): Do not set file_data->fd.
(lto_read_section_data): Use a single-entry file-descriptor cache.
Do not check the result of xmalloc.
(free_section_data): Do not use file_data->fd.
(lto_read_all_file_options): Likewise.
From-SVN: r153758
2009-10-22 Richard Guenther <rguenther@suse.de>
* lto-streamer.h (lto_symtab_merge_cgraph_nodes): Declare.
* lto-symtab.c (struct lto_symtab_entry_def): Add node member.
(lto_symtab_merge): Do not merge cgraph nodes here.
(lto_symtab_resolve_can_prevail_p): Simplify.
(lto_symtab_resolve_symbols): Store cgraph node.
(lto_symtab_merge_decls_1): Simplify. Do not drop non-prevailing
functions from the symtab.
(lto_symtab_merge_cgraph_nodes_1): New function.
(lto_symtab_merge_cgraph_nodes): Likewise.
lto/
* lto.c (lto_fixup_jump_functions): Remove.
(lto_fixup_decls): Do not fixup jump functions.
(read_cgraph_and_symbols): Schedule cgraph merging after
summary reading. Schedule type and decl fixup before
summary reading.
From-SVN: r153460
* ipa-cp.c (ipcp_write_summary, ipcp_read_summary): New functions.
(pass_ipa_cp): Register them.
(ipcp_init_stage): Analyze all functions for whopr/lto.
(ipcp_propagate_stage): Skip external calls.
(ipcp_iterate_stage): Call ipa_update_after_lto_read if needed.
* ipa-reference.c (write_node_summary_p): Fix thinko about availability.
* cgraphunit.c (ipa_passes): When in lto, ne er produce new summaries;
when in ltrans, skip executing of ipa passes since everything should've
been done.
* ipa-inline.c (cgraph_decide_inlining): Remove FIXMEs.
(inline_generate_summary): Likewise.
(inline_read_summary): New function.
(inline_write_summary): New function.
(pass_ipa_inline): Register new hooks.
* ipa-prop.c: Inlcude lto-streamer.h
(ipa_edge_args_vector): Update declaration.
(ipa_count_arguments, ipa_compute_jump_functions,
ipa_free_edge_args_substructures): Move ipa_edge_args_vector into ggc.
(ipa_write_jump_function, ipa_read_jump_function, ipa_write_node_info,
ipa_read_node_info): New static functions.
(ipa_prop_write_jump_functions, ipa_prop_read_jump_functions): Update.
(duplicate_array): Use xmalloc.
(duplicate_ggc_array): New.
(ipa_edge_duplication_hook): Use it.
(ipa_update_after_lto_read): New function.
* ipa-prop.h (ipa_prop_write_jump_functions,
ipa_prop_read_jump_functions): Declare.
(ipa_pass_through_data, ipa_ancestor_jf_data, ipa_member_ptr_cst,
jump_func_value, ipa_member_ptr_cst, ipa_edge_args): Add GTY markers.
(ipa_edge_args_vector): Move into GGC.
(ipa_check_create_edge_args): Update.
(ipa_update_after_lto_read): New.
* passes.c (ipa_write_summaries_1): When in wpa, do not write summaries.
(ipa_read_summaries): When in ltrans, so not read summaries.
* lto-streamer.c (lto_get_section_name): Add LTO_section_jump_functions.
* lto-streamer.h (LTO_section_jump_functions): New section.
(produce_asm): Declare.
* lto-cgraph.c (output_cgraph): Output edges in reverse order.
* lto-streamer-out.c (produce_asm): Export.
* lto-streamer-in.c: Include tree-pass.h
(input_function): Free dominance info when done.
(lto_read_body): Push ipa_inline in ltrans stage.
* gengtype.c (open_base_files): Add ipa-prop.h into includes.
* Makefile.in (GTFILES): Add ipa-prop.h
* lto.c (lto_fixup_jump_functions): New function.
(lto_fixup_decls): Use it.
From-SVN: r153449
2009-10-14 Richard Guenther <rguenther@suse.de>
* lto-symtab.c (lto_symtab_compatible): Fold in ...
(lto_symtab_merge): ... here. Rewrite both to take the
prevailing and a to-be-merged entry and to queue diagnostics
properly.
(lto_symtab_resolve_replaceable_p): New predicate for
symbol resolution.
(lto_symtab_resolve_can_prevail_p): Likewise.
