PR c++/85976
	* tree.c (cp_tree_equal): Handle USING_DECL.

	* g++.dg/cpp0x/alias-decl-64.C: New test.

From-SVN: r261200

2018-06-05  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/47618
	* doc/invoke.texi: Document how -fprofile-dir format
        is extended.
2018-06-05  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/47618
	* libgcov-driver-system.c (replace_filename_variables): New
        function.
	(gcov_exit_open_gcda_file): Use it.

From-SVN: r261199

	* semantics.c (finish_qualified_id_expr): build_qualified_name
	for unbound names in the current class.

From-SVN: r261196

tree-cfgcleanup.c (cleanup_control_flow_pre): For edge removal pretend DOM info isn't available so we do not update it and...

2018-06-05  Richard Biener  <rguenther@suse.de>

	* tree-cfgcleanup.c (cleanup_control_flow_pre): For edge
	removal pretend DOM info isn't available so we do not update
	it and only remove edges, not dominated blocks.  Actually free
	DOM info in case we removed something.  Remove unreachable blocks.
	(mfb_keep_latches): Work with either DOM info or marked backedges.
	(cleanup_tree_cfg_noloop): Do not remove unreachable blocks
	first.  Mark backedges if DOM info isn't available.
	(Re-)compute DOM info after cleanup_control_flow_pre.

From-SVN: r261195

2018-06-05  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (struct locus_discrim_map): Store line, not location.
	(locus_discrim_hasher::hash): Adjust.
	(locus_discrim_hasher::equal): Likewise.
	(next_discriminator_for_locus): Work on line directly.
	(same_line_p): Pass in expanded locus1 as well.
	(assign_discriminators): Avoid redundant location expansions.

From-SVN: r261194

2018-06-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86046
	* tree-ssa.c (maybe_optimize_var): Clear DECL_GIMPLE_REG_P
	if required after clearing TREE_ADDRESSABLE.

	* gcc.dg/pr86046.c: New testcase.

From-SVN: r261193

2018-06-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86047
	* tree-ssa-loop.c (for_each_index): Glob handling of all
	decls and constants and really handle all of them.

	* gcc.dg/pr86047.c: New testcase.

From-SVN: r261192

When trying to compile something with arm_acle.h using G++ we get a number of nasty errors:
arm_acle.h:48:49: error: invalid conversion from ‘const void*’ to ‘const int*’ [-fpermissive]
    return __builtin_arm_ldc (__coproc, __CRd, __p);

This is because the intrinsics that are supposed to be void return the "result" of their builtin,
which is void. C lets that slide but C++ complains.

After fixing that we run into further errors:
arm_acle.h:48:46: error: invalid conversion from 'const void*' to 'const int*' [-fpermissive]
    return __builtin_arm_ldc (__coproc, __CRd, __p);
                                               ^~~
Because the pointer arguments in these intrinsics are void pointers but the builtin
expects int pointers. So this patch introduces new qualifiers for void pointers and their
const-qualified versions and uses that in the specification of these intrinsics.

This gives us the opportunity of creating an arm subdirectory in g++.dg and inaugurates it
with the first arm-specific C++ tests (in that directory).


	PR target/81497
	* config/arm/arm-builtins.c (arm_type_qualifiers): Add
	qualifier_void_pointer and qualifier_const_void_pointer.
	(arm_ldc_qualifiers, arm_stc_qualifiers): Use the above.
	(arm_init_builtins): Handle the above.
	* config/arm/arm_acle.h (__arm_cdp, __arm_ldc, __arm_ldcl, __arm_stc,
	__arm_stcl, __arm_mcr, __arm_cdp2, __arm_ldc2, __arm_ldcl2, __arm_stc2,
	__arm_stcl2,__arm_mcr2, __arm_mcrr, __arm_mcrr2): Remove return for
	void intrinsics.

	* g++.target/arm/arm.exp: New file.
	* g++.target/arm/pr81497.C: Likewise.

