Like with the combine.c patch, this one keeps things simple by
invalidating values in partially-clobbered registers, rather than
trying to tell whether the value in a partially-clobbered register
is actually clobbered or not.  Again, this is in principle a bug fix,
but probably never matters in practice.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* cse.c: Include regs.h and function-abi.h.
	(invalidate_for_call): Take the call insn as an argument.
	Use insn_callee_abi to get the ABI of the call and invalidate
	partially clobbered registers as well as fully clobbered ones.
	(cse_insn): Update call accordingly.

From-SVN: r276317

There shouldn't be many cases in which a useful hard register is
live across a call before RA, so we might as well keep things simple
and invalidate partially-clobbered registers here, in case the values
they hold leak into the call-clobbered part.  In principle this is
a bug fix for TARGET_HARD_REGNO_CALL_PART_CLOBBERED targets,
but in practice it probably doesn't make a difference.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* combine.c: Include function-abi.h.
	(record_dead_and_set_regs): Use insn_callee_abi to get the ABI
	of the target of call insns.  Invalidate partially-clobbered
	registers as well as fully-clobbered ones.

From-SVN: r276316

...or rather, make the use of the default ABI explicit.  That seems
OK if not ideal for this heuristic.

In practical terms, the code patched here is counting GENERAL_REGS,
which are treated in the same way by all concurrent ABI variants
on AArch64.  It might give bad results if used for interrupt
handlers though.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* cfgloopanal.c: Include regs.h and function-abi.h.
	(init_set_costs): Use default_function_abi to test whether
	a general register is call-clobbered.

From-SVN: r276315

old_insns_match_p just tests whether two instructions are
similar enough to merge.  With insn_callee_abi it makes more
sense to compare the ABIs directly.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* cfgcleanup.c (old_insns_match_p): Compare the ABIs of calls
	instead of the call-clobbered sets.

From-SVN: r276314

All caller-save.c uses of "|= fixed_reg_set" added in a previous patch
were redundant, since the sets are later ANDed with ~fixed_reg_set.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* caller-save.c (setup_save_areas): Remove redundant |s of
	fixed_reg_set.
	(save_call_clobbered_regs): Likewise.  Use the call ABI rather
	than call_used_or_fixed_regs to decide whether a REG_RETURNED
	value is useful.

From-SVN: r276313

choose_hard_reg_mode previously took a boolean saying whether the
mode needed to be call-preserved.  This patch replaces it with an
optional ABI pointer instead, so that the function can use that
to test whether a value is call-saved.

default_dwarf_frame_reg_mode uses eh_edge_abi because that's the
ABI that matters for unwinding.  Targets need to override the hook
if they want something different.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* rtl.h (predefined_function_abi): Declare.
	(choose_hard_reg_mode): Take a pointer to a predefined_function_abi
	instead of a boolean call_save flag.
	* config/gcn/gcn.c (gcn_hard_regno_caller_save_mode): Update call
	accordingly.
	* config/i386/i386.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.
	* config/ia64/ia64.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.
	* config/mips/mips.c (mips_hard_regno_caller_save_mode): Likewise.
	* config/msp430/msp430.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.
	* config/rs6000/rs6000.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.
	* config/sh/sh.c (sh_hard_regno_caller_save_mode): Likewise.
	* reginfo.c (init_reg_modes_target): Likewise.
	(choose_hard_reg_mode): Take a pointer to a predefined_function_abi
	instead of a boolean call_save flag.
	* targhooks.c: Include function-abi.h.
	(default_dwarf_frame_reg_mode): Update call to choose_hard_reg_mode,
	using eh_edge_abi to choose the mode.

From-SVN: r276312

This patch replaces the rtx_insn argument to
targetm.hard_regno_call_part_clobbered with an ABI identifier, since
call insns are now just one possible way of getting an ABI handle.
This in turn allows predefined_function_abi::initialize to do the
right thing for non-default ABIs.

