Richard Biener [Fri, 23 Oct 2020 06:40:15 +0000 (08:40 +0200)]
middle-end/97521 - always use single-bit bools in mask vector types
This makes us always use a single-bit boolean type component type
for integer mode mask VECTOR_BOOLEAN_TYPE_P to match the RTL and target
representation. This aovids the need for magic translation and
the inconsistencies from the translation requirement now that
we expose temporaries of those types on the GIMPLE level.
2020-10-23 Richard Biener <rguenther@suse.de>
PR middle-end/97521
* expr.c (const_scalar_mask_from_tree): Remove.
(expand_expr_real_1): Always VIEW_CONVERT integer mode
vector constants to an integer type.
* tree.c (build_truth_vector_type_for_mode): Use a single-bit
boolean component type for non-vector-mode mask_mode.
H.J. Lu [Wed, 15 Jul 2020 17:34:54 +0000 (10:34 -0700)]
x86: Inline strncmp only with -minline-all-stringops
Expand strncmp to "repz cmpsb" only with -minline-all-stringops since
"repz cmpsb" can be much slower than strncmp function implemented with
vector instructions, see
builtins.c (expand_builtin_memcmp): Do not use cmpstrnsi pattern.
* builtins.c (expand_builtin_memcmp): Do not use cmpstrnsi
pattern.
* doc/md.texi (cmpstrn): Note that the comparison stops if both
fetched bytes are zero.
(cmpstr): Likewise.
(cmpmem): Note that the comparison does not stop if both of the
fetched bytes are zero.
Duplicate the cmpstrn pattern for cmpmem. The only difference is that
the length argument of cmpmem is guaranteed to be less than or equal to
lengths of 2 memory areas. Since "repz cmpsb" can be much slower than
memcmp function implemented with vector instruction, see
Andreas Krebbel [Mon, 26 Oct 2020 10:41:55 +0000 (11:41 +0100)]
IBM Z: Add vcond_mask expander
After adding vec_cmp expanders we have seen various performance
related regression in the testsuite. These appear to be caused by a
missing vcond_mask definition in the backend. Fixed with this patch.
Richard Biener [Mon, 26 Oct 2020 09:08:38 +0000 (10:08 +0100)]
tree-optimization/97539 - reset out-of-loop debug uses before peeling
This makes sure to reset out-of-loop debug uses before vectorizer
loop peeling as we cannot make sure to retain the use-def dominance
relationship when there are no LC SSA nodes.
Jan Hubicka [Mon, 26 Oct 2020 10:24:33 +0000 (11:24 +0100)]
Make default duplicate and insert methods of summaries abort; fix fallout
the default duplicate and insert methods of sumaries produce empty
summary that is not useful for anything and makes it easy to introduce
bugs.
This patch makes the default hooks to abort and summaries that do not
need dupicaito/insertion disable the corresponding hooks. I also
implemented missing insertion hook for ipa-sra which forced me to move
analysis out of anonymous namespace.
2020-10-23 Jan Hubicka <hubicka@ucw.cz>
* cgraph.h (struct cgraph_node): Make ipa_transforms_to_apply vl_ptr.
* ipa-inline-analysis.c (initialize_growth_caches): Disable insertion
and duplication hooks.
* ipa-inline-transform.c (clone_inlined_nodes): Clear
ipa_transforms_to_apply.
(save_inline_function_body): Disable insertion hoook for
ipa_saved_clone_sources.
* ipa-prop.c (ipcp_transformation_initialize): Disable insertion hook.
* ipa-prop.h (ipa_node_params_t): Disable insertion hook.
* ipa-reference.c (propagate): Disable insertion hoook.
* ipa-sra.c (ipa_sra_summarize_function): Move out of anonymous
namespace.
(ipa_sra_function_summaries::insert): New virtual function.
* passes.c (execute_one_pass): Do not add transforms to inline clones.
* symbol-summary.h (function_summary_base): Make insert and duplicate
hooks fail instead of silently producing empty summaries; add way to
disable duplication hooks
(call_summary_base): Likewise.
* tree-nested.c (nested_function_info::get_create): Disable insertion
hooks
(maybe_record_nested_function): Likewise.
Stephan Bergmann [Mon, 26 Oct 2020 10:11:50 +0000 (10:11 +0000)]
libstdc++: Add missing exception-specifications in shared_ptr
libstdc++-v3/ChangeLog:
* include/bits/shared_ptr_base.h
(_Sp_counted_base::_M_add_ref_lock_nothrow(): Add noexcept to
definitions to match declaration.
(__shared_count(const __weak_count&, nothrow_t)): Add noexcept
to declaration to match definition.
Ed Schonberg [Mon, 21 Sep 2020 15:54:09 +0000 (11:54 -0400)]
[Ada] Handle Iterated_Component_Association with Others_Choice
gcc/ada/
* exp_aggr.adb (Build_Array_Aggr_Code): If the aggregate
includes an Others_Choice in an association that is an
Iterated_Component_Association, generate a proper loop for it.