From-SVN: r261191

2018-06-05  Martin Liska  <mliska@suse.cz>

	* auto-profile.c (read_autofdo_file): Do not use
	gcov_ctr_summary struct.
	(afdo_callsite_hot_enough_for_early_inline): Likewise.
	* coverage.c (struct counts_entry): Likewise.
	(read_counts_file): Read just single summary entry.
	(get_coverage_counts): Use gcov_summary struct.
	* coverage.h (get_coverage_counts): Likewise.
	* gcov-dump.c (dump_working_sets): Likewise.
	(tag_summary): Dump just single summary.
	* gcov-io.c (gcov_write_summary): Write just histogram
	summary.
	(gcov_read_summary): Read just single summary.
	(compute_working_sets): Use gcov_summary struct.
	* gcov-io.h (GCOV_TAG_SUMMARY_LENGTH): Remove usage
	of GCOV_COUNTERS_SUMMABLE.
	(GCOV_COUNTERS_SUMMABLE): Remove.
	(GCOV_FIRST_VALUE_COUNTER): Replace with
	GCOV_COUNTER_V_INTERVAL.
	(struct gcov_ctr_summary): Remove.
	(struct gcov_summary): Directly use fields of former
	gcov_ctr_summary.
	(compute_working_sets): Use gcov_summary struct.
	* gcov.c (read_count_file): Do not use ctrs fields.
	* lto-cgraph.c (merge_profile_summaries): Use gcov_summary
	struct.
	* lto-streamer.h (struct GTY): Make profile_info gcov_summary
	struct.
	* profile.c: Likewise.
	* profile.h: Likewise.
2018-06-05  Martin Liska  <mliska@suse.cz>

	* libgcov-driver.c (gcov_compute_histogram): Remove usage
	of gcov_ctr_summary.
	(compute_summary): Do it just for a single summary.
	(merge_one_data): Likewise.
	(merge_summary): Simplify as we read just single summary.
	(dump_one_gcov): Pass proper argument.
	* libgcov-util.c (compute_one_gcov): Simplify as we have just
	single summary.
	(gcov_info_count_all_cold): Likewise.
	(calculate_overlap): Likewise.

From-SVN: r261189

2018-06-05  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/84846
	* gcov.c (output_lines): Print working directory only
	in intermediate format.

From-SVN: r261188

From-SVN: r261186

Symlinks are not supported on mingw.

	* testsuite/27_io/filesystem/operations/read_symlink.cc: XFAIL for
	mingw* targets.
	* testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
	* testsuite/experimental/filesystem/operations/read_symlink.cc:
	Likewise.

From-SVN: r261185

The builtin was accidentally defined to have an integer return value.
Fixed with the attached patch.

gcc/ChangeLog:

2018-06-05  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390-builtin-types.def: Add void function type.
	* config/s390/s390-builtins.def: Use the function type for the
	tbeginc builtin.

gcc/testsuite/ChangeLog:

2018-06-05  Andreas Krebbel  <krebbel@linux.ibm.com>

	* gcc.target/s390/htm-builtins-compile-4.c: New test.

From-SVN: r261183

	* include/bits/stl_tempbuf.h
	(_Temporary_buffer(_FwdIte, _FwdIte)): Delete, replaced by...
	(_Temporary_buffer(_FwdIte, size_type)): ...this, new.
	* include/ext/memory (temporary_buffer<>(_FwdIte, _FwdIte)): Adapt.
	* include/bits/stl_algo.h (__stable_partition): Adapt.
	(__inplace_merge): Adapt.
	(__stable_sort): Adapt.

From-SVN: r261181

From-SVN: r261180

	gcc/
	* config/riscv/riscv-protos.h (riscv_expand_epilogue): Change bool arg
	to int.
	* config/riscv/riscv.c (riscv_for_each_saved_reg): New args epilogue
	and maybe_eh_return.  Change regno to unsigned int.  Use new args to
	handle EH_RETURN_DATA_REGNO registers properly.
	(riscv_expand_prologue): Pass new args to riscv_for_each_saved_reg.
	(riscv_expand_epilogue): Update comment.  Change argument name and
	type.  Update code to use new name and type.  Pass new args to
	riscv_for_each_saved_reg.  Only use EH_RETURN_STACKADJ_RTX when
	EXCEPTION_RETURN.
	* config/riscv/riscv.md (NORMAL_RETURN): New.
	(SIBCALL_RETURN, EXCEPTION_RETURN): New.
	(epilogue, sibcall_epilogue): Update riscv_expand_epilogue arg.
	(eh_return): Call gen_eh_return_internal and emit barrier.
	(eh_return_internal): Call riscv_expand_epilogue.

From-SVN: r261176

gimple-ssa-store-merging.c (struct merged_store_group): Move up bit_insertion field and declare can_be_merged_into method.