(lto_symtab_resolve_symbols): Rewrite. Fold in code that
handles merging commons by choosing the largest decl. Fold
in code that gives ODR errors.
(lto_symtab_merge_decls_2): Simplify a lot. Emit queued
diagnostics here.
(lto_symtab_merge_decls_1): Re-structure. Deal with the
case of no prevailing decl here. Diagnose mismatches
in object types here. Drop all but the prevailing decls.
(lto_symtab_prevailing_decl): Return the single prevailing decl.
* lto-streamer-in.c (lto_input_tree_ref): Deal with
VIEW_CONVERT_EXPRs in decl slots. Unshare the tree in this case.
lto/
* lto.c (lto_fixup_tree): In case the prevailing decl is not
compatible with the one we replace wrap it around a
VIEW_CONVERT_EXPR.
From-SVN: r152768
2009-10-09 Richard Guenther <rguenther@suse.de>
PR driver/41637
* lto-wrapper.c (ltrans_output_file, flto_out, args_name): New
globals.
(lto_wrapper_exit): New function.
(fatal): Use it.
(fatal_perror): Likewise.
(fork_execute): Use global args_name, do not free it.
(run_gcc): Use global ltrans_output_file, flto_out, do not free them.
* lto-streamer.h: Remove duplicate prototypes.
PR lto/41635
PR lto/41636
lto/
* lto.c (read_cgraph_and_symbols): Do not assert we can open
a file.
* lto-elf.c (init_shdr##BITS): Fix i18n problems.
(init_ehdr##BITS): Likewise.
From-SVN: r152588
* lto-symtab.c (lto_cgraph_replace_node): Assert that inline clones has
no address taken.
* cgraph.c (cgraph_mark_needed_node): Assert that inline clones are
never needed.
(cgraph_clone_node): Clear externally_visible flag for clones.
* cgraph.h (cgraph_only_called_directly_p,
cgraph_can_remove_if_no_direct_calls_p): New predicates.
* tree-pass.h (pass_ipa_whole_program_visibility): Declare.
* ipa-cp.c (ipcp_cloning_candidate_p): Use new predicate.
(ipcp_initialize_node_lattices, ipcp_estimate_growth,
ipcp_insert_stage): Likwise.
* cgraphunit.c (cgraph_decide_is_function_needed): Do not compute
externally_visible flag.
(verify_cgraph_node): Verify that inline clones look right.
(process_function_and_variable_attributes): Do not set
externally_visible flags.
(ipa_passes): Avoid executing small_ipa_passes at LTO stage; they've
been already run.
* lto-cgraph.c (lto_output_node): Assert that inline clones are not
boundaries.
* ipa-inline.c (cgraph_clone_inlined_nodes): Use new predicates;
clear externally_visible when turning into inline clones
(cgraph_mark_inline_edge): Use new predicates.
(cgraph_estimate_growth): Likewise.
(cgraph_decide_inlining): Likewise.
* ipa.c (cgraph_postorder): Likewise.
(cgraph_remove_unreachable_nodes): Likewise; sanity check
that inline clones are not needed.
(cgraph_externally_visible_p): New predicate.
(function_and_variable_visibility): Add whole_program parameter;
always set externally_visible flag; handle COMDAT function
privatization.
(local_function_and_variable_visibility): New function.
(gate_whole_program_function_and_variable_visibility): New function.
(whole_program_function_and_variable_visibility): New function.
(pass_ipa_whole_program_visibility): New function.
* passes.c (init_optimization_passes): Add whole program visibility
pass.
(do_per_function_toporder, function_called_by_processed_nodes_p): Do
not care about needed/reachable flags.
* varpool.c: Include flags.h
(decide_is_variable_needed): When doing LTO assume whole-program mode.
(varpool_finalize_decl): When we are in LTO read-back, all variables
are analyzed.
(varpool_analyze_pending_decls): Skip analyzis of analyzed vars.
* lto/lto.c (read_cgraph_and_symbols): Mark functions neccesary only at
ltrans stage; explain why this is needed and should not.
From-SVN: r152520
Dave Korn
Richard Guenther
Jan Hubicka
Eric Botcazou
Rainer Orth
Eric Botcazou
Andy Hutchinson
H.J. Lu
Dmitry Gorbachev
Jakub Jelinek
Rafael Avila de Espindola
Richard Biener
Joseph Myers
Diego Novillo