Piotr Trojanek [Thu, 17 Sep 2020 14:11:56 +0000 (16:11 +0200)]
[Ada] Fix freezing of previous contracts
gcc/ada/
* contracts.adb (Causes_Contract_Freezing): Extend condition to
match the one in Analyze_Subprogram_Body_Helper. This routine is
used both as an assertion at the very start of
Freeze_Previous_Contracts and to detect previous declaration for
which Freeze_Previous_Contracts has been executed.
Piotr Trojanek [Fri, 18 Sep 2020 12:45:51 +0000 (14:45 +0200)]
[Ada] Fix harmless assertion failure in GNATprove mode
gcc/ada/
* inline.adb (Establish_Actual_Mapping_For_Inlined_Call): Add
guard for a call to Set_Last_Assignment with the same condition
as the assertion in that routine and explain why this guard
fails in GNATprove mode.
Eric Botcazou [Thu, 17 Sep 2020 22:32:34 +0000 (00:32 +0200)]
[Ada] Relax assertion on Small in Ada.Text_IO.Fixed_IO
gcc/ada/
* libgnat/a-tifiio.adb: Change the range of supported Small
values.
(E0, E1, E2): Adjust factors.
(Exact): Return false if the Small does not fit in 64 bits.
[Ada] Fix Accept_Socket and Connect_Socket timeout support
gcc/ada/
* libgnat/g-socket.adb (Wait_On_Socket): Boolean parameter
For_Read changed to Event parameter of type
GNAT.Sockets.Poll.Wait_Event_Set. Implementation is simplified
and based on call to GNAT.Sockets.Poll.Wait now.
[Ada] Restore hex addresses and improve symbolic backtraces
gcc/ada/
* libgnat/s-dwalin.adb (Symbolic_Traceback): Always emit the hex
address at the beginning of an entry if suppression is not
requested. Consistently output a "???" for the subprogram name
when it is unknown.
Ed Schonberg [Thu, 10 Sep 2020 19:57:06 +0000 (15:57 -0400)]
[Ada] Spurious error on Old attribute reference in delta aggregate
gcc/ada/
* sem_aggr.adb (Resolve_Delta_Array_Aggregate): For an
association that is an iterated component association, attach
the copy of the expression to the tree prior to analysis, in
order to preserve its context. This is needed when verifying
static semantic rules that depend on context, for example that a
use of 'Old appears only within a postcondition.
Gary Dismukes [Thu, 10 Sep 2020 19:12:32 +0000 (15:12 -0400)]
[Ada] Missing errors on extension aggregates with unknown discriminants
gcc/ada/
* sem_aggr.adb (Resolve_Extension_Aggregate): When testing for
an aggregate that is illegal due to having an ancestor type that
has unknown discriminants, add an "or else" condition testing
whether the aggregate type has unknown discriminants and that
Partial_View_Has_Unknown_Discr is also set on the ancestor type.
Extend the comment, including adding ??? about a possible
simpler test.
Piotr Trojanek [Wed, 9 Sep 2020 22:01:44 +0000 (00:01 +0200)]
[Ada] Fix SPARK expansion of iterated_component_assoc in delta aggregate
gcc/ada/
* exp_spark.adb (Expand_SPARK_Delta_Or_Update): Add missing call
to Enter_Name, just like it is called for
iterated_component_association in Expand_SPARK_N_Aggregate.
Piotr Trojanek [Wed, 9 Sep 2020 21:55:55 +0000 (23:55 +0200)]
[Ada] Cleanup SPARK expansion of aggregates with iterated_component_assoc
gcc/ada/
* exp_spark.adb (Expand_SPARK_Delta_Or_Update): Reuse local
constant Expr and the Choice_List routine.
(Expand_SPARK_N_Aggregate): Reuse local constant Expr.
Ed Schonberg [Wed, 9 Sep 2020 12:40:25 +0000 (08:40 -0400)]
[Ada] Crash on membership test in expression function
gcc/ada/
* freeze.adb (Freeze_Type_Refs): When an entity in an expression
function is a type, freeze the entity and not just its type,
which would be incomplete when the type is derived and/or
tagged.
Xionghu Luo [Mon, 26 Oct 2020 07:52:39 +0000 (02:52 -0500)]
Add overloaded debug_bb and debug_bb_n with dump flags
Add overloads that accept a flags argument so we can print
debug_bb_n (5, TDF_DETAILS) in gdb, also the debug_bb_slim
variant would then be just a forwarder.
gcc/ChangeLog:
2020-10-26 Xionghu Luo <luoxhu@linux.ibm.com>
* cfg.c (debug_bb): New overloaded function.
(debug_bb_n): New overloaded function.
* cfg.h (debug_bb): New declaration.
(debug_bb_n): New declaration.
* print-rtl.c (debug_bb_slim): Call debug_bb with flags.
Thomas Koenig [Sun, 25 Oct 2020 12:16:16 +0000 (13:16 +0100)]
Correct decls for functions which do not pass actual arguments.
A wrong decl for findloc caused segfaults at runtime on
Darwin for ARM; however, this is only a symptom of a larger
disease: The declarations for our library functions are often
inconsistent. This patch solves that problem for the functions
specifically for the functions for which we do not pass optional
arguments, i.e. findloc and (min|max)loc.
