re PR other/78252 (C++ demangler crashes with infinite recursion with lambda (auto))

libiberty/
PR c++/78252
* cp-demangle.c (struct d_print_info): Add is_lambda_arg field.
(d_print_init): Initialize it.
(d_print_comp_inner) <DEMANGLE_COMPONENT_TEMPLATE_PARAM>: Check
is_lambda_arg for auto.
<DEMANGLE_COMPONENT_REFERENCE,
DEMANGLE_COMPONENT_RVALUE_REFERENCE>: Skip smashing check when
is_lambda_arg.
<DEMANGLE_COMPONENT_LAMBDA>: Increment is_lambda_arg around arg
printing.
* testsuite/demangle-expected: Add lambda auto mangling cases.

gcc/testsuite/
PR c++/78252
* g++.dg/cpp1y/lambda-mangle-1.C: New.

From-SVN: r243566

re PR target/78738 (ICE in extract_insn, at recog.c:2311)

PR target/78738
* config/i386/i386.h (X87_ENABLE_ARITH): Also enable for
flag_unsafe_math_optimizations.
(X87_ENABLE_FLOAT): Ditto.

testsuite/ChangeLog:

PR target/78738
* gcc.target/i386/pr78738.c: New test.

From-SVN: r243559

[libstdc++][testsuite] XFAIL tests relying on long double-to-string conversions on broken newlib

    * lib/target-supports.exp
    (check_effective_target_newlib_broken_long_double_io): New check.
    (check_effective_target_frexpl): Likewise.

    * testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
    XFAIL run if newlib_broken_long_double_io.
    * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stod.cc:
    Likewise.
    * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stold.cc:
    Likewise.
    * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
    Likewise.

From-SVN: r243558

Remove stray character at end of dg-do directive

* testsuite/experimental/filesystem/operations/is_empty.cc:
Remove stray character at end of dg-do directive.

From-SVN: r243555

re PR middle-end/78716 (ICE in gimplify_va_arg_expr, at gimplify.c:12650 (i686-linux-gnu))

PR middle-end/78716
* gimplify.c (gimplify_va_arg_expr): Don't require ADDR_EXPR for
Case 1; check POINTER_TYPE_P instead.

* g++.dg/other/vararg-5.C: New.

From-SVN: r243553

Disable hwcaps on libgfortran

libgfortran:
* configure.ac: Call GCC_CHECK_LINKER_HWCAP.
* Makefile.am (libgfortran_la_LDFLAGS): Add HWCAP_LDFLAGS.
* aclocal.m4: Regenerate.
* configure: Regenerate.
* Makefile.in: Regenerate.

config:
* hwcaps.m4: New file.

libitm:
* acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Remove.
* aclocal.m4: Regenerate.
* configure.ac: Call GCC_CHECK_LINKER_HWCAP instead of
LIBITM_CHECK_LINKER_HWCAP.

From-SVN: r243552

re PR rtl-optimization/78669 (ICE: in combine_and_move_insns, at ira.c:3665 with -Os -fno-tree-ter -mavx512bw)

PR rtl-optimization/78669
* ira.c (combine_and_move_insns): When deleting an insn, clear the
replace flag for all used regs in that insn.

PR rtl-optimization/78669
* gcc.target/i386/pr78669.c: New test.

From-SVN: r243551

Remove stray character at end of dg-do directive

* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
Remove stray character at end of dg-do directive.

From-SVN: r243548

lib1funcs.S (__ashrdi3): Fix typo from r243545.

libgcc/
* config/avr/lib1funcs.S (__ashrdi3): Fix typo from r243545.

From-SVN: r243546

lib1funcs.S (__ashldi3): Use __tmp_reg__ to restore R16 instead of push + pop.

libgcc/
2016-12-12  George Spelvin  <linux@sciencehorizons.net>
* config/avr/lib1funcs.S (__ashldi3): Use __tmp_reg__ to restore
R16 instead of push + pop.
(__ashrdi3, __lshrdi3): Same. And use __zero_reg__ for signs.

From-SVN: r243545

Fix g++.dg/debug/dwarf2/typedef1.C

* g++.dg/debug/dwarf2/typedef1.C: Adjust pattern for last change.

From-SVN: r243544

MIPS: Upgrade to R2 for -mnan=2008 and -mabs=2008.

gcc/testsuite/

* gcc.target/mips/mips.exp (mips-dg-options): Upgrade to R2 for
-mnan=2008 and -mabs=2008.

From-SVN: r243542

Define arm_arch_core_flags in a single file

2016-12-12  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * config/arm/arm-opts.h: Move struct arm_arch_core_flag and
    arm_arch_core_flags to ...
    * common/config/arm/arm-common.c: There.

From-SVN: r243541

constraints.md (T): Use special memory constraint.

* config/sparc/constraints.md (T): Use special memory constraint.
(U): Minor tweak.
(W): Add TARGET_ARCH64 test.
* config/sparc/sparc.md (*movdi_insn_sp32): Replace 'W' with 'T'.
(*movdf_insn_sp32): Likewise.
(*mov<VM64:mode>_insn_sp32): Likewise.  Replace 'e' with 'f' in
conjunction with offsettable memory references.

From-SVN: r243540

invoke.texi: Correct capitalization of OpenMP.

* doc/invoke.texi: Correct capitalization of OpenMP.

From-SVN: r243539

nios2.c (nios2_emit_move_sequence): Call copy_rtx to avoid shared structure error.

2016-12-11  Sandra Loosemore  <sandra@codesourcery.com>

gcc/
* config/nios2/nios2.c (nios2_emit_move_sequence): Call copy_rtx
to avoid shared structure error.

From-SVN: r243538

Daily bump.

From-SVN: r243537

re PR target/78695 (ICE (segfault) on powerpc64le-linux-gnu)

[gcc]

2016-12-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR target/78695
* config/rs6000/rs6000.c (find_alignment_op): Discard from
consideration any artificial definition.

[gcc/testsuite]

2016-12-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR target/78695
* gcc.target/powerpc/swaps-stack-protector.c: New test.

From-SVN: r243534

[Darwin, configury] No longer expect to find cross-target headers on the host.

Earlier Darwin (esp. Darwin8 and Darwin9) had FAT libraries and suitable header
installations in /usr/include such that one could build a cross-toolchain
(including cross-arch) using a common sysroot (including / for “current” version).

However this is no longer true on a number of levels.  A vanilla Darwin system has
no headers installed in /usr and it's certainly not appropriate to try and find
headers/libs for (say) x86-64-darwinNN X powerpc-darwin in /usr on any Darwin NN > 10
(even Darwin10 is incomplete in that it omits the ppc64 multilib).  In the latter
example, the catch-all in the current configury to mean that
"foo-darwin" == “foo-version-on-this-system” breaks the cross case
—target=powerpc-apple-darwin —host=some-system-later-than-darwin10.

gcc/

2016-12-11  Iain Sandoe  <iain@codesourcery.com>

* configure.ac (CROSS directory tests): Remove the assumption that
Darwin hosts contain suitable target sysroots in "/".
* configure: Regenerate.

From-SVN: r243533

[Darwin, PPC] Fix PR71496 by marking pic base loads as non-copyable.

