dwarf2out.c (output_comdat_type_unit): Check for OBJECT_FORMAT_ELF.

2012-11-06  Sterling Augustine <saugustine@google.com>

* dwarf2out.c (output_comdat_type_unit): Check for OBJECT_FORMAT_ELF.

Co-Authored-By: Cary Coutant <ccoutant@google.com>
From-SVN: r193279

re PR libstdc++/51850 (debug mode for std::array and tr1::array)

2012-11-06  Paolo Carlini  <paolo.carlini@oracle.com>

PR libstdc++/51850
* include/debug/array: New, debug-mode implementation.
* include/profile/array: New.
* include/std/array: Adjust.
* include/std/tuple: Just include <array>.
* include/Makefile.am: Add.
* include/Makefile.in: Regenerate.
* testsuite/23_containers/array/debug/front1_neg.cc: New.
* testsuite/23_containers/array/debug/
square_brackets_operator1_neg.cc: Likewise.
* testsuite/23_containers/array/debug/front2_neg.cc: Likewise.
* testsuite/23_containers/array/debug/
square_brackets_operator2_neg.cc: Likewise.
* testsuite/23_containers/array/debug/back1_neg.cc: Likewise.
* testsuite/23_containers/array/debug/back2_neg.cc: Likewise.
* testsuite/23_containers/array/tuple_interface/get_neg.cc: Tweak
to run only in normal-mode.
* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
Likewise.
* testsuite/23_containers/array/tuple_interface/get_debug_neg.cc: New.
* testsuite/23_containers/array/tuple_interface/
tuple_element_debug_neg.cc: Likewise.

From-SVN: r193278

Add a contrib script for comparing the performance of two sets of
compiler runs.

Usage documentation is in the script.

The script produces output of the form:

$ compare_two_ftime_report_sets "Log0/*perf" "Log3/*perf"

Arithmetic sample for timevar log files
"Log0/*perf"
and selecting lines containing "TOTAL" with desired confidence 95 is
trial count is 4, mean is 443.022 (95% confidence in 440.234 to 445.811),
std.deviation is 1.75264, std.error is 0.876322

Arithmetic sample for timevar log files
"Log3/*perf"
and selecting lines containing "TOTAL" with desired confidence 95 is
trial count is 4, mean is 441.302 (95% confidence in 436.671 to 445.934),
std.deviation is 2.91098, std.error is 1.45549

The first sample appears to be 0.39% larger,
with 60% confidence of being larger.
To reach 95% confidence, you need roughly 14 trials,
assuming the standard deviation is stable, which is iffy.

Tested on x86_64 builds.

Index: contrib/ChangeLog

2012-11-05  Lawrence Crowl  <crowl@google.com>

* compare_two_ftime_report_sets: New.

From-SVN: r193277

vect-fmaxv-fminv-compile.c: Add -fno-vect-cost-model.

2012-11-06  Andrew Pinski  <apinski@cavium.com>

* gcc.target/aarch64/vect-fmaxv-fminv-compile.c: Add -fno-vect-cost-model.

From-SVN: r193276

Daily bump.

From-SVN: r193275

tm: Add uninstrumented code path

Co-Authored-By: Richard Henderson <rth@redhat.com>
From-SVN: r193271

* cfghooks.c (copy_bbs): Handle a null loop_father.

From-SVN: r193270

Handle null current_function_decl in cgraph_debug_gimple_stmt

        * cfghooks.c (cgraph_debug_gimple_stmt): Handle a null
        current_function_decl.

From-SVN: r193269

Prevent "illegal" block sharing within transactions.

        * tree-ssa-tail-merge.c (find_duplicate): Do not consider
        is_tm_ending_fndecl calls as mergable.

From-SVN: r193268

common.opt (gno-split-dwarf, [...]): New switches.

gcc/ChangeLog

2012-11-06  Sterling Augustine <saugustine@google.com>
            Cary Coutant <ccoutant@google.com>

* common.opt (gno-split-dwarf, gsplit-dwarf): New switches.
* doc/invoke.texi (Debugging Options): Document them.
* gcc.c (replace_extension_spec_func):  New function.
(ASM_FINAL_SPEC): Adjust.
(static_spec_functions): Add new field for replace-extension.
(check_live_switch): Adjust comment.  Add case for 'g'.
* opts.c (finish_options): Set x_debug_generate_pub_sections based on
x_dwarf_split_debug_info.
(common_handle_option): Add case for OPT_gsplit_dwarf.
* dwarf2out.h (addr_table_entry_struct): Add forward declaration.
(dw_val_struct): Add val_entry pointer.
* dwarf2out.c: (debug_skeleton_info_section,
debug_skeleton_abbrev_section, debug_addr_section,
debug_skeleton_line_section, debug_str_offsets_section): New globals.
(NOT_INDEXED, NO_INDEX_ASSIGNED): New defines.
(indirect_string_node): New field index.
(ate_kind): New enum with fields ate_kind_rtc, ate_kind_rtx_dtprel,
ate_kind_label.
(addr_table_entry): New structure and type.
(dw_loc_list_struct): Add field begin_entry.
(new_loc_desc): Initialize val_entry.
(size_of_loc_descr, output_loc_operands, output_loc_operands_raw):
Add cases for DW_OP_GNU_addr_index and DW_OP_const_index.
(build_cfa_loc): Initialize val_entry.
(AT_index, add_addr_table_entry, remove_addr_table_entry,
add_AT_lbl_id): New functions.
(add_AT_addr, add_AT_range_list): New parameter force_direct.
(output_die_abbrevs): New function.
(add_ranges_by_labels): New parameter force_direct.
(output_line_info): New parameter prologue_only.
(dtprel_bool): New enum with dtprel_false and dtprel_true.
(dw_addr_op, new_addr_loc_descr): New functions.
(DEBUG_DWO_INFO_SECTION, DEBUG_DWO_ABBREV_SECTION,
DEBUG_ADDR_SECTION, DEBUG_NORM_MACINFO_SECTION,
DEBUG_DWO_MACINFO_SECTION, DEBUG_MACINFO_SECTION,
DEBUG_NORM_MACRO_SECTION, DEBUG_DWO_MACRO_SECTION,
DEBUG_MACRO_SECTION, DEBUG_DWO_LINE_SECTION,
DEBUG_DWO_LOC_SECTION, DEBUG_NORM_STR_OFFSETS_SECTION,
DEBUG_DWO_STR_OFFSETS_SECTION, DEBUG_STR_OFFSETS_SECTION,
DEBUG_DWO_STR_SECTION, DEBUG_NORM_STR_SECTION, DEBUG_STR_SECTION,
DEBUG_MACRO_SECTION_FLAGS, DEBUG_SKELETON_LINE_SECTION_LABEL,
DEBUG_SKELETON_INFO_SECTION_LABEL, DEBUG_ADDR_SECTION_LABEL
DEBUG_SKELETON_ABBREV_SECTION_LABEL): New macros.
(DEBUG_STR_SECTION_FLAGS): Adjust.
(TEXT_SECTION_LABEL, COLD_TEXT_SECTION_LABEL,
DEBUG_LINE_SECTION_LABEL, DEBUG_INFO_SECTION_LABEL,
DEBUG_ABBREV_SECTION_LABEL, DEBUG_ADDR_SECTION_LABEL,
DEBUG_LOC_SECTION_LABEL, DEBUG_RANGES_SECTION_LABEL,
DEBUG_MACINFO_SECTION_LABEL, DEBUG_MACRO_SECTION_LABEL): Adjust
indentation.
(debug_skeleton_abbrev_section_label, debug_addr_section_label,
debug_skeleton_line_section_label, debug_skeleton_info_section_label):
New global variables.
(add_AT_flag, add_AT_int, add_AT_unsigned, add_AT_double, add_AT_vec,
add_AT_data8): Initialize val_entry.
(add_AT_low_high_pc): New parameter force_direct. Handle
dwarf_split_debug_info.
(set_indirect_string, find_AT_string_form): New functions.
(AT_string_form): Adjust to call find_AT_string_from.
(add_AT_die_ref, add_AT_fde_ref, add_AT_loc, add_AT_list):
Initialize val_entry.
(addr_index_table): New global variable.
(addr_table_entry_do_hash, addr_table_entry_eq, add_addr_table_entry,
init_addr_table_entry, remove_addr_table_entry, index_addr_table_entry,
remove_loc_list_addr_table_entries): New functions.
(add_AT_addr, add_AT_lbl_id, add_AT_range_list): New parameter
force_direct.  Handle dwarf_split_debug_info.
(add_AT_file, add_AT_vms_delta, add_AT_lineptr, add_AT_macptr,
add_AT_offset): Initialize val_entry.
(UNRELOCATED_OFFSET, RELOCATED_OFFSET): New defines.
(size_of_die): Handle dwarf_split_debug_info.
(size_of_aranges, value_format): Call AT_class.  Check AT_index.
(output_die_abbrevs): New function.
(output_abbrev_section): Call output_die_abbrevs.
(new_loc_list): Initialize begin_entry.
(output_loc_list): Handle dwarf_split_debug_info.
(output_range_list_offset, output_loc_list_offset,
output_attr_index_or_value, ): New functions.
(output_die): Fix call to dw2_asm_output_data.  Call
output_attr_index_or_value and output_range_list_offset.
Adjust logic around dw_val_class_str.
(add_top_lebel_skeleton_die_attrs, get_skeleton_type_unit,
output_skeleton_debug_sections): New functions.
(output_comdat_type_unit, output_pubname, output_aranges): Handle
dwarf_split_debug_info.
(add_ranges_by_labels): New parameter force_direct.
(mem_loc_descriptor, loc_descr): Call new_addr_loc_descr.
(loc_list_from_tree, add_const_value_attribtue): Use dtprel_bools in
place of generic integer.
(dwarf2out_vms_debug_main_pointer, gen_entry_point_die, gen_label_die,
gen_call_site_die, gen_subprogram_die, gen_variable_die,
add_high_low_attributes): Adjust calls to add_AT_lbl_id.
(output_macinfo_op): Adjust indirect_string_logic.
(save_macinfo_strings): New function.
(output_macinfo): Adjust.
(dwarf2out_init): Handle dwarf_split_debug_info.
(index_string, output_index_string_offset, output_index_string): New
functions.
(output_indirect_string): Adjust.
(output_indirect_strings, output_addr_table_entry, output_addr_table):
New functions.
(resolve_addr_in_expr, hash_loc_operands): Handle DW_OP_GNU_addr_index
and DW_OP_GNU_const_index.  Handle dwarf_split_debug_info.  Call
remove_loc_list_addr_table_entries and remove_addr_table_entry.
(index_location_lists): New function.
(dwarf2out_finish): Handle dwarf_split_debug_info.  New variable
main_comp_unit_die.  Adjust calls to add_AT_low_high_pc,
add_ranges_by_labels, add_AT_addr, and add_AT_lineptr. Call
save_macinfo_strings and output_indirect_strings.

