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2019-08-20 Gary Dismukes <dismukes@adacore.com>
gcc/ada/
* ali.adb, ali.ads, aspects.adb, checks.ads, checks.adb,
doc/gnat_rm/implementation_defined_pragmas.rst,
doc/gnat_ugn/building_executable_programs_with_gnat.rst,
einfo.ads, exp_aggr.adb, exp_ch11.adb, exp_ch3.ads, exp_ch4.adb,
exp_disp.adb, inline.adb, libgnat/a-locale.ads,
libgnat/s-soflin.ads, par_sco.adb, repinfo.adb, sem_ch5.adb,
sem_disp.adb, sem_elab.adb, sem_eval.adb, sem_spark.adb,
sem_spark.ads, sinfo.ads: Minor reformattings, typo fixes and
and rewordings.
From-SVN: r274737
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Where possible GNAT will store the binary representation of a record
aggregate in memory for space and performance reasons. This
configuration pragma changes this behaviour so that record aggregates
are instead always converted into individual assignment statements.
The following package pack.ads:
-- pack.ads
pragma Aggregate_Individually_Assign;
pragma Restrictions (No_Multiple_Elaboration);
package Pack is
type A_Rec is record
A, B, C, D : Boolean;
end record;
A : A_Rec := (True, False, True, True);
end Pack;
when compiled with
gcc -c -gnatdg pack.ads
should produce the following output:
Source recreated from tree for Pack (spec)
------------------------------------------
pragma aggregate_individually_assign;
pragma restrictions (no_multiple_elaboration);
package pack is
type pack__a_rec is record
a : boolean;
b : boolean;
c : boolean;
d : boolean;
end record;
freeze pack__a_rec [
procedure pack__a_recIP (_init : out pack__a_rec) is
begin
%push_constraint_error_label ()
%push_program_error_label ()
%push_storage_error_label ()
null;
%pop_constraint_error_label
%pop_program_error_label
%pop_storage_error_label
return;
end pack__a_recIP;
]
pack__a : pack__a_rec := (
a => true,
b => false,
c => true,
d => true);
pack__a.a := true;
pack__a.b := false;
pack__a.c := true;
pack__a.d := true;
null;
end pack;
2019-08-20 Patrick Bernardi <bernardi@adacore.com>
gcc/ada/
* exp_aggr.adb (Expand_Record_Aggregate): Always convert a
record Aggregate to assignment statements if the option
Aggregate_Individually_Assign is set.
* opt.ads (Aggregate_Individually_Assign): New option.
* par-prag.adb (Prag): Add Pragma_Aggregate_Individually_Assign.
* sem_prag.adb (Analyze_Pragma): Likewise.
* snames.ads-tmpl: Add Pragma_Aggregate_Individually_Assign and
Name_Aggregate_Individually_Assign.
* doc/gnat_rm/implementation_defined_pragmas.rst: Document
pragma Aggregate_Individually_Assign.
* gnat_rm.texi: Regenerate.
From-SVN: r274730
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The compiler can now warn for out-of-order record representation
clauses. A warning is given if the order of component declarations,
component clauses, and bit-level layout do not all agree. The warning
is disabled by default, and may be enabled by the -gnatw_r switch.
2019-08-20 Bob Duff <duff@adacore.com>
gcc/ada/
* sem_ch13.adb (Component_Order_Check): New procedure to check
for out-of-order clauses.
* warnsw.ads, warnsw.adb: New -gnatw_r switch.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Document new switch.
* gnat_ugn.texi: Regenerate.
From-SVN: r274723
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Pragma Warning_As_Error now works for style warnings (messages that
start with "(style)", enabled by -gnaty) the same way it works for
regular warnings enabled by -gnatw.
The following test should fail to build with style checks:
gnat.adc:
pragma Warning_As_Error ("two spaces required");
style.adb:
procedure Style is
X : Integer;
begin
null;
--Hello
end;
gnatmake -q -f -g style.adb -gnaty
should get:
style.adb:2:04: warning: variable "X" is never read and never assigned
style.adb:5:06: error: (style) two spaces required [warning-as-error]
style.adb:6:01: (style) "end Style" required
gnatmake: "style.adb" compilation error
and no executable should be created.
2019-08-20 Bob Duff <duff@adacore.com>
gcc/ada/
* errout.adb (Error_Msg_Internal): Set Warn_Err in case of
Is_Style_Msg.
