2012-07-26  Segher Boessenkool  <segher@kernel.crashing.org>

gcc/
        * common/config/rs6000/rs6000-common.c (rs6000_handle_option):
        Delete code for -mno-power, -mpower, and -mpower2.
        * config/rs6000/aix43.h (NON_POWERPC_MASKS): Delete.
        (SUBTARGET_OVERRIDE_OPTIONS): Delete check for POWER together
        with -maix64.
        (ASM_CPU_SPEC): Delete support for POWER and POWER2.
        * config/rs6000/aix51.h (NON_POWERPC_MASKS): Delete.
        (SUBTARGET_OVERRIDE_OPTIONS): Delete check for POWER together
        with -maix64.
        (ASM_CPU_SPEC): Delete support for POWER and POWER2.
        * config/rs6000/aix52.h (NON_POWERPC_MASKS): Delete.
        (SUBTARGET_OVERRIDE_OPTIONS): Delete check for POWER together
        with -maix64.
        (TARGET_POWER): Delete.
        * config/rs6000/aix53.h (NON_POWERPC_MASKS): Delete.
        (SUBTARGET_OVERRIDE_OPTIONS): Delete check for POWER together
        with -maix64.
        (TARGET_POWER): Delete.
        * config/rs6000/aix61.h (NON_POWERPC_MASKS): Delete.
        (SUBTARGET_OVERRIDE_OPTIONS): Delete check for POWER together
        with -maix64.
        (TARGET_POWER): Delete.
        * config/rs6000/darwin.h (TARGET_POWER): Delete.
        * config/rs6000/driver-rs6000.c (struct asm_names): Delete
        support for -mpower, -mpower2, and -mno-power.
        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros):
        Likewise.
        (rs6000_cpu_cpp_builtins): Likewise.
        * config/rs6000/rs6000-cpus.def: Likewise.
        * config/rs6000/rs6000-tables.opt: Regenerate.
        * config/rs6000/rs6000.c (POWER_MASKS): Delete.
        (rs6000_option_override_internal): Adjust.
        (rs6000_conditional_register_usage): Adjust.
        (rs6000_emit_move): Adjust.
        (rs6000_common_init_builtins): Adjust.
        (rs6000_init_libfuncs): Adjust.
        (rs6000_output_function_prologue): Adjust.
        (rs6000_adjust_cost): Adjust.
        (struct rs6000_opt_masks): Delete MASK_POWER and MASK_POWER2.
        * config/rs6000/rs6000.h (ASM_CPU_SPEC): Delete support for
        POWER and POWER2.
        (TARGET_DEFAULT): Adjust.
        (PROCESSOR_POWER): Delete.
        (SHIFT_COUNT_TRUNCATED): Adjust.
        * config/rs6000/rs6000.md (extendqisi2): Delete POWER support.
        (extendqisi2_power): Delete.
        (extendqisi2_no_power): Adjust.
        (extendqihi2, extendqihi2_power, extendqihi2_no_power):
        Likewise.
        (sminsi3, smaxsi3, uminsi3, umaxsi3): Adjust.
        (anonymous doz insn patterns): Delete.
        (abssi2): Adjust.
        (abssi2_power): Delete.
        (abssi2_nopower): Adjust.
        (nabs_power, nabs_nopower): Likewise.
        (mulsi3, mulsi3_mq, mulsi3_no_mq, mulsi3_mq_internal1):
        Likewise.  Delete anonymous post-reload splitter.
        (mulsi3_no_mq_internal1): rename to...
        (mulsi3_internal1): New define_insn.
        (mulsi3_mq_internal2, mulsi3_no_mq_internal2, mulsi3_internal2):
        Likewise.
        (divmodsi4, divmodsi4_internal, udiv<mode>3, udivsi3_mq,
        udivsi3_no_mq, udivsi3, div<mode>3, divsi3_mq, div<mode>3_no_mq,
        udivmodsi4_normal, udivmodsi4_tests, udivmodsi4): Likewise.
        (mulh_call, mull_call, divss_call, divus_call, quoss_call,
        quous_call): Likewise.
        (maskir_internal1, maskir_internal2, maskir_internal3,
        maskir_internal4, maskir_internal5, maskir_internal6,
        maskir_internal7, maskir_internal8): Delete.
        (ashlsi3, ashlsi3_power, ashlsi3_no_power): Adjust.
        (anonymous sl insn patterns): Delete.
        (lshrsi3, lshrsi3_power, lshrsi3_no_power): Adjust.
        (lshrsi3_64): Adjust.
        (anonymous sr insn patterns): Delete.
        (anonymous rrib insn patterns): Delete.
        (ashrsi3, ashrsi3_power, ashrsi3_no_power): Adjust.
        (anonymous sra insn patterns): Delete.
        (sqrtsf2, sqrtdf2, sqrtdf2_fpr): Adjust.
        (fix_trunc<mode>si2, fix_trunc<mode>si2_internal,
        fctiwz_<mode>): Adjust.
        (mulsidi3, mulsidi3_mq, mulsidi3_no_mq, umulsidi3, umulsidi3_mq,
        umulsidi3_no_mq, smulsi3_highpart, smulsi3_highpart_mq,
        smulsi3_highpart_no_mq, umulsi3_highpart, umulsi3_highpart_mq,
        umulsi3_highpart_no_mq): Adjust.
        (ashldi3_power, lshrdi3_power, ashrdi3_power): Delete.
        (ashrdi3_no_power, ashldi3, ashldi3_internal1,
        lshrdi3_internal1): Adjust.
        (fix_trunctfsi2, fix_trunctfsi2_fprs): Adjust.
        (movti_power): Delete.
        (movti_string): Adjust.
        (stmsi8, stmsi7, stmsi6, stmsi5, stmsi4, stmsi3): Adjust.
        (stmsi8_power, stmsi7_power, stmsi6_power, stmsi5_power,
        stmsi4_power, stmsi3_power): Delete.
        (anonymous movmemsi insn patterns): Adjust.
        (lfq_power2, stfq_power2): Delete.
        (eq<mode>, eq<mode>_compare): Adjust.
        (eqsi_power): Delete.
        (ne0si): Adjust.
        (anonymous le, lt, ge, gt insn patterns): Delete.
        * config/rs6000/rs6000.opt (mpower, mno-power, mpower2): Delete.
        * config/rs6000/sysv4.h (TARGET_POWER): Delete.
        * config/rs6000/t-aix43 (MULTILIB_OPTIONS, MULTILIB_DIRNAMES,
        MULTILIB_MATCHES): Adjust.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Delete
        -mpower, -mno-power, -mpower2, -mno-power2 documentation.
        Delete -mcpu=power and -mcpu=power2 documentation.