include/ChangeLog

2012-10-29  Sterling Augustine <saugustine@google.com>
            Cary Coutant <ccoutant@google.com>

* dwarf2.h (dwarf_location_list_entry_type): New enum with fields
DW_LLE_GNU_end_of_list_entry, DW_LLE_GNU_base_address_selection_entry,
DW_LLE_GNU_start_end_entry and DW_LLE_GNU_start_length_entry.

Co-Authored-By: Cary Coutant <ccoutant@google.com>
From-SVN: r193267

generic-morestack.c (__generic_morestack): Align the returned stack pointer to a 32 byte boundary.

* generic-morestack.c (__generic_morestack): Align the returned
stack pointer to a 32 byte boundary.
* config/i386/morestack.S (__morestack_non_split) [32-bit]: Don't
increment the return address until we have decided that we don't
have a varargs function.
(__morestack) [32-bit]: Align stack correctly when calling C
functions.
(__morestack) [64-bit]: Likewise.

From-SVN: r193264

55123.cc: Remove duplicate include.

* testsuite/20_util/shared_ptr/cons/55123.cc: Remove duplicate
include.

From-SVN: r193263

i386.c (make_dispatcher_decl): Guard with ASM_OUTPUT_TYPE_DIRECTIVE and HAVE_GNU_INDIRECT_FUNCTION.

* config/i386/i386.c (make_dispatcher_decl): Guard with
ASM_OUTPUT_TYPE_DIRECTIVE and HAVE_GNU_INDIRECT_FUNCTION.

From-SVN: r193261

aarch64_guard1.C: Add -fno-section-anchors.

2012-11-06  Andrew Pinski  <apinski@cavium.com>

* g++.dg/abi/aarch64_guard1.C: Add -fno-section-anchors.

From-SVN: r193260

ipa-inline-analysis.c (estimate_function_body_sizes, [...]): Cap time calculations.

* ipa-inline-analysis.c (estimate_function_body_sizes,
inline_update_overall_summary): Cap time calculations.

From-SVN: r193259

Update index.go from master testsuite.

From-SVN: r193258

i386.c (ix86_init_machine_status): Do not explicitly clear tls_descriptor_call_expanded_p again.

* config/i386/i386.c (ix86_init_machine_status): Do not
explicitly clear tls_descriptor_call_expanded_p again.

From-SVN: r193257

* config/i386/sse.md
(<avx_avx2>_maskstore<ssemodesuffix><avxsizesuffix>): Mark operand 0
as read and written by the instruction.

From-SVN: r193256

compiler, runtime: Size of int is now 64 bits on x86_64.

From-SVN: r193255

compiler, libgo: Fixes to prepare for 64-bit int.

From-SVN: r193254

compiler, runtime: Memcmp routine returns intgo.

From-SVN: r193253

ChangeLog: Add missing PR number.

* ChangeLog: Add missing PR number.
* testsuite/ChangeLog: Ditto.

From-SVN: r193252

re PR debug/54693 (VTA guality issues with loops)

PR debug/54693
* tree-ssa-threadedge.c (propagate_threaded_block_debug_into):
Use a stack vector before allocating a pointer set.

From-SVN: r193251

ipa-prop.c (ipa_get_param_decl_index_1): New function.

2012-11-06  Martin Jambor  <mjambor@suse.cz>

* ipa-prop.c (ipa_get_param_decl_index_1): New function.
(ipa_get_param_decl_index): Just call ipa_get_param_decl_index_1.
(ipa_populate_param_decls): Accept descriptors parameter rather
than the whole info.
(load_from_unmodified_param): Likewise.
(ipa_load_from_parm_agg_1): Likewise.
(ipa_load_from_parm_agg): Extract descriptors from info.
(compute_complex_assign_jump_func): Likewise.
(ipa_analyze_indirect_call_uses): Likewise.

From-SVN: r193250

ipa-inline.c (compute_uninlined_call_time): Return gcov_type.

* ipa-inline.c (compute_uninlined_call_time): Return gcov_type.
(compute_inlined_call_time): Watch overflows.
(relative_time_benefit): Compute in gcov_type.

From-SVN: r193249

Forgot changelog :(

From-SVN: r193248

cfgloopanal.c (get_loop_hot_path): New function.

* cfgloopanal.c (get_loop_hot_path): New function.
* tree-ssa-lop-ivcanon.c (struct loop_size): Add CONSTANT_IV,
NUM_NON_PURE_CALLS_ON_HOT_PATH, NUM_PURE_CALLS_ON_HOT_PATH,
NUM_BRANCHES_ON_HOT_PATH.
(tree_estimate_loop_size): Compute the new values.
(try_unroll_loop_completely): Disable unrolling of loops with only
calls or too many branches.
(tree_unroll_loops_completely): Deal also with outer loops of hot loops.
* cfgloop.h (get_loop_hot_path): Declare.
* params.def (PARAM_MAX_PEEL_BRANCHES): New parameters.
* invoke.texi (max-peel-branches): Document.

* gcc.dg/tree-ssa/loop-1.c: Make to look like a good unroling candidate still.
* gcc.dg/tree-ssa/loop-23.c: Likewise.
* gcc.dg/tree-ssa/cunroll-1.c: Unrolling now happens early.
* gcc.dg/tree-prof/unroll-1.c: Remove confused dg-options.

From-SVN: r193246

* ipa-pure-const.c (check_stmt): Fix debug info formatting.