The Darwin pic base loads (and reloads for non-local-gotos) are not
validly copied (since the pic base label would be duplicated).  Thus,
mark the pic base {re-}loads as non-copyable.

gcc/

2016-12-11  Iain Sandoe  <iain@codesourcery.com>

PR rtl-optimization/71496
* config/rs6000/darwin.md (load_macho_picbase_si): Mark as non-
copyable.  (load_macho_picbase_di, reload_macho_picbase_si,
reload_macho_picbase_di): Likewise.

From-SVN: r243532

pa.c (pa_callee_copies): New function.

* config/pa/pa.c (pa_callee_copies): New function.
* config/pa/pa.opt (mcaller-copies): New option.
* doc/invoke.texi (mcaller-copies): Document option.

From-SVN: r243531

re PR target/70799 (STV pass does not convert DImode shifts)

PR target/70799
* config/i386/i386.c (dimode_scalar_to_vector_candidate_p)
<case ASHIFT, case LSHIFTRT>: Consider all constant shifts.
Add FIXME comment.
(dimode_scalar_chain::compute_convert_gain): Reduce gain for
constant shifts larger or equal than 32.

testsuite/ChangeLog:

PR target/70799
* gcc.target/i386/pr70799-3.c: New test.

From-SVN: r243530

re PR c++/78637 (ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in pop_namespace, at cp/name-lookup.c:3826))

/cp
2016-12-11  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/78637
* parser.c (cp_parser_namespace_definition): Increment
nested_definition_count only if push_namespace succeeds.

/testsuite
2016-12-11  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/78637
* g++.dg/parse/namespace14.C: New.

From-SVN: r243529

x86-64.h: Append --32 to the assembler options when -m16 is used on non-glibc systems as well.

* config/i386/x86-64.h: Append --32 to the assembler options when
-m16 is used on non-glibc systems as well.

From-SVN: r243528

re PR target/70118 (UBSan claims misaligned access in SSE instrinsics)

PR target/70118
* config/i386/mmintrin.h (__m64_u): New type
* config/i386/emmintrin.h (_mm_loadl_epi64, _mm_storel_epi64):
Make the allowed unaligned memory access explicit.

From-SVN: r243527

Daily bump.

From-SVN: r243523

re PR fortran/78226 (Fill out location information everywhere)

2016-12-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/78226
* error.c (gfc_warning_internal):  New function.
* frontend-passes.c (gfc_run_passes):  Call check_locus if
CHECKING_P is defined.
(check_locus_code):  New function.
(check_locus_expr):  New function.
(check_locus):  New function.
* gfortran.h:  Add prototype for gfc_warning_internal.

From-SVN: r243520

config.gcc (i386-*-netbsd*): Make i486 the default arch on NetBSD.

2016-12-10  Krister Walfridsson  <krister.walfridsson@gmail.com>

* config.gcc (i386-*-netbsd*): Make i486 the default arch on NetBSD.
Generally use cpu generic.

From-SVN: r243519

config.host (i[34567]86-*-netbsdelf*): Add i386/t-crtstuff to tmake_file.

2016-12-10  Krister Walfridsson  <krister.walfridsson@gmail.com>

* config.host (i[34567]86-*-netbsdelf*): Add i386/t-crtstuff to
tmake_file.

From-SVN: r243518

re PR fortran/78350 (ICE in gfc_code2string(): Bad code, at fortran/misc.c:193)

2016-12-10 Paul Thomas  <pault@gcc.gnu.org>

PR fortran/78350
* resolve.c (resolve_structure_cons): Remove the block that
tried to remove a charlen and rely on namespace cleanup.

From-SVN: r243517

re PR tree-optimization/78720 (Illegal instruction in generated code)

PR tree-optimization/78720
* match.pd (A < 0 ? C : 0): Only optimize for signed A.  If shift
is negative, sign extend to @1's type and than AND with C.

* gcc.c-torture/execute/pr78720.c: New test.

Co-Authored-By: Marc Glisse <marc.glisse@inria.fr>
From-SVN: r243516

re PR fortran/78758 (Warning: '__builtin_memcpy' ... overflows the destination for string assignment)

PR fortran/78758
* tree-object-size.c (compute_object_offset) <case ARRAY_REF>: Handle
non-zero low bound or non-standard element sizes.

* gfortran.dg/pr78758.f90: New test.
* gfortran.dg/pr38868.f: Remove again bogus warning.

From-SVN: r243515

re PR sanitizer/78708 ([ASAN][LTO] ICE in expand_ASAN_MARK, at internal-fn.c:380 - when compiling but not linking with ASAN)

PR sanitizer/78708
* lto-streamer-in.c (input_function): In addition to debug stmts
without -g, remove IFN_*SAN_* calls if corresponding flag_sanitize
bit is not enabled.

From-SVN: r243514

Daily bump.

From-SVN: r243513

re PR fortran/77903 ([F08] gfortran 6.1.0/7.0.0 accept invalid code with conflicting module/submodule interfaces)

2016-12-09  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/77903
* decl.c (get_proc_name): Use the symbol tlink field instead of
the typespec interface field.
(gfc_match_function_decl, gfc_match_submod_proc): Ditto.
* gfortran.h : Since the symbol tlink field is no longer used
by the frontend for change management, change the comment to
reflect its current uses.
* parse.c (get_modproc_result): Same as decl.c changes.
* resolve.c (resolve_fl_procedure): Ditto.

2016-12-09  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/77903
* gfortran.dg/submodule_20.f08: New test.

From-SVN: r243507

re PR testsuite/78740 (test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335)

2016-12-09  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR testsuite/78740
* gcc.target/powerpc/pr78691-ppc.c: Remove -m32.

From-SVN: r243506

rs6000-passes.def: New file.

2016-12-09  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

* config/rs6000/rs6000-passes.def: New file.
* config/rs6000/rs6000-protos.h: Declare make_pass_analyze_swaps.
* config/rs6000/rs6000.c (rs6000_option_override): Remove
registration of machine-specific passes.
(pass_analyze_swaps::clone): New function.
* config/rs6000/t-rs6000: Define PASSES_EXTRA.

From-SVN: r243504

fold-vec-add-7.c: Require effective target to support __int128.

2016-12-09  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

* gcc.target/powerpc/fold-vec-add-7.c: Require effective target to
support __int128.

From-SVN: r243503

Add missing part of entry.

From-SVN: r243502

re PR tree-optimization/78721 (ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in set_value_range, at tree-vrp.c:371)

gcc/testsuite/ChangeLog:

2016-12-09  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR ipa/78721
* gcc.dg/pr78721.c: New test.

gcc/ChangeLog:

2016-12-09  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR ipa/78721
* ipa-cp.c (propagate_vr_accross_jump_function): drop_tree_overflow
after fold_convert.

From-SVN: r243501

re PR target/72742 (ICE in extract_insn, at recog.c:2309 (error: unrecognizable insn) w/ -Os -mlra)

PR target/72742
* config/rs6000/rs6000.md (*and<mode>3_imm_mask_dot,
*and<mode>3_imm_mask_dot2): Add rs6000_is_valid_and_mask to insn
condition.

* gcc.c-torture/compile/pr72742.c: New test.

From-SVN: r243500

rs6000: clz/ctz/ffs improvement (PR78683)

On CPUs that implement popcnt[wd] but not cnttz[wd] we can do better for
the ctz sequences than we do today.

CL[TZ]_DEFINED_VALUE_AT_ZERO can return 2, since we always return the
same fixed value (only dependent on TARGET_* options).

