Commit Graph

180284 Commits

Author SHA1 Message Date
Tobias Burnus
6267bb7a11 lto-wrapper: Fix -save-temps filename commit
Fix for 'Improve -save-temps filename' patch,
commit b3032d1b84

gcc/ChangeLog
	* lto-wrapper.c (run_gcc): Use proper variable for
	%u.ltrans_args dump suffix.

gcc/testsuite/ChangeLog
	* gcc.misc-tests/outputs.exp: Add ltrans_args dump files
	for 'lto save-temps'.
2020-10-20 19:41:44 +02:00
zhengnannan
4fb0ee84ad AArch64: Add FLAG for get/set reg intrinsics [PR94442]
2020-10-20  Zhiheng Xie  <xiezhiheng@huawei.com>
	    Nannan Zheng  <zhengnannan@huawei.com>

gcc/ChangeLog:

	* config/aarch64/aarch64-simd-builtins.def: Add proper FLAG
	for get/set reg intrinsics.
2020-10-20 17:53:04 +01:00
Aldy Hernandez
16e4f1ad44 Refactor range handling of builtins in vr_values and ranger.
This sets things up so we can share range handling of builtins between
vr_values and ranger.  It is meant to refactor the code so that we can
verify that both implementations yield the same results.

First, we abstract out gimple_ranger::range_of_builtin_call into an externally
visible counterpart that can be called from vr_values.  It will take a
range_query since both ranger and vr_values inherit from this base class.

Then we abstract out all the builtin handling in vr_values into a separate
method that is easier to compare against.

Finally, we call the ranger version from vr_values and compare it with the
vr_values version.  Since this proves both versions return the same,
we can remove vr_values::extract_range_builtin in a follow-up patch.

The vr_values::range_of_expr change brings the vr_values version up to par
with the ranger version.  It should've handled non-SSA's.  This was
a small oversight that went unnoticed because the vr_value version isn't
stressed nearly as much as the ranger version.  The change is needed because
the ranger code handling builtins calls, may call it for integer arguments
in range_of_builtin_ubsan_call.

There should be no change in functionality.

gcc/ChangeLog:

	* gimple-range.cc (gimple_ranger::range_of_builtin_ubsan_call):
	Make externally visble...
	(range_of_builtin_ubsan_call): ...here.  Add range_query argument.
	(gimple_ranger::range_of_builtin_call): Make externally visible...
	(range_of_builtin_call): ...here.  Add range_query argument.
	* gimple-range.h (range_of_builtin_call): Move out from class and
	make externally visible.
	* vr-values.c (vr_values::extract_range_basic): Abstract out
	builtin handling to...
	(vr_values::range_of_expr): Handle non SSAs.
	(vr_values::extract_range_builtin): ...here.
	* vr-values.h (class vr_values): Add extract_range_builtin.
	(range_of_expr): Rename NAME to EXPR.
2020-10-20 18:21:23 +02:00
Aldy Hernandez
5d53ec2701 Saturate overflows return from SCEV in ranger.
bounds_of_var_in_loop is returning an overflowed int, which is causing
us to create a range for which we can't compare the bounds causing
an ICE in verify_range.

Overflowed bounds cause compare_values() to return -2, which we
don't handle in verify_range.

We don't represent overflowed ranges in irange, so this patch just
saturates any overflowed end-points to MIN or MAX.

gcc/ChangeLog:

	PR tree-optimization/97501
	* gimple-range.cc (gimple_ranger::range_of_ssa_name_with_loop_info):
	Saturate overflows returned from SCEV.

gcc/testsuite/ChangeLog:

	* gcc.dg/pr97501.c: New test.
2020-10-20 17:23:12 +02:00
Nathan Sidwell
dbcc6b1577 preprocessor: Further fix for EOF in macro args [PR97471]
My previous attempt at fixing this was incorrect.  The problem occurs
earlier in that _cpp_lex_direct processes the unwinding EOF needs in
collect_args mode.  This patch changes it not to do that, in the same
way as directive parsing works.  Also collect_args shouldn't push_back
such fake EOFs, and neither should funlike_invocation_p.

