"make selftest-valgrind" shows:

187 bytes in 1 blocks are definitely lost in loss record 567 of 669
    at 0x4A081D4: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
    by 0x1F08260: xcalloc (xmalloc.c:162)
    by 0xB24F32: init_emit() (emit-rtl.c:5843)
    by 0xC10080: prepare_function_start() (function.c:4803)
    by 0xC10254: init_function_start(tree_node*) (function.c:4877)
    by 0x1CDF92A: selftest::test_expansion_to_rtl() (function-tests.c:595)
    by 0x1CE007C: selftest::function_tests_c_tests() (function-tests.c:676)
    by 0x1E010E7: selftest::run_tests() (selftest-run-tests.c:98)
    by 0x1062D1E: toplev::run_self_tests() (toplev.c:2225)
    by 0x1062F40: toplev::main(int, char**) (toplev.c:2303)
    by 0x1E5B90A: main (main.c:39)

The allocation in question is:

  crtl->emit.regno_pointer_align
    = XCNEWVEC (unsigned char, crtl->emit.regno_pointer_align_length);

This patch fixes this leak (and makes the output of
"make selftest-valgrind" clean) by calling free_after_compilation at the
end of the selftest in question.

gcc/ChangeLog:
	* function-tests.c (selftest::test_expansion_to_rtl): Call
	free_after_compilation.

From-SVN: r263339

	* g++.dg/torture/pr86763.C (dg-additional-options): Add -lrt
	for target *-*-linux-gnu.

From-SVN: r263338

gcc/
	* config/aarch64/aarch64.md: Add clobber highs to tls_desc.

gcc/testsuite/
	* gcc.target/aarch64/sve/tls_preserve_1.c: New test.
	* gcc.target/aarch64/sve/tls_preserve_2.c: New test.
	* gcc.target/aarch64/sve/tls_preserve_3.c: New test.

From-SVN: r263337

gcc/ChangeLog:

2018-08-06  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390.c (s390_loop_unroll_adjust): Prevent small
	loops with memory block operations from getting unrolled.

gcc/testsuite/ChangeLog:

2018-08-06  Andreas Krebbel  <krebbel@linux.ibm.com>

	* gcc.target/s390/nomemloopunroll-1.c: New test.

From-SVN: r263336

The SPU processor is not affected by speculation, so this macro can
safely be defined as speculation_safe_value_not_needed.

gcc/ChangeLog:

	PR target/86807
	* config/spu/spu.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
	Define to speculation_safe_value_not_needed.

From-SVN: r263335

	* reload1.c (forget_old_reloads_1): Adjust CLOBBER_HIGH
	assert.

From-SVN: r263333

PR target/86662

        * gcc/tree.c (build_common_tree_nodes): Initialize integer_types array
        with all enabled __intN types.

        * gcc/testsuite/gcc.target/msp430/pr86662.c: New test.

From-SVN: r263332

gcc/
	* alias.c (record_set): Check for clobber high.
	* cfgexpand.c (expand_gimple_stmt): Likewise.
	* combine-stack-adj.c (single_set_for_csa): Likewise.
	* combine.c (find_single_use_1): Likewise.
	(set_nonzero_bits_and_sign_copies): Likewise.
	(get_combine_src_dest): Likewise.
	(is_parallel_of_n_reg_sets): Likewise.
	(try_combine): Likewise.
	(record_dead_and_set_regs_1): Likewise.
	(reg_dead_at_p_1): Likewise.
	(reg_dead_at_p): Likewise.
	* dce.c (deletable_insn_p): Likewise.
	(mark_nonreg_stores_1): Likewise.
	(mark_nonreg_stores_2): Likewise.
	* df-scan.c (df_find_hard_reg_defs): Likewise.
	(df_uses_record): Likewise.
	(df_get_call_refs): Likewise.
	* dwarf2out.c (mem_loc_descriptor): Likewise.
	* haifa-sched.c (haifa_classify_rtx): Likewise.
	* ira-build.c (create_insn_allocnos): Likewise.
	* ira-costs.c (scan_one_insn): Likewise.
	* ira.c (equiv_init_movable_p): Likewise.
	(rtx_moveable_p): Likewise.
	(interesting_dest_for_shprep): Likewise.
	* jump.c (mark_jump_label_1): Likewise.
	* postreload-gcse.c (record_opr_changes): Likewise.
	* postreload.c (reload_cse_simplify): Likewise.
	(struct reg_use): Add source expr.
	(reload_combine): Check for clobber high.
	(reload_combine_note_use): Likewise.
	(reload_cse_move2add): Likewise.
	(move2add_note_store): Likewise.
	* print-rtl.c (print_pattern): Likewise.
	* recog.c (decode_asm_operands): Likewise.
	(store_data_bypass_p): Likewise.
	(if_test_bypass_p): Likewise.
	* regcprop.c (kill_clobbered_value): Likewise.
	(kill_set_value): Likewise.
	* reginfo.c (reg_scan_mark_refs): Likewise.
	* reload1.c (maybe_fix_stack_asms): Likewise.
	(eliminate_regs_1): Likewise.
	(elimination_effects): Likewise.
	(mark_not_eliminable): Likewise.
	(scan_paradoxical_subregs): Likewise.
	(forget_old_reloads_1): Likewise.
	* reorg.c (find_end_label): Likewise.
	(try_merge_delay_insns): Likewise.
	(redundant_insn): Likewise.
	(own_thread_p): Likewise.
	(fill_simple_delay_slots): Likewise.
	(fill_slots_from_thread): Likewise.
	(dbr_schedule): Likewise.
	* resource.c (update_live_status): Likewise.
	(mark_referenced_resources): Likewise.
	(mark_set_resources): Likewise.
	* rtl.c (copy_rtx): Likewise.
	* rtlanal.c (reg_referenced_p): Likewise.
	(single_set_2): Likewise.
	(noop_move_p): Likewise.
	(note_stores): Likewise.
	* sched-deps.c (sched_analyze_reg): Likewise.
	(sched_analyze_insn): Likewise.