PR target/78683
* config/rs6000/rs6000.h (CLZ_DEFINED_VALUE_AT_ZERO): Use
GET_MODE_BITSIZE.  Return 2.
(CTZ_DEFINED_VALUE_AT_ZERO): Use GET_MODE_BITSIZE.  Return 2.  Handle
TARGET_POPCNTD the same as TARGET_CTZ.
* config/rs6000/rs6000.md (ctz<mode>2): Reimplement.
(ffs<mode>2): Reimplement.

From-SVN: r243499

re PR middle-end/78750 (ICE in get_range_info, at tree-ssanames.c:375)

PR middle-end/78750
* builtins.c (check_sizes): Use POINTER_TYPE_P.

* g++.dg/torture/pr78750.C: New.

From-SVN: r243498

gcc/testsuite/ChangeLog:

on arm-unknown-linux-gnueabi (and likely other ILP32) targets.

From-SVN: r243497

PR78255: Make postreload aware of NO_FUNCTION_CSE

gcc/ChangeLog:
2016-12-09  Andre Vieira <andre.simoesdiasvieira@arm.com>

PR rtl-optimization/78255
* gcc/postreload.c (reload_cse_simplify): Do not CSE a function if
NO_FUNCTION_CSE is true.

gcc/testsuite/ChangeLog:
2016-12-09  Andre Vieira <andre.simoesdiasvieira@arm.com>

PR rtl-optimization/78255
* gcc.target/aarch64/pr78255.c: New.
* gcc.target/arm/pr78255-1.c: New.
* gcc.target/arm/pr78255-2.c: New.

From-SVN: r243494

dimode-1.c: Update syntax on scan-assembler strings

* gcc.target/powerpc/dimode-1.c: Update syntax on scan-assembler
strings
* gcc.target/powerpc/dimode-2.c: Likewise.

From-SVN: r243493

Fix std::variant for gnu-versioned--namespace build

* include/std/variant: Remove misplaced
_GLIBCXX_BEGIN_NAMESPACE_VERSION macro.

From-SVN: r243489

re PR ipa/78027 (ICE in new_oacc_loop_routine, at omp-low.c:19000)

PR ipa/78027

gcc/
* ipa-icf.c (sem_function::parse): Don't process functions with
oacc decl attributes, as they may be OpenACC routines.

gcc/testsuite/
* c-c++-common/goacc/acc-icf.c: New test.
* gfortran.dg/goacc/pr78027.f90: New test.

From-SVN: r243488

Prevent use of MEM_* attr accessor macros as lvalues

gcc/ChangeLog:
* rtl.h (get_mem_attrs): Add "const" qualifier to returned
pointer.

From-SVN: r243487

Add the test this time...

        PR target/78733
        * gcc.target/aarch64/pr78733.c: New test.

From-SVN: r243486

re PR fortran/61767 ([OOP] ICE in generate_finalization_wrapper at fortran/class.c:1491)

2016-12-09  Janus Weil  <janus@gcc.gnu.org>

PR fortran/61767
* class.c (has_finalizer_component): Fix this function to detect only
non-pointer non-allocatable components which have a finalizer.

2016-12-09  Janus Weil  <janus@gcc.gnu.org>

PR fortran/61767
* gfortran.dg/finalize_31.f90: New test.

From-SVN: r243483

re PR fortran/78505 ([F08] Coarray source allocation not synchronizing on oversubscribed cores)

gcc/fortran/ChangeLog:

2016-12-09  Andre Vehreschild  <vehre@gcc.gnu.org>

PR fortran/78505
* trans-stmt.c (gfc_trans_allocate): Add sync all after the execution
of the whole allocate-statement to adhere to the standard.

gcc/testsuite/ChangeLog:

2016-12-09  Andre Vehreschild  <vehre@gcc.gnu.org>

PR fortran/78505
* gfortran.dg/coarray_alloc_with_implicit_sync_1.f90: New test.

From-SVN: r243482

trans-array.c (gfc_array_deallocate): Remove wrapper.

gcc/fortran/ChangeLog:

2016-12-09  Andre Vehreschild  <vehre@gcc.gnu.org>

* trans-array.c (gfc_array_deallocate): Remove wrapper.
(gfc_trans_dealloc_allocated): Same.
(structure_alloc_comps): Restructure deallocation of (nested)
allocatable components.  Insert dealloc of sub-component into the block
guarded by the if != NULL for the component.
(gfc_trans_deferred_array): Use the almightly deallocate_with_status.
* trans-array.h: Remove prototypes.
* trans-expr.c (gfc_conv_procedure_call): Use the almighty deallocate_
with_status.
* trans-openmp.c (gfc_walk_alloc_comps): Likewise.
(gfc_omp_clause_assign_op): Likewise.
(gfc_omp_clause_dtor): Likewise.
* trans-stmt.c (gfc_trans_deallocate): Likewise.
* trans.c (gfc_deallocate_with_status): Allow deallocation of scalar
and arrays as well as coarrays.
(gfc_deallocate_scalar_with_status): Get the data member for coarrays
only when freeing an array with descriptor.  And set correct caf_mode
when freeing components of coarrays.
* trans.h: Change prototype of gfc_deallocate_with_status to allow
adding statements into the block guarded by the if (pointer != 0) and
supply a coarray handle.

gcc/testsuite/ChangeLog:

2016-12-09  Andre Vehreschild  <vehre@gcc.gnu.org>

* gfortran.dg/coarray_alloc_comp_3.f08: New test.
* gfortran.dg/coarray_alloc_comp_4.f08: New test.
* gfortran.dg/finalize_18.f90: Add count for additional guard against
accessing null-pointer.
* gfortran.dg/proc_ptr_comp_47.f90: New test.

From-SVN: r243480

re PR c++/78550 (bit field and std::initializer_list)

PR c++/78550
* convert.c (convert_to_integer_1): Maybe fold conversions to
integral types with fewer bits than its mode.

testsuite/
PR c++/78550
* g++.dg/cpp1y/pr78550.C: New.

From-SVN: r243479

re PR fortran/44265 (Link error with reference to parameter array in specification expression)

2016-12-09  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/44265
* gfortran.h : Add fn_result_spec bitfield to gfc_symbol.
* resolve.c (flag_fn_result_spec): New function.
(resolve_fntype): Call it for character result lengths.
* symbol.c (gfc_new_symbol): Set fn_result_spec to zero.
* trans-decl.c (gfc_sym_mangled_identifier): Include the
procedure name in the mangled name for symbols with the
fn_result_spec bit set.
(gfc_finish_var_decl): Mark the decls of these symbols
appropriately for the case where the function is external.
(gfc_get_symbol_decl): Mangle the name of these symbols.
(gfc_create_module_variable): Allow them through the assert.
(gfc_generate_function_code): Remove the assert before the
initialization of sym->tlink because the frontend no longer
uses this field.
* trans-expr.c (gfc_map_intrinsic_function): Add a case to
treat the LEN_TRIM intrinsic.
(gfc_trans_string_copy): Deal with Wstringop-overflow warning
that can occur with constant source lengths at -O3.

2016-12-09  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/44265
* gfortran.dg/char_result_14.f90: New test.
* gfortran.dg/char_result_15.f90: New test.

From-SVN: r243478

Escape non-printable chars in strings.

* tree-pretty-print.c (pretty_print_string): Escape non-printable
chars in strings.
* gcc.dg/tree-ssa/dump-3.c: New test.