From-SVN: r193245

i386.c (TARGET_INSTANTIATE_DECLS): New define.

* config/i386/i386.c (TARGET_INSTANTIATE_DECLS): New define.
(ix86_instantiate_decls): New function.
(ix86_expand_builtin) <case IX86_BUILTIN_LDMXCSR>: Use SLOT_TEMP
stack slot instead of SLOT_VIRTUAL.
<case IX86_BUILTIN_STMXCSR>: Ditto.
(assign_386_stack_local): Do not assert when virtual slot is valid.
* config/i386/i386.h (enum ix86_stack_slot): Remove SLOT_VIRTUAL.
* config/i386/i386.md (truncdfsf2): Do not use SLOT_VIRTUAL stack slot.
(truncxf<mode>2): Ditto.
(floatunssi<mode>2): Ditto.
(isinf<mode>2): Ditto.
* config/i386/sync.md (atomic_load<mode>): Ditto.
(atomic_store<mode>): Ditto.

From-SVN: r193244

* const-uniq-1.c: Expand regex to match AIX XCOFF labels.

From-SVN: r193243

re PR target/41993 ([sh] ICE in create_pre_exit, at mode-switching.c:399)

PR middle-end/41993
* gcc.dg/torture/pr41993.c: New test.

From-SVN: r193242

l_fma_float_?.c: Update.

* gcc.target/i386/l_fma_float_?.c: Update.
* gcc.target/i386/l_fma_double_?.c: Update.

* tree-vect-loop-manip.c (vect_do_peeling_for_loop_bound,
vect_do_peeling_for_alignment): Fix loop bound computation.
* tree-vect-loop.c (vect_transform_loop): Maintain loop bounds.

From-SVN: r193241

Makefile.in (osconstool): Revert previous change, still needed after all.

* Makefile.in (osconstool): Revert previous change, still needed
after all. Add call to copy-s-oscons target.

From-SVN: r193240

* gcc-interface/Makefile.in (copy-s-oscons): New target.

From-SVN: r193239

[multiple changes]

2012-11-06  Robert Dewar  <dewar@adacore.com>

* err_vars.ads, atree.ads: Minor reformatting.

2012-11-06  Arnaud Charlet  <charlet@adacore.com>

* gcc-interface/Make-lang.in: Update dependencies.
* gcc-interface/Makefile.in: Add runtime pairs for Android.
Rework handling of s-oscons.ads.
* s-osinte-android.ads, s-osinte-android.adb: New files.

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* gcc-interface/trans.c (gnat_to_gnu): For N_Real_Literal, create the
binary representation of vax floats.

From-SVN: r193238

* Makefile.in (osconstool): Removed, no longer needed.

From-SVN: r193237

re PR target/54089 ([SH] Refactor shift patterns)

PR target/54089
* config/sh/sh.c (and_xor_ior_costs, addsubcosts): Double the costs for
ops larger than SImode.
* config/sh/sh.md (rotcl, *rotcl): New insns and splits.
(ashldi3_k): Convert to insn_and_split and use new rotcl insn.

PR target/54089
* gcc.target/sh/pr54089-8.c: New.
* gcc.target/sh/pr54089-9.c: New.

From-SVN: r193236

[multiple changes]

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* sem_ch9.adb (Analyze_Protected_Type_Declaration): Fix thinko
in previous commit.

2012-11-06  Jose Ruiz  <ruiz@adacore.com>

* ali.adb (Scan_ALI): Fix parsing mechanism for -fstack-check.

2012-11-06  Thomas Quinot  <quinot@adacore.com>

* atree.adb, atree.ads, einfo.adb, errout.adb, errout.ads, erroutc.adb,
erroutc.ads, errutil.adb, errutil.ads, err_vars.ads, expander.adb,
exp_ch13.adb, exp_ch2.adb, exp_ch6.adb, exp_dist.adb, fe.h,
fmap.adb, fmap.ads, gprep.adb, makeutl.adb, osint.adb, osint.ads,
par_sco.adb, prepcomp.adb, prj-part.adb, prj-proc.adb, scng.adb,
sdefault.ads, sem_ch10.adb, sem_ch13.adb, sem_ch2.adb, sem_ch3.adb,
sem_ch4.adb, sem_ch5.adb, sem_dim.adb, sem_elab.adb, sem_eval.adb,
sem_intr.adb, sem_prag.adb, sem_type.adb, sem_warn.adb, stylesw.adb,
stylesw.ads, targparm.adb, targparm.ads (Cascaded_Error): Rename to
more descriptive name 'Check_Error_Detected'. Add calls to
Check_Error_Detected at places where semantic analysis is abandoned
assuming a previously detected error.

From-SVN: r193235

[multiple changes]

2012-11-06  Robert Dewar  <dewar@adacore.com>

* exp_ch4.adb: Minor comment change.

2012-11-06  Robert Dewar  <dewar@adacore.com>

* gnat_ugn.texi: Extensive revision of documentation of overflow
checking.
* vms_data.ads: Overflow check numbers must be in range 1-3,
not 0-3.

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* sem_ch9.adb (Analyze_Protected_Type_Declaration): Emit a
warning if pragma Priority is used in presence of an interrupt
handler.

From-SVN: r193234

checks.ads, [...]: Minor changes throughout for new overflow checking.

2012-11-06  Robert Dewar  <dewar@adacore.com>

* checks.ads, checks.adb, exp_ch4.adb: Minor changes throughout for
new overflow checking.
* exp_util.adb (Insert_Actions): Remove special casing of
Overflow_Check.
* gnat1drv.adb (Adjust_Global_Switches): Fixes for new handling
of overflow checks.
* sem.adb (Analyze): Remove special casing of Overflow_Check
(Analyze_List): ditto.
* sem_prag.adb (Analyze_Pragma, case Overflow_Checks): Remove
SUPPRESSED and change CHECKED to STRICT.
* sem_res.adb (Analyze_And_Resolve): No longer treat
Overflow_Check specially.
(Preanalyze_And_Resolve): ditto.
(Resolve): ditto.
* snames.ads-tmpl: Replace Name_Checked by Name_Strict.
* switch-c.adb (Get_Overflow_Mode): Eliminate 0 setting,
CHECKED => STRICT.
* types.ads (Overflow_Check_Type): Remove Suppressed, change
Checked to Strict (Suppress_Record): Overflow check controlled
by Suppress array.

From-SVN: r193233

atomic_base.h: Don't include <cstddef>, use nullptr.

2012-11-06  Paolo Carlini  <paolo.carlini@oracle.com>

* include/bits/atomic_base.h: Don't include <cstddef>, use nullptr.
* include/std/atomic: Likewise.
* include/tr2/dynamic_bitset: Likewise.

* libsupc++/vec.cc (compute_size(std::size_t, std::size_t,
std::size_t)): Fix for -fno-exceptions.

From-SVN: r193232

sem_res.adb (Preanalyze_And_Resolve): In Alfa mode do not disable checks...

2012-11-06  Ed Schonberg  <schonberg@adacore.com>

* sem_res.adb (Preanalyze_And_Resolve): In Alfa mode do not
disable checks, so that flags can be properly set on expressions
that are not further expanded.

From-SVN: r193231

exp_attr.adb, [...]: Minor reformatting.

2012-11-06  Robert Dewar  <dewar@adacore.com>

* exp_attr.adb, sem_attr.adb: Minor reformatting.

From-SVN: r193230

i386-protos.h (emit_i387_cw_initialization): Deleted.

        * config/i386/i386-protos.h (emit_i387_cw_initialization): Deleted.
        (emit_vzero): Added prototype.
        (ix86_mode_entry): Likewise.
        (ix86_mode_exit): Likewise.
        (ix86_emit_mode_set): Likewise.