From-SVN: r263331

gcc/
	* cse.c (invalidate_reg): New function extracted from...
	(invalidate): ...here.
	(canonicalize_insn): Check for clobber high.
	(invalidate_from_clobbers): invalidate clobber highs.
	(invalidate_from_sets_and_clobbers): Likewise.
	(count_reg_usage): Check for clobber high.
	(insn_live_p): Likewise.
	* cselib.c (cselib_expand_value_rtx_1):Likewise.
	(cselib_invalidate_regno): Check for clobber in setter.
	(cselib_invalidate_rtx): Pass through setter.
	(cselib_invalidate_rtx_note_stores):
	(cselib_process_insn): Check for clobber high.
	* cselib.h (cselib_invalidate_rtx): Add operand.

From-SVN: r263330

gcc/
	* lra-eliminations.c (lra_eliminate_regs_1): Check for clobber high.
	(mark_not_eliminable): Likewise.
	* lra-int.h (struct lra_insn_reg): Add clobber high marker.
	* lra-lives.c (process_bb_lives): Check for clobber high.
	* lra.c (new_insn_reg): Remember clobber highs.
	(collect_non_operand_hard_regs): Check for clobber high.
	(lra_set_insn_recog_data): Likewise.
	(add_regs_to_insn_regno_info): Likewise.
	(lra_update_insn_regno_info): Likewise.

From-SVN: r263329

gcc/
	* rtl.h (reg_is_clobbered_by_clobber_high): Add declarations.
	* rtlanal.c (reg_is_clobbered_by_clobber_high): Add function.

From-SVN: r263328

Ensure clobber high is a register expression.
Info is passed through for the error case.

gcc/
	* emit-rtl.c (verify_rtx_sharing): Check for CLOBBER_HIGH.
	(copy_insn_1): Likewise.
	(gen_hard_reg_clobber_high): New gen function.
	* genconfig.c (walk_insn_part): Check for CLOBBER_HIGH.
	* genemit.c (gen_exp): Likewise.
	(gen_emit_seq): Pass through info.
	(gen_insn): Check for CLOBBER_HIGH.
	(gen_expand): Pass through info.
	(gen_split): Likewise.
	(output_add_clobbers): Likewise.
	* genrecog.c (validate_pattern): Check for CLOBBER_HIGH.
	(remove_clobbers): Likewise.
	* rtl.h (gen_hard_reg_clobber_high): New declaration.

From-SVN: r263327

Includes documentation.

2018-08-06  Alan Hayward  <alan.hayward@arm.com>

	* doc/rtl.texi (clobber_high): Add.
	(parallel): Add in clobber high
	* rtl.c (rtl_check_failed_code3): Add function.
	* rtl.def (CLOBBER_HIGH): Add expression.
	* rtl.h (RTL_CHECKC3): Add macro.
	(rtl_check_failed_code3): Add declaration.
	(XC3EXP): Add macro.

From-SVN: r263326

	* MAINTAINERS: Update my email address.

From-SVN: r263325

From-SVN: r263324

Zlib is not a dependency of libbacktrace, and so it shouldn't be added
to LIBS.

libbacktrace/

	* configure.ac: Move define of HAVE_ZLIB into check for -lz.
	* Makefile.in: Regenerate.
	* config.h.in: Likewise.
	* configure: Likewise.

From-SVN: r263320

2018-08-05  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_iterator.h: Fix comment.