It works by saving the symbols of the specific functions in
gfc_intrinsic_namespace and by generating the formal argument
lists from the actual argument lists. Because symbols are
re-used, so are the backend decls.
gcc/fortran/ChangeLog:
PR fortran/97454
* gfortran.h (gfc_symbol): Add pass_as_value flag.
(gfc_copy_formal_args_intr): Add optional argument
copy_type.
(gfc_get_intrinsic_function_symbol): Add prototype.
(gfc_find_intrinsic_symbol): Add prototype.
* intrinsic.c (gfc_get_intrinsic_function_symbol): New function.
(gfc_find_intrinsic_symbol): New function.
* symbol.c (gfc_copy_formal_args_intr): Add argument. Handle case
where the type needs to be copied from the actual argument.
* trans-intrinsic.c (remove_empty_actual_arguments): New function.
(specific_intrinsic_symbol): New function.
(gfc_conv_intrinsic_funcall): Use it.
(strip_kind_from_actual): Adjust so that the expression pointer
is set to NULL.
(gfc_conv_intrinsic_minmaxloc): Likewise.
(gfc_conv_intrinsic_minmaxval): Adjust removal of dim.
* trans-types.c (gfc_sym_type): If sym->pass_as_value is set, do
not pass by reference.
H.J. Lu [Fri, 16 Oct 2020 12:59:51 +0000 (05:59 -0700)]
Update check for working assembler --gdwarf-4 option
Rename HAVE_AS_WORKING_DWARF_4_FLAG to HAVE_AS_WORKING_DWARF_N_FLAG
Don't set HAVE_AS_WORKING_DWARF_N_FLAG if --gdwarf-5/--gdwarf-4 generate
an extra assembly input file in debug info from compiler generated
.debug_line or fail with the APP marker:
Also replace success with dwarf4_success in the 32-bit --gdwarf-4 check.
PR bootstrap/97451
* configure.ac (HAVE_AS_WORKING_DWARF_4_FLAG): Renamed to ...
(HAVE_AS_WORKING_DWARF_N_FLAG): This. Don't define if there is
an extra assembly input file in debug info. Replace success
with dwarf4_success in the 32-bit --gdwarf-4 check.
* dwarf2out.c (asm_outputs_debug_line_str): Check
HAVE_AS_WORKING_DWARF_N_FLAG instead of
HAVE_AS_WORKING_DWARF_4_FLAG.
* gcc.c (ASM_DEBUG_SPEC): Likewise.
(ASM_DEBUG_OPTION_SPEC): Likewise.
* config.in: Regenerated.
* configure: Likewise.
Marek Polacek [Thu, 15 Oct 2020 20:10:45 +0000 (16:10 -0400)]
c++: Fix verify_ctor_sanity ICE [PR96241]
The code added in r10-6437 caused us to create a CONSTRUCTOR when we're
{}-initializing an aggregate. Then we pass this new CONSTRUCTOR down to
cxx_eval_constant_expression which, if the CONSTRUCTOR isn't TREE_CONSTANT
or reduced_constant_expression_p, calls cxx_eval_bare_aggregate. In
this case the CONSTRUCTOR wasn't reduced_constant_expression_p because
for r_c_e_p a CONST_DECL isn't good enough so it returns false. So we
go to cxx_eval_bare_aggregate where we crash, because ctx->ctor wasn't
set up properly. So my fix is to do so. Since we're value-initializing,
I'm not setting CONSTRUCTOR_NO_CLEARING. To avoid keeping a garbage
constructor around, I call free_constructor in case the evaluation did
not use it.
gcc/cp/ChangeLog:
PR c++/96241
* constexpr.c (cxx_eval_array_reference): Set up ctx->ctor if we
are initializing an aggregate. Call free_constructor on the new
CONSTRUCTOR if it isn't returned from cxx_eval_constant_expression.
gcc/testsuite/ChangeLog:
PR c++/96241
* g++.dg/cpp0x/constexpr-96241.C: New test.
* g++.dg/cpp1y/constexpr-96241.C: New test.
Martin Liska [Sat, 24 Oct 2020 06:41:16 +0000 (08:41 +0200)]
cgraph: move former_thunk_p out of CHECKING_P macro.
This fixes the following failure:
ld: cgraph.o: in function `cgraph_edge::verify_corresponds_to_fndecl(tree_node*)':
gcc/cgraph.c:3067: undefined reference to `cgraph_node::former_thunk_p()'
ld: cgraph.o: in function `clone_of_p':
gcc/ChangeLog:
* cgraph.c (cgraph_node::former_thunk_p): Move out of CHECKING_P
macro.
Alan Modra [Fri, 23 Oct 2020 01:41:15 +0000 (12:11 +1030)]
[RS6000] altivec style lvx/stvx addresses vs power10
gcc.target/powerpc/fold-vec-st-pixel.c and other testcases fail on
power10, generating
addi 9,5,12
rldicr 9,9,0,59
stxv 34,0(9)
rather than
addi 5,5,12
stvx 2,0,5
for an altivec lvx/stvx style address.