The horrible ?: in need_for_call_save_p goes away in a later patch,
with the series as a whole removing most direct calls to the hook in
favour of function_abi operations.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* target.def (hard_regno_call_part_clobbered): Take an ABI
	identifier instead of an rtx_insn.
	* doc/tm.texi: Regenerate.
	* hooks.h (hook_bool_insn_uint_mode_false): Delete.
	(hook_bool_uint_uint_mode_false): New function.
	* hooks.c (hook_bool_insn_uint_mode_false): Delete.
	(hook_bool_uint_uint_mode_false): New function.
	* config/aarch64/aarch64.c (aarch64_hard_regno_call_part_clobbered):
	Take an ABI identifier instead of an rtx_insn.
	* config/avr/avr.c (avr_hard_regno_call_part_clobbered): Likewise.
	* config/i386/i386.c (ix86_hard_regno_call_part_clobbered): Likewise.
	* config/mips/mips.c (mips_hard_regno_call_part_clobbered): Likewise.
	* config/pru/pru.c (pru_hard_regno_call_part_clobbered): Likewise.
	* config/rs6000/rs6000.c (rs6000_hard_regno_call_part_clobbered):
	Likewise.
	* config/s390/s390.c (s390_hard_regno_call_part_clobbered): Likewise.
	* cselib.c: Include function-abi.h.
	(cselib_process_insn): Update call to
	targetm.hard_regno_call_part_clobbered, using insn_callee_abi
	to get the appropriate ABI identifier.
	* function-abi.cc (predefined_function_abi::initialize): Update call
	to targetm.hard_regno_call_part_clobbered.
	* ira-conflicts.c (ira_build_conflicts): Likewise.
	* ira-costs.c (ira_tune_allocno_costs): Likewise.
	* lra-constraints.c: Include function-abi.h.
	(need_for_call_save_p): Update call to
	targetm.hard_regno_call_part_clobbered, using insn_callee_abi
	to get the appropriate ABI identifier.
	* lra-lives.c (check_pseudos_live_through_calls): Likewise.
	* regcprop.c (copyprop_hardreg_forward_1): Update call
	to targetm.hard_regno_call_part_clobbered.
	* reginfo.c (choose_hard_reg_mode): Likewise.
	* regrename.c (check_new_reg_p): Likewise.
	* reload.c (find_equiv_reg): Likewise.
	* reload1.c (emit_reload_insns): Likewise.
	* sched-deps.c: Include function-abi.h.
	(deps_analyze_insn): Update call to
	targetm.hard_regno_call_part_clobbered, using insn_callee_abi
	to get the appropriate ABI identifier.
	* sel-sched.c (init_regs_for_mode, mark_unavailable_hard_regs): Update
	call to targetm.hard_regno_call_part_clobbered.
	* targhooks.c (default_dwarf_frame_reg_mode): Likewise.

From-SVN: r276311

One of the effects of the function_abi series is to make -fipa-ra
work for partially call-clobbered registers.  E.g. if a call preserves
only the low 32 bits of a register R, we handled the partial clobber
separately from -fipa-ra, and so treated the upper bits of R as
clobbered even if we knew that the target function doesn't touch R.

"Fixing" this caused problems for the vzeroupper handling on x86.
The pass that inserts the vzerouppers assumes that no 256-bit or 512-bit
values are live across a call unless the call takes a 256-bit or 512-bit
argument:

      /* Needed mode is set to AVX_U128_CLEAN if there are
	 no 256bit or 512bit modes used in function arguments. */

This implicitly relies on:

/* Implement TARGET_HARD_REGNO_CALL_PART_CLOBBERED.  The only ABI that
   saves SSE registers across calls is Win64 (thus no need to check the
   current ABI here), and with AVX enabled Win64 only guarantees that
   the low 16 bytes are saved.  */

static bool
ix86_hard_regno_call_part_clobbered (rtx_insn *insn ATTRIBUTE_UNUSED,
				     unsigned int regno, machine_mode mode)
{
  return SSE_REGNO_P (regno) && GET_MODE_SIZE (mode) > 16;
}

The comment suggests that this code is only needed for Win64 and that
not testing for Win64 is just a simplification.  But in practice it was
needed for correctness on GNU/Linux and other targets too, since without
it the RA would be able to keep 256-bit and 512-bit values in SSE
registers across calls that are known not to clobber them.

This patch conservatively treats calls as AVX_U128_ANY if the RA can see
that some SSE registers are not touched by a call.  There are then no
regressions if the ix86_hard_regno_call_part_clobbered check is disabled
for GNU/Linux (not something we should do, was just for testing).

If in fact we want -fipa-ra to pretend that all functions clobber
SSE registers above 128 bits, it'd certainly be possible to arrange
that.  But IMO that would be an optimisation decision, whereas what
the patch is fixing is a correctness decision.  So I think we should
have this check even so.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/i386/i386.c: Include function-abi.h.
	(ix86_avx_u128_mode_needed): Treat function calls as AVX_U128_ANY
	if they preserve some 256-bit or 512-bit SSE registers.