	libcpp/
	* lex.c (_cpp_lex_direct): Do not complete EOF processing when
	parsing_args.
	* macro.c (collect_args): Do not unwind fake EOF.
	(funlike_invocation_p): Do not unwind fake EOF.
	(cpp_context): Replace abort with gcc_assert.
	gcc/testsuite/
	* gcc.dg/cpp/endif.c: Move to ...
	* c-c++-common/cpp/endif.c: ... here.
	* gcc.dg/cpp/endif.h: Move to ...
	* c-c++-common/cpp/endif.h: ... here.
	* c-c++-common/cpp/eof-2.c: Adjust diagnostic.
	* c-c++-common/cpp/eof-3.c: Adjust diagnostic.
2020-10-20 08:01:34 -07:00
Jakub Jelinek
35f258f4bb libgomp: Fix up bootstrap in libgomp/target.c due to false positive warning
> On 10/20/20 2:11 PM, Tobias Burnus wrote:
>
> > Unfortunately, the committed patch
> > (r11-4121-g1bfc07d150790fae93184a79a7cce897655cb37b)
> > causes build errors.
> >
> > The error seems to be provoked by function cloning – as the code
> > itself looks fine:
> > ...
> >  struct gomp_device_descr *devices_s
> >     = malloc (num_devices * sizeof (struct gomp_device_descr));
> > ...
> >   for (i = 0; i < num_devices; i++)
> >     if (!(devices[i].capabilities & GOMP_OFFLOAD_CAP_OPENMP_400))
> >       devices_s[num_devices_after_openmp++] = devices[i];
>
> gomp_target_init.part.0 ()
> {
> ...
> <bb 2>
>   devices_s_1 = malloc (0);
> ...
>   num_devices.16_67 = num_devices;
> ...
>   if (num_devices.16_67 > 0)
>     goto <bb 3>; [89.00%]
>   else
>     goto <bb 18>; [11.00%]
>
> Which seems to have an ordering problem.

This patch fixes the warning that breaks the bootstrap.

2020-10-20  Jakub Jelinek  <jakub@redhat.com>

	* target.c (gomp_target_init): Inside of the function, use automatic
	variables corresponding to num_devices, num_devices_openmp and devices
	global variables and update the globals only at the end of the
	function.
2020-10-20 16:38:24 +02:00
Marek Polacek
953277ba3f c++: Add fixed test [PR82239]
This test was fixed by r256550 but that commit was fixing another issue,
and just happened to fix this too.

gcc/testsuite/ChangeLog:

	PR c++/82239
	* g++.dg/cpp0x/static_assert16.C: New test.
2020-10-20 10:16:12 -04:00
Aldy Hernandez
5bcd7de640 Simplify and split irange::copy_legacy_range into two functions.
copy_legacy_range was a small but complex function.  It was tricky
to understand, and easy to introduce bugs into it.  It also did
unnecessary work on some code paths.

This patch splits the function into two functions that are more
efficient and easier to read (copy_to_legacy and
copy_legacy_to_multi_range).

gcc/ChangeLog:

	* value-range.cc (irange::operator=): Split up call to
	copy_legacy_range into...
	(irange::copy_to_legacy): ...this.
	(irange::copy_legacy_to_multi_range): ...and this.
	(irange::copy_legacy_range): Remove.
	* value-range.h: Remove copoy_legacy_range.
	Add copy_legacy_to_multi_range and copy_to_legacy.
2020-10-20 15:53:22 +02:00
Tobias Burnus
f7378bbf47 gcc/doc/invoke.texi: Fix @table syntax
gcc/
	* doc/invoke.texi (NVPTX options): Use @item not @itemx.
2020-10-20 15:32:58 +02:00
Richard Biener
128f43cf67 Avoid changing PHIs in GIMPLE split_edge
Previously I've changed gimple_split_edge to avoid PHI node
re-allocation, but this introduced swapping of PHI arguments
due to the way edge redirection works.  This is now a problem
for me and which can be solved with the following approach
reducing the overhead of split_edge even more.  We can simply
pretend there are no PHI nodes if we can make sure the
new fallthru will have the same dest_idx as the old edge
into the destination.

2020-10-20  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (reinstall_phi_args): Remove.
	(gimple_split_edge): Remove PHIs around the edge redirection
	to avoid touching them at all.
2020-10-20 14:21:01 +02:00
Richard Biener
06729598b0 Fix latch PHI arg lookup in vectorizable_reduction for double-reduction
We were using the wrong loop to figure the latch arg of a
double-reduction PHI.  Which isn't a problem in case ->dest_idx
match up with the outer loop edges - but that's of course not guaranteed.

2020-10-20  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop.c (vectorizable_reduction): Use the correct
	loops latch edge for the PHI arg lookup.
2020-10-20 14:21:01 +02:00
Kwok Cheung Yeung
1bfc07d150 openmp: Implement support for OMP_TARGET_OFFLOAD environment variable
This implements support for the OMP_TARGET_OFFLOAD environment variable
introduced in the OpenMP 5.0 standard, which controls how offloading
is handled.  It may be set to MANDATORY (abort if offloading cannot be
performed), DISABLED (no offloading to devices) or DEFAULT (offload to
device if possible, fall back to host if not).