The problem starts with fwprop creating
(insn 9 4 0 2 (set (mem:V8HI (and:DI (plus:DI (reg/v/f:DI 121 [ vpp ])
(const_int 12 [0xc]))
(const_int -16 [0xfffffffffffffff0])) [0 MEM <vector(8) short int> [(void *)_4 & -16B]+0 S16 A128])
(reg/v:V8HI 120 [ vp1 ])) "pixel.c":6:10 1237 {vsx_movv8hi_64bit}
which is finally thrown out as invalid by lra. lra of course does that
by reloading the entire address.
fwprop creates the invalid address due to rs6000_legitimate_address_p
trimming off the outer AND of altivec style addresses before applying
other predicates. address_is_prefixed then allows the inner address.
Now at the time the AND stripping was added (git commit 850e8d3d56d),
rs6000_legitimate_address looked a lot simpler. This patch allows
through just those addresses that were legitimate in those simpler
days.
* config/rs6000/rs6000.c (rs6000_legitimate_address_p): Limit
AND addressing to just lvx/stvx style addresses.
Nikhil Benesch [Wed, 21 Oct 2020 07:00:04 +0000 (03:00 -0400)]
net/http/cgi: merge upstream changes to default env vars
Incorporate upstream modifications to the cgi package's set of rules
about which environment variables should be inherited by child processes
by default on each platform. In particular this permits tests to pass on
NetBSD by preserving the value of the LD_LIBRARY_PATH environment
variable.
This is a partial backport of the following upstream CLs:
Jan Hubicka [Fri, 23 Oct 2020 19:44:23 +0000 (21:44 +0200)]
Move thunks out of cgraph_node
this patch moves thunk_info out of cgraph_node into a symbol summary.
I also moved it to separate hearder file since cgraph.h became really too
fat. I plan to contiue with similar breakup in order to cleanup interfaces
and reduce WPA memory footprint (symbol table now consumes more memory than
trees)
Marek Polacek [Fri, 11 Sep 2020 20:19:08 +0000 (16:19 -0400)]
c, c++: Implement -Wsizeof-array-div [PR91741]
This patch implements a new warning, -Wsizeof-array-div. It warns about
code like
int arr[10];
sizeof (arr) / sizeof (short);
where we have a division of two sizeof expressions, where the first
argument is an array, and the second sizeof does not equal the size
of the array element. See e.g. <https://www.viva64.com/en/examples/v706/>.
Clang makes it possible to suppress the warning by parenthesizing the
second sizeof like this:
sizeof (arr) / (sizeof (short));
so I followed suit. In the C++ FE this was rather easy, because
finish_parenthesized_expr already set TREE_NO_WARNING. In the C FE
I've added a new tree code, PAREN_SIZEOF_EXPR, to discern between the
non-() and () versions.
This warning is enabled by -Wall. An example of the output:
x.c:5:23: warning: expression does not compute the number of elements in this array; element type is ‘int’, not ‘short int’ [-Wsizeof-array-div]
5 | return sizeof (arr) / sizeof (short);
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
x.c:5:25: note: add parentheses around ‘sizeof (short int)’ to silence this warning
5 | return sizeof (arr) / sizeof (short);
| ^~~~~~~~~~~~~~
| ( )
x.c:4:7: note: array ‘arr’ declared here
4 | int arr[10];
| ^~~
gcc/c-family/ChangeLog:
PR c++/91741
* c-common.c (verify_tree): Handle PAREN_SIZEOF_EXPR.
(c_common_init_ts): Likewise.
* c-common.def (PAREN_SIZEOF_EXPR): New tree code.
* c-common.h (maybe_warn_sizeof_array_div): Declare.
* c-warn.c (sizeof_pointer_memaccess_warning): Unwrap NOP_EXPRs.
(maybe_warn_sizeof_array_div): New function.
* c.opt (Wsizeof-array-div): New option.
gcc/c/ChangeLog:
PR c++/91741
* c-parser.c (c_parser_binary_expression): Implement -Wsizeof-array-div.
(c_parser_postfix_expression): Set PAREN_SIZEOF_EXPR.
(c_parser_expr_list): Handle PAREN_SIZEOF_EXPR like SIZEOF_EXPR.
* c-tree.h (char_type_p): Declare.
* c-typeck.c (char_type_p): No longer static.
Douglas Rupp [Mon, 13 Apr 2020 17:52:39 +0000 (10:52 -0700)]
Link with the configured net lib on vxworks7
The net library is configurable on vxworks7. Pick the library
to include in link closures in accordance with the availability
of a revealing header file, using the recently introduced
if-exist-then-else spec builtin function.
2021-10-23 Douglas Rupp <rupp@adacore.com>
gcc/
* config/vxworks.h (VXWORKS_NET_LIBS_RTP): Use -lrtnet if
rtnetStackLib.h is available,fallback to -lnet otherwise.
Rasmus Villemoes [Fri, 23 Oct 2020 09:09:05 +0000 (09:09 +0000)]
Fix overzealous gthread support inhibition for vxworks
The tests for macros possibly defined in gthr.h needs to
be performed after the corresponding #include. This was tested
together with the previous updates to gthr-vxworks-thread.c
and gthr-vxworks-cond.c and was meant to be squashed with them.