* erroutc.adb (Output_Msg_Text): Do Warnings_Treated_As_Errors
processing and [warning-as-error] modification for style
messages. Clean up code, simplify, remove unnecessary block
statement, add renaming of table entry.
* erroutc.ads (Warning_Treated_As_Error): Fix comment: no such
thing as Set_Warning_As_Error.
* opt.ads: Clean up comments and move related declarations near
each other.
* par-prag.adb: Process Warning_As_Error. This is necessary
because many style warning happen during parsing.
* sem_prag.adb: Use new Acquire_Warning_Match_String.
* sem_util.ads, sem_util.adb (Acquire_Warning_Match_String): New
function shared by par-prag.adb and sem_prag.adb. Replaces the
procedure in sem_prag.adb. Avoid use of global variables.
* stringt.ads, stringt.adb (To_String): New function to convert
String_Id to String.
* doc/gnat_rm/implementation_defined_pragmas.rst: Document the
new feature.
* gnat_rm.texi: Regenerate.
From-SVN: r274721
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2019-08-20 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst: Document
requirements for Pragma Lock_Free.
* gnat_rm.texi: Regenerate.
From-SVN: r274717
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2019-08-19 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_advice.rst: Fix documentation for
stream oriented attributes.
* gnat_rm.texi: Regenerate.
From-SVN: r274666
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2019-08-19 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Document missing
metrics switches.
From-SVN: r274646
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An Alignment clause or an aspect_specification for Alignment may be
specified as 0, which is treated the same as 1.
2019-08-14 Bob Duff <duff@adacore.com>
gcc/ada/
* sem_ch13.adb (Get_Alignment_Value): Return 1 for Alignment 0,
and do not give an error.
* doc/gnat_rm/representation_clauses_and_pragmas.rst: Update the
corresponding documentation.
* gnat_rm.texi: Regenerate.
gcc/testsuite/
* gnat.dg/alignment15.adb: New testcase.
From-SVN: r274473
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The compiler now warns if the condition in a pragma Compile_Time_Warning
or Compile_Time_Error does not have a compile-time-known value. The
warning is not given for pragmas in a generic template, but is given for
pragmas in an instance.
The -gnatw_c and -gnatw_C switches turn the warning on and off. The
default is on.
2019-08-14 Bob Duff <duff@adacore.com>
gcc/ada/
* sem_prag.ads, sem_prag.adb
(Process_Compile_Time_Warning_Or_Error): In parameterless
version, improve detection of whether we are in a generic unit
to cover the case of an instance within a generic unit.
(Process_Compile_Time_Warning_Or_Error): Rename the
two-parameter version to be
Validate_Compile_Time_Warning_Or_Error, and do not export it.
Issue a warning if the condition is not known at compile time.
The key point is that the warning must be given only for pragmas
deferred to the back end, because the back end discovers
additional values that are known at compile time. Previous
changes in this ticket have enabled this by deferring to the
back end without checking for special cases such as 'Size.
(Validate_Compile_Time_Warning_Or_Error): Rename to be
Defer_Compile_Time_Warning_Error_To_BE.
* warnsw.ads, warnsw.adb (Warn_On_Unknown_Compile_Time_Warning):
Add new switches -gnatw_c and -gnatw_C to control the above
warning.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Document new switches.
* gnat_ugn.texi: Regenerate.
gcc/testsuite/
* gnat.dg/warn27.adb: New testcase.
From-SVN: r274469
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2019-08-14 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst: Remove
documentation of gnatelim.
From-SVN: r274462
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2019-08-13 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst
(-gnateT): Document Double_Float_Alignment parameter and fix
description of Double_Scalar_Alignment parameter.
* gnat_ugn.texi: Regenerate.
From-SVN: r274337
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Remove documentation for Ada language version switches, and note that
they are no longer needed. These tools now silently ignore such
switches, and process the file correctly no matter what version of Ada
is used.
2019-08-12 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst (gnatmetric, gnatpp,
gnatstub): Remove documentation for Ada language version
switches, and note that they are no longer needed.
From-SVN: r274299
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A new aspect/pragma can be attached to volatile variables to indicate
that such a variable is not used for interactions with the external
world, but only that accesses to that variable should not be optimized
by the compiler. This is in particular useful for guarding against fault
injection. SPARK Reference manual has been updated to allow this use of
volatile data, see section 7.1.2, so that GNATprove can analyze such
variables as not volatile.
