This patch removes some duplication in rs6000/sysv4.h of macros found
in gnu-user.h that we want for linux.  Including gnu-user.h will mean
powerpc doesn't miss updates to that file.

	* config.gcc (powerpc*-*-freebsd*, powerpc-*-netbsd*),
	(powerpc-*-eabisimaltivec*, powerpc-*-eabisim*, powerpc-*-elf*),
	(powerpc-*-eabialtivec*, powerpc-*-eabi*, powerpc-*-rtems*),
	(powerpc-wrs-vxworks*, powerpc-*-lynxos*, powerpcle-*-elf*),
	(powerpcle-*-eabisim*, powerpcle-*-eabi*): Add gnu-user.h to tm_file.
	* config/rs6000/freebsd.h (CPLUSPLUS_CPP_SPEC),
	(LINK_GCC_C_SEQUENCE_SPEC): Undef.
	(ASM_APP_ON, ASM_APP_OFF): Don't define.
	* config/rs6000/freebsd64.h (ASM_APP_ON, ASM_APP_OFF): Don't define.
	* config/rs6000/lynx.h (ASM_APP_ON, ASM_APP_OFF): Don't define.
	* config/rs6000/linux64.h (LINK_GCC_C_SEQUENCE_SPEC): Define.
	* config/rs6000/netbsd.h (CPLUSPLUS_CPP_SPEC),
	(LINK_GCC_C_SEQUENCE_SPEC): Undef.
	* config/rs6000/rtems.h (LINK_GCC_C_SEQUENCE_SPEC): Define.
	* config/rs6000/sysv4.h (GNU_USER_TARGET_CRTI): Redefine.
	(GNU_USER_TARGET_CRTN): Redefine.
	(CC1_SPEC): Use GNU_USER_TARGET_CC1_SPEC.
	(LIB_LINUX_SPEC): Use GNU_USER_TARGET_LIB_SPEC.
	(CRTOFFLOADBEGIN, CRTOFFLOADEND): Don't define.
	(STARTFILE_LINUX_SPEC): Define as GNU_USER_TARGET_STARTFILE_SPEC.
	(ENDFILE_LINUX_SPEC): Define as GNU_USER_TARGET_ENDFILE_SPEC.
	(UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER): Don't define.
	(LINK_EH_SPEC): Don't define.

From-SVN: r266496

    
    Fixes https://gcc.gnu.org/PR88135
    
    Reviewed-on: https://go-review.googlesource.com/c/150897

From-SVN: r266495

gcc/ChangeLog:

	PR 87756
	* expr.c (string_constant): Handle top-level decls of all character
	types and subobjects of narrow character type.

gcc/testsuite/ChangeLog:

        PR 87756
	* gcc.dg/warn-sprintf-no-nul-2.c: Move incomplete tests from here...
	* gcc.dg/warn-sprintf-no-nul-3.c: ...to here and complete them.

From-SVN: r266494

Using the macros in config/linux.h rather than duplicating them helps
stop future bitrot, and repairs existing bitrot (4 choices for libc in
linux.h, fewer in the rs6000 files not that it matters much).  Also
fixes the fact that __gnu_linux__ was always defined rather than just
when glibc was the libc of choice.

	* config.gcc (powerpc*-*-linux*): Add linux.h to tm_file.
	* config/rs6000/linux.h (TARGET_OS_CPP_BUILTINS): Use
	GNU_USER_TARGET_OS_CPP_BUILTINS.
	(RS6000_ABI_NAME): Define.
	* config/rs6000/linux64.h (TARGET_OS_CPP_BUILTINS): Use
	GNU_USER_TARGET_OS_CPP_BUILTINS.
	(MUSL_DYNAMIC_LINKER32): Undef before defining.
	(UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64): Don't define.
	(CHOOSE_DYNAMIC_LINKER): Don't define.
	(GNU_USER_DYNAMIC_LINKER32, GNU_USER_DYNAMIC_LINKER64): Don't define.
	* config/rs6000/sysv4.h (MUSL_DYNAMIC_LINKER): Undef before defining.
	(CHOOSE_DYNAMIC_LINKER, GNU_USER_DYNAMIC_LINKER): Only define when
	not already defined.
	(CPP_OS_LINUX_SPEC): Remove defines and asserts handled by
	TARGET_OS_CPP_BUILTINS.