	* gimple-ssa-store-merging.c (struct merged_store_group): Move up
	bit_insertion field and declare can_be_merged_into method.
	(merged_store_group::can_be_merged_into): New method.
	(imm_store_chain_info::coalesce_immediate): Call it to decide whether
	consecutive non-overlapping stores can be merged.  Turn MEM_REF stores
	into BIT_INSERT_EXPR stores if the group contains a non-MEM_REF store.

From-SVN: r261173

	PR libstdc++/85930
	* include/bits/shared_ptr_base.h [!__cpp_rtti]: Include <typeinfo>
	unconditionally. Remove redundant declaration.
	[!__cpp_rtti] (_Sp_make_shared_tag::_S_ti): Fix location of
	alignment-specifier.

From-SVN: r261172

    
    This patch fixes type traversal to avoid compiler crashes for test
    cases where a type T includes an expression that refers back to the
    type without actually explicitly mentioning T. Examples include
    
      var x [uintptr(unsafe.Sizeof(&x))]byte
      var a [len(a)]int
    
    The fix involves expanding the set of types that the traversal code
    "remembers" (to avoid cycles) to include array types, and introducing an
    additional guard in Builtin_call_expression::do_is_constant to catch
    cyclic type constructs.
    
    Fixes golang/go#25299
    Fixes golang/go#25679
    Fixes golang/go#25315
    Fixes golang/go#25680
    
    Reviewed-on: https://go-review.googlesource.com/115796

From-SVN: r261168

2018-06-04  Martin Liska  <mliska@suse.cz>

	* MAINTAINERS: Add myself as gcov maintainer.

From-SVN: r261167

2018-06-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/85955
	* builtins.c (fold_builtin_sincos): Convert pointers to
	destination to appropriate type before dereferencing.

	* gcc.dg/pr85955.c: New testcase.

From-SVN: r261165

From-SVN: r261164

From-SVN: r261159

Without this patch absif2 always FAILs.  There is no testcase for
that, nor do we see it during bootstrap, but it is obvious.


	* config/rs6000/rs6000.md (abs<mode>2 for FLOAT128): Handle IFmode.

From-SVN: r261158

	* include/bits/postypes.h (fpos): Define special members as defaulted.

From-SVN: r261156

	PR libstdc++/85930
	* include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Align
	the static variable correctly.

From-SVN: r261155

2018-06-04  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85981
	* resolve.c (resolve_allocate_deallocate): Check errmsg is default
	character kind.

2018-06-04  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85981
	* gfortran.dg/allocate_alloc_opt_14.f90: New test.
	* gfortran.dg/allocate_alloc_opt_1.f90: Update error string.
	* gfortran.dg/allocate_stat_2.f90: Ditto.
	* gfortran.dg/deallocate_alloc_opt_1.f90: Ditto.

From-SVN: r261154

	* MAINTAINERS: Update my email address.

From-SVN: r261153

	* cp-tree.h (deferring_access_check_sentinel): Add deferring_kind
	parameter to constructor.
	* pt.c (instantiate_class_template_1): Enable access checking
	before call to most_specialized_partial_spec.

From-SVN: r261151

The handling of bitfield references in expand_expr_real_1 includes:

            machine_mode ext_mode = mode;

            if (ext_mode == BLKmode
                && ! (target != 0 && MEM_P (op0)
                      && MEM_P (target)
                      && multiple_p (bitpos, BITS_PER_UNIT)))
              ext_mode = int_mode_for_size (bitsize, 1).else_blk ();

            if (ext_mode == BLKmode)
              {
                [...]
                gcc_assert (MEM_P (op0)

Here "mode" is the TYPE_MODE of the result, so when mode == BLKmode,
the target must be a MEM if nonnull, since no other rtl objects can
have BLKmode.  But there's no guarantee that the source value op0 is also
BLKmode and thus also a MEM: we can reach the assert for any source if
the bitsize being extracted is larger than the largest integer mode
(or larger than MAX_FIXED_MODE_SIZE).

This triggered for SVE with -msve-vector-bits=512, where we could
sometimes try to extract a BLKmode value from a 512-bit vector,
and where int_mode_for_size would rightly fail for large bitsizes.

The patch reuses the existing:

	/* Otherwise, if this is a constant or the object is not in memory
	   and need be, put it there.  */
	else if (CONSTANT_P (op0) || (!MEM_P (op0) && must_force_mem))
	  {
	    memloc = assign_temp (TREE_TYPE (tem), 1, 1);
	    emit_move_insn (memloc, op0);
	    op0 = memloc;
	    clear_mem_expr = true;
	  }

to handle this case.

