2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69499
	* match.c (gfc_match_select_type):  SELECT TYPE is an executable 
	statement, and cannot appear in MODULE or SUBMODULE scope.

2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69499
	* gfortran.dg/pr69499.f90: New test.
	* gfortran.dg/module_error_1.f90: Update dg-error string.

From-SVN: r272482

2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69398
	* decl.c (attr_decl): Check for duplicate DIMENSION attribute for a
	CLASS entity.

2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69398
	* gfortran.dg/pr69398.f90: New test.

From-SVN: r272481

2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/87907
	* resolve.c (resolve_contained_fntype): Do not dereference a NULL
	pointer.

2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/87907
	* gfortran.dg/pr87907.f90: New testcase.

From-SVN: r272480

2019-06-19  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin-driver.c (darwin_driver_init): Fix off-by-one errors
        in computing the number of options to be moved.

From-SVN: r272479

	*  config/arm/netbsd-elf.h (SYSARCH_ARM_SYNC_ICACHE): New definition.
	(CLEAR_INSN_CACHE) Use it.

From-SVN: r272478

	* include/std/numeric (reduce(Iter, Iter, T, BinOp)): Fix value
	category used in invocable check.
	(reduce(Iter, Iter, T)): Pass initial value as rvalue.
	* testsuite/26_numerics/reduce/2.cc: New test.

From-SVN: r272477

    
    runtime.concatstring{2,3,4,5} are just wrappers of concatstrings.
    These wrappers don't provide any benefit, at least in the C
    calling convention we use, where passing arrays by value isn't an
    efficient thing. Change it to always use concatstrings.
    
    Also, the cap field of the slice passed to concatstrings is not
    necessary. So change it to pass a pointer and a length directly,
    which is more efficient than passing a slice header by value.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/182539

From-SVN: r272476

	* config/i386/i386.md (cmpstrnsi): Remove dead code.

From-SVN: r272474

This fixes and simplifies the setjmp and non-local goto implementation.
Currently the virtual frame pointer is saved when using __builtin_setjmp or
a non-local goto.  Depending on whether a frame pointer is used, this may
either save SP or FP with an immediate offset.  However the goto or longjmp
always updates the hard frame pointer.

A receiver veneer in the original function then assigns the hard frame pointer
to the virtual frame pointer, which should, if it works correctly, again assign
SP or FP.  However the special elimination code in eliminate_regs_in_insn
doesn't do this correctly unless the frame pointer is used, and even if it
worked by writing SP, the frame pointer would still be corrupted.

A much simpler implementation is to always save and restore the hard frame
pointer.  This avoids 2 redundant instructions which add/subtract the virtual
frame offset.  A large amount of code can be removed as a result, including all
implementations of TARGET_BUILTIN_SETJMP_FRAME_VALUE (all of which already use
the hard frame pointer).  The expansion of nonlocal_goto on PA can be simplied
to just restore the hard frame pointer. 

This fixes the most obvious issues, however there are still issues on targets
which define HARD_FRAME_POINTER_IS_FRAME_POINTER (arm, mips).
Each function could have a different hard frame pointer, so a non-local goto
may restore the wrong frame pointer (TARGET_BUILTIN_SETJMP_FRAME_VALUE could
be useful for this).

The i386 TARGET_BUILTIN_SETJMP_FRAME_VALUE was incorrect: if stack_realign_fp
is true, it would save the hard frame pointer value but restore the virtual
frame pointer which according to ix86_initial_elimination_offset can have a
non-zero offset from the hard frame pointer.

The ia64 implementation of nonlocal_goto seems incorrect since the helper
function moves the the frame pointer value into the static chain register
(so this patch does nothing to make it better or worse).