From-SVN: r266493

	* typeck.c (cp_build_binary_op): Call cp_save_expr instead of
	save_expr.

	* g++.dg/cpp0x/pr88120.C: New test.

From-SVN: r266492

2018-11-26  Iain Buclaw  <ibuclaw@gdcproject.org>

	* update-copyright.py (TestsuiteFilter): Skip .d tests.
	(LibPhobosFilter): Add filter for upstream D sources.
	(GCCCopyright): Add D Language Foundation as external author.
	(GCCCmdLine): Add libphobos.

From-SVN: r266491

    
    Create a framework for putting function bodies in export data.  At
    present only empty functions will be put there, and they will be
    ignored on import.  Later patches will get this to the point of
    supporting inlining of (some) functions defined in other packages.
    
    Reviewed-on: https://go-review.googlesource.com/c/150061

From-SVN: r266490

2018-11-26  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	Fix tests for 16-bit int.

	gcc/testsuite/ChangeLog:

	* c-c++-common/Warray-bounds-3.c (test_strcpy_bounds): Use long instead
	of int if __SIZEOF_INT__ == 2.
	* c-c++-common/Wrestrict.c: Test memcpy range with smaller length when
	__SIZEOF_SIZE_T < 4.
	* c-c++-common/rotate-8.c: Define smaller "large" constant when
	__SIZEOF_INT__ == 2.
	* gcc.dg/pr53037-1.c: Add dg-require-effective-target int32.
	* gcc.dg/pr53037-2.c: Likewise.
	* gcc.dg/pr53037-3.c: Likewise.
	* gcc.dg/pr85512.c: Likewise.
	* gcc.dg/pr59963-2.c: Add dg-warning for int16.
	* gcc.dg/sancov/cmp0.c: Explicitly use __INT32_TYPE__ instead of int.
	* gcc.dg/tree-ssa/addadd.c: Fix dg-final directives for int16.
	* gcc.dg/tree-ssa/pr79327-2.c: Likewise.
	* gcc.dg/tree-ssa/builtin-sprintf-2.c: Filter out invalid tests for
	int16.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-10.c: Update sizes in dg-warning
	directives for int16.

From-SVN: r266489

2018-11-26  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	gcc/ChangeLog:

	* doc/sourcebuild.texi: Document check_effective_target_newlib_nano_io.

	gcc/testsuite/ChangeLog:

	* lib/target-supports.exp (check_effective_target_newlib_nano_io): New. 
	* gcc.c-torture/execute/920501-8.c: Register undefined linker symbol
	_printf_float for newlib_nano_io target.
	* gcc.c-torture/execute/930513-1.c: Likewise.
	* gcc.dg/torture/builtin-sprintf.c: Likewise.
	* gcc.c-torture/execute/ieee/920810-1.x: New.

From-SVN: r266488

	PR target/88195
	* config/i386/i386.c (def_builtin2): If tcode == VOID_FTYPE_UINT64
	and !TARGET_64BIT, return NULL_TREE.

	* gcc.target/i386/pr88195.c: New test.

From-SVN: r266487

	PR testsuite/88090
	* obj-c++.dg/attributes/method-nonnull-1.mm (my_size_t): New typedef.
	(MyArray::removeObjectAtIndex): Use my_size_t instead of size_t and
	expect it in diagnostics.

From-SVN: r266486

	PR c++/86900
	* dwarf2out.c (secname_for_decl): For functions with
	DECL_SECTION_NAME if in_cold_section_p, try to return
	current_function_section's name if it is a named section.

	* g++.dg/debug/dwarf2/pr86900.C: New test.

From-SVN: r266485

	PR target/58397
	* config.host (*-*-netbsd*): Use x-netbsd and host-netbsd.o.
	* config/x-netbsd: New file.
	* config/host-netbsd: New file.