2020-10-20  Kwok Cheung Yeung  <kcy@codesourcery.com>

	libgomp/
	* env.c (gomp_target_offload_var): New.
	(parse_target_offload): New.
	(handle_omp_display_env): Print value of OMP_TARGET_OFFLOAD.
	(initialize_env): Parse OMP_TARGET_OFFLOAD.
	* libgomp.h (gomp_target_offload_t): New.
	(gomp_target_offload_var): New.
	* libgomp.texi (OMP_TARGET_OFFLOAD): New section.
	* target.c (resolve_device): Generate error if device not found and
	offloading is mandatory.
	(gomp_target_fallback): Generate error if offloading is mandatory.
	(GOMP_target): Add argument in call to gomp_target_fallback.
	(GOMP_target_ext): Likewise.
	(gomp_target_data_fallback): Generate error if offloading is mandatory.
	(GOMP_target_data): Add argument in call to gomp_target_data_fallback.
	(GOMP_target_data_ext): Likewise.
	(gomp_target_task_fn): Add argument in call to gomp_target_fallback.
	(gomp_target_init): Return early if offloading is disabled.
2020-10-20 04:16:26 -07:00
Jonathan Wakely
94fd05f1f7 libstdc++: Define noop coroutine details private and inline [PR 95917]
This moves the __noop_coro_frame type, the __noop_coro_fr global
variable, and the __dummy_resume_destroy function from namespace scope,
replacing them with private members of the specialization
coroutine_handle<noop_coroutine_promise>.

The function and variable are also declared inline, so that they
generate no code unless used.

libstdc++-v3/ChangeLog:

	PR libstdc++/95917
	* include/std/coroutine (__noop_coro_frame): Replace with
	noop_coroutine_handle::__frame.
	(__dummy_resume_destroy): Define inline in __frame.
	(__noop_coro_fr): Replace with noop_coroutine_handle::_S_fr
	and define as inline.
	* testsuite/18_support/coroutines/95917.cc: New test.
2020-10-20 11:37:48 +01:00
Jonathan Wakely
2c2278f300 libstdc++: Remove inheritance from std::coroutine_handle<> [LWG 3460]
This removes the coroutine_handle<> base class from the primary template
and the noop_coroutine_promise explicit specialization. To preserve the
API various members are added, as they are no longer inherited from the
base class.

I've also tweaked some indentation and formatting, and replaced
subclause numbers from the standard with stable names like
[coroutine.handle.con].

libstdc++-v3/ChangeLog:

	* include/std/coroutine (coroutine_handle<_Promise>): Remove
	base class. Add constructors, conversions, accessors etc. as
	proposed for LWG 3460.
	(coroutine_handle<noop_coroutine_promise>): Likewise.
	* testsuite/18_support/coroutines/lwg3460.cc: New test.
2020-10-20 11:37:48 +01:00
Jozef Lawrynowicz
8c3846e802 MSP430: Support a memory operand for op1 of andneghi3
This fixes an ICE caused by an unrecognizeable insn generated when
compiling gcc.c-torture/execute/pr97386-1.c at -O0.

gcc/ChangeLog:

	* config/msp430/msp430.md (andneghi3): Allow general operand for
	op1 and update output assembler template.
2020-10-20 11:26:56 +01:00
Tobias Burnus
b3032d1b84 collect-utils.c, lto-wrapper + mkoffload: Improve -save-temps filename
gcc/ChangeLog:

	* collect-utils.c (collect_execute, fork_execute): Add at-file suffix
	argument.
	* collect-utils.h (collect_execute, fork_execute): Update prototype.
	* collect2.c (maybe_run_lto_and_relink, do_link, main, do_dsymutil):
	Update calls by passing NULL.
	* config/i386/intelmic-mkoffload.c (compile_for_target,
	generate_host_descr_file, prepare_target_image, main): Likewise.
	* config/gcn/mkoffload.c (compile_native, main): Pass at-file suffix.
	* config/nvptx/mkoffload.c (compile_native, main): Likewise.
	* lto-wrapper.c (compile_offload_image): Likewise.
2020-10-20 12:14:03 +02:00
Vitaly Buka
00b355522b Fix compilation on older systems
Cherry-pick upstream commit f97ca48b1cbbf5da065e94271cb3af4f1c907dd4.

Fixes https://bugs.llvm.org/show_bug.cgi?id=47896
2020-10-20 11:15:10 +02:00
Aldy Hernandez
f0c0f124eb Special case shifting by zero in operator_rshift::op1_range.
gcc/ChangeLog:

	* range-op.cc (operator_rshift::op1_range): Special case
	shifting by zero.
2020-10-20 10:33:48 +02:00
Piotr Trojanek
8f70460005 [Ada] Refine type for type constraining routines
gcc/ada/

	* sem_ch3.adb (Constrain_Decimal, Constrain_Enumeration,
	Constrain_Float, Constrain_Integer, Constrain_Ordinary_Fixed):
	Refine parameter type from Node_Id to Entity_Id.
2020-10-20 03:21:54 -04:00
Piotr Trojanek
420021eaee [Ada] Prevent crashes when pretty-printing freeze nodes from gdb
gcc/ada/