From-SVN: r243477

re PR middle-end/78726 (Incorrect unsigned arithmetic optimization)

PR tree-optimization/78726
* tree-ssa-reassoc.c (make_new_ssa_for_def): Add OPCODE and OP
argument.  For lhs uses in debug stmts, don't replace lhs with
new_lhs, but with a debug temp set to new_lhs opcode op.
(make_new_ssa_for_all_defs): Add OPCODE argument, pass OPCODE and
OP down to make_new_ssa_for_def.
(zero_one_operation): Call make_new_ssa_for_all_defs even when
stmts_to_fix is empty, if *def has not changed yet.  Pass
OPCODE to make_new_ssa_for_all_defs.

* gcc.c-torture/execute/pr78726.c: New test.
* gcc.dg/guality/pr78726.c: New test.

From-SVN: r243476

* ChangeLog: Fix a couple of entries.

From-SVN: r243474

Daily bump.

From-SVN: r243473

PR c/77531 - __attribute__((alloc_size(1,2))) could also warn on multiplication overflow

PR c/77531 - __attribute__((alloc_size(1,2))) could also warn on multiplication overflow
PR c/78284 - warn on malloc with very large arguments

gcc/c-family/ChangeLog:

PR c/78284
* c.opt (-Walloc-zero, -Walloc-size-larger-than): New options.

gcc/ChangeLog:

PR c/78284
* builtin-attrs.def (ATTR_ALLOC_SIZE, ATTR_RETURNS_NONNULL): New
identifier tree nodes.
(ATTR_ALLOCA_SIZE_1_NOTHROW_LEAF_LIST): New attribute list.
(ATTR_MALLOC_SIZE_1_NOTHROW_LIST): Same.
(ATTR_MALLOC_SIZE_1_NOTHROW_LEAF_LIST): Same.
(ATTR_MALLOC_SIZE_1_2_NOTHROW_LEAF_LIST): Same.
(ATTR_ALLOC_SIZE_2_NOTHROW_LEAF_LIST): Same.
* builtins.c (expand_builtin_alloca): Call
maybe_warn_alloc_args_overflow.
* builtins.def (aligned_alloc, calloc, malloc, realloc):
Add attribute alloc_size.
(alloca): Add attribute alloc_size and returns_nonnull.
* calls.h (maybe_warn_alloc_args_overflow): Declare.
* calls.c (alloc_max_size, operand_signed_p): New functions.
(maybe_warn_alloc_args_overflow): Define.
(initialize_argument_information): Diagnose overflow in functions
declared with attaribute alloc_size.
* doc/invoke.texi (Warning Options): Document -Walloc-zero and
-Walloc-size-larger-than.

gcc/testsuite/ChangeLog:

PR c/78284
* gcc.dg/attr-alloc_size-3.c: New test.
* gcc.dg/attr-alloc_size-4.c: New test.
* gcc.dg/attr-alloc_size-5.c: New test.
* gcc.dg/attr-alloc_size-6.c: New test.
* gcc.dg/attr-alloc_size-7.c: New test.
* gcc.dg/attr-alloc_size-8.c: New test.
* gcc.dg/attr-alloc_size-9.c: New test.
* gcc/testsuite/gcc.dg/errno-1.c: Adjust.

From-SVN: r243470

parallel_algorithm_assert2.cc: Move dg-do run first.

        * testsuite/25_algorithms/headers/algorithm/
        parallel_algorithm_assert2.cc: Move dg-do run first.

From-SVN: r243468

* gcc.target/i386/pr78671.c: Require int128 effective target.

From-SVN: r243465

re PR fortran/65173 (ICE while compiling wrong code)

2016-12-07  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.h (gfc_namespace): Remove old_cl_list member.
* parse.c (use_modules, next_statement): old_cl_list is gone.
(clear_default_charlen): Remove no longer used function.
(reject_statement): Do not try ot clean up gfc_charlen structure(s)
that may have been added to a cl_list list.
* symbol.c (gfc_new_charlen): old_cl_list structure is gone.

2016-12-07  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.dg/misplaced_implicit_character.f90: Adjust errors.
* gfortran.dg/charlen_01.f90: New test.
* gfortran.dg/charlen_02.f90: Ditto.
* gfortran.dg/charlen_03.f90: Ditto.
* gfortran.dg/charlen_04.f90: Ditto.
* gfortran.dg/charlen_05.f90: Ditto.
* gfortran.dg/charlen_06.f90: Ditto.
* gfortran.dg/charlen_07.f90: Ditto.
* gfortran.dg/charlen_08.f90: Ditto.
* gfortran.dg/charlen_09.f90: Ditto.
* gfortran.dg/charlen_10.f90: Ditto.
* gfortran.dg/charlen_11.f90: Ditto.
* gfortran.dg/charlen_12.f90: Ditto.
* gfortran.dg/charlen_13.f90: Ditto.
* gfortran.dg/charlen_14.f90: Ditto.
* gfortran.dg/charlen_15.f90: Ditto.
* gfortran.dg/charlen_16.f90: Ditto.

From-SVN: r243463

re PR rtl-optimization/78671 (ICE: in extract_constrain_insn, at recog.c:2213 with -Og -march=skylake-avx512)

2016-12-08  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/78671
* lra-assign.c (lra-assigns.c): Check prohibited regs for an
allocno class.

2016-12-08  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/78671
* gcc.target/i386/pr78671.c: New.

From-SVN: r243462

PR c/78165 - avoid printing type suffix for constants in %E output

gcc/c-family/ChangeLog:

PR c/78165
           * c-pretty-print (pp_c_integer_constant): Avoid formatting type
             suffix.
gcc/testsuite/ChangeLog:

From-SVN: r243461

runtime: mark non-x86 aeshashbody parameters as unused

    Avoids warnings during the build.

    Reviewed-on: https://go-review.googlesource.com/34142

From-SVN: r243459

This patch fixes an issue in aarch64_classify_address.

This patch fixes an issue in aarch64_classify_address.  TImode and TFmode
can either use a 64-bit LDP/STP or 128-bit LDR/STR.  The addressing mode
must be carefully modelled as the intersection of both.  This is done for
the immediate offsets, however load_store_pair_p must be set as well to
avoid LDP with a PC-relative address if aarch64_pcrelative_literal_loads
is true.

    gcc/
PR target/78733
* config/aarch64/aarch64.c (aarch64_classify_address):
Set load_store_pair_p for TImode and TFmode.

    testsuite/
* gcc.target/aarch64/pr78733.c: New test.

From-SVN: r243456

i386.h (HARD_REGNO_NREGS): Use GENERAL_REGNO_P.

* gcc.target/i386/i386.h (HARD_REGNO_NREGS): Use GENERAL_REGNO_P.
(HARD_REGNO_NREGS_HAS_PADDING): Ditto.  Simplify macro.

From-SVN: r243455

* es.po: Update.

From-SVN: r243453

re PR c++/78551 (Internal compiler error with constexpr initialization of union)

PR c++/78551
* constexpr.c (extract_string_elt): New.  Broken out of ...
(cxx_eval_array_reference): ... here.  Call it.
(cxx_eval_store_expression): Convert init by STRING_CST into
CONSTRUCTOR, if needed.

PR c++/78551
* g++.dg/cpp1y/pr78551.C: New.

