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

	PR fortran/78392
	* expr.c (gfc_is_constant_expr): Specification functions are not
	compile-time constants. Update documentation (add reference to F08
	standard), add a FIXME.
	(external_spec_function): Add reference to F08 standard.
	* resolve.c (resolve_fl_variable): Ditto.

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

	PR fortran/78392
	* gfortran.dg/constant_shape.f90: New test case.

From-SVN: r243580

Example:

  (zero_extract:DI (reg:SI)
                   (const_int 24)
                   (const_int 0))

-->

  (and:DI (subreg:DI (lshiftrt:SI (reg:SI) (const_int 8))
                     0)
          (const_int 16777215))


2016-12-12  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	* combine.c (change_zero_ext): Handle mode expanding zero_extracts.

From-SVN: r243578

re PR c++/78647 (ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: tree check: expected tree_list, have error_mark in get_attribute_name, at attribs.c:664))

	PR c++/78647
	* c-common.c (attribute_fallthrough_p): Return false for
	error_mark_node.

	* g++.dg/parse/error58.C: New.

From-SVN: r243575

Fix for PR preprocessor/78680

PR preprocessor/78680 identifies a crash when attempting to issue
a -Wformat warning, where the format string includes a string token
split across multiple physical source lines via backslash-continued
lines.

The issue is that libcpp is generating bogus range information for
such tokens.

For example, in:

void fn1() {
  __builtin_printf("\
     %ld.\n\
        2\n"); };

the range of the string token is printed as:

   __builtin_printf("\
                    ^~

whereas the range ought to be:

  __builtin_printf("\
                   ^~
     %ld.\n\
     ~~~~~~~
        2\n"); };
        ~~~~

The root cause is that the line notes expressing the update
of the buffer in lex.c aren't yet updated when the end-point of
the token is computed

3095	    tok_range.m_finish
3096	      = linemap_position_for_column (pfile->line_table,
3097					     CPP_BUF_COLUMN (buffer, buffer->cur));

so that the physical line is still regarded as that of the start
of the token, and, where CPP_BUF_COLUMN uses (BUF)->line_base,
line_base is still the location of the first physical line in the
and hence the column information is too large (as if it were the
offset in the *logical* line).

(the printed range is somewhat misleading; the actual buggy range
extends beyond the "\ in the line, but within diagnostic-show-locus.c
layout::print_annotation_line only prints up to the xbound set by
layout::print_source_line and so truncates most of the buggy range).

The fix is to ensure that line notes are handled before calculating
the end-point of the token range.

This leads to the range for the string token being correctly
computed, as:

  __builtin_printf("\
                   ^~
     %ld.\n\
     ~~~~~~~
        2\n"); };
        ~~~~

and this leads to get_substring_ranges_for_loc failing gracefully,
rather than crashing.

gcc/testsuite/ChangeLog:
	PR preprocessor/78680
	* gcc.dg/format/pr78680.c: New test case.
	* gcc.dg/plugin/diagnostic-test-expressions-1.c
	(test_multiline_token): New function.
	* gcc.dg/plugin/diagnostic-test-string-literals-1.c
	(test_backslash_continued_logical_lines): New function.

libcpp/ChangeLog:
	PR preprocessor/78680
	* lex.c (_cpp_lex_direct): Ensure line notes are processed before
	computing the end-point of the token.

From-SVN: r243567

	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

	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

    * 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

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

From-SVN: r243555

	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

	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

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

From-SVN: r243548

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

From-SVN: r243546

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

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

From-SVN: r243544

gcc/testsuite/

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

From-SVN: r243542

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

	* 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

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

From-SVN: r243539

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

From-SVN: r243537

[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

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

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

	* 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

	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

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

From-SVN: r243528

	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

From-SVN: r243523

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

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

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

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

	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

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