	* sprint.adb (po): Set Dump_Freeze_Null to False; align colons.
	(ps): Likewise.
2020-10-20 03:21:53 -04:00
Ed Schonberg
3bb4836fe1 [Ada] AI12-0339: Empty function for Aggregate aspect of Ada containers
gcc/ada/

	* sinfo.ads, sinfo.adb: The flag Box_Present can appear in
	Iterated_Element_Association nodes.
	* sem_aggr.adb (Resolve_Aggregate): Call
	Resolve_Container_Aggregate when type of context has
	corresponding aspect.
	* sem_type.adb (Covers): In Ada_2020 an aggregate is compatible
	with a type that carries the corresponding aspect.
	* exp_ch3.adb (Make_Controlling_Function_Wrappers): Do not
	create declarations and bodies for inherited primitive functions
	of null extensions that dispatch on result, when current scope
	includes an immediately visible non-overloadable homonym of the
	function.
	* libgnat/a-cborse.adb, libgnat/a-cborse.ads,
	libgnat/a-cbhase.ads, libgnat/a-cbhase.adb,
	libgnat/a-cborma.adb, libgnat/a-cborma.ads,
	libgnat/a-cbhama.adb, libgnat/a-cbhama.ads,
	libgnat/a-cbdlli.adb, libgnat/a-cbdlli.ads,
	libgnat/a-convec.ads, libgnat/a-ciorse.ads,
	libgnat/a-cihase.ads, libgnat/a-cihase.adb,
	libgnat/a-ciorma.ads, libgnat/a-cihama.ads,
	libgnat/a-cihama.adb, libgnat/a-cidlli.ads,
	libgnat/a-cidlli.adb, libgnat/a-coinve.adb,
	libgnat/a-cobove.adb, libgnat/a-cobove.ads,
	libgnat/a-convec.adb, libgnat/a-coinve.ads,
	libgnat/a-coorse.ads, libgnat/a-cohase.adb,
	libgnat/a-cohase.ads, libgnat/a-coorma.ads,
	libgnat/a-cohama.adb, libgnat/a-cohama.ads,
	libgnat/a-cdlili.ads: Add primitive function Empty for use in
	aspect Aggregate, and add corresponding body or expression
	function.
2020-10-20 03:21:52 -04:00
Arnaud Charlet
71400efc5e [Ada] Add support for Unreferenced aspect on formal parameters
gcc/ada/

	* aspects.adb (Has_Aspect_Specifications_Flag): Add
	N_Parameter_Specification.
	* par-ch13.adb (Aspect_Specifications_Present): Also handle case
	of an unknown aspect on the last formal parameter (terminated by
	a Tok_Right_Paren). Minor reformatting.
	* par-ch6.adb (P_Formal_Part): Scan aspects on formal
	parameters.
	* par.adb: Fix typos.
	* sem_ch6.adb (Process_Formals): Add processing of aspects and
	in particular Unreferenced aspect for now.
	* sinfo.ads: Allow ASPECT_SPECIFICATIONS on a
	PARAMETER_SPECIFICATION.
	* doc/gnat_rm/implementation_defined_aspects.rst
	(Aspect Unreferenced): Update documentation.
	* gnat_rm.texi: Regenerate.
2020-10-20 03:21:51 -04:00
Piotr Trojanek
53642c37e2 [Ada] Refine result type of Get_Accessibility
gcc/ada/

	* sem_util.ads, sem_util.adb (Get_Accessibility): Refine result
	type from Node_Id to Entity_Id.
2020-10-20 03:21:50 -04:00
Piotr Trojanek
b21732c521 [Ada] Replace low-level Ekind membership tests with high-level Is_Formal
gcc/ada/

	* einfo.adb, exp_attr.adb, sem_ch13.adb, sem_util.adb: Use
	Is_Formal where possible.
2020-10-20 03:21:49 -04:00
Steve Baird
4c5e9870f2 [Ada] Implement AI12-0280 Making 'Old more flexible
gcc/ada/

