2018-06-07  Paul Koning  <ni1d@arrl.net>

gcc/

	* compare-elim.c (try_merge_compare): Don't merge compare if
	address contains a side effect.
	(try_eliminate_compare): Likewise.

gcc/testsuite/

	* gcc.c-torture/compile/20180605-1.c: New test.

From-SVN: r261287

2018-06-07  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/86045
	* simplify.c (gfc_simplify_mod): Re-arrange code to test whether
	'P' is zero and issue an error if it is.

2018-06-07  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/86045
	* gfortran.dg/pr86045.f90: New test.

From-SVN: r261286

    
    The compiler used to do variable initializer sorting by looping
    through all the initialized variables and, for each one, looping
    through all the initialized variables and checking for a dependency.
    For very large packages with thousands of initialized global
    variables, this quadratic loop could take quite a long time.
    
    Change the approach to first loop through all the initialized
    variables and fetch all the references to other variables from the
    initialization code.  Then, loop through them again and this time add
    a dependency for each referenced, initialized, variable, while
    checking for initialization loops.  We still have a nested loop, but
    this time the inner loop should normally be short--just the list of
    referenced variables, not the list of all variables.
    
    Reviewed-on: https://go-review.googlesource.com/116816

From-SVN: r261284

From-SVN: r261280

From-SVN: r261278

2018-06-07  Olivier Hainque  <hainque@adacore.com>

        * config/t-vxworks (LIBGCC_INCLUDES): Add
        -I$(MULTIBUILDTOP)../../gcc/include.
        * config/t-vxworks7: Likewise. Reformat a bit to match
        the t-vxworks layout.

From-SVN: r261273

2018-06-07  Olga Makhotina  <olga.makhotina@intel.com>

gcc/

        * config.gcc: Support "tremont".
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect "tremont".
        * config/i386/i386-c.c (ix86_target_macros_internal): Handle
        PROCESSOR_TREMONT.
        * config/i386/i386.c (m_TREMONT): Define.
        (processor_target_table): Add "tremont".
        (PTA_TREMONT): Define.
        (ix86_lea_outperforms): Add TARGET_TREMONT.
        (get_builtin_code_for_version): Handle PROCESSOR_TREMONT.
        (fold_builtin_cpu): Add M_INTEL_TREMONT, replace M_INTEL_GOLDMONT
        and M_INTEL_GOLDMONT_PLUS.
        (fold_builtin_cpu): Add "tremont".
        (ix86_add_stmt_cost): Add TARGET_TREMONT.
        (ix86_option_override_internal): Add "tremont".
        * config/i386/i386.h (processor_costs): Define TARGET_TREMONT.
        (processor_type): Add PROCESSOR_TREMONT.
        * config/i386/x86-tune.def: Add m_TREMONT.
        * doc/invoke.texi: Add tremont as x86 -march=/-mtune= CPU type.

gcc/testsuite/

        * gcc.target/i386/funcspec-56.inc: Test arch=tremont.

libgcc/

        * config/i386/cpuinfo.h (processor_types): Add INTEL_TREMONT.

From-SVN: r261270

msp430.c (msp430_mcu_name): Set the "i" in the symbol defined for msp430i* devices to be lower case.

	* gcc/config/msp430/msp430.c (msp430_mcu_name): Set the "i" in the
	symbol defined for msp430i* devices to be lower case.

	gcc/testsuite/gcc.target/msp430/
	* msp430i-device-symbol.c: New test.
	* msp430f-device-symbol.c: New test.
	* msp430.h: New test header file.

From-SVN: r261268

2018-06-07  Richard Biener  <rguenther@suse.de>

	* graphite-sese-to-poly.c (extract_affine): Avoid unneded
	wrapping.  Properly wrap the result of a BIT_NOT_EXPR.
	Properly wrap signed arithmetic if overflow wraps.

From-SVN: r261267

	* include/bits/regex.h (sub_match): Add noexcept to default
	constructor and length observer.
	(match_results): Add noexcept to default constructor and observers
	with no preconditions. Define destructor as defaulted.
	(operator==, operator!=, swap): Add noexcept.
	(regex_iterator): Add default member initializers and define default
	constructor and destructor as defaulted. Add noexcept to equality
	and dereference operators.