gcc/testsuite/

        * gcc.target/powerpc/rs6000-power2-1.c: Delete.
        * gcc.target/powerpc/rs6000-power2-2.c: Delete.

From-SVN: r189908

2012-07-27  Segher Boessenkool  <segher@kernel.crashing.org>

gcc/
        * config/rs6000/601.md: New file.
        * config/rs6000/aix43.h (ASM_CPU_SPEC): Delete support for
        RIOS CPUs.
        * config/rs6000/aix51.h (ASM_CPU_SPEC): Likewise.
        * config/rs6000/driver-rs6000.c (detect_processor_aix,
        struct asm_names): Likewise.
        * config/rs6000/rios1.md: Delete file.
        * config/rs6000/rios2.md: Delete file.
        * config/rs6000/rs6000-cpus.def: Delete definitions for RIOS
        CPUs.
        * config/rs6000/rs6000-opts.h (enum processor_type): Delete
        PROCESSOR_RIOS1 and PROCESSOR_RIOS2.
        * config/rs6000/rs6000-tables.opt: Regenerated.
        * config/rs6000/rs6000.c (struct rios1_cost, struct rios2_cost):
        Delete.
        (rs6000_option_override_internal): Delete support for RIOS CPUs.
        (rs6000_conditional_register_usage): Adjust comment.
        (rs6000_issue_rate):Delete support for RIOS CPUs.
        * config/rs6000/rs6000.h (ASM_CPU_SPEC): Delete support for
        RIOS CPUs.
        (PROCESSOR_POWER): Change to PROCESSOR_PPC601.
        (PROCESSOR_DEFAULT): Change to PROCESSOR_PPC603.
        * config/rs6000/rs6000.md (define_attr "cpu"): Delete rios1
        and rios2.
        (include "rios1.md", include "rios2.md"): Delete.
        (include "601.md"): New.
        * config/rs6000/rs6000.opt (enum rs6000_cpu): Default to
        PROCESSOR_PPC603.
        * config/rs6000/t-aix43 (MULTILIB_MATCHES): Delete support
        for RIOS CPUs.
        * config/rs6000/t-rs6000 (MD_INCLUDES): Delete rios1.md and
        rios2.md .  Add 601.md .