AArch64 + x86-64 bootstrap OK, new test passes on AArch64, x86-64 and Arm.

gcc/
	PR middle-end/84521
	* builtins.c (expand_builtin_setjmp_setup): Save
	hard_frame_pointer_rtx.
	(expand_builtin_setjmp_receiver): Do not emit sfp = fp move since we
	restore fp.
	* function.c (expand_function_start): Save hard_frame_pointer_rtx for
	non-local goto.
	* lra-eliminations.c (eliminate_regs_in_insn): Remove sfp = fp
	elimination code.
	(remove_reg_equal_offset_note): Remove unused function.
	* reload1.c (eliminate_regs_in_insn): Remove sfp = hfp elimination
	code.
	* config/arc/arc.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
	(arc_builtin_setjmp_frame_value): Remove function.
	* config/avr/avr.c  (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
	(avr_builtin_setjmp_frame_value): Remove function.
	* config/i386/i386.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
	(ix86_builtin_setjmp_frame_value): Remove function.
	* config/pa/pa.md (nonlocal_goto): Remove FP adjustment.
	* config/sparc/sparc.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
	(sparc_builtin_setjmp_frame_value): Remove function.
	* config/vax/vax.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
	(vax_builtin_setjmp_frame_value): Remove function.
	* config/xtensa/xtensa.c (xtensa_frame_pointer_required): Force frame
	pointer	if has_nonlocal_label.

testsuite/
	PR middle-end/84521
	* gcc.c-torture/execute/pr84521.c: New test.

From-SVN: r272473

	* doc/md.texi: Document vec_shl_<mode> pattern.
	* optabs.def (vec_shl_optab): New optab.
	* optabs.c (shift_amt_for_vec_perm_mask): Add shift_optab
	argument, if == vec_shl_optab, check for left whole vector shift
	pattern rather than right shift.
	(expand_vec_perm_const): Add vec_shl_optab support.
	* optabs-query.c (can_vec_perm_var_p): Mention also vec_shl optab
	in the comment.
	* tree-vect-generic.c (lower_vec_perm): Support permutations which
	can be handled by vec_shl_optab.
	* tree-vect-stmts.c (scan_store_can_perm_p): New function.
	(check_scan_store): Use it.
	(vectorizable_scan_store): If target can't do normal permutations,
	try to use whole vector left shifts and if needed a VEC_COND_EXPR
	after it.
	* config/i386/sse.md (vec_shl_<mode>): New expander.

	* gcc.dg/vect/vect-simd-8.c: If main is defined, don't include
	tree-vect.h nor call check_vect.
	* gcc.dg/vect/vect-simd-9.c: Likewise.
	* gcc.dg/vect/vect-simd-10.c: New test.
	* gcc.target/i386/sse2-vect-simd-8.c: New test.
	* gcc.target/i386/sse2-vect-simd-9.c: New test.
	* gcc.target/i386/sse2-vect-simd-10.c: New test.
	* gcc.target/i386/avx2-vect-simd-8.c: New test.
	* gcc.target/i386/avx2-vect-simd-9.c: New test.
	* gcc.target/i386/avx2-vect-simd-10.c: New test.
	* gcc.target/i386/avx512f-vect-simd-8.c: New test.
	* gcc.target/i386/avx512f-vect-simd-9.c: New test.
	* gcc.target/i386/avx512f-vect-simd-10.c: New test.

From-SVN: r272472

	* omp-low.c (lower_rec_input_clauses): Handle references properly
	in inscan clauses.
	(lower_omp_scan): Likewise.
cp/
	* cp-gimplify.c (cp_genericize_r): Handle OMP_CLAUSE_{IN,EX}CLUSIVE
	like OMP_CLAUSE_SHARED.
testsuite/
	* g++.dg/vect/simd-3.cc: New test.
	* g++.dg/vect/simd-4.cc: New test.
	* g++.dg/vect/simd-5.cc: New test.

From-SVN: r272471

From-SVN: r272470

2019-06-19  Martin Liska  <mliska@suse.cz>

	* bench-stringop: New file.