2019-08-12 Yannick Moy <moy@adacore.com>
gcc/ada/
* aspects.adb, aspects.ads (Aspect_No_Caching): New aspect.
* contracts.adb, contracts.ads (Add_Contract_Item): Add handling
of No_Caching.
(Analyze_Object_Contract): Add handling of No_Caching.
* einfo.adb, einfo.ads
(Get_Pragma): Add handling of No_Caching.
* doc/gnat_rm/implementation_defined_aspects.rst,
doc/gnat_rm/implementation_defined_pragmas.rst: Document new
aspect/pragma.
* gnat_rm.texi: Regenerate.
* par-prag.adb (Prag): New pragma Pragma_No_Caching.
* sem_ch13.adb (Analyze_Aspect_Specifications,
Check_Aspect_At_Freeze_Point): Add handling of No_Caching.
* sem_prag.adb (Analyze_Pragma): Deal with pragma No_Caching.
* sem_prag.ads (Analyze_External_Property_In_Decl_Part): Now
applies to No_Caching.
* sem_util.adb, sem_util.ads (Is_Effectively_Volatile): Add
handling of No_Caching.
(No_Caching_Enabled): New query function.
* snames.ads-tmpl: New names for pragma.
gcc/testsuite/
* gnat.dg/no_caching.adb, gnat.dg/no_caching.ads: New testcase.
From-SVN: r274292
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The new minimal binder option ("-minimal") suppresses the generation of
binder objects that are not strictly required for program operation.
This option is suitable for space constrained applications and comes
with the restriction that programs can no longer be debugged using GDB.
2019-07-11 Patrick Bernardi <bernardi@adacore.com>
gcc/ada/
* bindgen.adb (Gen_Main): Do not generate a reference to
Ada_Main_Program_Name when the Minimal_Binder flag is set.
(Gen_Output_File_Ada): Do not output GNAT_Version and
Ada_Main_Program_Name info if Minimal_Binder flag is set.
* bindusg.adb: Add documentation for new -minimal switch.
* gnatbind.adb (Scan_Bind_Arg): Scan -minimal switch.
* opt.ads: Add new global flag Minimal_Binder to indicate if the
binder should not produce global variables.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Update documentation with new binder -minimal switch.
* gnat_ugn.texi: Regenerate.
From-SVN: r273401
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One part said all metrics are enabled by default (which is now true),
and another part said the coupling metrics are disabled by default
(which is no longer true).
2019-07-11 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Fix inconsistent
documentation for gnatmetric.
* gnat_ugn.texi: Regenerate.
From-SVN: r273391
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2019-07-11 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Document gnatpp's
--spaces-only switch.
From-SVN: r273390
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2019-07-10 Arnaud Charlet <charlet@adacore.com>
gcc/ada
* doc/gnat_ugn/gnat_and_program_execution.rst: Improve gnatmem's
doc for the depth switch.
From-SVN: r273346
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2019-07-10 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Document gnatpp's
--source-line-breaks switch.
From-SVN: r273345
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2019-07-10 Justin Squirek <squirek@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_defined_attributes.rst: Add mention
of 'Image attribute with 'Img's entry to mention additional
added 2012 usage of Obj'Image.
* doc/gnat_rm/implementation_defined_pragmas.rst: Correct
mispelling of Async_Writers.
* gnat_rm.texi: Regenerate.
* sem_prag.adb (Analyze_Pragma): Correct mispelling of
Async_Writers.
* sem_util.adb (State_Has_Enabled_Property): Correct mispelling
of Async_Writers.
From-SVN: r273344
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This adds a new GNAT.Branch_Prediction package to make it possible to
tune the branch probability heuristics more finely. This package
contains the equivalent of __builtin_expect in C/C++ plus a couple of
specializations.
The following program gives a summary of the usage:
package Q is
I : Integer;
pragma Volatile (I);
end Q;
with GNAT.Branch_Prediction; use GNAT.Branch_Prediction;
with Text_IO; use Text_IO;
with Q; use Q;
procedure P is
begin
if Unlikely (I = 0) then
Put_Line ("Zero was passed");
return;
end if;
if Likely (I > 0) then
Put_Line ("A positive number was passed");
else
Put_Line ("A negative number was passed");
end if;
if Expect ((I rem 2) = 0, False) then
Put_Line ("An even number was passed");
else
Put_Line ("An odd number was passed");
end if;
end;
2019-07-10 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* Makefile.rtl (GNATRTL_NONTASKING_OBJS): Add g-brapre.