        * config/i386/i386.c (typedef struct block_info_def): Deleted.
        (define BLOCK_INFO): Deleted.
        (check_avx256_stores): Added checking for MEM_P.
        (move_or_delete_vzeroupper_2): Deleted.
        (move_or_delete_vzeroupper_1): Deleted.
        (move_or_delete_vzeroupper): Deleted.
        (ix86_maybe_emit_epilogue_vzeroupper): Deleted.
        (function_pass_avx256_p): Deleted.
        (ix86_function_ok_for_sibcall): Deleted disabling sibcall.
        (nit_cumulative_args): Deleted initialization of of avx256 fields of
        cfun->machine.
        (ix86_emit_restore_sse_regs_using_mov): Deleted vzeroupper generation.
        (ix86_expand_epilogue): Likewise.
        (ix86_avx_u128_mode_needed): New.
        (ix86_i387_mode_needed): Renamed ix86_mode_needed.
        (ix86_mode_needed): New.
        (ix86_avx_u128_mode_after): New.
        (ix86_mode_after): New.
        (ix86_avx_u128_mode_entry): New.
        (ix86_mode_entry): New.
        (ix86_avx_u128_mode_exit): New.
        (ix86_mode_exit): New.
        (ix86_emit_mode_set): New.
        (ix86_expand_call): Deleted vzeroupper generation.
        (ix86_split_call_vzeroupper): Deleted.
        (ix86_init_machine_status): Initialzed optimize_mode_switching.
        (ix86_expand_special_args_builtin): Changed.
        (ix86_reorg): Deleted a call of move_or_delete_vzeroupper.

        * config/i386/i386.h  (VALID_AVX256_REG_OR_OI_MODE): New.
        (AVX_U128): New.
        (avx_u128_state): New.
        (NUM_MODES_FOR_MODE_SWITCHING): Added AVX_U128_ANY.
        (MODE_AFTER): New.
        (MODE_ENTRY): New.
        (MODE_EXIT): New.
        (EMIT_MODE_SET): Changed.
        (machine_function): Deleted avx256 fields.

        * config/i386/i386.md (UNSPEC_CALL_NEEDS_VZEROUPPER): Deleted.
        (define_insn_and_split "*call_vzeroupper"): Deleted.
        (define_insn_and_split "*call_rex64_ms_sysv_vzeroupper"): Deleted.
        (define_insn_and_split "*sibcall_vzeroupper"): Deleted.
        (define_insn_and_split "*call_pop_vzeroupper"): Deleted.
        (define_insn_and_split "*sibcall_pop_vzeroupper"): Deleted.
        (define_insn_and_split "*call_value_vzeroupper"): Deleted.
        (define_insn_and_split "*sibcall_value_vzeroupper"): Deleted.
        (define_insn_and_split "*call_value_rex64_ms_sysv_vzeroupper"): Deleted.
        (define_insn_and_split "*call_value_pop_vzeroupper"): Deleted.
        (define_insn_and_split "*sibcall_value_pop_vzeroupper"): Deleted.
        (define_expand "return"): Deleted vzeroupper emitting.
        (define_expand "simple_return"): Deleted.

        * config/i386/predicates.md (vzeroupper_operation): New.

        * config/i386/sse.md (avx_vzeroupper): Changed.

testsuite/ChangeLog:
        * gcc.target/i386/avx-vzeroupper-5.c: Changed scan-assembler-times.
        * gcc.target/i386/avx-vzeroupper-8.c: Likewise.
        * gcc.target/i386/avx-vzeroupper-9.c: Likewise.
        * gcc.target/i386/avx-vzeroupper-10.c: Likewise.
        * gcc.target/i386/avx-vzeroupper-11.c: Likewise.
        * gcc.target/i386/avx-vzeroupper-12.c: Likewise.
        * gcc.target/i386/avx-vzeroupper-19.c: Likewis.
        * gcc.target/i386/avx-vzeroupper-27.c: New.

From-SVN: r193229

exp_attr.adb (Expand_N_Attribute_Reference): Apply a predicate check when evaluating the attribute Valid...

2012-11-06  Gary Dismukes  <dismukes@adacore.com>

* exp_attr.adb (Expand_N_Attribute_Reference): Apply a predicate
check when evaluating the attribute Valid, and issue a warning
about infinite recursion when the check occurs within the
predicate function of the prefix's subtype.
* exp_ch4.adb (Expand_N_In): Remove test for Is_Discrete_Type
when we're checking that there's no predicate check function as a
condition for substituting a Valid check for a scalar membership
test (substitution should be suppressed for any kind of scalar
subtype with a predicate check). Also, don't emit a predicate
check when the right operand is a range.

From-SVN: r193228

[multiple changes]

2012-11-06  Robert Dewar  <dewar@adacore.com>

* par_sco.adb, bindgen.adb, exp_vfpt.adb, exp_vfpt.ads, exp_ch2.adb,
errout.adb, sem_ch8.adb: Minor reformatting.

2012-11-06  Hristian Kirtchev  <kirtchev@adacore.com>

* einfo.adb: Include Loop_Entry_Attributes to the list of
Node/List/Elist10 usage.
(Loop_Entry_Attributes): New routine.
(Set_Loop_Entry_Attributes): New routine.
(Write_Field10_Name): Add an output string for Loop_Entry_Attributes.
* einfo.ads: Define new attribute Loop_Entry_Attributes along
with its usage in nodes.
(Loop_Entry_Attributes): New routine and dedicated pragma Inline.
(Set_Loop_Entry_Attributes): New routine and dedicated pragma Inline.
* exp_attr.adb (Expand_N_Attribute_Reference): Do not expand
Attribute_Loop_Entry here.
* exp_ch5.adb: Add with and use clause for Elists;
(Expand_Loop_Entry_Attributes): New routine.
(Expand_N_Loop_Statement): Add a call to Expand_Loop_Entry_Attributes.
* exp_prag.adb (Expand_Pragma_Loop_Assertion): Specialize the
search to include multiple nested loops produced by the expansion
of Ada 2012 array iterator.
* sem_attr.adb: Add with and use clause for Elists.
(Analyze_Attribute): Check the legality of attribute Loop_Entry.
(Resolve_Attribute): Nothing to do for Loop_Entry.
(S14_Attribute): New routine.
* snames.ads-tmpl: Add a comment on entries marked with
HiLite. Add new name Name_Loop_Entry. Add new attribute
Attribute_Loop_Entry.

From-SVN: r193227

re PR fortran/54917 ([OOP] TRANSFER on polymorphic variable causes ICE)

2012-11-06  Janus Weil  <janus@gcc.gnu.org>

PR fortran/54917
* target-memory.c (gfc_target_expr_size,gfc_target_interpret_expr):
Handle BT_CLASS.
* trans-intrinsic.c (gfc_conv_intrinsic_transfer): Add support for
polymorphic arguments.

2012-11-06  Janus Weil  <janus@gcc.gnu.org>

PR fortran/54917
* gfortran.dg/transfer_class_1.f90: New.
* gfortran.dg/transfer_class_2.f90: New.

From-SVN: r193226

[multiple changes]

2012-11-06  Geert Bosch  <bosch@adacore.com>

* eval_fat.adb (Machine, Succ): Fix front end to support static
evaluation of attributes on targets with both VAX and IEEE float.
* sem_util.ads, sem_util.adb (Has_Denormals, Has_Signed_Zeros):
New type-specific functions. Previously we used Denorm_On_Target
and Signed_Zeros_On_Target directly, but that doesn't work well
for OpenVMS where a single target supports both floating point
with and without signed zeros.
* sem_attr.adb (Attribute_Denorm, Attribute_Signed_Zeros): Use
new Has_Denormals and Has_Signed_Zeros functions to support both
IEEE and VAX floating point on a single target.

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* bindgen.adb (System_Interrupts_Used): New variable.
(Gen_Adainit): Declare and call
Install_Restricted_Handlers_Sequential if System.Interrupts is
used when elaboration policy is sequential.

2012-11-06  Ed Schonberg  <schonberg@adacore.com>

* sem_ch8.adb: Complete previous change.

From-SVN: r193225

[multiple changes]

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* fe.h (Get_Vax_Real_Literal_As_Signed): Declare.
* eval_fat.adb, eval_fat.ads (Decompose_Int): Move spec in package spec.
* exp_vfpt.adb, exp_vfpt.ads (Vax_Real_Literal_As_Signed): New function.
(Expand_Vax_Real_Literal): Remove.
* exp_ch2.adb (Expand_N_Real_Literal): Do nothing.
* sem_eval.adb (Expr_Value_R): Remove special Vax float case,
as this is not anymore a special case.