	* sem_util.ads: Declare a new package, Old_Attr_Util, which in
	turn declares two more packages, Conditional_Evaluation and
	Indirect_Temps. Conditional_Evaluation provides a predicate for
	deciding whether a given 'Old attribute reference is eligible
	for conditional evaluation and, in the case where it is
	eligible, a function that constructs the Boolean-valued
	condition that is to be evaluated at run time in deciding
	whether to evaluate the attribute prefix.  Indirect_Temps
	provides support for declaring a temporary which is only
	initialized conditionally; more specifically, an access type and
	a variable of that type are declared (unconditionally) and then
	the variable is (conditionally) initialized with an allocator.
	The existence of the access type and the pointer variable is
	hidden from clients, except that a predicate,
	Is_Access_Type_For_Indirect_Temp, is provided for identifying
	such access types. This is needed because we want such an access
	type to be treated like a "normal" access type (specifically
	with respect to finalization of allocated objects). Other parts
	of the compiler treat access types differently if
	Comes_From_Source is False, or if the secondary stack storage
	pool is used; this predicate is used to disable this special
	treatment.
	* sem_attr.adb (Uneval_Old_Msg): Improve message text to reflect
	Ada202x changes.
	(Analyze_Attribute): A previously-illegal 'Old attribute
	reference is accepted in Ada2020 if it is eligible for
	conditional evaluation.
	* sem_res.adb (Valid_Conversion): Do not treat a rewritten 'Old
	attribute like other rewrite substitutions. This makes a
	difference, for example, in the case where we are generating the
	expansion of a membership test of the form "Saooaaat'Old in
	Named_Access_Type"; in this case Valid_Conversion needs to
	return True (otherwise the expansion will be False - see the
	call site in exp_ch4.adb).
	* exp_attr.adb (Expand_N_Attribute_Reference): When expanding a
	'Old attribute reference, test for the case where the reference
	is eligible for conditional evaluation. In that case, use the
	new "indirect temporary" mechanism provided by Sem_Util.
	* exp_prag.adb
	(Expand_Attributes_In_Consequence.Expand_Attributes): If
	Sem_Util.Indirect_Temp_Needed indicates that there could be
	correctness problems associated with the old expansion scheme
	for dealing with 'Old attributes in contract cases consequences,
	then we use the new "indirect temporary" mechanism provided by
	Sem_Util instead. We do not want to do this unconditionally.
	* sem_util.adb: Provide a body for the new Old_Attr_Util
	package. Further work is needed in several areas for
	correctness:
	- The function Is_Repeatedly_Evaluated does not deal with
	container aggregates yet.
	- The function Is_Known_On_Entry does not deal with interactions
	with the Global aspect.
	Each area where more work is needed is indicated with a "???"
	comment in the code; a more detailed description can be found
	there. Some optimization opportunties are similarly indicated
	with a "???" comment.
	* exp_ch3.adb (Freeze_Type): In deciding whether to generate
	expansion for the list controller of an access type, take the
	predicate Is_Access_Type_For_Indirect_Temp into account. If the
	predicate yields True, then generate the expansion.
	* exp_util.adb (Build_Allocate_Deallocate_Proc): We don't
	normally finalize allocated objects that are allocated on the
	secondary stack. Add an exception to this rule if the predicate
	Is_Access_Type_For_Indirect_Temp yields True.  As a result of
	this exception, we have to deal with the fact that gigi expects
	a different parameter profile if we are using the secondary
	stack pool; the Pool and Alignment parameters must be omitted in
	this case.
2020-10-20 03:21:48 -04:00
Javier Miranda
e3b69cc24f [Ada] Spurious error in current instance used as formal package
gcc/ada/

	* sem_ch12.adb (Install_Parents_Of_Generic_Context,
	Remove_Parents_Of_Generic_Context): New subprograms.
	(Instantiate_Package_Body): Adding assertions to ensure that
	installed parents are properly removed.
2020-10-20 03:21:47 -04:00
Claire Dross
6875e1282d [Ada] Make attribute Update an obsolescent feature
gcc/ada/

	* sem_attr.adb (Analyze_Attribute): Emit a warning on 'Update
	when Warn_On_Obsolescent_Feature is set to True.
2020-10-20 03:21:46 -04:00
Richard Kenner
b68e5db5c2 [Ada] CUDA: build procedure calls instead of function calls
gcc/ada/

	* gnat_cuda.adb (Build_Register_Function_Call): Make procedure
	call instead of function, rename to
	Build_Register_Procedure_Call.
	(Build_CUDA_Init_Proc): Make procedure call instead of function.
2020-10-20 03:21:45 -04:00
Justin Squirek
abc694ce7c [Ada] Crash on cond expression as actual for anonymous access formal
gcc/ada/

	* exp_ch6.adb (Expand_Branch): Properly anticipate expansion of
	conditional expressions producing object declarations in
	addition to assignment statements, and rename formal.
2020-10-20 03:21:45 -04:00
Yannick Moy
c01c11cc9c [Ada] Fixes for pretty command-line GNATprove output with -gnatdF
gcc/ada/

	* errout.adb (Write_Source_Code_Line): Adopt display closer to
	GCC format.
	(Output_Messages): Deal specially with info messages.
	* erroutc.adb (Prescan_Message): Fix bug leading to check
	messages being considered as error messages in pretty output
	mode.
2020-10-20 03:21:44 -04:00
Justin Squirek
04b06947cb [Ada] Hang on cond expression as actual for anonymous access formal
gcc/ada/

	* exp_ch6.adb (Expand_Call_Helper): Properly handle the case
	where the condition of a conditional expression has been
	optimized out when calculating the value of an extra
	accessibility parameter.
2020-10-20 03:21:43 -04:00
Bob Duff
854f9a8167 [Ada] gnatpp: Fix documentation of threshold switches
gcc/ada/