From-SVN: r276310

This patch replaces get_call_reg_set_usage with insn_callee_abi,
which returns the ABI of the target of a call insn.  The ABI's
full_reg_clobbers corresponds to regs_invalidated_by_call,
whereas many callers instead passed call_used_or_fixed_regs, i.e.:

  (regs_invalidated_by_call | fixed_reg_set)

The patch slavishly preserves the "| fixed_reg_set" for these callers;
later patches will clean this up.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* target.def (insn_callee_abi): New hook.
	(remove_extra_call_preserved_regs): Delete.
	* doc/tm.texi.in (TARGET_INSN_CALLEE_ABI): New macro.
	(TARGET_REMOVE_EXTRA_CALL_PRESERVED_REGS): Delete.
	* doc/tm.texi: Regenerate.
	* targhooks.h (default_remove_extra_call_preserved_regs): Delete.
	* targhooks.c (default_remove_extra_call_preserved_regs): Delete.
	* config/aarch64/aarch64.c (aarch64_simd_call_p): Constify the
	insn argument.
	(aarch64_remove_extra_call_preserved_regs): Delete.
	(aarch64_insn_callee_abi): New function.
	(TARGET_REMOVE_EXTRA_CALL_PRESERVED_REGS): Delete.
	(TARGET_INSN_CALLEE_ABI): New macro.
	* rtl.h (get_call_fndecl): Declare.
	(cgraph_rtl_info): Fix formatting.  Tweak comment for
	function_used_regs.  Remove function_used_regs_valid.
	* rtlanal.c (get_call_fndecl): Moved from final.c
	* function-abi.h (insn_callee_abi): Declare.
	(target_function_abi_info): Mention insn_callee_abi.
	* function-abi.cc (fndecl_abi): Handle flag_ipa_ra in a similar
	way to get_call_reg_set_usage did.
	(insn_callee_abi): New function.
	* regs.h (get_call_reg_set_usage): Delete.
	* final.c: Include function-abi.h.
	(collect_fn_hard_reg_usage): Add fixed and stack registers to
	function_used_regs before the main loop rather than afterwards.
	Use insn_callee_abi instead of get_call_reg_set_usage.  Exit early
	if function_used_regs ends up not being useful.
	(get_call_fndecl): Move to rtlanal.c
	(get_call_cgraph_rtl_info, get_call_reg_set_usage): Delete.
	* caller-save.c: Include function-abi.h.
	(setup_save_areas, save_call_clobbered_regs): Use insn_callee_abi
	instead of get_call_reg_set_usage.
	* cfgcleanup.c: Include function-abi.h.
	(old_insns_match_p): Use insn_callee_abi instead of
	get_call_reg_set_usage.
	* cgraph.h (cgraph_node::rtl_info): Take a const_tree instead of
	a tree.
	* cgraph.c (cgraph_node::rtl_info): Likewise.  Initialize
	function_used_regs.
	* df-scan.c: Include function-abi.h.
	(df_get_call_refs): Use insn_callee_abi instead of
	get_call_reg_set_usage.
	* ira-lives.c: Include function-abi.h.
	(process_bb_node_lives): Use insn_callee_abi instead of
	get_call_reg_set_usage.
	* lra-lives.c: Include function-abi.h.
	(process_bb_lives): Use insn_callee_abi instead of
	get_call_reg_set_usage.
	* postreload.c: Include function-abi.h.
	(reload_combine): Use insn_callee_abi instead of
	get_call_reg_set_usage.
	* regcprop.c: Include function-abi.h.
	(copyprop_hardreg_forward_1): Use insn_callee_abi instead of
	get_call_reg_set_usage.
	* resource.c: Include function-abi.h.
	(mark_set_resources, mark_target_live_regs): Use insn_callee_abi
	instead of get_call_reg_set_usage.
	* var-tracking.c: Include function-abi.h.
	(dataflow_set_clear_at_call): Use insn_callee_abi instead of
	get_call_reg_set_usage.