From-SVN: r243448

Introduce emit_status::ensure_regno_capacity

gcc/ChangeLog:
* emit-rtl.c (gen_reg_rtx): Move regno_pointer_align and
regno_reg_rtx resizing logic to...
(emit_status::ensure_regno_capacity): ...this new method,
and ensure that the buffers are large enough.
(init_emit): Allocate regno_reg_rtx using ggc_cleared_vec_alloc
rather than ggc_vec_alloc.
* function.h (emit_status::ensure_regno_capacity): New method.

From-SVN: r243447

runtime: copy memory hash code from Go 1.7

    Rewrite the AES hashing code from gc assembler to C code using
    intrinsics.  The resulting code generates the same hash code for the
    same input as the gc code--that doesn't matter as such, but testing it
    ensures that the C code does something useful.

    Also change mips64pe32le to mips64p32le in configure script--noticed
    during CL review.

    Reviewed-on: https://go-review.googlesource.com/34022

From-SVN: r243445

runtime: allocate _panic struct on heap

    The gc library allocates a _panic struct on the stack. This does not
    work for gccgo, because when a deferred function recovers the panic we
    unwind the stack up to that point so that returning from the function
    will work correctly.

    Allocating on the stack fine if the panic is not recovered, and it
    works fine if the panic is recovered by a function that
    returns. However, it fails if the panic is recovered by a function
    that itself panics, and if that second panic is then recovered by a
    function higher up on the stack. When we unwind the stack to that
    second panic, the g will wind up pointing at a panic farther down on
    the stack. Even then everything will often work fine, except when the
    deferred function catching the second panic makes a bunch of calls
    that use stack space before returning. In that case the code can
    overwrite the panic struct, which will then cause disaster when we
    remove the struct from the linked list, as the link field will be
    garbage. This case is rare enough that all the x86 tests were passing,
    but there was a failure on ppc64le.

    Before https://golang.org/cl/33414 we allocated the panic struct on
    the heap, so go back to doing that again.

    Fixes golang/go#18228.

    Reviewed-on: https://go-review.googlesource.com/34027

From-SVN: r243444

re PR libstdc++/78264 (ICE in build_noexcept_spec, at cp/except.c:1196)

PR libstdc++/78264
* include/bits/c++config (_GLIBCXX_NOEXCEPT_PARM): Turn _N into _NE.
(_GLIBCXX_NOEXCEPT_QUAL): Likewise.

From-SVN: r243443

compiler: make Slice_construction_expression::do_flatten idempotent

    Because of the way we handle call expressions with multiple results,
    it's possible for expressions to be flattened more than once.  In the
    case of Slice_construction_expression, allocating the slice storage
    multiple times caused a compiler crash as one of the
    Temporary_statement's wound up not getting a backend expression.

    Test case is https://golang.org/cl/34020.

    Reviewed-on: https://go-review.googlesource.com/34026

From-SVN: r243442

Enable -fsanitize-address-use-after-scope only if -fsanitize=address is enabled

2016-12-08  Dmitry Vyukov  <dvyukov@google.com>

* opts.c (finish_options): Enable
-fsanitize-address-use-after-scope only if -fsanitize=address is enabled
(not -fsanitize=kernel-address).
* doc/invoke.texi (-fsanitize=kernel-address):
Don't say that it enables -fsanitize-address-use-after-scope.

From-SVN: r243441

* es.po: Update.

From-SVN: r243439

Fix filesystem test that fails in debug mode

* testsuite/experimental/filesystem/path/construct/range.cc: Don't
use basic_string::front() when string might be empty.

From-SVN: r243438

Delete std::swap for debug mode array

* include/debug/array (swap): Add deleted overload.
* include/bits/stl_pair.h (swap): Remove redundant inline keyword
from deleted overload.
* include/bits/unique_ptr.h (swap): Likewise.
* include/std/array (swap): Likewise.
* include/std/optional (swap): Likewise.
* include/std/tuple (swap): Likewise.
* include/std/variant (swap): Likewise.
* testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
Adjust dg-error line numbers.
* testsuite/23_containers/array/tuple_interface/get_neg.cc: Likewise.
* testsuite/23_containers/array/tuple_interface/
tuple_element_debug_neg.cc: Likewise.
* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
Likewise.

From-SVN: r243437

PR71856 try to fix Parallel Mode assertions again

PR libstdc++/71856
* doc/xml/manual/using.xml: Document macro.
* include/bits/c++config [_GLIBCXX_DEBUG || _GLIBCXX_PARALLEL]
(__glibcxx_assert): Rename to __glibcxx_assert_impl.
[_GLIBCXX_DEBUG] (__glibcxx_assert): Expand to __glibcxx_assert_impl.
* include/parallel/base.h [_GLIBCXX_PARALLEL_ASSERTIONS]
(_GLIBCXX_PARALLEL_ASSERT): Expand to __glibcxx_assert_impl.
[!_GLIBCXX_PARALLEL_ASSERTIONS] (_GLIBCXX_PARALLEL_ASSERT): Define as
empty.
* testsuite/25_algorithms/headers/algorithm/
parallel_algorithm_assert2.cc: New test.

From-SVN: r243434

Add the missing ChangeLog entry for r243432

2016-12-08  Pierre-Marie de Rodat  <derodat@adacore.com>

PR debug/78112
* g++.dg/pr78112.C: Remove platform-dependent checks.
* g++.dg/pr78112-2.C: New testcase.

From-SVN: r243433

[PR78112] Remove platform-dependent checks in g++.dg/pr78112.C

... as there checks failed on many platforms. As a replacement, this
commit also adds a new testcase from source reduction. The hope is that
this new testcase will get a consistent output across all platforms.

gcc/testsuite/
PR debug/78112
* g++.dg/pr78112.C: Remove platform-dependent checks.
* g++.dg/pr78112-2.C: New testcase.

From-SVN: r243432

re PR middle-end/78684 (ICE in create_intersect_range_checks_index, at tree-vect-loop-manip.c:2074)

PR middle-end/78684
* tree-vect-loop-manip.c (create_intersect_range_checks_index): Check
sign bit for index step of data reference.
gcc/testsuite
PR middle-end/78684
* g++.dg/torture/pr78684.C: New test.

From-SVN: r243431

Fix failing poly64 tests on ARM
2016-12-08  Christophe Lyon  <christophe.lyon@linaro.org>

* gcc.target/aarch64/advsimd-intrinsics/arm-neon-ref.h
(CHECK_CRYPTO): Remove.
(expected_poly64x1_t, expected_poly64x2_t): Remove

From-SVN: r243430

P0003R5 - removal of dynamic exception specification from C++17

P0003R5 - removal of dynamic exception specification from C++17
* parser.c (cp_parser_exception_specification_opt): For C++17
error out on throw ( type-id-list ), for C++11 and C++14 issue
-Wdeprecated warning on it.  Formatting fix.  Treat throw()
in C++17 as noexcept(true).