From-SVN: r263318

cfun->machine->max_used_stack_alignment is used to decide how stack frame
should be aligned.  This is independent of any psABIs nor 32-bit vs 64-bit.
It is always safe to compute max_used_stack_alignment.  We compute it only
if 128-bit aligned load/store may be generated on misaligned stack slot
which will lead to segfault.

gcc/

	PR target/86386
	* config/i386/i386.c (ix86_finalize_stack_frame_flags): Set
	cfun->machine->max_used_stack_alignment if needed.

gcc/testsuite/

	PR target/86386
	* gcc.target/i386/pr86386.c: New file.

From-SVN: r263317

From-SVN: r263316

gcc/ChangeLog:

	PR tree-optimization/86571
	* gimple-ssa-sprintf.c (format_floating): Extend upper bound of
	NaN output to 4.

From-SVN: r263312

2018-08-04  Tom de Vries  <tdevries@suse.de>

	* lib/gcc-gdb-test.exp: Use absolute line number in pass/fail line.

From-SVN: r263311

Using libgomp configure option --with-cuda-driver=<dir> we can indicate what
cuda driver to use to build the libgomp nvptx plugin.  Without such an option,
the system cuda driver is used, if available.  If not availabe, a dlopen
interface is used instead.

However, when we use --without-cuda-driver (or the equivalent
--with-cuda-driver=no) the system cuda driver is still used if available.

This patch fixes that, making sure that --without-cuda-driver selects the dlopen
interface.

Build on x86_64 with nvptx accelerator and tested libgomp testsuite, with and
without option --without-cuda-driver.

2018-08-04  Tom de Vries  <tdevries@suse.de>

	* plugin/configfrag.ac: For --without-cuda-driver, set
	CUDA_DRIVER_INCLUDE and CUDA_DRIVER_LIB to no.  Handle
	CUDA_DRIVER_INCLUDE == no and CUDA_DRIVER_LIB == no.
	* configure: Regenerate.

From-SVN: r263310

* gcc.dg/guality/const-volatile.c: Remove duplicate test
"type:cvip".

From-SVN: r263309

2018-08-04  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/45521
	* interface.c (gfc_compare_interfaces): Apply additional
	distinguishability criteria of F08 to operator interfaces.


2018-08-04  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/45521
	* gfortran.dg/interface_assignment_6.f90: New test case.

From-SVN: r263308

	PR testsuite/86153
	* g++.dg/pr83239.C (dg-options): Add -finline-limit=500.

From-SVN: r263306

From-SVN: r263305

2018-08-03  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
	Define.

From-SVN: r263301

From-SVN: r263300

	* config/sh/sjlj.S: Adjust to use PIC vs normal code to avoid
	absolute relocation in a shared library.

From-SVN: r263299

gcc/cp/ChangeLog:

	PR c++/85523
	* decl.c: Include "gcc-rich-location.h".
	(add_return_star_this_fixit): New function.
	(finish_function): When warning about missing return statements in
	functions returning non-void, add a "return *this;" fix-it hint for
	assignment operators.

gcc/testsuite/ChangeLog:

	PR c++/85523
	* g++.dg/pr85523.C: New test.


Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r263298

	PR target/86795
	* config/mn10300/mn10300.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
	Define to speculation_safe_value_not_needed.

From-SVN: r263296

gcc/ChangeLog:
	* doc/gcov.texi (-x): Remove duplicate "to".
	* doc/invoke.texi (-Wnoexcept-type): Remove duplicate "calls".
	(-Wif-not-aligned): Remove duplicate "is".
	(-flto): Remove duplicate "the".
	(MicroBlaze Options): In examples of "-mcpu=cpu-type", remove
	duplicate "v5.00.b".
	(MSP430 Options): Remove duplicate "and" from the description
	of "-mgprel-sec=regexp".
	(x86 Options): Remove duplicate copies of "vmldLog102" and
	vmlsLog104 from description of "-mveclibabi=type".

From-SVN: r263295

If a struct contains an anonymous union and both have a field with the
same name, detect_field_duplicates_hash() will replace one of them
with NULL.  If compilation doesn't stop immediately, it may later call
lookup_field() on the union, which falsely assumes the union's
LANG_SPECIFIC array is sorted, and may loop indefinitely because of
this.

2018-08-03  Bogdan Harjoc  <harjoc@gmail.com>

	PR c/86690
gcc/c:
	* c-typeck.c (lookup_field): Do not use TYPE_LANG_SPECIFIC after
	errors.

gcc/testsuite:
	* gcc.dg/union-duplicate-field.c: New test.

From-SVN: r263294

	PR c++/86706
	* class.c (build_base_path): Use currently_open_class.