From-SVN: r189907

        * gcc.dg/20020201-1.c: Remove declarations for exit, abort,
        rand, srand. Include <stdlib.h>.

From-SVN: r189905

From-SVN: r189904

pex-win32.c (pex_win32_exec_child): Only close original file descriptors if child is launched successfully.

2012-07-26  Kazu Hirata  <kazu@codesourcery.com>
	    Sandra Loosemore  <sandra@codesourcery.com>

	libiberty/
	* pex-win32.c (pex_win32_exec_child): Only close original file
	descriptors if child is launched successfully.

Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>

From-SVN: r189901

From-SVN: r189899

gcc/
        * doc/extend.texi (attribute): Document hot/cold for labels.
        * predict.c (tree_estimate_probability_bb): Handle hot/cold
        attributes on user labels.
        * predict.def (PRED_HOT_LABEL, PRED_COLD_LABEL): New.
gcc/c-family/
        * c-common.c (handle_hot_attribute): Allow labels.
        (handle_cold_attribute): Likewise.
gcc/testsuite/
        * gcc.dg/attr-hotcold-1.c: New.
        * gcc.dg/tree-ssa/attr-hotcold-2.c: New.

From-SVN: r189898

2012-07-26  Andrew Jenner  <andrew@codesourcery.com>
	    Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* cse.c (find_comparison_args): Check for cycles of any length.

	gcc/testsuite/
	* gcc.c-torture/compile/pr50380.c: Add code to cause cycle of length 2.

Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>

From-SVN: r189896

From-SVN: r189894

Some of the hosts were we run this script are still using Python 2.4.
This patch replaces the use of 'with ... as ...' to avoid syntax errors.

2012-07-26   Diego Novillo  <dnovillo@google.com>

	* testsuite-management/validate_failures.py: Do not use
	'with ... as ...' constructs.

From-SVN: r189893

	* config/mn10300/mn10300.c (REG_SAVE_BYTES): Delete.
	(mn10300_get_live_callee_saved_regs): If requested return a count
	of the number of bytes in the mask.
	(mn10300_expand_prologue): Add argument to invocation of
	mn10300_get_live_callee_regs.
	(mn10300_expand_epilogue): Compute reg_save_bytes by calling
	mn10300_get_live_callee_saved_regs.
	(mn10300_initial_offset): Likewise.
	* config/mn10300/mn10300-protos.h (mn10300_get_live_callee_saved_regs):
	Update prototype.
	* config/mn10300/mn10300.md (return_ret): Add argument to
	invocation of mn10300_get_live_callee_saved_regs.

From-SVN: r189892

	PR regression/54084
	* sel-sched-ir.c (cmp_v_in_regset_pool): Clarify logic, fix
	pointer difference check.