* g++.dg/compat/eh/ctor1.h: Adjust for deprecation of
throw (type-id-list) in C++11 and C++14 and removal in C++17.
* g++.dg/compat/eh/ctor1_y.C: Likewise.
* g++.dg/compat/eh/new1_x.C: Likewise.
* g++.dg/compat/eh/new1_y.C: Likewise.
* g++.dg/compat/eh/spec3_x.C: Likewise.
* g++.dg/compat/eh/spec3_y.C: Likewise.
* g++.dg/compat/eh/template1.h: Likewise.
* g++.dg/compat/eh/template1_y.C: Likewise.
* g++.dg/compat/eh/unexpected1_x.C: Likewise.
* g++.dg/compat/eh/unexpected1_y.C: Likewise.
* g++.dg/cpp0x/auto9.C: Likewise.
* g++.dg/cpp0x/defaulted23.C: Likewise.
* g++.dg/cpp0x/error5.C: Likewise.
* g++.dg/cpp0x/lambda/lambda-eh2.C: Likewise.
* g++.dg/cpp0x/noexcept02.C: Likewise.
* g++.dg/cpp0x/noexcept07.C: Likewise.
* g++.dg/cpp0x/noexcept08.C: Likewise.
* g++.dg/cpp0x/noexcept19.C: Likewise.
* g++.dg/cpp0x/variadic73.C: Likewise.
* g++.dg/cpp0x/variadic-throw.C: Likewise.
* g++.dg/cpp1z/noexcept-type1.C: Likewise.
* g++.dg/eh/async-unwind2.C: Likewise.
* g++.dg/eh/cond4.C: Likewise.
* g++.dg/eh/delete1.C: Likewise.
* g++.dg/eh/ehopt1.C: Likewise.
* g++.dg/eh/forced3.C: Likewise.
* g++.dg/eh/forced4.C: Likewise.
* g++.dg/eh/init-temp2.C: Likewise.
* g++.dg/eh/pr38662.C: Likewise.
* g++.dg/eh/pr41819.C: Likewise.
* g++.dg/eh/shadow1.C: Likewise.
* g++.dg/eh/spec2.C: Likewise.
* g++.dg/eh/spec3.C: Likewise.
* g++.dg/eh/spec5.C: Likewise.
* g++.dg/eh/spec6.C: Likewise.
* g++.dg/eh/spec7.C: Likewise.
* g++.dg/eh/spec8.C: Likewise.
* g++.dg/eh/spec9.C: Likewise.
* g++.dg/eh/template1.C: Likewise.
* g++.dg/eh/unexpected1.C: Likewise.
* g++.dg/ext/has_nothrow_assign.C: Likewise.
* g++.dg/ext/has_nothrow_constructor.C: Likewise.
* g++.dg/ext/has_nothrow_copy-1.C: Likewise.
* g++.dg/ext/has_nothrow_copy-2.C: Likewise.
* g++.dg/ext/has_nothrow_copy-4.C: Likewise.
* g++.dg/ext/has_nothrow_copy-5.C: Likewise.
* g++.dg/ext/has_nothrow_copy-6.C: Likewise.
* g++.dg/ext/has_nothrow_copy-7.C: Likewise.
* g++.dg/gcov/gcov-7.C: Likewise.
* g++.dg/init/new13.C: Likewise.
* g++.dg/init/new25.C: Likewise.
* g++.dg/lookup/exception1.C: Likewise.
* g++.dg/opt/noreturn-1.C: Likewise.
* g++.dg/other/error3.C: Likewise.
* g++.dg/rtti/crash3.C: Likewise.
* g++.dg/template/eh2.C: Likewise.
* g++.dg/template/error36.C: Likewise.
* g++.dg/tm/pr46567.C: Likewise.
* g++.dg/tm/pr47340.C: Likewise.
* g++.dg/torture/pr46364.C: Likewise.
* g++.dg/torture/pr49394.C: Likewise.
* g++.dg/torture/pr52918-1.C: Likewise.
* g++.dg/torture/pr57190.C: Likewise.
* g++.dg/torture/stackalign/eh-alloca-1.C: Likewise.
* g++.dg/torture/stackalign/eh-fastcall-1.C: Likewise.
* g++.dg/torture/stackalign/eh-global-1.C: Likewise.
* g++.dg/torture/stackalign/eh-inline-1.C: Likewise.
* g++.dg/torture/stackalign/eh-inline-2.C: Likewise.
* g++.dg/torture/stackalign/eh-thiscall-1.C: Likewise.
* g++.dg/torture/stackalign/eh-vararg-1.C: Likewise.
* g++.dg/torture/stackalign/eh-vararg-2.C: Likewise.
* g++.dg/tree-ssa/pr45605.C: Likewise.
* g++.dg/warn/Wreturn-type-3.C: Likewise.
* g++.old-deja/g++.eh/badalloc1.C: Likewise.
* g++.old-deja/g++.eh/cleanup2.C: Likewise.
* g++.old-deja/g++.eh/spec1.C: Likewise.
* g++.old-deja/g++.eh/spec2.C: Likewise.
* g++.old-deja/g++.eh/spec3.C: Likewise.
* g++.old-deja/g++.eh/spec4.C: Likewise.
* g++.old-deja/g++.eh/spec6.C: Likewise.
* g++.old-deja/g++.eh/throw1.C: Likewise.
* g++.old-deja/g++.eh/throw2.C: Likewise.
* g++.old-deja/g++.eh/tmpl1.C: Likewise.
* g++.old-deja/g++.eh/tmpl3.C: Likewise.
* g++.old-deja/g++.mike/eh15.C: Likewise.
* g++.old-deja/g++.mike/eh25.C: Likewise.
* g++.old-deja/g++.mike/eh33.C: Likewise.
* g++.old-deja/g++.mike/eh34.C: Likewise.
* g++.old-deja/g++.mike/eh50.C: Likewise.
* g++.old-deja/g++.mike/eh51.C: Likewise.
* g++.old-deja/g++.mike/eh55.C: Likewise.
* g++.old-deja/g++.mike/p10416.C: Likewise.
* g++.old-deja/g++.other/crash28.C: Likewise.
* g++.old-deja/g++.other/crash30.C: Likewise.
* g++.old-deja/g++.other/new7.C: Likewise.
* g++.old-deja/g++.pt/ehspec1.C: Likewise.
* g++.old-deja/g++.robertl/eb123.C: Likewise.

* testsuite/util/testsuite_new_operators.h: Include testsuite_hooks.h.
(operator new): Use THROW macro.

From-SVN: r243429

aarch64.c (aarch64_load_symref_appropriately): Handle SYMBOL_SMALL_TLSGD for ILP32.

2016-12-08  Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

gcc
* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
Handle SYMBOL_SMALL_TLSGD for ILP32.
* config/aarch64/aarch64.md : tlsgd_small modified into
tlsgd_small_<mode> to support SImode and DImode.
*tlsgd_small modified into *tlsgd_small_<mode> to support SImode and
DImode.

gcc/testsuite
* gcc.target/aarch64/pr78382.c : New Testcase.

From-SVN: r243428

aarch64.c (aarch64_load_symref_appropriately): Access the lower part of RTX appropriately.

2016-12-08  Andrew Pinski  <apinski@cavium.com>

gcc
* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
Access the lower part of RTX appropriately.

gcc/testsuite
* gcc.target/aarch64/pr71112.c : New Testcase.

From-SVN: r243427

Split class rtx_reader into md_reader vs rtx_reader

This moves read_rtx and friends into rtx_reader, and splits
rtx_reader into two classes:

class md_reader: has responsibility for reading chars, managing
include files, top-level directives etc.  It is the read-md.o part.

class rtx_reader, a subclass, has the code for reading hierarchical
rtx expressions using the format codes.   It is the read-rtl.o part.