2012-11-06  Yannick Moy  <moy@adacore.com>

* uintp.ads: Minor correction of typo in comment.

2012-11-06  Ed Schonberg  <schonberg@adacore.com>

* sem_prag.adb (Analyze_Pragnma, case Unchecked_Union): remove
requirement that discriminants of an unchecked_union must have
defaults.

2012-11-06  Vasiliy Fofanov  <fofanov@adacore.com>

* projects.texi: Minor wordsmithing.

From-SVN: r193224

sem_ch9.adb, [...]: Minor reformatting.

2012-11-06  Robert Dewar  <dewar@adacore.com>

* sem_ch9.adb, exp_vfpt.adb, xoscons.adb: Minor reformatting.

From-SVN: r193223

[multiple changes]

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* exp_vfpt.adb: Document VAX float point layout.

2012-11-06  Geert Bosch  <bosch@adacore.com>

* eval_fat.adb (Machine): Don't return -0.0 on targets without
signed zeros.

2012-11-06  Ed Schonberg  <schonberg@adacore.com>

* sem_ch9.adb (Analyze_Entry_Call_Alternative,
Check_Triggering_Statement): Reject properly an indirect call.

From-SVN: r193222

xoscons.adb, [...]: Add support for post-processing.

2012-11-06  Pascal Obry  <obry@adacore.com>

* xoscons.adb, xutil.adb, xutil.ads: Add support for post-processing.

From-SVN: r193221

[multiple changes]

2012-11-06  Yannick Moy  <moy@adacore.com>

* s-bignum.adb (Div_Rem): Fix another bug in step D3.

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* s-tarest.adb (Create_Restricted_Task): Call
Create_Restricted_Task_Sequential in sequential case.

2012-11-06  Hristian Kirtchev  <kirtchev@adacore.com>

* exp_prag.adb (Expand_Pragma_Loop_Assertion): Do not rewrite the
pragma into a null statement as its presence is desirable in -gnatG
output.

From-SVN: r193219

[multiple changes]

2012-11-06  Ed Schonberg  <schonberg@adacore.com>

* sem_ch8.adb (Check_Constrained_Object): Do nothing if the
renamed object is a limited record.

2012-11-06  Bernard Banner  <banner@adacore.com>

* sysdep.c (_getpagesize): New. Minor reformatting.

From-SVN: r193218

sem_prag.adb: Minor reformatting.

2012-11-06  Robert Dewar  <dewar@adacore.com>

* sem_prag.adb: Minor reformatting.

2012-11-06  Robert Dewar  <dewar@adacore.com>

* s-bignum.adb (Div_Rem): Fix bug in step D3.
* uintp.adb (UI_Div_Rem): Add comment on bug in step D3.

From-SVN: r193217

[multiple changes]

2012-11-06  Hristian Kirtchev  <kirtchev@adacore.com>

* exp_prag.adb (Expand_Pragma_Loop_Assertion): Update the comment
on intended expansion. Reimplement the logic which expands the
termination variants.
(Process_Increase_Decrease): Update the parameter profile and the
comment related to it. Accommodate the new aggregate-like appearance of
the termination variants.
* sem_prag.adb (Analyze_Pragma): Update the syntax of pragma
Loop_Assertion. Reimplement the semantic analysis of the pragma
to accommodate the new aggregate-like variant.
(Check_Variant): New routine.
* snames.ads-tmpl: Change names Name_Decreases and Name_Increases
to Name_Decreasing and Name_Increasing respectively. Add name
Variant.

2012-11-06  Ed Schonberg  <schonberg@adacore.com>

* sem_eval.adb: Static evaluation of case expressions.

From-SVN: r193216

[multiple changes]

2012-11-06  Robert Dewar  <dewar@adacore.com>

* exp_prag.adb, impunit.adb, exp_ch9.adb, par-ch4.adb,
s-tarest.adb: Minor reformatting.

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* s-tposen.ads: Minor comment update.

2012-11-06  Arnaud Charlet  <charlet@adacore.com>

* sysdep.c: Rename sig* wrappers to use unique names.

2012-11-06  Yannick Moy  <moy@adacore.com>

* exp_dbug.adb (Qualify_Entity_Name): Mark entity as having a qualified
name after being treated, in formal verification mode.

2012-11-06  Fedor Rybin  <frybin@adacore.com>

* gnat_ugn.texi: Updating gnattest section to reflect changes
in default behaviour of the tool.

From-SVN: r193215

[multiple changes]

2012-11-06  Thomas Quinot  <quinot@adacore.com>

* s-oscons-tmplt.c: Interfaces.C now needs to be WITH'd even
on platforms that do not support sockets (for the benefit of
subtype IOCTL_Req_T).

2012-11-06  Ed Schonberg  <schonberg@adacore.com>

* par-ch4.adb (P_Primary): if-expressions, case-expressions,
and quantified expressions are legal if surrounded by parentheses
from an enclosing context, such as a call or an instantiation.

2012-11-06  Yannick Moy  <moy@adacore.com>

* impunit.adb (Get_Kind_Of_Unit): Return appropriate kind for
predefined implementation files, instead of returning
Not_Predefined_Unit on all .adb files.

2012-11-06  Tristan Gingold  <gingold@adacore.com>

* exp_ch9.adb (Build_Activation_Chain_Entity): Return immediately if
partition elaboration policy is sequential.
(Build_Task_Activation_Call): Likewise. Use
Activate_Restricted_Tasks on restricted profile.
(Make_Task_Create_Call): Do not use the _Chain
parameter if elaboration policy is sequential. Call
Create_Restricted_Task_Sequential in that case.
* exp_ch3.adb (Build_Initialization_Call): Change condition to
support concurrent elaboration policy.
(Build_Record_Init_Proc): Likewise.
(Init_Formals): Likewise.
* bindgen.adb (Gen_Adainit): Declare Partition_Elaboration_Policy
and set it in generated code if the elaboration policy is
sequential. The procedure called to activate all tasks is now
named __gnat_activate_all_tasks.
* rtsfind.adb (RE_Activate_Restricted_Task,
RE_Create_Restricted_Task_Sequential): New RE_Id literals.
* s-tarest.adb (Create_Restricted_Task): Added to create a task without
adding it on an activation chain.
(Activate_Tasks): Has now a Chain parameter.
(Activate_All_Tasks_Sequential): Added. Called by the binder to
activate all tasks.
(Activate_Restricted_Tasks): Added. Called during elaboration to
activate tasks of the units.
* s-tarest.ads: Remove pragma Partition_Elaboration_Policy.
(Partition_Elaboration_Policy): New variable (set by the binder).
(Create_Restricted_Task): Revert removal of the chain parameter.
(Create_Restricted_Task_Sequential): New procedure.
(Activate_Restricted_Tasks): Revert removal.
(Activate_All_Tasks_Sequential): New procedure.

From-SVN: r193214

2012-11-06  Bernard Banner  <banner@adacore.com>

* adaint.c Add file macro definitions missing on Android.
* adaint.h Avoid definitions related to task affinity and CPU
sets since this functionality is missing on the Android
* errno.c (__set_errno): Android already contains such a named
procedure so do include again.
* gsocket.h: Sockets not supported on Android.
* init.c: Avoid linux related code not supported on Android.
* sysdep.c (sigismember, sigaddset, sigdelset, sigemptyset,
sigfillset): wrapper functions since sig routines are defined
as inline macros on Android.
* terminals.c: Add stubs for terminal related functions not
supported on Android.

From-SVN: r193213

sem_prag.adb (Analyze_Pragma): Do not output the characters of an illegal argument as it may not have...

2012-11-06  Hristian Kirtchev  <kirtchev@adacore.com>

* sem_prag.adb (Analyze_Pragma): Do not
output the characters of an illegal argument as it may not have
characters to begin with.

2012-11-06  Hristian Kirtchev  <kirtchev@adacore.com>

* exp_prag.adb (Expand_Pragma_Loop_Assertion):
Change the order of argument processing to avoid disappearing
increase / decrease expressions.