	* doc/gnat_ugn/gnat_utility_programs.rst: Change "_" to "-".
2020-10-20 03:21:42 -04:00
Arnaud Charlet
66b6967856 [Ada] New warning on not fully initialized box aggregate
gcc/ada/

	* sem_aggr.adb (Resolve_Aggregate): Warn on not fully
	initialized box aggregate.
	* sem_aggr.ads: Fix typo.
	* sem_res.adb (Resolve_Actuals): Fix typo in error message
	format marking it incorrectly as a continuation message.
	* sem_elab.adb (Check_Internal_Call_Continue): Similarly, add
	missing primary message in case of a call to an actual generic
	subprogram.
	* sem_warn.adb (Check_References): Do not warn on read but never
	assigned variables if the type is partially initialized.
	* libgnat/a-except.ads, libgnat/a-ststun.ads,
	libgnat/g-sechas.ads, libgnat/a-cbdlli.ads,
	libgnat/a-cfdlli.ads, libgnat/a-cobove.ads,
	libgnat/a-cohata.ads, libgnat/a-crbltr.ads,
	libgnat/a-cbmutr.ads, libgnat/a-crdlli.ads,
	libgnat/a-cbsyqu.ads: Address new warning.
	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
	Update doc on -gnatwv.
	* gnat_ugn.texi: Regenerate.

gcc/testsuite/

	* gnat.dg/opt11.adb: Add new expected warning.
2020-10-20 03:21:41 -04:00
Gary Dismukes
6af3576f43 [Ada] Inlining nonstatic calls to static expression functions
gcc/ada/

	* sem_ch6.adb (Analyze_Expression_Function): Mark static
	expression functions as inlined.
2020-10-20 03:21:40 -04:00
Arnaud Charlet
b03a25ff5a [Ada] Crash on precondition, discriminant and protected objects
gcc/ada/

	* contracts.adb (Is_Prologue_Renaming): This function was
	missing support for E_Constant which can also be generated in
	protected objects.
2020-10-20 03:21:39 -04:00
Arnaud Charlet
2e55a8e5b7 [Ada] Issue with gnatbind -V switch and Ada 2012
gcc/ada/

	* bindgen.adb (Gen_Bind_Env_String): Generate Ada 2012 compatible
	strings. Code cleanup.
2020-10-20 03:21:38 -04:00
Yannick Moy
562ccc89f5 [Ada] Fix comments as volatility properties can apply to objects
gcc/ada/

	* sem_util.adb, sem_util.ads: Comment fix.
2020-10-20 03:21:37 -04:00
Arnaud Charlet
8281a07f0c [Ada] Spurious discriminant check on "for of" loop
gcc/ada/

	* sem_ch8.adb (Check_Constrained_Object): Suppress discriminant
	checks when the type has default discriminants and comes from
	expansion of a "for of" loop.
2020-10-20 03:21:36 -04:00
Bob Duff
83dcc2bd35 [Ada] Flexible AST node structure
gcc/ada/

	* atree.ads: Make Default_Node a constant.  Remove the
	modification of Comes_From_Source, and use a separate flag for
	that.  Change Sloc to 0; it always overwritten, and never left
	as the No_Location value.
	(Print_Statistics): Move to spec so we can call it from
	gnat1drv.
	(Num_Nodes): Rename to clarify that this is approximate.
	Correct comment: nodes and entities are never deleted, the count
	is never decremented, and this is not used by Xref.
	(Initialize): Correct comment: Error_List is not created here.
	Other minor naming and comment changes.
	* atree.adb (Extend_Node, New_Copy, New_Entity, New_Node):
	Streamline these. Simplify and improve efficiency.  Move code
	from Allocate_Initialize_Node to these, where it can be executed
	unconditionally.  Take advantage of automatic zeroing of the
	Nodes table.
	(Allocate_Initialize_Node): Remove this. It was an efficiency
	bottleneck, and somewhat complicated, because it was called from
	4 places, and had all sorts of conditionals to check where it
	was called from. Better to move most of that code to the call
	sites, where it can be executed (or not) unconditionally.
	(Allocate_New_Node): New procedure to partly replace
	Allocate_Initialize_Node (called from just 2 of those 4 places).
	(Comes_From_Source_Default): New flag written/read by
	Set_Comes_From_Source_Default/Get_Comes_From_Source_Default.
	This allows us to make Default_Node into a constant with
	all-zeros value.
	(Set_Paren_Count_Of_Copy): New procedure to avoid duplicated
	code.
	(Report): New procedure to encapsulate the call to the reporting
	procedure.
	(Atree_Private_Part): We now need a body for this package, to
	contain package body Nodes.
	(Approx_Num_Nodes_And_Entities): Was Num_Nodes.  For efficiency,
	compute the answer from Nodes.Last. That way we don't need to
	increment a counter on every node creation. Other minor naming
	and comment changes.
	* gnat1drv.adb: Call Atree.Print_Statistics if -gnatd.A switch
	was given.  Add comment documenting the new order dependency (we
	must process the command line before calling Atree.Initialize).
	* debug.adb: Document -gnatd.A.
	* einfo.adb, sinfo.adb: Remove useless Style_Checks pragmas.
	* nlists.ads (Allocate_List_Tables): Inline makes node creation
	a little faster.
	* nlists.adb (Initialize): Remove local constant E, which didn't
	seem to add clarity.
	* treepr.adb (Print_Init): Use renamed
	Approx_Num_Nodes_And_Entities function.
	* types.ads: Change the Low and High bounds as described above.
	* types.h: Change Low and High bounds to match types.ads.
	* sem_ch8.adb, namet.adb, namet.ads: Move the computation of
	Last_Name_Id from sem_ch8 to namet, and correct it to not assume
	Name_Ids are positive.
	* ali.adb, ali-util.adb, bindo-writers.adb, exp_dist.adb,
	fmap.adb, fname-uf.adb, osint.adb: Fix various hash functions to
	avoid assuming the various ranges are positive. Note that "mod"
	returns a nonnegative result when the second operand is
	positive. "rem" can return negative values in that case (in
	particular, if the first operand is negative, which it now is).
	* switch-c.adb: Allow switch -gnaten to control the value of
	Nodes_Size_In_Meg.
	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
	Remove traling whitespaces.
	* opt.ads (Nodes_Size_In_Meg): New Variable.
2020-10-20 03:21:35 -04:00
Eric Botcazou
1b93e420fc [Ada] Fix internal error on bit-aligned component of function call
gcc/ada/