From-SVN: r189891

2012-07-26  Bill Schmidt  <wschmidt@linux.ibm.com>

	* tree-ssa-loop-ivopts.c (mbc_entry_hash): Remove.
	(mbc_entry_eq): Likewise.
	(mult_costs): Likewise.
	(cost_tables_exist): Likewise.
	(initialize_costs): Likewise.
	(finalize_costs): Likewise.
	(tree_ssa_iv_optimize_init): Remove call to initialize_costs.
	(add_regs_cost): Remove.
	(multiply_regs_cost): Likewise.
	(add_const_cost): Likewise.
	(extend_or_trunc_reg_cost): Likewise.
	(negate_reg_cost): Likewise.
	(struct mbc_entry): Likewise.
	(multiply_by_const_cost): Likewise.
	(get_address_cost): Change add_regs_cost calls to add_cost lookups;
	change multiply_by_const_cost to mult_by_coeff_cost.
	(force_expr_to_var_cost): Likewise.
	(difference_cost): Change multiply_by_const_cost to mult_by_coeff_cost.
	(get_computation_cost_at): Change add_regs_cost calls to add_cost
	lookups; change multiply_by_const_cost to mult_by_coeff_cost.
	(determine_iv_cost): Change add_regs_cost calls to add_cost lookups.
	(tree_ssa_iv_optimize_finalize): Remove call to finalize_costs.
	* tree-ssa-address.c (expmed.h): New #include.
	(most_expensive_mult_to_index): Change multiply_by_const_cost to
	mult_by_coeff_cost.
	* gimple-ssa-strength-reduction.c (expmed.h): New #include.
	(stmt_cost): Change to use mult_by_coeff_cost, mul_cost, add_cost,
	neg_cost, and convert_cost instead of IVOPTS interfaces.
	(execute_strength_reduction): Remove calls to initialize_costs and
	finalize_costs.
	* expmed.c (struct init_expmed_rtl): Add convert rtx_def.
	(init_expmed_one_mode): Initialize convert rtx_def; initialize
	x_convert_cost for related modes.
	(mult_by_coeff_cost): New function.
	* expmed.h (NUM_MODE_INT): New #define.
	(struct target_expmed): Add x_convert_cost matrix.
	(set_convert_cost): New inline function.
	(convert_cost): Likewise.
	(mult_by_coeff_cost): New extern decl.
	* tree-flow.h (initialize_costs): Remove decl.
	(finalize_costs): Likewise.
	(multiply_by_const_cost): Likewise.
	(add_regs_cost): Likewise.
	(multiply_regs_cost): Likewise.
	(add_const_cost): Likewise.
	(extend_or_trunc_reg_cost): Likewise.
	(negate_reg_cost): Likewise.
	* Makefile.in (gimple-ssa-strength-reduction.o): Update dependencies.
	(tree-ssa-address.o): Update dependencies.

From-SVN: r189890

	* bitmap.h: Add explanation of sparse set as linked-list bitmap.
	* sbitmap.h: Add explanation about non-sparse sets as simple bitmap.
	(TEST_BIT): Make a static inline function for stronger type checking.
	(SET_BIT): Don't handle sbitmaps with popcount.
	(RESET_BIT): Likewise.
	(SET_BIT_WITH_POPCOUNT): New, like SET_BIT but with popcount.
	(RESET_BIT_WITH_POPCOUNT): New, like RESET_BIT but with popcount.
	* ebitmap.c (ebitmap_clear_bit): Use SET_BIT_WITH_POPCOUNT and
	RESET_BIT_WITH_POPCOUNT on wordmask bitmaps.
	(ebitmap_set_bit, ebitmap_and_into, ebitmap_and, ebitmap_ior_into,
	ebitmap_and_compl_into, ebitmap_and_compl): Likewise.
	* sparseset.h: Add explanation of sparse set representation.

From-SVN: r189888

2012-07-26  Tobias Burnus  <burnus@net-b.de>

        * gfortran.dg/contiguous_1.f90: Update dg-error.
        * gfortran.dg/proc_ptr_32.f90: Ditto.

From-SVN: r189887

2012-07-26  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/54098
	* tree-vrp.c (vrp_visit_phi_node): Iterate once more if the
	original range was UNDEFINED.

	* gcc.dg/torture/pr54098.c: New testcase.

From-SVN: r189885

2012-07-26  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	* config/arm/neon.ml (ops): Fix regexp for vld1Q_dups64 and
	vld1Q_dupu64 tests.

2012-07-26  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	* gcc.target/arm/neon/vld1Q_dupu64.c: Regenerate.
	* gcc.target/arm/neon/vld1Q_dups64.c: Likewise.

From-SVN: r189884

fortran/
	PR fortran/44354
	* trans-array.c (gfc_trans_array_constructor_value):
	Evaluate the iteration bounds before the inner variable shadows
	the outer.

testsuite/
	PR fortran/44354
	* gfortran.dg/array_constructor_39.f90: New test.

From-SVN: r189883

fortran/
	PR fortran/44354
	* array.c (sought_symbol): New variable.
	(expr_is_sought_symbol_ref, find_symbol_in_expr): New functions.
	(resolve_array_list): Check for references to the induction
	variable in the iteration bounds and issue a diagnostic if some
	are found.

testsuite/
	PR fortran/44354
	* gfortran.dg/array_constructor_38.f90: New test.