From-SVN: r193212

[multiple changes]

2012-11-06  Hristian Kirtchev  <kirtchev@adacore.com>

* exp_prag.adb: Add with and use clause for Sem_Ch8.
(Expand_N_Pragma): Add a new variant to expand pragma Loop_Assertion.
(Expand_Pragma_Loop_Assertion): New routine.
* par-prag.adb (Prag): The semantic analysis of pragma
Loop_Assertion is carried out by Analyze_Pragma. No need for
checks in the parser.
* sem_prag.adb: Add a reference position value for pragma
Loop_Assertion in Sig_Flags.
(Analyze_Pragma): Add semantic analysis for pragma Loop_Assertion.
* snames.ads-tmpl: Add the following new names:
Name_Decreases Name_Increases Name_Loop_Assertion.
Add new pragma id Pragma_Loop_Assertion.

2012-11-06  Ed Schonberg  <schonberg@adacore.com>

* exp_ch5.adb: Identifier in iterator must have debug
information.

From-SVN: r193211

re PR target/41993 ([sh] ICE in create_pre_exit, at mode-switching.c:399)

PR target/41993
* mode-switching.c (create_pre_exit): Set return_copy to
last_insn when copy_start is a pseudo reg.

Co-Authored-By: Kaz Kojima <kkojima@gcc.gnu.org>
From-SVN: r193210

Makefile.in (osconstool): Fix target.

libada/
* Makefile.in (osconstool): Fix target.
ada/
* gcc-interface/Makefile.in, gcc-interface/Make-lang.in: Remove
duplicate rules handled by Make-generated.in.

From-SVN: r193209

i386.c (bdesc_args): Rename CODE_FOR_avx2_umulhrswv16hi3 to CODE_FOR_avx2_pmulhrswv16hi3.

* config/i386/i386.c (bdesc_args): Rename CODE_FOR_avx2_umulhrswv16hi3 to
CODE_FOR_avx2_pmulhrswv16hi3.
* config/i386/predicates.md (const1_operand): Extend for vectors.
* config/i386/sse.md (ssse3_avx2): Extend.
(ssedoublemode): Ditto.
(<sse2_avx2>_uavg<mode>3): Merge avx2_uavgv32qi3, sse2_uavgv16qi3,
avx2_uavgv16hi3 and sse2_uavgv8hi3 into one.
(*<sse2_avx2>_uavg<mode>3): Merge *avx2_uavgv32qi3, *sse2_uavgv16qi3,
*avx2_uavgv16hi3 and *sse2_uavgv8hi3 into one.
(PMULHRSW): New.
(<ssse3_avx2>_pmulhrsw<mode>3): Merge avx2_umulhrswv16hi3,
ssse3_pmulhrswv8hi3 and ssse3_pmulhrswv4hi3 into one.
(*avx2_pmulhrswv16hi3): Replace const_vector with const1_operand
predicate.
(*ssse3_pmulhrswv8hi3): Ditto.
(*ssse3_pmulhrswv4hi3): Ditto.

From-SVN: r193208

Update Copyright years.

From-SVN: r193207

Fix ChangeLog typo.

From-SVN: r193206

epiphany.c (epiphany_address_cost): Use MODE parameter.

        * config/epiphany/epiphany.c (epiphany_address_cost):
        Use MODE parameter.

From-SVN: r193205

Function Multiversioning
========================

Sriraman Tallam, tmsriram@google.com

Overview of the patch which adds support to specify function versions.  This is
only enabled for target i386.

Example:

int foo ();  /* Default version */
int foo () __attribute__ ((target("avx,popcnt")));/*Specialized for avx and popcnt */
int foo () __attribute__ ((target("arch=core2,ssse3")));/*Specialized for core2 and ssse3*/

int main ()
{
 int (*p)() = &foo;
 return foo () + (*p)();
}

int foo ()
{
 return 0;
}

int __attribute__ ((target("avx,popcnt")))
foo ()
{
 return 0;
}

int __attribute__ ((target("arch=core2,ssse3")))
foo ()
{
 return 0;
}

The above example has foo defined 3 times, but all 3 definitions of foo are
different versions of the same function. The call to foo in main, directly and
via a pointer, are calls to the multi-versioned function foo which is dispatched
to the right foo at run-time.

Front-end changes:

The front-end changes are calls at appropriate places to target hooks that
determine the following:

* Determine if two function decls with the same signature are versions.
* Determine the assembler name of a function version.
* Generate the dispatcher function for a set of function versions.
* Compare versions to see if one has a higher priority over the other.

All the implementation happens in the target-specific config/i386/i386.c.

What does the patch do?

* Tracking decls that correspond to function versions of function
name, say "foo":

When the front-end sees more than one decl for "foo", it calls a target hook to
determine if they are versions. To prevent duplicate definition errors with
other versions of "foo", "decls_match" function in cp/decl.c is made to return
false when 2 decls have are deemed versions by the target. This will make all
function versions of "foo" to be added to the overload list of "foo".

* Change the assembler names of the function versions.

For i386, the target changes the assembler names of the function versions by
 suffixing the sorted list of args to "target" to the function name of "foo".
For example, the assembler name of
 "void foo () __attribute__ ((target ("sse4")))" will
become _Z3foov.sse4.  The target hook mangle_decl_assembler_name is used
for this.

* Overload resolution:

 Function "build_over_call" in cp/call.c sees a call to function
"foo", which is multi-versioned. The overload resolution happens in
function "joust" in "cp/call.c". Here, the call to "foo" has all
possible versions of "foo" as candidates. All the candidates of "foo" are
stored in the cgraph side data structure. Each version of foo is chained in a
doubly-linked list with the default function as the first element.  This allows
any pass to access all the semantically identical versions. A call to a
multi-versioned function will be replaced by a call to a dispatcher function,
determined by a target hook, to execute the right function version at run-time.

Optimization to directly call a version when possible:
Also, in joust, where overload resolution happens, a multiversioned function
resolution is made to return the most specialized version.  This is the version
that will be checked for dispatching first and is determined by the target.
Now, if the caller can inline this function version then a direct call is made
to this function version rather than go through the dispatcher. When a direct
call cannot be made, a call to the dispatcher function is created.

* Creating the dispatcher body.

The dispatcher body, called the resolver is made only when there is a call to a
multiversioned function dispatcher or the address of a function is taken. This
is generated during cgraph_analyze_function. This is done by another target hook.

* Dispatch ordering.

The order in which the function versions are checked during dispatch is based
on a priority value assigned for the ISA that is catered. More specialized
versions are checked for dispatching first.  This is to mitigate the ambiguity
that can arise when more than one function version is valid for execution on
a particular platform.  This is not a perfect solution, and in future the user
should be allowed to assign a dispatching priority value to each version.

Function MV in the Intel compiler:

The intel compiler supports function multiversioning and the syntax is
similar to the patch proposed here.  Here is an example of how to
generate multiple function versions with the intel compiler.

/* Create a stub function to specify the various versions of function that
   will be created, using declspec attribute cpu_dispatch.  */
__declspec (cpu_dispatch (core_i7_sse4_2, atom, generic))
void foo () {};

/* Bodies of each function version.  */

/* Intel Corei7 processor + SSE4.2 version.  */
__declspec (cpu_specific(core_i7_sse4_2))
void foo ()
{
  printf ("corei7 + sse4.2");
}

/* Atom processor.  */
__declspec (cpu_specific(atom))
void foo ()
{
  printf ("atom");
}

/* The generic or the default version.  */
__declspec (cpu_specific(generic))
void foo ()
{
  printf ("This is generic");
}

A new function version is generated by defining a new function with the same
signature but with a different cpu_specific declspec attribute string.  The
set of cpu_specific strings that are allowed is the following:

"core_2nd_gen_avx"
"core_aes_pclmulqdq"
"core_i7_sse4_2"
"core_2_duo_sse4_1"
"core_2_duo_ssse3"
"atom"
"pentium_4_sse3"
"pentium_4"
"pentium_m"
"pentium_iii"
"generic"

Comparison with the GCC MV implementation in this patch:

* Version creation syntax:

The implementation in this patch also has a similar syntax to specify function
versions. The first stub function is not needed.  Here is the code to generate
the function versions with this patch:

/* Intel Corei7 processor + SSE4.2 version.  */
__attribute__ ((target ("arch=corei7, sse4.2")))
void foo ()
{
  printf ("corei7 + sse4.2");
}