This split is needed by a followup patch, which converts
read_rtx_operand to a virtual function of rtx_reader.  To do this,
instances of rtx_reader (or its subclasses) need a vtable, which
needs to include a ptr to the code in read-rtl.o.  Splitting it up
allows the gen* tools that currently purely use read-md.o to continue
to do so.

gcc/ChangeLog:
* genpreds.c (write_tm_constrs_h): Update for renaming of
rtx_reader_ptr to md_reader_ptr.
(write_tm_preds_h): Likewise.
(write_insn_preds_c): Likewise.
* read-md.c (rtx_reader_ptr): Rename to...
(md_reader_ptr): ...this, and convert from an
rtx_reader * to a md_reader *.
(rtx_reader::set_md_ptr_loc): Rename to...
(md_reader::set_md_ptr_loc): ...this.
(rtx_reader::get_md_ptr_loc): Rename to...
(md_reader::get_md_ptr_loc): ...this.
(rtx_reader::copy_md_ptr_loc): Rename to...
(md_reader::copy_md_ptr_loc): ...this.
(rtx_reader::fprint_md_ptr_loc): Rename to...
(md_reader::fprint_md_ptr_loc): ...this.
(rtx_reader::print_md_ptr_loc): Rename to...
(md_reader::print_md_ptr_loc): ...this.
(rtx_reader::join_c_conditions): Rename to...
(md_reader::join_c_conditions): ...this.
(rtx_reader::fprint_c_condition): ...this.
(rtx_reader::print_c_condition): Rename to...
(md_reader::print_c_condition): ...this.
(fatal_with_file_and_line):  Update for renaming of
rtx_reader_ptr to md_reader_ptr.
(rtx_reader::require_char): Rename to...
(md_reader::require_char): ...this.
(rtx_reader::require_char_ws): Rename to...
(md_reader::require_char_ws): ...this.
(rtx_reader::require_word_ws): Rename to...
(md_reader::require_word_ws): ...this.
(rtx_reader::read_char): Rename to...
(md_reader::read_char): ...this.
(rtx_reader::unread_char): Rename to...
(md_reader::unread_char): ...this.
(rtx_reader::peek_char): Rename to...
(md_reader::peek_char): ...this.
(rtx_reader::read_name): Rename to...
(md_reader::read_name): ...this.
(rtx_reader::read_escape): Rename to...
(md_reader::read_escape): ...this.
(rtx_reader::read_quoted_string): Rename to...
(md_reader::read_quoted_string): ...this.
(rtx_reader::read_braced_string): Rename to...
(md_reader::read_braced_string): ...this.
(rtx_reader::read_string): Rename to...
(md_reader::read_string): ...this.
(rtx_reader::read_skip_construct): Rename to...
(md_reader::read_skip_construct): ...this.
(rtx_reader::handle_constants): Rename to...
(md_reader::handle_constants): ...this.
(rtx_reader::traverse_md_constants): Rename to...
(md_reader::traverse_md_constants): ...this.
(rtx_reader::handle_enum): Rename to...
(md_reader::handle_enum): ...this.
(rtx_reader::lookup_enum_type): Rename to...
(md_reader::lookup_enum_type): ...this.
(rtx_reader::traverse_enum_types): Rename to...
(md_reader::traverse_enum_types): ...this.
(rtx_reader::rtx_reader): Rename to...
(md_reader::md_reader): ...this, and update for renaming of
rtx_reader_ptr to md_reader_ptr.
(rtx_reader::~rtx_reader): Rename to...
(md_reader::~md_reader): ...this, and update for renaming of
rtx_reader_ptr to md_reader_ptr.
(rtx_reader::handle_include): Rename to...
(md_reader::handle_include): ...this.
(rtx_reader::handle_file): Rename to...
(md_reader::handle_file): ...this.
(rtx_reader::handle_toplevel_file): Rename to...
(md_reader::handle_toplevel_file): ...this.
(rtx_reader::get_current_location): Rename to...
(md_reader::get_current_location): ...this.
(rtx_reader::add_include_path): Rename to...
(md_reader::add_include_path): ...this.
(rtx_reader::read_md_files): Rename to...
(md_reader::read_md_files): ...this.
* read-md.h (class rtx_reader): Split into...
(class md_reader): ...new class.
(rtx_reader_ptr): Rename to...
(md_reader_ptr): ...this, and convert to a md_reader *.
(class noop_reader): Update base class to be md_reader.
(class rtx_reader): Reintroduce as a subclass of md_reader.
(rtx_reader_ptr): Reintroduce as a rtx_reader *.
(read_char): Update for renaming of rtx_reader_ptr to
md_reader_ptr.
(unread_char): Likewise.
* read-rtl.c (rtx_reader_ptr): New global.
(rtx_reader::apply_iterator_to_string): Rename to...
(md_reader::apply_iterator_to_string): ...this.
(rtx_reader::copy_rtx_for_iterators): Rename to...
(md_reader::copy_rtx_for_iterators): ...this.
(rtx_reader::read_conditions): Rename to...
(md_reader::read_conditions): ...this.
(rtx_reader::record_potential_iterator_use): Rename to...
(md_reader::record_potential_iterator_use): ...this.
(rtx_reader::read_mapping): Rename to...
(md_reader::read_mapping): ...this.
(rtx_reader::read_rtx): Use rtx_reader_ptr when calling
read_rtx_code.
(rtx_reader::read_rtx_operand): Use get_string_obstack rather
than directly accessing m_string_obstack.
(rtx_reader::rtx_reader): New ctor.
(rtx_reader::~rtx_reader): New dtor.

From-SVN: r243426

runtime: remove some unused variables/declarations from runtime.h

    Small patch from Eric Botcazou.

    Reviewed-on: https://go-review.googlesource.com/34029

From-SVN: r243424

Daily bump.

From-SVN: r243423

simplify-rtx: Fix the last fix (PR78638)

I managed to get the last obvious fix wrong: mode is M1, GET_MODE (op)
is M2.

[ adding missing PR marker ]

PR rtl-optimization/78638
* simplify-rtx.c (simplify_truncation): M2 is not mode, it is
GET_MODE (op).  Fix this.

From-SVN: r243420

PR c/53562 - Add -Werror= support for -D_FORTIFY_SOURCE / __builtin___memcpy_chk

PR c/53562 - Add -Werror= support for -D_FORTIFY_SOURCE / __builtin___memcpy_chk
PR middle-end/77784 - duplicate warning for snprintf when n > object size
PR middle-end/78149 - missing warning on strncpy buffer overflow due to an excessive bound
PR middle-end/78138 - missing warnings on buffer overflow with non-constant source length

gcc/c-family/ChangeLog:

PR c/53562
PR middle-end/77784
PR middle-end/78149
PR middle-end/78138
* c.opt (-Wstringop-overflow): New option.

gcc/ChangeLog:

PR middle-end/77784
PR middle-end/78149
PR middle-end/78138

* builtins.c (expand_builtin_strcat, expand_builtin_strncat): New
functions.
(compute_dest_size, get_size_range, check_sizes, check_strncat_sizes)
(check_memop_sizes): Same.
(expand_builtin_memcpy): Call check memop_sizes.
(expand_builtin_mempcpy): Same.
(expand_builtin_memset): Same,
(expand_builtin_bzero): Same.
(expand_builtin_memory_chk): Call check_sizes.
(expand_builtin_strcpy): Same.
(expand_builtin_strncpy): Same.
(maybe_emit_sprintf_chk_warning): Same.
(expand_builtin): Handle strcat and strncat.
(fini_object_sizes): Reset pointers.
(compute_object_size): New function.
* gimple-ssa-sprintf.c (pass_sprintf_length::handle_gimple_call):
Avoid issuing warnings also issued during built-in expansion.
* doc/invoke.texi (Warning Options): Document -Wstringop-overflow.