	* g++.dg/template/pr86706.C: New test.

From-SVN: r263293

	* ChangeLog: Move entry ...
	* cp/ChangeLog: ... here.

From-SVN: r263292

This partially reverts r262482, at it broke canadian builds.

2018-08-03  Pierre-Marie de Rodat  <derodat@adacore.com>

gcc/ada/

	Reverts
	2018-07-06  Jim Wilson  <jimw@sifive.com>

	* Make-generated.in (treeprs.ads): Use $(GNATMAKE) instead of gnatmake.
	(einfo.h, sinfo.h, stamp-snames, stamp-nmake): Likewise.
	* gcc-interface/Makefile.in (xoscons): Likewise.

From-SVN: r263291

We couldn't vectorise:

  for (int j = 0; j < n; ++j)
    {
      for (int i = 0; i < 16; ++i)
	a[i] = (b[i] + c[i]) >> 1;
      a += step;
      b += step;
      c += step;
    }

at -O3 because cunrolli unrolled the inner loop and SLP couldn't handle
AVG_FLOOR patterns (see also PR86504).  The problem was some overly
strict checking of pattern statements compared to normal statements
in vect_get_and_check_slp_defs:

          switch (gimple_code (def_stmt))
            {
            case GIMPLE_PHI:
            case GIMPLE_ASSIGN:
	      break;

	    default:
	      if (dump_enabled_p ())
		dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
				 "unsupported defining stmt:\n");
	      return -1;
            }

The easy fix would have been to add GIMPLE_CALL to the switch,
but I don't think the switch is doing anything useful.  We only create
pattern statements that the rest of the vectoriser can handle, and the
other checks in this function and elsewhere check whether SLP is possible.

I'm also not sure why:

          if (!first && !oprnd_info->first_pattern
	      /* Allow different pattern state for the defs of the
		 first stmt in reduction chains.  */
	      && (oprnd_info->first_dt != vect_reduction_def

is necessary.  All that should matter is that the statements in the
node are "similar enough".  It turned out to be quite hard to find a
convincing example that used a mixture of pattern and non-pattern
statements, so bb-slp-pow-1.c is the best I could come up with.
But it does show that the combination of "xi * xi" statements and
"pow (xj, 2) -> xj * xj" patterns are handled correctly.

The patch therefore just removes the whole if block.

The loop also needed commutative swapping to be extended to at least
AVG_FLOOR.

This gives +3.9% on 525.x264_r at -O3.

2018-08-03  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* internal-fn.h (first_commutative_argument): Declare.
	* internal-fn.c (first_commutative_argument): New function.
	* tree-vect-slp.c (vect_get_and_check_slp_defs): Remove extra
	restrictions for pattern statements.  Use first_commutative_argument
	to look for commutative operands in calls to internal functions.

gcc/testsuite/
	* gcc.dg/vect/bb-slp-over-widen-1.c: Expect AVG_FLOOR to be used
	on vect_avg_qi targets.
	* gcc.dg/vect/bb-slp-over-widen-2.c: Likewise.
	* gcc.dg/vect/bb-slp-pow-1.c: New test.
	* gcc.dg/vect/vect-avg-15.c: Likewise.

From-SVN: r263290

	* src/c++11/system_error.cc
	(system_error_category::default_error_condition): Add workaround for
	ENOTEMPTY and EEXIST having the same value on AIX.
	* testsuite/19_diagnostics/error_category/system_category.cc: Add
	extra testcases for EDOM, EILSEQ, ERANGE, EEXIST and ENOTEMPTY.

From-SVN: r263289

	* Makefile.in (wide-int-range.o): New.
	* tree-vrp.c: Move all the wide_int_* functions to...
	* wide-int-range.cc: ...here.
	* tree-vrp.h: Move all the wide_int_* prototypes to...
	* wide-int-range.h: ...here.

From-SVN: r263288

If a target does not support exceptions, it can indicate this by returning
UI_NONE in TARGET_EXCEPT_UNWIND_INFO.  Currently the compiler still emits
exception tables for such a target.

This patch makes sure that no exception tables are emitted if the target does
not support exceptions.  This allows us to remove a workaround in
TARGET_ASM_BYTE_OP in the nvptx port.

Build on x86_64 with nvptx accelerator, and tested libgomp.

Build and reg-tested on x86_64.

2018-08-03  Tom de Vries  <tdevries@suse.de>

	* common/config/nvptx/nvptx-common.c (nvptx_except_unwind_info): Return
	UI_NONE.
	* config/nvptx/nvptx.c (TARGET_ASM_BYTE_OP): Remove define.
	* except.c (output_function_exception_table): Do early exit if
	targetm_common.except_unwind_info (&global_options) == UI_NONE.

From-SVN: r263287