Douglas Rupp [Tue, 7 Apr 2020 21:05:57 +0000 (14:05 -0700)]
Add a if-exists-then-else built-in spec function
This patch adds an if-exists-then-else
builtin spec function, which tests for the existence of
a file and returns one or the other of the following
arguments depending on the result of the test.
This differs from the existing if-exists or
if-exists-else function which return the name of the
tested file if it exists.
This new function is of help to a forthcoming change for
VxWorks where we check for the presence of a specific header
file to decide the name of a library to include in the link
closure.
2020-10-23 Douglas Rupp <rupp@adacore.com>
gcc/
* gcc.c (if-exists-then-else): New built-in spec function.
* doc/invoke.texi: Document it.
Patrick Palka [Fri, 23 Oct 2020 13:03:25 +0000 (09:03 -0400)]
libstdc++: Apply proposed resolutions for LWG 3428, 3447
libstdc++-v3/ChangeLog:
* include/std/ranges (single_view::single_view): Mark the
in place constructor explicit as per LWG 3428.
(take_view): Remove the constraint on the deduction guide's
template parameter as per LWG 3447.
Alexandre Oliva [Fri, 23 Oct 2020 09:37:07 +0000 (06:37 -0300)]
more wraplf for aux long long float: s390, sparc and powerpc
The wraplf version of Ada.Numerics.Aux_Long_Long_Float is needed on
s390* as well. Also add it to sparc*-linux-gnu and powerpc-darwin,
that were missed when adding it for sparc and ppc targets.
for gcc/ada/ChangeLog
PR ada/97504
* Makefile.rtl (LIBGNAT_TARGET_PAIRS): Select wraplf version
of Aux_Long_Long_Float for s390 and remaining sparc and
powerpc targets.
* Makefile.rtl (GNATRTL_SOCKETS_OBJS): New object
g-socpol$(objext) New source files noted: g-socpol.adb,
g-socpol.ads, g-socpol__dummy.adb, g-socpol__dummy.ads,
g-sopowa.adb, g-sopowa__posix.adb, g-sopowa__mingw.adb,
g-spogwa.adb, g-spogwa.ads.
* impunit.adb (Non_Imp_File_Names_95): New base filename
g-socpol in "GNAT Library Units" section for GNAT.Sockets.Poll
unit.
* libgnat/g-socket.ads, libgnat/g-socket.adb:
(Raise_Socket_Error): Moved from body to private part of
specification to use in GNAT.Sockets.Poll.
* libgnat/g-socpol.ads, libgnat/g-socpol.adb: Main unit of the
implementation.
* libgnat/g-socpol__dummy.ads, libgnat/g-socpol__dummy.adb:
Empty unit for the systems without sockets support.
* libgnat/g-spogwa.ads, libgnat/g-spogwa.adb: Generic unit
implementing sockets poll on top of select system call.
* libgnat/g-sopowa.adb (Wait): Separate implementation for
operation systems with poll system call support.
* libgnat/g-sopowa__posix.adb (Wait): Separate implementation
for POSIX select system call.
* libgnat/g-sopowa__mingw.adb (Wait): Separate implementation
for Windows select system call.
* gsocket.h (_WIN32_WINNT): Increase to 0x0600 for winsock2.h to
allow WSAPoll related definitions.
* s-oscons-tmplt.c: Fix comment next to #endif for
#if defined (__linux__) || defined (__ANDROID__) line. Include
<poll.h> for all except VxWorks and Windows.
(SIZEOF_nfds_t): New definition.
(SIZEOF_fd_type): New definition.
(SIZEOF_pollfd_events): New definition.
(POLLIN, POLLPRI, POLLOUT, POLLERR, POLLHUP, POLLNVAL): New
definitions for VxWorks to be able to emulate poll on top of
select in it. Define POLLPRI as zero on Windows as it is not
supported there.
(Poll_Linkname): New definition, because the poll system call
has different name in Windows and POSIX.
[Ada] Further Ada 2020 work on accessibility checking
gcc/ada/
* checks.adb (Apply_Accessibility_Check): Skip checks against
the extra accessibility of a function result when in Ada 2005
mode or earlier.
* exp_ch3.adb (Build_Initialization_Call): Modify accessibility
level calls to use Accessibility_Level.
(Expand_N_Object_Declaration): Modify accessibility level calls
to use Accessibility_Level.
* exp_ch4.adb (Expand_Allocator_Expression): Add static check
for anonymous access discriminants. Remove unneeded propagation
of accessibility actual.
(Expand_N_In): Modify accessibility level calls to use
Accessibility_Level.
(Expand_N_Type_Conversion): Modify accessibility level calls to
use Accessibility_Level.
* exp_ch5.adb (Expand_N_Assignment_Statement): Modify
accessibility level calls to use Accessibility_Level.
* exp_ch6.adb (Expand_Call_Helper): Rewrite accessibility
calculation for the extra accessibility of result actual in
function calls, and modify accessibility level calls to use
Accessibility_Level.
(Check_Against_Result_Level): Removed.
* exp_ch9.adb (Expand_N_Requeue_Statement): Add dynamic
accessibility check for requeues
* sem_attr.adb (Resolve_Attribute): Modify accessibility level
calls to use Accessibility_Level.