/* Atom processor.  */
__attribute__ ((target ("arch=atom")))
void foo ()
{
  printf ("atom");
}

void foo ()
{
}

The target attribute can have one of the following arch names:

"amd"
"intel"
"atom"
"core2"
"corei7"
"nehalem"
"westmere"
"sandybridge"
"amdfam10h"
"barcelona"
"shanghai"
"istanbul"
"amdfam15h"
"bdver1"
"bdver2"

and any number of the following ISA names:

"cmov"
"mmx"
"popcnt"
"sse"
"sse2"
"sse3"
"ssse3"
"sse4.1"
"sse4.2"
"avx"
"avx2"

* doc/tm.texi.in (TARGET_OPTION_FUNCTION_VERSIONS): New hook
description.
* (TARGET_COMPARE_VERSION_PRIORITY): New hook description.
* (TARGET_GET_FUNCTION_VERSIONS_DISPATCHER): New hook description.
* (TARGET_GENERATE_VERSION_DISPATCHER_BODY): New hook description.
* doc/tm.texi: Regenerate.
* target.def (compare_version_priority): New target hook.
* (generate_version_dispatcher_body): New target hook.
* (get_function_versions_dispatcher): New target hook.
* (function_versions): New target hook.
* cgraph.c (cgraph_fnver_htab): New htab.
(cgraph_fn_ver_htab_hash): New function.
(cgraph_fn_ver_htab_eq): New function.
(version_info_node): New pointer.
(insert_new_cgraph_node_version): New function.
(get_cgraph_node_version): New function.
(delete_function_version): New function.
(record_function_versions): New function.
* cgraph.h (cgraph_node): New bitfield dispatcher_function.
(cgraph_function_version_info): New struct.
(get_cgraph_node_version): New function.
(insert_new_cgraph_node_version): New function.
(record_function_versions): New function.
(delete_function_version): New function.
(init_lowered_empty_function): Expose function.
* tree.h (DECL_FUNCTION_VERSIONED): New macro.
(tree_function_decl): New bit-field versioned_function.
* cgraphunit.c (cgraph_analyze_function): Generate body of multiversion
function dispatcher.
(cgraph_analyze_functions): Analyze dispatcher function.
(init_lowered_empty_function): Make non-static. New parameter in_ssa.
(assemble_thunk): Add parameter to call to init_lowered_empty_function.
* config/i386/i386.c (add_condition_to_bb): New function.
(get_builtin_code_for_version): New function.
(ix86_compare_version_priority): New function.
(feature_compare): New function.
(dispatch_function_versions): New function.
(ix86_function_versions): New function.
(attr_strcmp): New function.
(ix86_mangle_function_version_assembler_name): New function.
(ix86_mangle_decl_assembler_name): New function.
(make_name): New function.
(make_dispatcher_decl): New function.
(is_function_default_version): New function.
(ix86_get_function_versions_dispatcher): New function.
(make_attribute): New function.
(make_resolver_func): New function.
(ix86_generate_version_dispatcher_body): New function.
(fold_builtin_cpu): Return integer for cpu builtins.
(TARGET_MANGLE_DECL_ASSEMBLER_NAME): New macro.
(TARGET_COMPARE_VERSION_PRIORITY): New macro.
(TARGET_GENERATE_VERSION_DISPATCHER_BODY): New macro.
(TARGET_GET_FUNCTION_VERSIONS_DISPATCHER): New macro.
(TARGET_OPTION_FUNCTION_VERSIONS): New macro.

* class.c (add_method): Change assembler names of function versions.
(mark_versions_used): New static function.
(resolve_address_of_overloaded_function): Create dispatcher decl and
return address of dispatcher instead.
* decl.c (decls_match): Make decls unmatched for versioned
functions.
(duplicate_decls): Remove ambiguity for versioned functions.
Delete versioned function data for merged decls.
* decl2.c (check_classfn): Check attributes of versioned functions
for match.
* call.c (get_function_version_dispatcher): New function.
(mark_versions_used): New static function.
(build_over_call): Make calls to multiversioned functions
to call the dispatcher.
(joust): For calls to multi-versioned functions, make the most
specialized function version win.

* testsuite/g++.dg/mv1.C: New test.
* testsuite/g++.dg/mv2.C: New test.
* testsuite/g++.dg/mv3.C: New test.
* testsuite/g++.dg/mv4.C: New test.
* testsuite/g++.dg/mv5.C: New test.
* testsuite/g++.dg/mv6.C: New test.

From-SVN: r193204

* recog.c (extract_insn): Enabled alternative defaults to 1.

From-SVN: r193203

* include/profile/map.h (map::emplace_hint): Add missing return.

From-SVN: r193202

Daily bump.

From-SVN: r193201

Replace REX_INT_REG_P with REX_INT_REGNO_P

* config/i386/i386.c (print_reg): Replace REX_INT_REG_P with
REX_INT_REGNO_P.

From-SVN: r193197

deque: Constrain InputIterator parameters.

* include/profile/deque: Constrain InputIterator parameters.
* include/profile/forward_list: Likewise.
* include/profile/list: Likewise.
* include/profile/map.h: Likewise.
* include/profile/multimap.h: Likewise.
* include/profile/set.h: Likewise.
* include/profile/multiset.h: Likewise.
* include/profile/vector: Likewise.

From-SVN: r193196

re PR testsuite/55186 (gcc.dg/const-uniq-1.c fails due to vector expected but not being in the constant pool)

PR testsuite/55186
* gcc.dg/const-uniq-1.c (a): Increase length four times.

From-SVN: r193194

Use -Wl,-undefined,dynamic_lookup on darwin

* gcc.dg/torture/pr53922.c: Use -Wl,-undefined,dynamic_lookup on
darwin.

From-SVN: r193193

re PR tree-optimization/54986 (segfault on constant initialized to object address at -O)

PR tree-optimization/54986
* gimple-fold.c (canonicalize_constructor_val): Strip again all no-op
conversions on entry but add them back on exit if needed.

From-SVN: r193188

final.c (final_scan_insn): Handle all comparison codes in non-jump and cmove insn.

* gcc/final.c (final_scan_insn) [HAVE_cc0]: Handle all comparison
codes in non-jump and cmove insn.

* gcc/testsuite/gcc.dg/torture/fp-compare.c: New testcase.

From-SVN: r193187

forward_list: Update to meet allocator-aware requirements.

* include/profile/forward_list: Update to meet allocator-aware
requirements.
* include/debug/forward_list: Likewise.
* include/debug/vector: Verify allocators are swapped or equal.
* include/debug/macros.h (__glibcxx_check_equal_allocs): Define.
* include/debug/formatter.h: Add new debug message.
* src/c++11/debug.cc: Likewise.
* testsuite/23_containers/forward_list/allocator/swap.cc: Do not
swap containers with non-propagating, non-equal allocators.
* testsuite/23_containers/vector/allocator/swap.cc: Likewise.

From-SVN: r193186

re PR libstdc++/55028 (_GLIBCXX_DEBUG is broken when using v7 namespace)

2012-11-05  Benjamin Kosnik  <bkoz@redhat.com>
            Oleg Smolsky  <oleg@smolsky.net>

PR libstdc++/55028
*  config/abi/pre/gnu-versioned-namespace.ver: Add symbols.
* testsuite/23_containers/unordered_multimap/insert/55028-debug.cc: New.

Co-Authored-By: Oleg Smolsky <oleg@smolsky.net>
From-SVN: r193185

throw_allocator.h (__throw_value_base): Add move semantic, not throwing.

2012-10-05  François Dumont  <fdumont@gcc.gnu.org>

* include/ext/throw_allocator.h (__throw_value_base): Add move
semantic, not throwing.
(__throw_value_limit): Likewise.
(__throw_value_random): Likewise.
* testsuite/util/exception/safety.h: Add validation of C++11
methods emplace/emplace_front/emplace_back/emplace_hint.
* testsuite/util/testsuite_container_traits.h: Signal emplace
support on deque, forward_list, list and vector.
* testsuite/23_containers/deque/requirements/exception/
propagation_consistent.cc: Remove dg-do run fail.