	* exp_util.adb (Remove_Side_Effects): Always generate a renaming
	that is handled by the front-end in the case of an indexed or a
	selected component whose prefix has a nonstandard representation.
2020-10-20 03:21:34 -04:00
Pat Rogers
d3c2ce8e4e [Ada] Document Ada.Task_Initialization
gcc/ada/

	* doc/gnat_rm/the_gnat_library.rst: Add Ada.Task_Initialization.
	* gnat_rm.texi: Regenerate.
2020-10-20 03:21:33 -04:00
Yannick Moy
be273749fa [Ada] Display source code pointing at locations in messages for GNATprove
gcc/ada/

	* errout.adb: (Error_Msg-Internal): Pass the location for a line
	insertion if any in the message.
	(Output_Messages: Add display of source code lines if -gnatdF is
	set.
	(Write_Source_Code_Line): Code clean up.
	* erroutc.adb (Prescan_Message): Apply prescan for continuation
	lines when -gnatdF is set, and record presence of line
	insertion.
	* erroutc.ads (Has_Insertion_Line): New global for prescan.
	(Error_Msg_Object): Add field to record line insertion if
	present.
	* errutil.adb (Error_Msg): Pass no location for Insertion_Sloc.
2020-10-20 03:21:32 -04:00
Arnaud Charlet
bc60bb5eb9 [Ada] Remove extra validity check in case statement
gcc/ada/

	* exp_ch5.adb (Expand_N_Case_Statement): Do not generate
	validity check when possible.
2020-10-20 03:21:31 -04:00
Ed Schonberg
f3f1debe1b [Ada] Ada_2020: Further code cleanup for container aggregates
gcc/ada/

	* exp_aggr.adb (Expand_Iterated_Component): Reorganize code to
	ensure that Loop_Id is properly initialized on all paths, and
	remove code duplication.
2020-10-20 03:21:30 -04:00
Piotr Trojanek
797c14b5cd [Ada] Propagate predicate function to a full view of a private subtype
gcc/ada/

	* sem_ch3.adb (Analyze_Subtype_Declaration): Propagate predicate
	function to full view of the created type as well, if it was
	created.
2020-10-20 03:21:30 -04:00
Arnaud Charlet
e837a62185 [Ada] Code clean up
gcc/ada/

	* exp_attr.adb (Expand_N_Attribute_Reference): Merge handling of
	Simple_Storage_Pool and Storage_Pool.
2020-10-20 03:21:29 -04:00
Piotr Trojanek
afa1ffd42c [Ada] Support for new aspect Subprogram_Variant on recursive subprograms
gcc/ada/