* sem_ch13.adb (Associate_Storage_Pool): Modify accessibility
level calls to use Accessibility_Level.
* sem_ch4.adb (Analyze_Call): Add static check for explicitly
aliased formals in function calls within return statements.
* sem_ch6.adb (Check_Return_Construct_Accessibility): Rewrite
routine to account for non-aggregate return objects.
(Generate_Minimum_Accessibility): Created.
(Analyze_Call): Modify accessibility level calls to use
Accessibility_Level.
(Analyze_Subprogram_Body_Helper): Add generation of minimum
accessibility for the extra accessibility of the function
result.
* sem_ch9.adb (Analyze_Requeue): Modify accessibility level
calls to use Accessibility_Level.
* sem_res.adb: (Check_Aliased_Parameters): Modify accessibility
level calls to use Accessibility_Level.
(Valid_Conversion): Modify accessibility level calls to use
Accessibility_Level.
* sem_util.adb, sem_util.ads (Accessibility_Level_Helper):
Renamed to Accessibility_Level, add detection for functions in
prefix notation, and add cases where to return zero when
specified. Modified to take new, more descriptive, parameters.
(Accessibility_Level): Created.
(Function_Call_Level): Removed.
(Function_Call_Or_Allocator_Level): Created to centralize the
calculation accessibility levels for function calls and
allocators.
(Static_Accessibility_Level): Removed.
(Dynamic_Accessibility_Level): Removed.
(Get_Dynamic_Accessibility): Renamed from Get_Accessibility.
(In_Return_Value): Created to determine if a given expression
contributes to the current function's return value.
(Is_Master): Created.
(Is_Explicitly_Aliased): Created
Piotr Trojanek [Fri, 4 Sep 2020 12:51:02 +0000 (14:51 +0200)]
[Ada] Reject illegal syntax in pragma Contract_Cases
gcc/ada/
* contracts.adb (Analyze_Entry_Or_Subprogram_Contract,
Analyze_Subprogram_Body_Stub_Contract): Fix missing references
to Subprogram_Variant where similar references to Contract_Cases
are present.
* sem_prag.adb (Analyze_Contract_Case, Analyze_Variant): Check
that aggregate parameter has no expressions.
(Analyze_Pragma): Replace Contract_Cases with Subprogram_Variant
in a copy-pasted comment.
Eric Botcazou [Mon, 7 Sep 2020 16:25:23 +0000 (18:25 +0200)]
[Ada] Implement new legality rules introduced in C.6(12) by AI12-0363
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst (VFA): Remove uage
restrictions in conjunction with Atomic and Aliased.
* gnat_rm.texi: Regenerate.
* aspects.ads (Aspect_Id): Add Aspect_Full_Access_Only.
(Is_Representation_Aspect): Likewise.
(Aspect_Names): Likewise.
(Aspect_Delay): Likewise.
* einfo.ads (Is_Atomic_Or_VFA): Rename into...
(Is_Full_Access): ...this.
(Is_Volatile_Full_Access): Document new usage for Full_Access_Only.
* einfo.adb (Is_Atomic_Or_VFA): Rename into...
(Is_Full_Access): ...this.
* freeze.ads (Is_Atomic_VFA_Aggregate): Rename into...
(Is_Full_Access_Aggregate): ...this.
* freeze.adb (Is_Atomic_VFA_Aggregate): Rename into...
(Is_Full_Access_Aggregate): ...this. Adjust to above renaming.
(Freeze_Array_Type): Likewise.
(Freeze_Entity): Likewise.
* exp_aggr.adb (Aggr_Assignment_OK_For_Backend): Likewise.
(Expand_Record_Aggregate): Likewise.
* exp_ch4.adb (Expand_N_Op_Eq): Likewise.
* exp_ch5.adb (Expand_Assign_Array): Likewise.
* exp_ch8.adb (Evaluation_Required): Likewise.
* layout.adb (Layout_Type): Likewise.
(Set_Composite_Alignment): Likewise.
* sem_aux.ads (Has_Rep_Item): Delete.
* sem_aux.adb (Has_Rep_Item): Likewise.
* sem_attr.adb (Resolve_Attribute) <Attribute_Access>: Implement
new legality rules in C.6(12).
* sem_ch12.adb (Instantiate_Object): Likewise.
* sem_res.adb (Resolve_Actuals): Likewise.
* sem_ch13.adb (Inherit_Delayed_Rep_Aspects): Deal with aspect
Full_Access_Only.
(Check_False_Aspect_For_Derived_Type): Likewise.
(Make_Pragma_From_Boolean_Aspect): Test for the presence of Expr.
Deal with aspect Full_Access_Only.
(Analyze_Aspects_At_Freeze_Point): Likewise.
(Analyze_One_Aspect): Do not set Delay_Required to true even for
Always_Delay boolean aspects if they have no expression. Force
Delay_Required to true for aspect Full_Access_Only in all cases.
Reject aspect Full_Access_Only if not in Ada 2020 mode.
(Check_Aspect_At_End_Of_Declarations): Deal with empty expression.