From-SVN: r261266

	PR tree-optimization/69615
	* tree-ssa-reassoc.c (optimize_range_tests_var_bound): If rhs2 is lhs
	of a cast from a same precision integral SSA_NAME in a bb dominated
	by first_bb, retry with rhs2 set to the rhs1 of the cast.  Don't emit
	cast to utype if rhs2 has already a compatible type.

	* gcc.dg/tree-ssa/pr69615.c: New test.

From-SVN: r261264

2018-06-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/85935
	* graphite-scop-detection.c (find_params_in_bb): Analyze
	condition operands with respect to the correct loop.  Assert
	the analysis doesn't fail.

	* gcc.dg/graphite/pr85935.c: New testcase.

From-SVN: r261263

	* src/c++11/debug.cc
	(_Safe_iterator_base::_M_detach()): Reset state only if needed.
	(_Safe_iterator_base::_M_detach_single()): Likewise.
	(_Safe_local_iterator_base::_M_detach()): Reset state only if needed.
	(_Safe_local_iterator_base::_M_detach_single()): Likewise.

From-SVN: r261262

2018-06-07  Martin Liska  <mliska@suse.cz>

	* libgcov-driver.c: Rename cs_all to all and assign it from
        all_prg.

From-SVN: r261261

2018-06-07  Martin Liska  <mliska@suse.cz>

        PR bootstrap/86057
	* libgcov-driver-system.c (replace_filename_variables): Use
        memcpy instead of mempcpy.
	(allocate_filename_struct): Do not allocate filename, allocate
        prefix and set it.
	(gcov_exit_open_gcda_file): Allocate memory for gf->filename
        here and properly copy content into it.
	* libgcov-driver.c (struct gcov_filename): Remove max_length
        field, change prefix from size_t into char *.
	(compute_summary): Do not calculate longest filename.
	(gcov_do_dump): Release memory of gf.filename after each file.
	* libgcov-util.c (compute_summary): Use new signature of
        compute_summary.
	(calculate_overlap): Likewise.

From-SVN: r261260

From-SVN: r261259

gcc/ChangeLog:

2018-06-04  Carl Love  <cel@us.ibm.com>

	* gcc/config/rs6000/vsx.md (first_match_index_<mode>): Calculate index
	using natural element order.  Use gen_lshrsi3 instead of gen_ashrsi3
	as it is slightly cheaper.
	(first_match_or_eos_index_<mode>):
	Calculate index using natural element order.
	(first_match_index_<mode>):
	Calculate index using natural element order.
	(first_match_or_eos_index_<mode>):
	Calculate index using natural order.
	(define_insn vclzlsbb): Change to define_insn vclzlsbb_<mode>.
	for BE and LE modes.
	* gcc/config/rs6000/rs6000-c.c: Rename P9V_BUILTIN_VCLZLSBB,
	P9V_BUILTIN_VCLZLSBB_V16QI.
	* gcc/config/rs6000/rs6000-builtin.def: Make VCLZLSBB mode
	specific.

gcc/testsuite/ChangeLog:

2018-06-04  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtins-8-p9-runnable.c: Add additional
	debug print statements.  Fix a few formating issues.

From-SVN: r261255

extend.texi (PowerPC AltiVec Built-in Functions): Adjust indentation and line wrap for many prototypes.

gcc/ChangeLog:

2018-06-06  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* doc/extend.texi (PowerPC AltiVec Built-in Functions): Adjust
	indentation and line wrap for many prototypes.  Add missing
	@smallexample directives around block of prototypes for vec_xl and
	vec_xst.

From-SVN: r261254

re PR target/85657 (Make __ibm128 a separate type, even if long double uses the IBM double-double format)

[gcc]
2018-06-06  Michael Meissner  <meissner@linux.ibm.com>

	PR target/85657
	* config/rs6000/rs6000-builtin.def (BU_IBM128_2): New helper
	macro for __ibm128 built-in functions.
	(PACK_IF): Add __ibm128 pack/unpack functions.
	(UNPACK_IF): Likewise.
	* config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Do not
	enable long double built-in functions if long double is IEEE
	128-bit floating point.
	(rs6000_invalid_builtin): Update long double built-in function
	error message.
	(rs6000_expand_builtin): For PACK_IF and UNPACK_IF built-in
	functions, adjust the built-in function to use the long double
	built-in function if __ibm128 and long double are the same type.
	* doc/extend.texi (PowerPC builtins): Update documention for
	__builtin_{,un}pack_longdouble.  Add documentation for
	__builtin_{,un}pack_ibm128.