From-SVN: r189882

2012-07-26  Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>
            Tobias Burnus  <burnus@net-b.de>

        * module.c (mio_array_spec): Don't read as->lower for
        assumed-rank arrays.


Co-Authored-By: Tobias Burnus <burnus@net-b.de>

From-SVN: r189881

From-SVN: r189878

	PR target/51244
	* config/sh/sh.opt (mzdcbranch): New option.
	* doc/invoke.texi: Document it.
	* config/sh/sh.md (negsi_cond): Use TARGET_ZDCBRANCH as condition
	instead of TARGET_HARD_SH4.
	* config/sh/sh.c (sh_option_override): Set TARGET_ZDCBRANCH as default
	for TARGET_HARD_SH4.

From-SVN: r189877

From-SVN: r189876

From-SVN: r189873

	PR target/54089
	* config/sh/predicates.md (shift_count_operand): Handle not-SHMEDIA
	case.
	(p27_shift_count_operand, not_p27_shift_count_operand): New predicates.
	* config/sh/sh.md (ashlsi3): Remove parallel and T_REG clobber
	from expander.  Do not emit shift insn for not-SHMEDIA case.
	(ashlsi3_std): Replace with ...
	(ashlsi3_k, ashlsi3_d): ... these new insns.
	* config/sh/sh.c (gen_ashift): Make static.  Add sanity checks.
	Emit ashlsi3_k insn instead of ashlsi3_std in ASHIFT case.
	(gen_ashift_hi): Make static.
	* config/sh/sh-protos.h (gen_ashift, gen_ashift_hi): Remove forward
	declaration.

From-SVN: r189872

From-SVN: r189870

config/arm/bpabi.h (BE8_LINK_SPEC): Set according to
TARGET_BIG_ENDIAN_DEFAULT.

Co-Authored-By: Jim Wilson <jimwilso@cisco.com>

From-SVN: r189867

	* gimple-low.c (lower_try_catch): New function.
	(lower_stmt) <GIMPLE_TRY>: Use it to lower GIMPLE_TRY_CATCH.
	<GIMPLE_CATCH>: Delete.
	<GIMPLE_EH_FILTER>: Likewise.

From-SVN: r189865

	* expr.c (expand_expr_real_1): Do not expand operand #1 and #2
	of BIT_FIELD_REF for ignored results.
	* fold-const.c (fold_ternary_loc) <BIT_FIELD_REF>: Check that the
	CONSTRUCTOR has vector type before using vector accessors on it.
	* gimplify.c (gimplify_compound_lval): Do not gimplify operand #1 and
	#2 of BIT_FIELD_REF.
	(gimplify_expr) <BIT_FIELD_REF>: Likewise.
	* tree-nested.c (convert_nonlocal_reference_op) <BIT_FIELD_REF>: Do
	not process operand #1 and #2.
	(convert_local_reference_op): Likewise.
	* tree-ssa-pre.c (create_component_ref_by_pieces_1): Remove superfluous
	breaks throughout.
	<BIT_FIELD_REF>: Reuse operand #1 and #2 directly.
	* tree.c (stabilize_reference) <BIT_FIELD_REF>: Do not stabilize
	operand #1 and #2.
	(UPDATE_FLAGS): Do not consider operand #2 of BIT_FIELD_REF.
	(build6_stat): Delete.
	* tree.h (build6_stat, build6, build6_stat_loc, build6_loc): Likewise.
ada/
	* gcc-interface/utils2.c (gnat_stabilize_reference) <BIT_FIELD_REF>: Do
	not stabilize operand #1 and #2.

From-SVN: r189864

2012-07-25  François Dumont  <fdumont@gcc.gnu.org>

	PR libstdc++/54075
	* include/bits/hashtable.h
	(_Hashtable<>::_Hashtable(_InputIterator, _InputIterator,
	size_type, ...): Remove std::max usage to guarantee that hashtable
	state is consistent with hash policy state.
	(_Hashtable<>::rehash): Likewise. Set _M_prev_resize to 0 to avoid
	the hashtable to be shrinking on next insertion.
	* testsuite/23_containers/unordered_set/modifiers/reserve.cc: New.
	* testsuite/23_containers/unordered_multiset/modifiers/reserve.cc: New.
	* testsuite/23_containers/unordered_map/modifiers/reserve.cc: New.
	* testsuite/23_containers/unordered_multimap/modifiers/reserve.cc: New.