From-SVN: r272469

    
    For string concatenation, string to/from byte or rune slice
    conversion, and int to string conversion, if the result does not
    escape, we can allocate a small (32-element, or 4-byte for int to
    string) buffer on stack, and pass it to the runtime function. If
    the result fits in the buffer, it doesn't need to do a heap
    allocation.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/182538

From-SVN: r272468

2019-06-19  Jim MacArthur  <jim.macarthur@codethink.co.uk>
	    Mark Eggleston  <mark.eggleston@codethink.com>

	PR fortran/89103
	* gfortran.texi: Add -fdec-blank-format-item
	* invoke.texi: Add option to list of options.
	* invoke.texi: Add to section on Commas in FORMAT specifications.
	* io.c (check_format): At FMT_RPAREN goto finished if
	-fdec-blank-format-item otherwise set error string.
	* lang.opt: Add new option.
	* options.c (set_dec_flags): Add SET_BITFLAG for
	flag_dec_format_defaults.

	* gfortran.dg/dec_format_empty_item_1.f: New test.
	* gfortran.dg/dec_format_empty_item_2.f: New test.
	* gfortran.dg/dec_format_empty_item_3.f: New test.

Co-Authored-By: Mark Eggleston <mark.eggleston@codethink.com>

From-SVN: r272467

gcc/testsuite/ChangeLog:

2019-06-19  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

	* gcc.target/aarch64/pr88834.c: Move from here...
	* gcc.target/aarch64/sve/pr88834.c: ...to here.

From-SVN: r272466

gcc/ChangeLog:

2019-06-19  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

	* tree-ssa-address.c (preferred_mem_scale_factor): Handle when
	mem_mode is BLKmode.

From-SVN: r272465

From-SVN: r272464

    
    If a string([]byte) conversion is used immediately in a string
    concatenation, we don't need to copy the backing store of the
    byte slice, as the runtime function doesn't hold any reference
    to it.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/182437

	* go.dg/concatstring.go: New test.

From-SVN: r272460

These new (non-parallel) algorithms were added to C++17 along with the
parallel algorithms, but were missing from libstdc++.

	* include/bits/algorithmfwd.h: Change title of doc group.
	* include/bits/stl_algo.h (for_each_n): Add new C++17 algorithm from
	P0024R2.
	* include/bits/stl_numeric.h: Define doc group and add algos to it.
	* include/std/numeric (__is_random_access_iter): New internal trait.
	(reduce, transform_reduce, exclusive_scan, inclusive_scan)
	(transform_exclusive_scan, transform_inclusive_scan): Likewise.
	* testsuite/25_algorithms/for_each/for_each_n.cc: New test.
	* testsuite/26_numerics/exclusive_scan/1.cc: New test.
	* testsuite/26_numerics/inclusive_scan/1.cc: New test.
	* testsuite/26_numerics/reduce/1.cc: New test.
	* testsuite/26_numerics/transform_exclusive_scan/1.cc: New test.
	* testsuite/26_numerics/transform_inclusive_scan/1.cc: New test.
	* testsuite/26_numerics/transform_reduce/1.cc: New test.
	* testsuite/util/testsuite_iterators.h (test_container::size()): New
	member function.

From-SVN: r272459

Stack pointer adjustment code in prologue missed a case of no
callee-saved registers and a stack frame size bigger than 128 bytes.
Handle that case.

This fixes the following gcc tests with call0 ABI:
  gcc.c-torture/execute/stdarg-2.c
  gcc.dg/torture/pr55882.c
  gcc.dg/torture/pr57569.c

2019-06-18  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
	* config/xtensa/xtensa.c (xtensa_expand_prologue): Add stack
	pointer adjustment for the case of no callee-saved registers and
	stack frame bigger than 128 bytes.

From-SVN: r272455

	gcc/fortran/
	PR fortran/90921
	* trans-decl.c (finish_oacc_declare): Reset module_oacc_clauses
	before scanning each namespace.
	gcc/testsuite/
	PR fortran/90921
	* gfortran.dg/goacc/declare-3.f95: Update.

From-SVN: r272454

[PR85221] Set 'omp declare target', 'omp declare target link' attributes for Fortran OpenACC 'declare'd variables

	gcc/fortran/
	PR fortran/85221
	* trans-decl.c (add_attributes_to_decl): Handle OpenACC 'declare'
	directive.
	gcc/testsuite/
	PR fortran/85221
	* gfortran.dg/goacc/declare-3.f95: New file.