[gcc/testsuite]
2018-06-06  Michael Meissner  <meissner@linux.ibm.com>

	PR target/85657
	* gcc.target/powerpc/pr85657-4.c: New tests.
	* gcc.target/powerpc/pr85657-5.c: Likewise.
	* gcc.target/powerpc/pr85657-6.c: Likewise.

From-SVN: r261253

gcc/testsuite/ChangeLog:

2018-06-06  Carl Love  <cel@us.ibm.com>
	* gcc.target/powerpc/builtins-7-p9-runnable.c: Change first
	argument to vui_arg.

From-SVN: r261249

2018-06-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85641
	* frontend-passes.c (is_fe_temp): Add prototype.
	(realloc_string_callback): Early return for frontend-generated
	temporary.

2018-06-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85641
	* gfortran.dg/realloc_on_assign_30.f90: New test.

From-SVN: r261248

gcc/testsuite/ChangeLog:

2018-06-06  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtins-3.c: Move tests requiring -mvsx
	to builtins-4.c.
	* gcc.target/powerpc/builtins-4.c: New test file for tests
	that need -mvsx.

From-SVN: r261247

re PR target/85657 (Make __ibm128 a separate type, even if long double uses the IBM double-double format)

[gcc]
2018-06-06  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_passes_ieee128): New boolean to
	track if we pass or return IEEE 128-bit floating point.
	(ieee128_mangling_gcc_8_1): New boolean to say whether to generate
	C++ mangling that is compatible with GCC 8.1.
	(TARGET_ASM_GLOBALIZE_DECL_NAME): Override target hook.
	(init_cumulative_args): Note if we pass or return IEEE 128-bit
	floating point types.
	(rs6000_function_arg_advance_1): Likewise.
	(rs6000_mangle_type): Optionally generate mangled names that match
	what GCC 8.1 generated for IEEE 128-bit floating point types.
	(rs6000_globalize_decl_name): If we have an external function that
	passes or returns IEEE 128-bit types, generate a weak reference
	from the mangled name used in GCC 8.1 to the current mangled
	name.

[gcc]
2018-06-05  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_init_builtins): Make __ibm128 use
	the long double type if long double is IBM extended double.  Make
	__float128 use the long double type if long double is IEEE 128-bit.

[gcc/testsuite]
2018-06-05  Michael Meissner  <meissner@linux.ibm.com>

	PR target/85657
	* g++.dg/pr85657.C: Only test whether __ibm128 and long double can
	be used in templates.  Don't check for them in overloaded functions.

From-SVN: r261246

	* include/bits/shared_ptr_base.h (__shared_count): Remove redundant
	move of const value.

From-SVN: r261245

	gcc/
	* config/riscv/riscv.c (enum riscv_privilege_levels): New.
	(struct machine_function): New field interrupt_mode.
	(riscv_handle_type_attribute): New function.  Add forward declaration.
	(riscv_attribute_table) <interrupt>: Use riscv_handle_type_attribute.
	(riscv_expand_epilogue): Check interrupt_mode field.
	(riscv_set_current_function): Check interrupt attribute args and
	set interrupt_mode field.
	* config/riscv/riscv.md (UNSPECV_SRET, UNSPECV_URET): New.
	(riscv_sret, riscv_uret): New.
	* doc/extend.texi (RISC-V Function Attributes) <interrupt>: Document
	new arguments to interrupt attribute.

	gcc/testsuite/
	* gcc.target/riscv/interrupt-5.c (sub3): Add new test.
	* gcc.target/riscv/interrupt-mmode.c: New.
	* gcc.target/riscv/interrupt-smode.c: New.
	* gcc.target/riscv/interrupt-umode.c: New.

From-SVN: r261244

	PR target/63177
	* /config/rs6000/rs6000.h (ASM_CPU_SPEC): Add support for -mpower9.
	Don't handle -mcpu=power8 if -mpower9-vector is also used.

From-SVN: r261243

	PR c++/86068
	* c-cppbuiltin.c (c_cpp_builtins): Fix a typo, set
	__cpp_transactional_memory to 201500 instead of 210500.

	* include/bits/c++config: Check __cpp_transactional_memory >= 201500L
	rather than __cpp_transactional_memory >= 201505L.