(Check_Aspect_At_Freeze_Point): Likewise.
(Rep_Item_Entity): Delete.
(Inherit_Aspects_At_Freeze_Point): Align handling for Bit_Order
with that for Scalar_Storage_Order.
* sem_prag.adb (Check_Atomic_VFA): Delete.
(Check_VFA_Conflicts): Likewise.
(Check_Full_Access_Only): New procedure.
(Process_Atomic_Independent_Shared_Volatile): Call to implement
the new legality checks in C.6(8/2) and mark the entity last.
(Analyze_Pragma) <Pragma_Atomic_Components>: Remove obsolete check.
* sem_util.ads (Is_Atomic_Or_VFA_Object): Rename into...
(Is_Full_Access_Object): ...this.
(Is_Subcomponent_Of_Atomic_Object): Rename into...
(Is_Subcomponent_Of_Full_Access_Object): ...this.
* sem_util.adb (Inherit_Rep_Item_Chain): Use Present_In_Rep_Item.
(Is_Atomic_Or_VFA_Object): Rename into...
(Is_Full_Access_Object): ...this.
(Is_Subcomponent_Of_Atomic_Object): Rename into...
(Is_Subcomponent_Of_Full_Access_Object): ...this and adjust.
* snames.ads-tmpl (Name_Full_Access_Only): New name of aspect.
* gcc-interface/decl.c (gnat_to_gnu_entity): Adjust for renaming.
(promote_object_alignment): Likewise.
(gnat_to_gnu_field): Likewise. Rename local variable and use
specific qualifier in error message for Volatile_Full_Access.
* gcc-interface/trans.c (lvalue_required_p): Likewise.
Eric Botcazou [Fri, 4 Sep 2020 10:34:02 +0000 (12:34 +0200)]
[Ada] Do not use Long_Long_Long_Integer'Image with pragma Discard_Names
gcc/ada/
* exp_imgv.adb (Expand_Image_Attribute): For an enumeration type
subject to pragma Discard_Names, convert 'Pos to Long_Long_Integer
before applying 'Img to the result.
Ed Schonberg [Thu, 3 Sep 2020 13:54:40 +0000 (09:54 -0400)]
[Ada] Crash on expression function and access type
gcc/ada/
* freeze.adb (Freeze_Type_Refs): Add guard on freezing of the
designated type of an access type appearing in the expression,
when expression includes an explicit dereference whose prefix
includes a function call.
Piotr Trojanek [Tue, 1 Sep 2020 08:55:34 +0000 (10:55 +0200)]
[Ada] Fix crash in SPARK on array delta_aggregate with subtype_indication
gcc/ada/
* exp_spark.adb (Expand_SPARK_Delta_Or_Update): Handle
subtype_indication; do not apply range checks for ranges; add
comment saying that others_choices is not allowed.
Ghjuvan Lacambre [Thu, 27 Aug 2020 09:27:00 +0000 (11:27 +0200)]
[Ada] CUDA: Use internal types instead of public ones
gcc/ada/
* exp_prag.adb (Get_Launch_Kernel_Arg_Type): Renamed to
Get_Nth_Arg_Type and made more generic.
(Build_Dim3_Declaration): Now builds a CUDA.Internal.Dim3
instead of a CUDA.Vector_Types.Dim3.
(Build_Shared_Memory_Declaration): Now infers needed type from
Launch_Kernel instead of using a hard-coded type.
(Expand_Pragma_CUDA_Execute): Build additional temporaries to
store Grids and Blocks.
* rtsfind.ads: Move Launch_Kernel from public to internal
package.
Arnaud Charlet [Fri, 28 Aug 2020 12:20:44 +0000 (08:20 -0400)]
[Ada] Missing detection of unused with_clause
gcc/ada/
* sem_ch4.adb (Complete_Object_Operation): Only mark entities
referenced if we are compiling the extended main unit.
* sem_attr.adb (Analyze_Attribute [Attribute_Tag]): Record a
reference on the type and its scope.
Ed Schonberg [Sat, 29 Aug 2020 14:24:55 +0000 (10:24 -0400)]
[Ada] Prevent copying uninitialized array with address clause
gcc/ada/
* freeze.adb (Is_Uninitialized_Aggregate): Recognize an array
aggregate with box initialization, scalar components, and no
component default values.
(Freeze_Entity, Check_Address_Clause): Call it, and simplify
freeze code for entity by removing useless assignment.
Javier Miranda [Fri, 28 Aug 2020 13:24:22 +0000 (09:24 -0400)]
[Ada] Spurious errors on tagged types with renamed subprograms
gcc/ada/
* sem_ch3.adb (Check_Abstract_Overriding): Subprogram renamings
cannot be overridden.
(Derive_Subprogram): Enable setting attribute
Requires_Overriding on functions with controlling access results
of record extensions with a null extension part require
overriding (AI95-00391/06).
Piotr Trojanek [Wed, 5 Aug 2020 22:53:11 +0000 (00:53 +0200)]
[Ada] Fix scope of index parameter inside a delta aggregate
gcc/ada/
* sem_aggr.adb (Resolve_Delta_Array_Aggregate): Push scope of
the implicit loop before entering name of the index parameter,
not after; enter name no matter if the identifier has been
decorated before.