From-SVN: r272453

[PR90859] Document status quo for "[OMP] Mappings for VLA different depending on 'target { c && { ! lp64 } }'"

	gcc/testsuite/
	PR middle-end/90859
	* c-c++-common/goacc/firstprivate-mappings-1.c: Update.

From-SVN: r272452

	gcc/testsuite/
	* c-c++-common/goacc/firstprivate-mappings-1.c: New file.
	* g++.dg/goacc/firstprivate-mappings-1.C: Likewise.
	libgomp/
	* testsuite/libgomp.oacc-c++/firstprivate-mappings-1.C: New file.
	* testsuite/libgomp.oacc-c-c++-common/firstprivate-mappings-1.c:
	Likewise.

From-SVN: r272451

..., which got garbled in r230275.

	include/
	* gomp-constants.h (enum gomp_map_kind): Fix description of
	'GOMP_MAP_FIRSTPRIVATE'.

From-SVN: r272450

	libgomp/
	* testsuite/libgomp.fortran/allocatable3.f90: Add missing results
	check.

From-SVN: r272449

	libgomp/
	* testsuite/libgomp.oacc-fortran/allocatable-array-1.f90: New
	file.

From-SVN: r272448

Test what OpenMP 5.0 has to say on this topic.  And, do the same for OpenACC.

	libgomp/
	PR fortran/90743
	* oacc-parallel.c (GOACC_parallel_keyed): Handle NULL mapping
	case.
	* testsuite/libgomp.fortran/target-allocatable-1-1.f90: New file.
	* testsuite/libgomp.fortran/target-allocatable-1-2.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/allocatable-1-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/allocatable-1-2.f90: Likewise.

From-SVN: r272447

	gcc/testsuite/
	PR testsuite/90861
	* c-c++-common/goacc/declare-pr90861.c: New file.
	libgomp/
	PR testsuite/90861
	* testsuite/libgomp.oacc-c-c++-common/declare-vla.c: Update.

From-SVN: r272446

	gcc/testsuite/
	PR testsuite/90868
	* c-c++-common/goacc/declare-1.c: Update.
	* c-c++-common/goacc/declare-2.c: Likewise.

From-SVN: r272445

	gcc/
	PR middle-end/90862
	* omp-low.c (check_omp_nesting_restrictions): Handle
	GF_OMP_TARGET_KIND_OACC_DECLARE.
	gcc/testsuite/
	PR middle-end/90862
	* c-c++-common/goacc/declare-1.c: Update.
	* c-c++-common/goacc/declare-2.c: Likewise.
	libgomp/
	PR middle-end/90862
	* testsuite/libgomp.oacc-c-c++-common/declare-1.c: Update.

From-SVN: r272444

re PR c++/84698 (ICE when using noexcept(noexcept()) declaration on global friend function of template class)

	PR c++/84698
	* g++.dg/cpp0x/noexcept42.C: New test.

From-SVN: r272443

	PR c++/71548
	* g++.dg/cpp0x/variadic177.C: New test.

From-SVN: r272438

	* config/i386/i386.md (@cmp<mode>_1): Rename from cmp<mode>_1.
	(@add<mode>3_carry): Rename from add<mode>3_carry.
	(@sub<mode>3_carry_ccc): Rename from sub<mode>3_carry_ccc.
	(@sub<mode>3_carry_ccgz): Rename form sub<mode>3_carry_ccgz.
	(@copysign<mode>3_const): Rename from copysign<mode>3_const.
	(@copysign<mode>3_var): Rename from copysign<mode>3_var.
	(@xorsign<mode>3_1): Rename from xorsign<mode>3_1.
	(@x86_shift<mode>_adj_1): Rename from x86_shift<mode>_adj_1.
	(@x86_shift<mode>_adj_2): Rename from x86_shift<mode>_adj_2.
	(@x86_shift<mode>_adj_3): Rename from x86_shift<mode>_adj_3.
	(cmpstrnsi): Use gen_cmp_1.
	(lwp_slwpcb): Use gen_lwp_slwpcb_1.
	(@lwp_slwpcb<mode>_1): Rename from lwp_slwpcb<mode>_1.
	(@umonitor_<mode>): Rename from umonitor_<mode>.
	* config/i386/i386-expand.c (ix86_expand_copysign):
	Use gen_copysign3_const and gen_copysign3_var.
	(ix86_expand_xorsign): Use gen_xorsign3_1.
	(ix86_expand_branch): Use gen_sub3_carry_ccc,
	gen_sub3_carry_ccgz and gen_cmp1.
	(ix86_expand_int_addcc): Use gen_sub3_carry and gen_add3_carry.
	(ix86_split_ashl): Use gen_x86_shift_adj_1 and gen_x86_shift_adj_2.
	(ix86_split_ashr): Use gen_x86_shift_adj_1 and gen_x86_shift_adj_3.
	(ix86_split_lshr): Ditto.
	(ix86_expand_builtin) <case IX86_BUILTIN_UMONITOR>: Use gen_umonitor.

