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

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

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

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

	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

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

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

	* g++.dg/torture/pr78750.C: New.

From-SVN: r243498

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

From-SVN: r243497

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

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

From-SVN: r243493

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

From-SVN: r243489

	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

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

From-SVN: r243487

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

From-SVN: r243486

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

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

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

	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

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

	* 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

	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

From-SVN: r243474

From-SVN: r243473

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

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

From-SVN: r243468

From-SVN: r243465

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

gcc/c-family/ChangeLog:

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

From-SVN: r243461

    
    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.  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

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

From-SVN: r243455

From-SVN: r243453

	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

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

    
    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

    
    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

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

From-SVN: r243443