* libgnat/g-brapre.ads: New package specification.
* doc/gnat_rm/the_gnat_library.rst: Document it.
* gnat_rm.texi: Regenerate.
From-SVN: r273340
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2019-07-10 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_defined_attributes.rst
(Scalar_Storage_Order): Minor tweaks. Add note about debuggers.
* gnat_rm.texi: Regenerate.
From-SVN: r273337
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This patch enhances the compiler to add an optional warning for
allocators of anonymous access types due to the somewhat confusing
runtime accessibility checks that they generate. For more details see RM
3.10.2 sections 14/3, 14.1/3, and 14.2/3.
These warnings can now be enabled with -gnatw_a, disabled with -gnatw_A
and are part of the "all warnings" flag -gnatwa.
------------
-- Source --
------------
-- main.adb
procedure Main is
type Int_Ptr is access all Integer;
Ptr_Obj : Int_Ptr;
Ptr_Not_Null_Obj : not null Int_Ptr := new Integer;
Ptr_Anon_Acc_Obj : not null access Integer :=
new Integer; -- WARNING
procedure Update_Ptr (Item : access Integer) is
begin
Ptr_Obj := Int_Ptr (Item); -- RUNTIME ERROR
end;
procedure Update_Ptr_With_Anonymous_Allocator is
Item : access Integer := new Integer;
begin
Update_Ptr (Item);
end;
type Rec_With_Coextension_A (Disc : access Integer)
is null record;
type Rec_With_Coextension_B (Disc : access Integer) is record
Comp : Integer;
end record;
Obj : Rec_With_Coextension_A :=
(Disc => new Integer'(32)); -- WARNING
procedure Test_Param (Param : access Integer) is
begin
null;
end;
function Test_Simple_Return return access Integer is
begin
return new Integer; -- WARNING
end;
function Test_Coextension_Return_A return Rec_With_Coextension_A is
begin
return (Disc => new Integer); -- WARNING
end;
function Test_Coextension_Return_B return Rec_With_Coextension_B is
begin
return (new Integer, 32); -- WARNING
end;
begin
Test_Param (new Integer); -- WARNING
Test_Param (Param => new Integer); -- WARNING
Update_Ptr_With_Anonymous_Allocator;
end;
-----------------
-- Compilation --
-----------------
$ gnatmake -q -gnatw_a main.adb
$ rm *.ali
$ gnatmake -q -gnatwa -gnatw_A main.adb
$ rm *.ali
$ gnatmake -q -gnatwa main.adb
$ main
main.adb:8:06: warning: use of an anonymous access type allocator
main.adb:16:32: warning: use of an anonymous access type allocator
main.adb:29:15: warning: use of an anonymous access type allocator
main.adb:38:14: warning: use of an anonymous access type allocator
main.adb:43:23: warning: coextension will not be deallocated when
its associated owner is deallocated
main.adb:43:23: warning: use of an anonymous access type allocator
main.adb:48:15: warning: coextension will not be deallocated when
its associated owner is deallocated
main.adb:48:15: warning: use of an anonymous access type allocator
main.adb:52:16: warning: use of an anonymous access type allocator
main.adb:53:25: warning: use of an anonymous access type allocator
main.adb:5:04: warning: variable "Ptr_Obj" is assigned but never read
main.adb:6:04: warning: variable "Ptr_Not_Null_Obj" is not referenced
main.adb:7:04: warning: variable "Ptr_Anon_Acc_Obj" is not referenced
main.adb:16:07: warning: "Item" is not modified, could be declared constant
main.adb:28:04: warning: variable "Obj" is not referenced
main.adb:36:13: warning: function "Test_Simple_Return" is not referenced
main.adb:41:13: warning: function "Test_Coextension_Return_A" is not referenced
main.adb:43:23: warning: coextension will not be deallocated when its
associated owner is deallocated
main.adb:46:13: warning: function "Test_Coextension_Return_B" is not referenced
main.adb:48:15: warning: coextension will not be deallocated when its
associated owner is deallocated
main.adb:5:04: warning: variable "Ptr_Obj" is assigned but never read
main.adb:6:04: warning: variable "Ptr_Not_Null_Obj" is not referenced
main.adb:7:04: warning: variable "Ptr_Anon_Acc_Obj" is not referenced
main.adb:8:06: warning: use of an anonymous access type allocator
main.adb:16:07: warning: "Item" is not modified, could be declared constant
main.adb:16:32: warning: use of an anonymous access type allocator
main.adb:28:04: warning: variable "Obj" is not referenced
main.adb:29:15: warning: use of an anonymous access type allocator
main.adb:36:13: warning: function "Test_Simple_Return" is not referenced
main.adb:38:14: warning: use of an anonymous access type allocator
main.adb:41:13: warning: function "Test_Coextension_Return_A" is not referenced
main.adb:43:23: warning: coextension will not be deallocated when its
associated owner is deallocated
main.adb:43:23: warning: use of an anonymous access type allocator
main.adb:46:13: warning: function "Test_Coextension_Return_B" is not referenced
main.adb:48:15: warning: coextension will not be deallocated when its
associated owner is deallocated
main.adb:48:15: warning: use of an anonymous access type allocator
main.adb:52:16: warning: use of an anonymous access type allocator
main.adb:53:25: warning: use of an anonymous access type allocator
raised PROGRAM_ERROR : main.adb:12 accessibility check failed
2019-07-09 Justin Squirek <squirek@adacore.com>
gcc/ada/
* exp_ch4.adb (Expand_N_Allocator): Add conditional to detect
the presence of anoymous access type allocators and issue a
warning if the appropriate warning flag is enabled.