From-SVN: r272432

From-SVN: r272431

	* constexpr.c (eval_and_check_array_index): Split out from...
	(cxx_eval_array_reference): ...here.
	(cxx_eval_store_expression): Use it here, too.
	(diag_array_subscript): Take location.  Strip location wrapper.

From-SVN: r272430

	* constexpr.c (cxx_eval_constant_expression): Handle conversion from
	and then to the same type.

From-SVN: r272429

	* tree.c (build_constructor): Add MEM_STAT_DECL.

gcc/cp/
	* constexpr.c (unshare_constructor): Add MEM_STAT_DECL.

From-SVN: r272428

The SVE ACLE patches need to introduce a new CC_NZC mode for the
conditions that can be tested after a PTRUE.  In particular, LT needs
to map to "mi"/"first" and GE to "pl"/"nfrst", instead of the normal
CC mapping.

Another advantage of using a separate mode is that we can print the SVE
names of the conditions, which makes the output a bit easier to read.
It therefore seems like an independent improvement that can go in now.

The patch also avoids using (compare X (const_int 0)), because that gets
folded away when used with LTU and GEU ("cc"/"last" and "cs"/"nlast").
Just using an unspec should be OK.

The full set of conditions can't be tested without other SVE ACLE patches.

2019-06-18  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/aarch64-modes.def (CC_NZC): New CC_MODE.
	* config/aarch64/aarch64-sve.md (*<optab><mode>3_cc)
	(ptest_ptrue<mode>, while_ult<GPI:mode><PRED_ALL:mode>)
	(*while_ult<GPI:mode><PRED_ALL:mode>_cc, *cmp<cmp_op><mode>)
	(*cmp<cmp_op><mode>_ptest, *cmp<cmp_op><mode>_cc)
	(*pred_cmp<cmp_op><mode>_combine, *pred_cmp<cmp_op><mode>)
	(vec_cmp<mode><vpred>, vec_cmpu<mode><vpred>, cbranch<mode>4):
	Use CC_NZC instead of CC.
	* config/aarch64/aarch64.md (condjump): Print a '.' in SVE conditions.
	* config/aarch64/aarch64.c (aarch64_sve_condition_codes): New variable.
	(aarch64_print_operand): Handle E_CC_NZCmode.
	(aarch64_emit_sve_ptrue_op_cc): Use gen_set_clobber_cc_nzc instead
	of gen_set_clobber_cc.

gcc/testsuite/
	* gcc.target/aarch64/sve/struct_vect_18.c: Allow branches to
	contain dots.
	* gcc.target/aarch64/sve/struct_vect_19.c: Likewise.
	* gcc.target/aarch64/sve/struct_vect_20.c: Likewise.
	* gcc.target/aarch64/sve/struct_vect_21.c: Likewise.
	* gcc.target/aarch64/sve/struct_vect_22.c: Likewise.
	* gcc.target/aarch64/sve/struct_vect_23.c: Likewise.
	* gcc.target/aarch64/sve/unroll-1.c: Likewise.
	* gcc.target/aarch64/sve/while_1.c: Check for b.any.

From-SVN: r272427