	* aspects.ads: Introduce Subprogram_Variant aspect with the
	following properties: GNAT-specific, with mandatory expression,
	not a representation aspect, never delayed.
	* contracts.adb (Expand_Subprogram_Contract): Mention new aspect
	in the comment.
	(Add_Contract_Item): Support addition of pragma
	Subprogram_Variant to N_Contract node.
	(Analyze_Entry_Or_Subprogram_Contract): Mention new aspect in
	the comment; add pragma Subprogram_Variant to N_Contract node.
	(Build_Postconditions_Procedure): Adapt call to
	Insert_Before_First_Source_Declaration, which is now reused in
	expansion of new aspect.
	(Process_Contract_Cases_For): Also process Subprogram_Variant,
	which is stored in N_Contract node together with Contract_Cases.
	* contracts.ads (Analyze_Entry_Or_Subprogram_Contract): Mention
	new aspect in the comment.
	(Analyze_Entry_Or_Subprogram_Body_Contract): Likewise.
	* einfo.adb (Get_Pragma): Support retrieval of new pragma.
	* einfo.ads (Get_Pragma): Likewise.
	* exp_ch6.adb (Check_Subprogram_Variant): New routine for
	emitting call to check Subprogram_Variant expressions at run
	time.
	(Expand_Call_Helper): Check Subprogram_Variant expressions at
	recursive calls.
	* exp_prag.adb (Make_Op): Moved from expansion of pragma
	Loop_Variant to Exp_Util, so it is now reused for expansion of
	pragma Subprogram_Variant.
	(Process_Variant): Adapt call to Make_Op after moving it to
	Exp_Util.
	(Expand_Pragma_Subprogram_Variant): New routine.
	* exp_prag.ads (Expand_Pragma_Subprogram_Variant): Likewise.
	* exp_util.adb (Make_Variant_Comparison): Moved from Exp_Prag
	(see above).
	* exp_util.ads (Make_Variant_Comparison): Likewise.
	* inline.adb (Remove_Aspects_And_Pragmas): Handle aspect/pragma
	Subprogram_Variant just like similar contracts.
	* par-prag.adb (Prag): Likewise.
	* sem.adb (Insert_Before_First_Source_Declaration): Moved from
	Contracts (see above).
	* sem.ads (Insert_Before_First_Source_Declaration): Likewise.
	* sem_ch12.adb: Mention new aspect in the comment about
	"Implementation of Generic Contracts", just like similar aspects
	are mentioned there.
	* sem_ch13.adb (Insert_Pragma): Mention new aspect in the
	comment, because this routine is now used for Subprogram_Variant
	just like for other similar aspects.
	(Analyze_Aspect_Specifications): Mention new aspect in comments;
	it is handled just like aspect Contract_Cases.
	(Check_Aspect_At_Freeze_Point): Do not expect aspect
	Subprogram_Variant just like we don't expect aspect
	Contract_Cases.
	* sem_prag.adb (Ensure_Aggregate_Form): Now also used for pragma
	Subprogram_Variant, so update comment.
	(Analyze_Pragma): Add initial checks for pragma
	Subprogram_Variant.
	(Analyze_Subprogram_Variant_In_Decl_Part): New routine with
	secondary checks on the new pragma.
	(Sig_Flags): Handle references within pragma Subprogram_Variant
	expression just like references in similar pragma
	Contract_Cases.
	(Is_Valid_Assertion_Kind): Handle Subprogram_Variant just like
	other similar contracts.
	* sem_prag.ads (Analyze_Subprogram_Variant_In_Decl_Part): New
	routine.
	* sem_res.adb (Same_Or_Aliased_Subprograms): Moved to Sem_Util,
	so it can be reused for detection of recursive calls where
	Subprogram_Variant needs to be verified.
	* sem_util.adb (Is_Subprogram_Contract_Annotation): Handle new
	Subprogram_Variant annotation just like other similar
	annotations.
	(Same_Or_Aliased_Subprograms): Moved from Sem_Res (see above).
	* sem_util.ads (Is_Subprogram_Contract_Annotation): Mention new
	aspect in the comment.
	(Same_Or_Aliased_Subprograms): Moved from Sem_Res (see above).
	* sinfo.ads (N_Contract): Document handling of
	Subprogram_Variant.
	* snames.ads-tmpl: Add name for the internally generated
	procedure with checks for Subprogram_Variant expression, name
	for the new aspect and new pragma corresponding to aspect
	Subprogram_Variant.
2020-10-20 03:21:28 -04:00
Piotr Trojanek
87eb6d2c2a [Ada] Minor reorder subprogram declarations alphabetically
gcc/ada/

	* exp_util.ads: Reorder declaration.
2020-10-20 03:21:26 -04:00
Richard Biener
a335f6f4ee tree-optimization/97496 - avoid SLP externs in patterns
I forgot to guard the promotion to external for the case where the
def is in a pattern.

2020-10-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/97496
	* tree-vect-slp.c (vect_get_and_check_slp_defs): Guard extern
	promotion with not in pattern.

	* gcc.dg/vect/bb-slp-pr97496.c: New testcase.
2020-10-20 09:03:02 +02:00
Aldy Hernandez
57fa4146eb Add { target int128 } to gcc.dg/pr97488.c
__int128 does not exist on 32-bit targets.

gcc/testsuite/ChangeLog:

	* gcc.dg/pr97488.c: Add target int128 predicate.
2020-10-20 02:42:12 -04:00