From-SVN: r276309

This patch adds a target hook that allows targets to return
the ABI associated with a particular function type.  Generally,
when multiple ABIs are in use, it must be possible to tell from
a function type and its attributes which ABI it is using.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* target.def (fntype_abi): New target hook.
	* doc/tm.texi.in (TARGET_FNTYPE_ABI): Likewise.
	* doc/tm.texi: Regenerate.
	* target.h (predefined_function_abi): Declare.
	* function-abi.cc (fntype_abi): Call targetm.calls.fntype_abi,
	if defined.
	* config/aarch64/aarch64.h (ARM_PCS_SIMD): New arm_pcs value.
	* config/aarch64/aarch64.c: Include function-abi.h.
	(aarch64_simd_abi, aarch64_fntype_abi): New functions.
	(TARGET_FNTYPE_ABI): Define.

From-SVN: r276308

This patch adds new structures and functions for handling
multiple ABIs in a translation unit.  The structures are:

- predefined_function_abi: describes a static, predefined ABI
- function_abi: describes either a predefined ABI or a local
  variant of one (e.g. taking -fipa-ra into account)

The patch adds functions for getting the ABI from a given type
or decl; a later patch will also add a function for getting the
ABI of the target of a call insn.

Although ABIs are about much more than call-clobber/saved choices,
I wanted to keep the name general in case we add more ABI-related
information in future.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* Makefile.in (OBJS): Add function-abi.o.
	(GTFILES): Add function-abi.h.
	* function-abi.cc: New file.
	* function-abi.h: Likewise.
	* emit-rtl.h (rtl_data::abi): New field.
	* function.c: Include function-abi.h.
	(prepare_function_start): Initialize crtl->abi.
	* read-rtl-function.c: Include regs.h and function-abi.h.
	(read_rtl_function_body): Initialize crtl->abi.
	(read_rtl_function_body_from_file_range): Likewise.
	* reginfo.c: Include function-abi.h.
	(init_reg_sets_1): Initialize default_function_abi.
	(globalize_reg): Call add_full_reg_clobber for each predefined ABI
	when making a register global.
	* target-globals.h (this_target_function_abi_info): Declare.
	(target_globals::function_abi_info): New field.
	(restore_target_globals): Copy it.
	* target-globals.c: Include function-abi.h.
	(default_target_globals): Initialize the function_abi_info field.
	(target_globals): Allocate it.
	(save_target_globals): Free it.

From-SVN: r276307

Fix compile time warning about building the FRV backend by adding missing break statements to the switches in frv_register_move_cost.

	PR target/85978
	* config/frv/frv.c (frv_register_move_cost): Add break statements
	to avoid falling through to the wrong cases.  Tidy code.

From-SVN: r276306

The aarch64_vector_pcs handling in aarch64_hard_regno_call_part_clobbered
checks whether the mode might be bigger than 16 bytes, since on SVE
targets the (non-SVE) vector PCS only guarantees that the low 16 bytes
are preserved.  But for multi-register modes, we should instead test
whether each single-register part might be bigger than 16 bytes.
(The size is always divided evenly between registers.)

The testcase uses XImode as an example where this helps.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/aarch64.c (aarch64_hard_regno_call_part_clobbered):
	For multi-registers modes, test how big each register part is.

gcc/testsuite/
	* gcc.target/aarch64/torture/simd-abi-8.c: New test.

From-SVN: r276305

Remove the iq2000_select_section function the iq2000 backend - it never provided any useful functionality.

	PR target/59205
	* config/iq2000/iq2000.c (iq2000_select_section): Delete.
	(TARGET_ASM_SELECT_SECTION): Remove definition.
	(TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Allow definition.

From-SVN: r276304

When one passes short-lived fake rtxes to backends in order to test
their capabilities, it might be beneficial to allocate these rtxes on
stack in order to reduce the load on GC.

Provide macro counterparts of some of the gen_* functions for that
purpose.

gcc/ChangeLog:

2019-09-30  Ilya Leoshkevich  <iii@linux.ibm.com>

	* emit-rtl.c (init_raw_REG): New function.
	(gen_raw_REG): Use init_raw_REG.
	* gengenrtl.c (gendef): Emit init_* functions and alloca_*
	macros.
	* rtl.c (rtx_alloc_stat_v): Use rtx_init.
	* rtl.h (rtx_init): New function.
	(rtx_alloca): New function.
	(init_raw_REG): New function.
	(alloca_raw_REG): New macro.