Gary Dismukes [Wed, 26 Aug 2020 23:35:06 +0000 (19:35 -0400)]
[Ada] Better error for illegal call to abstract operation in instantiations
gcc/ada/
* sem_ch4.adb (Analyze_Call): In the case where the call is not
overloaded, check for a call to an abstract nondispatching
operation and flag an error.
Arnaud Charlet [Tue, 11 Aug 2020 19:42:46 +0000 (15:42 -0400)]
[Ada] Take advantage of Long_Long_Long_Integer in From_String
gcc/ada/
* libgnat/a-nbnbin.adb (From_String): Take advantage of
Long_Long_Long_Integer.
* libgnat/s-genbig.ads, libgnat/s-genbig.adb (To_Bignum): New
function taking a Long_Long_Long_Integer.
Justin Squirek [Mon, 24 Aug 2020 18:17:36 +0000 (14:17 -0400)]
[Ada] Iterative patch for accessibility cleanup
gcc/ada/
* sem_util.adb (Accessibility_Call_Helper): In the selected
component case, test if a prefix is a function call and whether
the subprogram call is not being used in its entirety and use
the Innermost_Master_Scope_Depth in that case.
(Innermost_Master_Scope_Depth): Test against the node_par
instead of its identifier to avoid misattributing unnamed blocks
as not being from source.
(Function_Call_Level): Add calculation for whether a subprogram
call is initializing an object in its entirety.
(Subprogram_Call_Level): Renamed to Function_Call_Level.
Piotr Trojanek [Wed, 26 Aug 2020 11:18:48 +0000 (13:18 +0200)]
[Ada] Fix default value for re-analysis of external property pragmas
gcc/ada/
* sem_prag.adb (Analyze_External_Property_In_Decl_Part): Set the
output parameter Expr_Val to the (implicit) pragma argument even
when returning early.
Jakub Jelinek [Fri, 23 Oct 2020 08:11:41 +0000 (10:11 +0200)]
Fix up plugin header install
Jeff has noticed and I've confirmed that config/i386/i386.h header which is
installed on x86 in plugin/include/ directory newly in GCC 11 has
which breaks all plugins that include tm.h etc. because that header is not
shipped.
The following patch seems to fix that. Unfortunately it isn't just a matter
of TM_H += t-i386 change, because the header has full path and therefore
needs to be installed in its full path.
Additionally, I've noticed that the b-header-vars generation is completely
broken, it will just throw many of the dependencies away, because it
incorrectly removed everything from first ... remaining till the last /,
while what it clearly wants to do is remove each ... till last / in the same
header path (i.e. instead of .* should have used [^ ]* and g modifier).
I've also noticed that some other headers mentioned in #include of other
headers aren't included (gomp-constants.h as dependency of omp-general.h
and various dependencies of expr.h (where omp-general.h and expr.h were
previously installed)).
2020-10-23 Jakub Jelinek <jakub@redhat.com>
* Makefile.in (PLUGIN_HEADERS): Add gomp-constants.h and $(EXPR_H).
(s-header-vars): Accept not just spaces but also tabs between *_H name
and =. Handle common/config/ headers similarly to config. Don't
throw away everything from first ... to last / on the remaining
string, instead skip just ... to corresponding last / without
intervening spaces and tabs.
(install-plugin): Treat common/config headers like config headers.
* config/i386/t-i386 (TM_H): Add
$(srcdir)/common/config/i386/i386-cpuinfo.h.
Jakub Jelinek [Fri, 23 Oct 2020 08:05:17 +0000 (10:05 +0200)]
stor-layout: Reject forming arrays with elt sizes not divisible by elt alignment [PR97164]
As mentioned in the PR, since 2005 we reject if array elements are smaller
than their alignment (i.e. overaligned elements), because such arrays don't
make much sense, only their first element is guaranteed to be aligned as
user requested, but the next element can't be.
The following testcases show something we've been silent about but is
equally bad, the 2005 case is just the most common special case of that
the array element size is not divisible by the alignment. In those arrays
too only the first element is guaranteed to be properly aligned and the
second one can't be.
This patch rejects those cases too, but keeps the existing wording for the
old common case.
Unfortunately, the patch breaks bootstrap, because libbid uses this mess
(forms arrays with 24 byte long elements with 16 byte element alignment).
I don't really see justification for that, so I've decreased the alignment
to 8 bytes instead.
2020-10-23 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/97164
gcc/
* stor-layout.c (layout_type): Also reject arrays where element size
is constant, but not a multiple of element alignment.
gcc/testsuite/
* c-c++-common/pr97164.c: New test.
* gcc.c-torture/execute/pr36093.c: Move ...
* gcc.dg/pr36093.c: ... here. Add dg-do compile and dg-error
directives.
* gcc.c-torture/execute/pr43783.c: Move ...
* gcc.dg/pr43783.c: ... here. Add dg-do compile, dg-options and
dg-error directives.
libgcc/config/libbid/
* bid_functions.h (UINT192): Decrease alignment to 8 bytes.
projects / thirdparty / gcc.git / log