From-SVN: r261242

	PR c++/85977
	* pt.c (unify): If ELTTYPE has no deducible template parms, skip
	deduction from the list elements.
	(type_unification_real): Check convertibility of list elements.

	* g++.dg/cpp0x/initlist102.C: New test.
	* g++.dg/cpp0x/initlist103.C: New test.
	* g++.dg/cpp0x/initlist104.C: New test.

From-SVN: r261241

	* parser.c (cp_parser_init_statement): Don't clobber *decl after
	pedwarn.

From-SVN: r261239

c-family/
	* c-warn.c (warn_for_memset): Don't crash on incomplete element type.
cp/
	* semantics.c (finish_call_expr): Call warn_for_memset here.
	* parser.c (cp_parser_postfix_expression): Not here.
	(literal_integer_zerop): No longer static.
	* pt.c (build_non_dependent_expr): Don't wrap CONST_DECL.

From-SVN: r261238

    
    Adjust the hash and string fields computed by StructOf to match the
    values that the compiler computes for a struct type with the same
    field names and types.  This makes the reflect code match the
    compiler's Type::hash_for_method and Type::reflection methods.
    
    Fixes golang/go#25284
    
    Reviewed-on: https://go-review.googlesource.com/116515

From-SVN: r261235

gcc/ChangeLog:

2018-06-06  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* config/rs6000/rs6000-builtin.def (VSX_BUILTIN_VEC_LD,
	VSX_BUILTIN_VEC_ST): Add comment to explain non-traditional uses.
	* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
	several redundant entries.

From-SVN: r261234

Eliminate an "as_a <rtx_insn *>()" cast.

gcc/ChangeLog:
	* config/i386/i386-protos.h (ix86_expand_call): Strengthen return
	type from "rtx" to "rtx_insn *".
	* config/i386/i386.c (ix86_expand_split_stack_prologue): Likewise
	for local "call_insn", removing cast.
	(ix86_expand_call): Likewise, introducing a "call_insn" local.

From-SVN: r261233

	PR tree-optimization/86066
	* gimple-ssa-store-merging.c (process_store): Do not bypass BIT_NOT_EXPR
	for BIT_INSERT_EXPR stores.

From-SVN: r261232

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

	PR tree-optimization/86062
	* tree-ssa-sccvn.c (vn_reference_lookup_3): Handle arbitrary
	component refs ontop
	of to be offsetted base.

	* g++.dg/tree-ssa/pr86062.C: New testcase.

From-SVN: r261231

	* gcc/config/msp430/msp430.c (msp430_attr): Allow interrupt handlers
	to be static and remove check on interrupt attribute name.

	gcc/testsuite/gcc.target/msp430/
	* function-attributes-4.c: New test.
	* static-interrupts.c: New test.

From-SVN: r261229

	PR libstdc++/86008
	* include/bits/quoted_string.h (_Quoted_string<basic_string_view, C>):
	Define new partial specialization.
	* include/std/iomanip (quoted(basic_string_view<C,T>, C, C)): Define
	new overload.
	(operator<<(basic_ostream<C,T>&, const _Quoted_string<S,C>&)): Use
	value not reference for iteration.
	* testsuite/27_io/manipulators/standard/char/quoted.cc: Adjust
	comment.
	* testsuite/27_io/manipulators/standard/char/quoted_sv.cc: New test.
	* testsuite/27_io/manipulators/standard/wchar_t/quoted.cc: Adjust
	comment.

From-SVN: r261227

From-SVN: r261226

extend.texi (PowerPC AltiVec Built-in Functions): Remove volatile qualifier from vec_lvsl and vec_lvsr argument prototypes.

gcc/ChangeLog:

2018-06-05  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* doc/extend.texi (PowerPC AltiVec Built-in Functions): Remove
	volatile qualifier from vec_lvsl and vec_lvsr argument prototypes.

From-SVN: r261220

2018-06-05  Steve Ellcey  <sellcey@cavium.com>

	PR target/79924
	* gcc.target/aarch64/mgeneral-regs_1.c: Update error message.
	* gcc.target/aarch64/mgeneral-regs_2.c: Ditto.
	* gcc.target/aarch64/mgeneral-regs_3.c: Ditto.
	* gcc.target/aarch64/nofp_1.c: Ditto.

From-SVN: r261218