From-SVN: r276303

pp_separate_with inserts a space after the separator, so there's
no need to add whitespace before "..." as well.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/c-family/
	* c-pretty-print.c (pp_c_parameter_type_list): Avoid printing
	two spaces between a comma and "...".

gcc/testsuite/
	* gcc.dg/Wincompatible-pointer-types-1.c (f1): Expect only one
	space between the comma and "...".

From-SVN: r276302

2019-09-30  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * libgomp_g.h: Include stdint.h instead of gstdint.h.

From-SVN: r276301

2019-09-30  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/predicates.md (pcrel_address): Delete predicate.
	(pcrel_local_address): Replace pcrel_address predicate, use the
	new function address_to_insn_form.
	(pcrel_external_address): Replace with new implementation using
	address_to_insn_form..
	(prefixed_mem_operand): Delete predicate which is now unused.
	(pcrel_external_mem_operand): Delete predicate which is now
	unused.
	* config/rs6000/rs6000-protos.h (enum insn_form): New
	enumeration.
	(enum non_prefixed): New enumeration.
	(address_to_insn_form): New declaration.
	(prefixed_load_p): New declaration.
	(prefixed_store_p): New declaration.
	(prefixed_paddi_p): New declaration.
	(rs6000_asm_output_opcode): New declaration.
	(rs6000_final_prescan_insn): Move declaration and update calling
	signature.
	(address_is_prefixed): New helper inline function.
	* config/rs6000/rs6000.c(print_operand_address): Check for either
	PC-relative local symbols or PC-relative external symbols.
	(rs6000_emit_move): Support loading PC-relative addresses.
	(mode_supports_prefixed_address_p): Delete, no longer used.
	(rs6000_prefixed_address_mode_p): Delete, no longer used.
	(address_to_insn_form): New function to decode an address format.
	(reg_to_non_prefixed): New function to identify what the
	non-prefixed memory instruction format is for a register.
	(prefixed_load_p): New function to identify prefixed loads.
	(prefixed_store_p): New function to identify prefixed stores.
	(prefixed_paddi_p): New function to identify prefixed load
	immediates.
	(next_insn_prefixed_p): New static state variable.
	(rs6000_final_prescan_insn): New function to determine if an insn
	uses a prefixed instruction.
	(rs6000_asm_output_opcode): New function to emit 'p' in front of a
	prefixed instruction.
	* config/rs6000/rs6000.h (FINAL_PRESCAN_INSN): New target hook.
	(ASM_OUTPUT_OPCODE): New target hook.
	* config/rs6000/rs6000.md (prefixed): New insn attribute for
	prefixed instructions.
	(prefixed_length): New insn attribute for the size of prefixed
	instructions.
	(non_prefixed_length): New insn attribute for the size of
	non-prefixed instructions.
	(pcrel_local_addr): New insn to load up a local PC-relative
	address.
	(pcrel_extern_addr): New insn to load up an external PC-relative
	address.
	(mov<mode>_64bit_dm): Split the alternatives for loading 0.0 to a
	GPR and loading a 128-bit floating point type to a GPR.

From-SVN: r276300

2019-09-30  Richard Biener  <rguenther@suse.de>

	* gimple.c (gimple_get_lhs): For PHIs return the result.
	* tree-vectorizer.h (vectorizable_live_operation): Also get the
	SLP instance as argument.
	* tree-vect-loop.c (vect_analyze_loop_operations): Also handle
	double-reduction PHIs with vectorizable_lc_phi.
	(vect_analyze_loop_operations): Adjust.
	(vect_create_epilog_for_reduction): Remove all code not dealing
	with reduction LC PHI or epilogue generation.
	(vectorizable_live_operation): Call vect_create_epilog_for_reduction
	for live stmts of reductions.
	* tree-vect-stmts.c (vectorizable_condition): When !for_reduction
	do not handle defs that are not vect_internal_def.
	(can_vectorize_live_stmts): Adjust.
	(vect_analyze_stmt): When the vectorized stmt defined a value
	used on backedges adjust the backedge uses of vectorized PHIs.

From-SVN: r276299

Also fix the constraints on span(Container&) and span(const Container&)
constructors so that they aren't used for const spans or const arrays.

	* include/std/span (span(element_type(&)[N]))
	(span(array<value_type, N>&), span(const array<value_type, N>&)):
	Deduce array element type to allow safe const conversions (LWG 3255).
	[!_GLIBCXX_P1394] (span(Container&), span(const Container&)): Use
	remove_cv_t on arguments to __is_std_span and __is_std_array.
	* testsuite/23_containers/span/lwg3255.cc: New test.