2018-05-29  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* expr.c (expand_expr_real_1): Force the operand into memory if
	its TYPE_MODE is BLKmode and if there is no integer mode for
	the number of bits being extracted.

gcc/testsuite/
	* gcc.target/aarch64/sve/extract_5.c: New test.

From-SVN: r261150

	PR target/85832
	PR target/86036
	* config/i386/sse.md (<avx512>_eq<mode>3<mask_scalar_merge_name>_1):
	Use vptestnm rather than vptestm in (=Yc,v,C) variant.

	* gcc.target/i386/avx512f-pr85832.c: Expect vptestnm rather than
	vptestm.
	* gcc.target/i386/avx512vl-pr85832.c: Likewise.
	* gcc.target/i386/avx512vlbw-pr85832.c: Likewise.
	* gcc.target/i386/avx512bw-pr85832.c: Likewise.
	* gcc.target/i386/avx512bw-pr86036.c: New test.

From-SVN: r261148

	* pt.c (type_unification_real): Do full semantic processing if
	substituting a partial args list replaces all template parms.

From-SVN: r261146

2018-06-04  Richard Biener  <rguenther@suse.de>

	* tree-cfgcleanup.c (cleanup_tree_cfg_1): Fold into...
	(cleanup_tree_cfg_noloop): ... single caller.  Do
	start_recording_case_labels later.

From-SVN: r261145

2018-06-04  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config/i386/cldemoteintrin.h: Change define from _X86INTRIN_H_INCLUDED
        to _IMMINTRIN_H_INCLUDED.
        * config/i386/pconfigintrin.h: Ditto.
        * config/i386/waitpkgintrin.h: Ditto.
        * config/i386/immintrin.h: Add includes for sgxintrin.h,
        pconfigintrin.h, waitpkgintrin.h and cldemoteintrin.h.
        * config/i386/x86intrin.h: Remove includes for mintrin.h, xmmintrin.h,
        emmintrin.h, pmmintrin.h, tmmintrin.h, smmintrin.h, wmmintrin.h,
        bmiintrin.h, bmi2intrin.h, lzcntintrin.h, sgxintrin.h, pconfigintrin.h,
        waitpkgintrin.h and cldemoteintrin.h.

From-SVN: r261144

2018-06-04  Tom de Vries  <tdevries@suse.de>

	* MAINTAINERS: Remove write-after-approval entries for component
	maintainers.

From-SVN: r261143

2018-06-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86038
	* tracer.c (find_best_successor): Check probability for
	being initialized, bail out if not.

	* gcc.dg/pr86038.c: New testcase.

From-SVN: r261142

The XScale cpu configuration in GCC has always been somewhat
non-conforming.  Although XScale isn't an architecture (it's simply an
implementation of ARMv5te), we do by tradition emit a specific
pre-define for it.  We achieve this effect by adding an additional
feature bit to the xscale CPU definition that isn't part of the base
architecture.

When I restructured the options last year I overlooked this oddity and
the result, of course, is that this configuration now fails to build
as intended.

What happens is that the driver (correctly) constructs an architecture
for the xscale cpu name (as armv5te) and passes it in addition to the
CPU name.  The backend code, on finding both a cpu and an architecture
specifies attempts to correlate the two and finds a difference due to
the additional feature bit and reports an inconsistency (fatally if
-werror is specified).

I think the best fix to this is to treat the xscale feature bit using
the same mechanism that we use for other 'quirks' in CPU
implementations and simply filter it out before comparing the
capabilities.  It has the additional benefit that it's also the
simplest fix.

	PR target/86003
	* config/arm/arm-cpus.in (ALL_QUIRKS): Add xscale feature to the list
	of bits to ignore when comparing architectures.

From-SVN: r261140

	PR tree-optimization/69615
	* fold-const.c (merge_ranges): If range1 is - [x, x] and x is the
	maximum or minimum of the type, try to merge it also as if
	range1 is + [-, x - 1] or + [x + 1, -].

	* gcc.dg/pr69615.c: New test.

From-SVN: r261139

	PR c++/86025
	* tree.c (inchash::add_expr): Handle IDENTIFIER_NODE.

	* c-c++-common/gomp/pr86025.c: New test.

From-SVN: r261137

From-SVN: r261136