gcc/testsuite/ChangeLog:

PR middle-end/77784
PR middle-end/78149
PR middle-end/78138

* c-c++-common/Wsizeof-pointer-memaccess2.c: Adjust expected diagnostic.
* g++.dg/ext/builtin-object-size3.C (bar): Same.
* g++.dg/ext/strncpy-chk1.C: Same.
* g++.dg/opt/memcpy1.C: Same.
* g++.dg/torture/Wsizeof-pointer-memaccess1.C: Same.
* gcc.c-torture/compile/pr55569.c: Disable -Wstringop-overflow.
* gcc.dg/Wobjsize-1.c: Adjust expected diagnostic.
* gcc.dg/attr-alloc_size.c: Same.
* gcc.dg/builtin-stringop-chk-1.c: Adjust expected diagnostic.
* gcc.dg/builtin-stringop-chk-2.c: Same.
* gcc.dg/builtin-stringop-chk-4.c: New test.
* gcc.dg/builtin-strncat-chk-1.c: Adjust expected diagnostic.
* gcc.dg/memcpy-2.c: Same.
* gcc.dg/pr40340-1.c: Same.
* gcc.dg/pr40340-2.c (main): Same.
* gcc.dg/pr40340-5.c (main): Same.
* gcc.dg/torture/Wsizeof-pointer-memaccess1.c: Same.
* gcc.dg/torture/pr71132.c: Disable -Wstringop-overflow.
* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Adjust text of expected
warning.
* gfortran.dg/char_length_3.f90: Prune expected warnings.
* gfortran.dg/pr38868.f: Add expected warnings.

From-SVN: r243419

re PR target/72717 (ICE: in emit_move_insn, at expr.c:3693 with vector shift @ powerpc64le)

[gcc]
2016-12-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/72717
* config/rs6000/rs6000.c (rs6000_expand_vector_init): If the
V2DImode elements are SUBREG's convert the result into DImode
rather than failing in emit_move_insn.

[gcc/testsuite]
2016-12-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/72717
* gcc.target/powerpc/pr72717.c: New test.

From-SVN: r243418

sync config/* from binutils

* elf.m4: Revert 2016-06-21 change.
* picflag.m4: Likewise.  Revert 2016-04-30 change too.
* override.m4 (AC_PROG_LEX): Import 2016-01-18 binutils fix
for PR binutils/19481.

From-SVN: r243417

2016-12-07  François Dumont  <fdumont@gcc.gnu.org>

* include/bits/stl_tree.h
(_Rb_tree<>::_M_copy(_Const_Link_type, _Base_ptr)): Delete.
(_Rb_tree<>::_M_copy(const _Rb_tree&, _NodeGen&)): New.
(_Rb_tree<>::_M_copy(const _Rb_tree&)): New, use latter.
(_Rb_tree<>(const _Rb_tree&): Use latter.
(_Rb_tree<>(const _Rb_tree&, const allocator_type&)): Likewise.
(_Rb_tree<>::_M_move_data(_Rb_tree&, false_type)): Likewise.
(_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Likewise.
(_Rb_tree<>::operator=(const _Rb_tree&)): Likewise.

From-SVN: r243380

stl_map.h (map(const map&)): Make default.

2016-12-07  François Dumont  <fdumont@gcc.gnu.org>

* include/bits/stl_map.h (map(const map&)): Make default.
(map(map&&)): Likewise.
(~map()): Likewise.
(operator=(const map&)): Likewise.
* include/bits/stl_multimap.h (multimap(const multimap&)): Make default.
(multimap(multimap&&)): Likewise.
(~multimap()): Likewise.
(operator=(const multimap&)): Likewise.
* include/bits/stl_set.h (set(const set&)): Make default.
(set(set&&)): Likewise.
(~set()): Likewise.
(operator=(const set&)): Likewise.
* include/bits/stl_multiset.h (multiset(const multiset&)): Make default.
(multiset(multiset&&)): Likewise.
(~multiset()): Likewise.
(operator=(const multiset&)): Likewise.
* include/bits/stl_tree.h (_Rb_tree_key_compare<>): New.
(_Rb_tree_header): New.
(_Rb_tree_impl): Inherit from latters.
(_Rb_tree_impl()): Make default.
(_Rb_tree_impl(const _Rb_tree_impl&)): New.
(_Rb_tree<>(const _Rb_tree&): Use latter.
(_Rb_tree_impl(_Rb_tree_impl&&)): New, default.
(_Rb_tree_impl(const _Key_compare&, const _Node_allocator&)): Delete.
(_Rb_tree_impl::_M_reset): Move...
(_Rb_tree_header::_M_reset): ...here.
(_Rb_tree_impl::_M_initialize): Delete.
(_Rb_tree(_Rb_tree&&)): Make default.
(_Rb_tree_header::_M_move_data(_Rb_tree_header&)): New.
(_Rb_tree<>::_M_move_data(_Rb_tree&, true_type)): Use latter.
(_Rb_tree<>(_Rb_tree&&)): Make default.

From-SVN: r243379

builtins.c (fold_builtin_strstr): Removed.

* builtins.c (fold_builtin_strstr): Removed.
(fold_builtin_2): Don't call fold_builtin_strstr.
* gimple-fold.c (gimple_fold_builtin_strchr): Check is_strrchr
earlier in the strrchr (x, 0) -> strchr (x, 0) optimization.
(gimple_fold_builtin_strstr): New function.
(gimple_fold_builtin): Call it.
* fold-const-call.c (fold_const_call): Handle CFN_BUILT_IN_STRSTR.

* gcc.dg/builtin-strstr-1.c: New test.
* g++.dg/cpp0x/constexpr-strstr.C: New test.

From-SVN: r243378

re PR tree-optimization/78692 (ICE (segfault))

PR c++/78692
* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Set lhs
var to lhs of new_stmt right before noreturn handling rather than to
lhs of e->call_stmt early.

* g++.dg/torture/pr78692.C: New test.

From-SVN: r243377

Add some functions for use by the RTL frontend.

gcc/ChangeLog:
* read-md.c (rtx_reader::require_char): New method.
(require_char_ws): Convert from function to...
(rtx_reader::require_char_ws): ...method.
(rtx_reader::require_word_ws): New method.
* read-md.h (rtx_reader::require_char): New method decl.
(require_char_ws): Remove global decl in favor of...
(rtx_reader::require_char_ws): ...new method decl.
(rtx_reader::require_word_ws): New method decl.
(rtx_reader::peek_char): New method decl.

From-SVN: r243376

re PR rtl-optimization/78617 (LRA clobbers live register during rematerialization)

2016-12-07  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    PR rtl-optimization/78617
    * lra-remat.c (do_remat): Initialize live_hard_regs from live in
    registers, also setting hard registers mapped to pseudo registers.

    gcc/testsuite/
    PR rtl-optimization/78617
    * gcc.c-torture/execute/pr78617.c: New test.

From-SVN: r243374