From-SVN: r276298

	PR libstdc++/77936
	* include/parallel/checkers.h (__is_sorted): Remove unused variable.

From-SVN: r276297

2019-09-30  Martin Jambor  <mjambor@suse.cz>

	PR ipa/91853
	* tree-inline.c (force_value_to_type): New function.
	(setup_one_parameter): Use force_value_to_type to convert type.
	* tree-inline.c (force_value_to_type): Declare.
	* ipa-param-manipulation.c (ipa_param_adjustments::modify_call): Deal
	with register type mismatches.

	testsuite/
	* gcc.dg/ipa/pr91853.c: New test.

From-SVN: r276296

2019-09-30  Andreas Tobler  <andreast@gcc.gnu.org>

	* config.gcc: Use the secure-plt on FreeBSD 13 and upwards for
	32-bit PowerPC.
	Define TARGET_FREEBSD32_SECURE_PLT for 64-bit PowerPC.
	* config/rs6000/t-freebsd64: Make use of the above define and build
	the 32-bit libraries with secure-plt.

From-SVN: r276295

	PR target/91931
	* config/i386/i386-expand.c (ix86_expand_adjust_ufix_to_sfix_si): Use
	gen_int_mode instead of GEN_INT.

	* gcc.target/i386/pr91931.c: New test.

From-SVN: r276294

From-SVN: r276276

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91641
	* check.c (gfc_check_is_contiguous): null() cannot be an actual
	argument to is_contiguous().

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91641
	* gfortran.dg/pr91641.f90: New test.

From-SVN: r276272

Replace the define_expand and two define_insns with a single
@macho_low_<mode> and update callers.

gcc/ChangeLog:

2019-09-29  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (gen_macho_low):Amend to include the mode
	argument.
	(machopic_indirect_data_reference): Amend gen_macho_low call
	to include mode argument
	* config/rs6000/rs6000.c (emit_move): Likewise. Amend a comment.
	* config/rs6000/darwin.md (@macho_low_<mode>): New, replaces
	the macho_high expander and two define_insn entries.

From-SVN: r276271

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91714
	* decl.c (gfc_match_decl_type_spec):  Issue errors for a few
	mangled types.

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91714
	* gfortran.dg/dec_type_print_3.f90: Update dg-error regex.
	* gfortran.dg/pr91714.f90: New test.

From-SVN: r276270

2019-09-29  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91726
	* resolve.c (gfc_expr_to_initialize): Bail out with a copy of
	the original expression if the array ref is a scalar and the
	array_spec has corank.
	* trans-array.c (gfc_conv_array_ref): Such expressions are OK
	even if the array ref codimen is zero.
	* trans-expr.c (gfc_get_class_from_expr): New function taken
	from gfc_get_vptr_from_expr.
	(gfc_get_vptr_from_expr): Call new function.
	* trans-stmt.c (trans_associate_var): If one of these is a
	target expression, extract the class expression from the target
	and copy its fields to a new target variable.
	* trans.h : Add prototype for gfc_get_class_from_expr.

2019-09-29  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91726
	* gfortran.dg/coarray_poly_9.f90 : New test.

From-SVN: r276269

	PR bootstrap/90543
	* optc-save-gen.awk: Fix up printing string option differences.

From-SVN: r276268

gcc/ChangeLog

2019-09-29  Kewen Lin  <linkw@gcc.gnu.org>

    * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Lower
    vec_perm cost to 1 for non-Power7 VSX architectures.

From-SVN: r276267

vectorization on port rs6000.

gcc/ChangeLog

2019-09-29  Kewen Lin  <linkw@gcc.gnu.org>

    * config/rs6000/vsx.md (vec_pack[su]_float_v2di): New define_expand.
    (vec_unpack_[su]fix_trunc_hi_v4sf): Likewise.
    (vec_unpack_[su]fix_trunc_lo_v4sf): Likewise.

gcc/testsuite/ChangeLog

2019-09-29  Kewen Lin  <linkw@gcc.gnu.org>

    * gcc.target/powerpc/conv-vectorize-1.c: New test.
    * gcc.target/powerpc/conv-vectorize-2.c: New test.

From-SVN: r276266

2019-09-28  Jerry DeLisle  <jvdelisle@gcc.ngu.org>

	PR fortran/91802
	* decl.c (attr_decl1): Return MATCH_ERROR without free to avoid
	bad expression type in free_expr0() ICE in rank+corank check.