From-SVN: r266484

2018-11-26  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	gcc/ChangeLog:

	* doc/sourcebuild.texi: Document check_effective_target_size20plus.
	Clarify documentation for check_effective_target_size32plus.

	gcc/testsuite/ChangeLog:

	* gcc.c-torture/compile/20151204.c: Add dg-require-effective-target
	size20plus.
	* gcc.dg/pr34225.c: Likewise.
	* gcc.dg/pr40971.c: Likewise.
	* gcc.dg/pr69071.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-10.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-2.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-3.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-5.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-6.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-7.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-8.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-9.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-11.c: Add dg-require-effective-target
	size32plus.
	* gcc.dg/Walloc-size-larger-than-4.c: Likewise.
	* gcc.dg/Walloc-size-larger-than-5.c: Likewise.
	* gcc.dg/Walloc-size-larger-than-6.c: Likewise.
	* gcc.dg/Walloc-size-larger-than-7.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-1.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-1b.c: Likewise.
	* lib/target-supports.exp (check_effective_target_size20plus): New.
	(check_effective_target_size32plus): Update comment.

From-SVN: r266483

	* testsuite/Makefile.am (AUTOMAKE_OPTIONS): Drop dejagnu.
	(RUNTEST): Don't define.
	(RUNTESTDEFAULTFLAGS): Add.
	(check-DEJAGNU, site.exp, distclean-DEJAGNU): New goals.
	(distclean-am): Depend on distclean-DEJAGNU.
	(check-am): If -j% option is present in MFLAGS and if
	`getconf _NPROCESSORS_ONLN` is more than 8, export OMP_NUM_THREADS=8.
	(.PHONY): Add check-DEJAGNU and distclean-DEJAGNU.
	* testsuite/Makefile.in: Regenerated.

From-SVN: r266482

2018-11-26  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/rs6000-string.c (expand_cmp_vec_sequence): Rename
	and modify expand_strncmp_vec_sequence.
	(emit_final_compare_vec): Rename and modify emit_final_str_compare_vec.
	(generate_6432_conversion): New function.
	(expand_block_compare): Add support for vsx.
	(expand_block_compare_gpr): New function.
	* config/rs6000/rs6000.opt (rs6000_block_compare_inline_limit): Increase
	default limit to 63 because of more compact vsx code.

From-SVN: r266481

	PR target/88178
	* config/i386/i386.c (dbx_register_map): Use IGNORED_DWARF_REGNUM
	for registers for which no debug information can be generated.
	Use INVALID_REGNUM for non-existent registers.
	(dbx64_register_map): Ditto.
	(svr4_dbx_register_map): Ditto.

testsuite/ChangeLog:

	PR target/88178
	* gcc.target/pr88178.c: New test.

From-SVN: r266480

2018-11-26  Sandra Loosemore  <sandra@codesourcery.com>

	PR c/57182

	gcc/
	* doc/invoke.texi (Optimize Options): Document that
	-freorder-functions also uses "hot" and "cold" attributes.

From-SVN: r266473

	* config/aarch64/aarch64.c (aarch64_mangle_type): Fix typo in comment.

From-SVN: r266472

The mul64 attribute in types.md causes some confusion as it is used to represent
aarch32 instructions that do widening multiplication to generate 32->64 bit results.
But these types are shared with aarch64, which has native 64-bit multiplication operations.

Those are currently not properly represented, which I will fix in follow-up patches.
For now, this patch renames the mul64 attribute to widen_mul64 to more clearly communicate its meaning.

It mechanically updates all users of that name in config/arm/ (there are no users in config/aarch64).
There is thus no change in behaviour.

	* config/arm/types.md (mul64): Rename to...
	(widen_mul64): ... This.
	* config/arm/arm-generic.md: Rename mul64 to widen_mul64.
	* config/arm/cortex-a15.md: Likewise.
	* config/arm/cortex-a5.md: Likewise.
	* config/arm/cortex-a53.md: Likewise.
	* config/arm/cortex-a57.md: Likewise.
	* config/arm/cortex-a7.md: Likewise.
	* config/arm/cortex-m4.md: Likewise.
	* config/arm/exynos-m1.md: Likewise.
	* config/arm/marvell-pj4.md: Likewise.
	* config/arm/xgene1.md: Likewise.

From-SVN: r266471

When throwing an Exception in the Fiber the backtrace generation
crashes.  This happens because backtrace does not func the stack bottom.
Using '.cfi_undefined x30' tells the debug info that the value in the lr
is unknown, which seems to be the nicest way to stop the unwinder.
Setting x30 to 0 is another option, however it still creates one invalid
frame in gdb, so the .cfi variant is used here instead.