From-SVN: r189863

2012-07-25 Marc Glisse <marc.glisse@inria.fr>

	PR tree-optimization/30318
	* tree-vrp.c (extract_range_from_binary_expr_1) [PLUS_EXPR]:
	Handle __int128.
	[MINUS_EXPR]: Merge with PLUS_EXPR.

From-SVN: r189861

2012-07-25  Sandra Loosemore  <sandra@codesourcery.com>
	    Paul Brook  <paul@codesourcery.com>

	PR target/53633

	gcc/
	* target.def (warn_func_return): New hook.
	* doc/tm.texi.in (TARGET_WARN_FUNC_RETURN): New hook.
	* doc/tm.texi: Regenerate.
	* doc/sourcebuild.texi (Effective-Target Keywords): Document
	naked_functions.
	* ipa-pure-const.c (warn_function_noreturn): Check
	targetm.warn_func_return.
	* tree-cfg.c (execute_warn_function_return): Likewise.
	* config/spu/spu.c (spu_warn_func_return): New.
	(TARGET_WARN_FUNC_RETURN): Define.
	* config/rx/rx.c (rx_warn_func_return): New.
	(TARGET_WARN_FUNC_RETURN): Define.
	* config/avr/avr.c (avr_warn_func_return): New.
	(TARGET_WARN_FUNC_RETURN): Define.
	* config/arm/arm.c (arm_warn_func_return): New.
	(TARGET_WARN_FUNC_RETURN): Define.
	* config/mcore/mcore.c (mcore_warn_func_return): New.
	(TARGET_WARN_FUNC_RETURN): Define.
	(saved_warn_return_type, saved_warn_return_type_count): Remove.
	(mcore_reorg, mcore_handle_naked_attribute): Remove warn_return hack.

	gcc/cp/
	* decl.c (finish_function): Check targetm.warn_func_return.

	gcc/testsuite/
	* lib/target-suports.exp (check_effective_target_naked_functions):
	New.
	* c-c++-common/pr53633.c: New test.

Co-Authored-By: Paul Brook <paul@codesourcery.com>

From-SVN: r189860

2012-07-25  Tobias Burnus  <burnus@net-b.de>

        * trans-types.c (gfc_real16_is_float128): Fix spelling
        in a comment.
        * trans.h (struct gfc_array_info): Ditto.
        * gfortran.h (gfc_expr): Ditto.
        * simplify.c (gfc_count): Ditto.
        * trans-expr.c (gfc_copy_class_to_class,
        conv_parent_component_references,
        gfc_trans_pointer_assignment): Ditto.
        * expr.c (check_pointer_assign): Fix diagnostic spelling.
        * interface.c (compare_parameter): Ditto.
        * parse.c (use_modules, parse_associate): Ditto.
        * decl.c (match_char_length): Fix spelling of the
        an function argument.

From-SVN: r189859

* io/list_read.c (list_formatted_read_scalar): Fix copying real
value back to temporary.

From-SVN: r189856

	* final.c [ASSEMBLER_DIALECT](do_assembler_dialects): New
	function to implement assembler dialects.
	(output_asm_insn): Use do_assembler_dialects.
	(asm_fprintf): Likewise.

	* gcc.target/i386/asm-dialect-1.c: New test case.

From-SVN: r189854

PR bootstrap/54092

        * libfuncs.h: Don't include optabs.h.
        (struct libfunc_entry): Use "int" for op, mode1, mode2 members.
        * optabs.c (hash_libfunc): Don't cast members to int.
        * Makefile.in (LIBFUNCS_H): Don't include OPTABS_H.

From-SVN: r189853

	PR c++/54086
	* decl.c (grokdeclarator): Allow const and constexpr together.

From-SVN: r189852

	PR c++/54020
	* semantics.c (potential_constant_expression_1) [COND_EXPR]: Call
	maybe_constant_value.

From-SVN: r189851

	* cp-tree.h (tsubst_flags): Remove tf_no_access_control.
	* call.c (standard_conversion): Don't set it.
	* class.c (resolve_address_of_overloaded_function): Don't check it.
	* decl.c (check_default_argument): Call
	perform_implicit_conversion_flags.

From-SVN: r189850

From-SVN: r189849