From-SVN: r276265

From-SVN: r276264

2019-09-28  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_algo.h (merge): Fix documentation.
	* include/debug/functions.h (__check_sorted_aux): Add C++20 constexpr.
	(__check_sorted): Likewise and remove nested irreflexive check.
	(__check_sorted_set_aux, __check_sorted_set): Add C++20 constexpr.
	(__check_partitioned_lower, __check_partitioned_upper): Likewise.
	(_Irreflexive_checker::_S_is_valid): Likewise.
	(__is_irreflexive, __is_irreflexive_pred): Likewise.
	* include/debug/helper_functions.h (__get_distance): Add constexpr.
	(__valid_range_aux): Add C++20 constexpr.
	(__valid_range(_Iter, _Iter, _Distance_traits<_Iter>::__type&)):
	Likewise and add std::is_constant_evaluated check.
	(__valid_range_aux(_Iter, _Iter, std::input_iterator_tag)): New.
	(__valid_range_aux(_Iter, _Iter, std::random_accss_iterator_tag)): New.
	(__valid_range_aux(_Integral, _Integral, std::__true_type)): New,
	use latter.
	(__valid_range(_Iter, _Iter)): Adapt to use latter, add constexpr and
	__builtin_is_contant_evaludated check..
	(__can_advance, __base): Add constexpr.
	* include/debug/macros.h [_GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED]
	(_GLIBCXX_DEBUG_VERIFY_COND_AT): New.
	(__glibcxx_check_sorted): Use __glibcxx_check_irreflexive.
	(__glibcxx_check_sorted_pred): Use __glibcxx_check_irreflexive_pred.
	* testsuite/25_algorithms/binary_search/constexpr.cc: Use irreflexive
	std::less.
	* testsuite/25_algorithms/is_sorted/constexpr.cc: Likewise.
	* testsuite/25_algorithms/merge/constexpr.cc: Fix order in camm. Fix
	lambda to be irreflexive.

From-SVN: r276260

Drop the expander and use a mode iterator on the define_insn
for @macho_high_<mode> instead.

gcc/ChangeLog:

2019-09-28  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (gen_macho_high): Amend to include the mode
	argument.
	(machopic_indirect_data_reference): Amend gen_macho_high call
	to include mode argument.
	(machopic_legitimize_pic_address): Likewise.
	* config/rs6000/rs6000.c (rs6000_legitimize_address):
	* config/rs6000/darwin.md (@macho_high_<mode>): New, replaces
	the macho_high expander and two define_insn entries.

From-SVN: r276256

2019-09-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/91593
	* io/io.h: Add gcc_unreachable().
	* io/transfer.c (file_mode, current_mode,
	formatted_transfer_scalar_read, formatted_transfer_scalar_write,
	pre_position, next_record_r, next_record_w): Add and use
	FORMATTED_UNSPECIFIED to enumeration.

From-SVN: r276255

2019-09-28  Steven G. Kargl  <kargl@gcc.ngu.org>

	PR fortran/91802
	* decl.c (attr_decl1): Check if rank+corank > 15.

2019-09-28  Steven G. Kargl  <kargl@gcc.ngu.org>

	PR fortran/91802
	* gfortran.dg/pr91802.f90: New test.

From-SVN: r276254

2019-09-28  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91864
	* gcc/fortran/io.c (match_io_element): An inquiry parameter cannot be
	read into.
	* gcc/fortran/match.c (gfc_match_allocate): An inquiry parameter 
	can be neither an allocate-object nor stat variable.
	(gfc_match_deallocate): An inquiry parameter cannot be deallocated.

2019-09-28  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91864
	* gcc/testsuite/gfortran.dg/pr91864.f90

From-SVN: r276253

	* call.c (involves_qualification_conversion_p): New function.
	(direct_reference_binding): Build a ck_qual if the conversion
	would involve a qualification conversion.
	(convert_like_real): Strip the conversion created by the ck_qual
	in direct_reference_binding.

	* g++.dg/cpp0x/ref-bind3.C: Add dg-error.
	* g++.dg/cpp0x/ref-bind4.C: New test.
	* g++.dg/cpp0x/ref-bind5.C: New test.
	* g++.dg/cpp0x/ref-bind6.C: New test.
	* g++.old-deja/g++.pt/spec35.C: Revert earlier change.

From-SVN: r276251