Backport from upstream druntime 2.083.

Reviewed-on: https://github.com/dlang/druntime/pull/2308

From-SVN: r266470

2018-11-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/88182
	* tree-vect-loop.c (vectorizable_reduction): Pick up single
	correct reduc_def_info.
	* tree-vect-slp.c (vect_analyze_slp_instance): Set
	STMT_VINFO_REDUC_DEF of the first stmt.

	libgomp/
	* testsuite/libgomp.c++/pr88182.C: New testcase.

From-SVN: r266467

gcc/ChangeLog:

2018-11-26  Andreas Krebbel  <krebbel@linux.ibm.com>

	* doc/invoke.texi: Document z14/arch12 -march option.

From-SVN: r266462

2018-11-26  Matthias Klose <doko@ubuntu.com>

        PR ada/88191
        * libgnarl/s-linux__alpha.ads: Define SIGSYS.

From-SVN: r266459

2018-11-26  Matthias Klose  <doko@ubuntu.com>

        * jit.dg/test-long-names.c: Fix build with -Wformat-security.

From-SVN: r266454

	* testsuite/26_numerics/complex/requirements/more_constexpr.cc: Fix
	failure on targets without __float128.

From-SVN: r266450

re PR c/57166 (Manual no longer documents -Wmissing-noreturn alias for -Wsuggest-attribute=noreturn)

2018-11-25  Sandra Loosemore  <sandra@codesourcery.com>

	PR c/57166

	gcc/
	* doc/invoke.texi (Option Summary): Add -Wmissing-noreturn.
	(Warning Options): Likewise.

From-SVN: r266446

2018-11-25  Sandra Loosemore  <sandra@codesourcery.com>

	PR web/79738

	gcc/
	* doc/extend.texi (Common Function Attributes): Clarify that
	functions with "const" attribute can read const global variables.

From-SVN: r266445

From-SVN: r266444

Nothing references these macros.

	* config/rs6000/rs6000.h (OBJECT_PEF, TARGET_MACOS): Delete.

From-SVN: r266441

re PR other/54265 (Documentation of "preferred attribute syntax for Types" contradicts examples in info.)

2018-11-25  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/54265

	gcc/
	* doc/extend.texi (Common Variable Attributes): Use preferred
	placement of type attributes in examples, plus whitespace fixes.
	(Type Attributes): Clarify why placement of attributes
	immediately after struct/union/enum keyword is preferred.
	(Common Type Attributes): Use preferred placement of type
	attributes in examples, plus more whitespace fixes.

From-SVN: r266440

From-SVN: r266439

	gcc/testsuite:
	* lib/target-supports.exp (check_compile): Handle D.
	(check_effective_target_d_runtime): New proc.
	* lib/gdc-dg.exp (gdc-dg-test): Demote link and run tests to
	compile unless d_runtime.
	* gdc.dg/runnable.d: Skip unless d_runtime.
	* gdc.dg/lto/lto.exp: Require d_runtime to run tests.

	gcc:
	* doc/sourcebuild.texi (Effective-Target Keywords, Environment
	attributes): Document d_runtime.

From-SVN: r266438

2018-11-25  Vladimir Makarov  <vmakarov@redhat.com>

	PR bootstrap/88157
	* ira-costs.c (record_operand_costs): Initiate register move cost
	for mode.

From-SVN: r266435

From-SVN: r266434

gcc/d/ChangeLog:

2018-11-24  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR d/87866
	* d-incpath.cc (add_globalpaths): Use lrealpath to get canonical name.
	(add_filepaths): Likewise.

From-SVN: r266429

2018-11-24  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/88143
	* resolve.c (resolve_variable): Check for associate names with
	NULL target.

2018-11-24  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/88143
	* gfortran.dg/associate_46.f90: New test.

From-SVN: r266428

	PR fortran/888143
	* resolve.c (resolve_variable): Check for associate names with
	NULL target.

2018-11-24  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/888143
	* gfortran.dg/associate_46.f90: New test.

From-SVN: r266427

	PR rtl-optimization/87468
	* tree-ssa-threadupdate.c (create_block_for_threading): Clear
	EDGE_IGNORE on all outgoing edges of the duplicate block.

From-SVN: r266426

From-SVN: r266425