From-SVN: r193184

mode-switching.c (create_pre_exit): Force late switching if __builtin_{apply,return} emitted a load that require...

* mode-switching.c (create_pre_exit): Force late switching if
__builtin_{apply,return} emitted a load that require mode,
other than MODE_EXIT.

Co-Authored-By: Vladimir Yakovlev <vladimir.b.yakovlev@intel.com>
From-SVN: r193182

re PR libstdc++/55215 (Constructor seeding is broken for Mersenne twister)

2012-11-05  Paolo Carlini  <paolo.carlini@oracle.com>

PR libstdc++/55215
* include/bits/random.tcc (mersenne_twister_engine<>::seed(_Sseq&)):
Assign state_size to _M_p.
* testsuite/26_numerics/random/mersenne_twister_engine/cons/55215.cc:
New.
* testsuite/26_numerics/random/independent_bits_engine/cons/55215.cc:
Likewise.
* testsuite/26_numerics/random/shuffle_order_engine/cons/55215.cc:
Likewise.
* testsuite/26_numerics/random/subtract_with_carry_engine/cons/
55215.cc: Likewise.
* testsuite/26_numerics/random/discard_block_engine/cons/55215.cc:
Likewise.
* testsuite/26_numerics/random/linear_congruential_engine/cons/
55215.cc: Likewise.

From-SVN: r193181

re PR target/55204 (ICE: in extract_insn, at recog.c:2140 (unrecognizable insn) with -O --param loop-invariant-max-bbs-in-loop=0)

gcc/
PR target/55204
* config/i386/i386.c (ix86_address_subreg_operand): Remove stack
pointer check.
(print_reg): Use true_regnum rather than REGNO.
(ix86_print_operand_address): Remove SUBREG handling.

From-SVN: r193178

const-1.c: Update.

* gcc.dg/const-1.c: Update.
* gcc.dg/pure-1.c: Update.
* tree-ssa-loop-niter.c (finite_loop_p): Revamp to be just wrapper of
max_loop_iterations.

From-SVN: r193175

Detect overflow in size calculations in __cxa_vec_new{2,3}

2012-11-03  Florian Weimer  <fweimer@redhat.com>

* libsupc++/vec.cc (compute_size): New.
(__cxa_vec_new2, __cxa_vec_new3): Use it.
* testsuite/18_support/cxa_vec.cc: New.

From-SVN: r193174

runtime: provide initcontext and fixcontext for NetBSD

From-SVN: r193173

os: support more OSes

From-SVN: r193172

reorg.c (fill_simple_delay_slots): Avoid calling optimize_skip with a return instruction.

* reorg.c (fill_simple_delay_slots): Avoid calling optimize_skip
with a return instruction.

From-SVN: r193171

re PR rtl-optimization/55151 (ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC)

2012-11-05  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/55151
* lra-constraints.c (process_alt_operands): Permit putting reg
value into memory.  Increase reject for this case.

2012-11-05  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/55151
* gcc.dg/pr55151.c: New test.

From-SVN: r193170

final.c (reemit_insn_block_notes): Do not change scope if insn location is UNKNOWN_LOCATION.

2012-11-05  Dehao Chen  <dehao@google.com>

* final.c (reemit_insn_block_notes): Do not change scope if insn
location is UNKNOWN_LOCATION.

From-SVN: r193169

md.texi (Defining Attributes): Document that we are defining HAVE_ATTR_name macors as 1 for defined attributes...

* doc/md.texi (Defining Attributes): Document that we are defining
HAVE_ATTR_name macors as 1 for defined attributes, and as 0
for undefined special attributes.
* final.c (asm_insn_count, align_fuzz): Always define.
(insn_current_reference_address): Likewise.
(init_insn_lengths): Use if (HAVE_ATTR_length) instead of
#ifdef HAVE_ATTR_length.
(get_attr_length_1, shorten_branches, final): Likewise.
(final_scan_insn, output_asm_name): Likewise.
* genattr.c (gen_attr): Define HAVE_ATTR_name macros for
defined attributes as 1.
Remove ancient get_attr_alternative compatibility code.
For special purpose attributes not provided, define HAVE_ATTR_name
as 0.
In case no length attribute is given, provide stub definitions
for insn_*_length* functions, and also include insn-addr.h.
In case no enabled attribute is given, provide stub definition.
* genattrtab.c (write_length_unit_log): Always write a definition.
* hooks.c (hook_int_rtx_1, hook_int_rtx_unreachable): New functions.
* hooks.h (hook_int_rtx_1, hook_int_rtx_unreachable): Declare.
* lra-int.h (struct lra_insn_recog_data): Make member
alternative_enabled_p unconditional.
* lra.c (free_insn_recog_data): Use if (HAVE_ATTR_length) instead of
#ifdef HAVE_ATTR_length.
(lra_set_insn_recog_data): Likewise.  Make initialization of
alternative_enabled_p unconditional.
(lra_update_insn_recog_data): Use #if instead of #ifdef for
HAVE_ATTR_enabled.
* recog.c [!HAVE_ATTR_enabled] (get_attr_enabled): Don't define.
(extract_insn): Check HAVE_ATTR_enabled.
(gate_handle_split_before_regstack): Use #if instead of
#if defined for HAVE_ATTR_length.

From-SVN: r193168

re PR debug/54970 (Missing DW_OP_GNU_implicit_pointer in debuginfo)

PR debug/54970
PR debug/54971
* gcc.dg/guality/pr54970.c: Use NOP instead of "NOP" in inline-asm.

From-SVN: r193162

ipa-inline.c (compute_uninlined_call_time, [...]): New functions.

* ipa-inline.c (compute_uninlined_call_time,
compute_inlined_call_time): New functions.
(RELATIVE_TIME_BENEFIT_RANGE): New macro.
(relative_time_benefit): Rewrite.
(edge_badness): Rewrite path with guessed profile and estimated profile.
* ipa-inline.h (INLINE_HINT_declared_inline, INLINE_HINT_cross_module):
New hints.
(struct inline_summary): Add GROWTH filed.
* ipa-inline-analysis.c (dump_inline_hints): Update.
(reset_inline_summary): Update.
(dump_inline_summary): Update.
(will_be_nonconstant_predicate): Cleanup to use gimple_store_p and
gimple_assign_load_p predicates.
(estimate_node_size_and_time): Drop INLINE_HINT_declared_inline hint.
(simple_edge_hints): New function.
(do_estimate_edge_time): Return time of invocation of callee rather
than the time scaled by edge frequency; update hints code.
(do_estimate_edge_hints): Update.
(do_estimate_growth): Cleanup.

From-SVN: r193161

tree-ssa-loop-niter.c (find_loop_niter): Remove just_once_each_iteration_p.

* tree-ssa-loop-niter.c (find_loop_niter): Remove just_once_each_iteration_p.
(maybe_lower_iteration_bound): Initialize not_executed_last_iteration to  NULL
* tree-ssa-loop-ivcanon.c (canonicalize_loop_induction_variables): Skip
just_once_each_iteration_p; record estimated bound when loop has only one
likely exit; test just_once_each_iteration_p before IV canon itself.

From-SVN: r193159

re PR target/55194 (h8300 ICE during conftest in libgcc dwarf2out:7605)

PR target/55194
* dwarf2out.c (value_format) <case dw_val_class_high_pc>: Handle
also DWARF2_ADDR_SIZE 1 and 2.

From-SVN: r193158

ipa-inline.c (leaf_node_p): Rename to ...

* ipa-inline.c (leaf_node_p): Rename to ...
(num_calls) ... this one.
(want_early_inline_function_p): Allow smal growth on non-leafs.

From-SVN: r193157

re PR testsuite/51128 (New LTO failures)

PR testsuite/51128
* gcc.dg/torture/pr55018.c: Skip if -fno-fat-lto-objects was passed.

From-SVN: r193156

* gcc.dg/autopar/pr49960.c: Fix testcase.

From-SVN: r193155

* gcc.dg/tree-ssa/cunroll-9.c: Fix scan file name.

From-SVN: r193154

cunroll-9.c: Dump cunrolli details.

* gcc.dg/tree-ssa/cunroll-9.c: Dump cunrolli details.
Fix scan-tree-dump-times directive.

From-SVN: r193153