* warnsw.ads: Add new warning flag for anonymous allocators
* warnsw.adb (All_Warnings, Restore_Warnings, Save_Warnings,
Set_Underscore_Warning_Switch): Register new flags.
(WA_Warnings): Register new flag as an "all warnings" switch
* usage.adb,
doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Document new warning switches -gnatw_a and -gnatw_A.
* gnat_ugn.texi: Regenerate.
From-SVN: r273290
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Replace ". " (i.e. a period followed by two spaces) with ". "; this is
meant to avoid distraction when reading comments, except for the license
section, where apparently this makes the formating nicer. Some comments
have been refilled, in particular those that could fit into fewer lines.
Also, some occurences of this patter in code has also been removed, e.g.
in "J in 1 .. 3".
2019-07-09 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* ali.ads, bindo-graphs.adb, bindo-validators.adb, clean.adb,
doc/gnat_ugn/elaboration_order_handling_in_gnat.rst, einfo.ads,
exp_aggr.adb, exp_ch13.adb, exp_ch4.adb, exp_ch5.adb,
exp_ch6.adb, exp_ch7.adb, exp_ch9.adb, exp_pakd.adb,
fname-uf.ads, gnatlink.adb, inline.adb, lib.ads, make.adb,
namet.ads, opt.ads, par-ch4.adb, par-ch6.adb, par-labl.adb,
prep.adb, sem_aggr.adb, sem_ch13.adb, sem_ch4.adb, sem_ch5.adb,
sem_ch6.adb, sem_ch6.ads, sem_ch7.adb, sem_ch8.adb, sem_dim.adb,
sem_disp.adb, sem_prag.adb, sem_res.adb, sem_warn.adb,
sinfo.ads: Replace ". " with ". ". Minor reformatting and typo
corrections.
* gnat_ugn.texi: Generate.
From-SVN: r273287
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This patch adds another suggestion to the elaboration order diagnostics.
An elaboration circularity involving a task activation may be resolved
through pragma Restrictions (No_Entry_Calls_In_Elaboration_Code).
------------
-- Source --
------------
-- no_entry_calls.txt
pragma Restrictions (No_Entry_Calls_In_Elaboration_Code);
-- a.ads
package A is
task type Task_Typ is
entry Start;
end Task_Typ;
procedure Proc;
end A;
-- a.adb
with B;
package body A is
task body Task_Typ is
begin
accept Start;
B.Proc;
end Task_Typ;
Elab : Task_Typ;
procedure Proc is null;
end A;
-- b.ads
package B is
procedure Proc;
end B;
-- b.adb
with A;
package body B is
procedure Proc is
begin
A.Proc;
end Proc;
end B;
-- main.adb
with A;
-- +--> A spec B spec
-- | ^ ^ ^
-- | | with | |
-- | sbb | +----------------+ | sbb
-- | | | |
-- | | | Invocation |
-- | A body ------------> B body
-- | ^ | |
-- | | Invocation | |
-- | +------------------+ |
-- | |
-- | Invocation |
-- +---------------------------+
--
-- The cycle is:
--
-- A body --> A body
procedure Main is begin null; end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -f -q main.adb -gnatd_F
$ gnatmake -f -q main.adb -gnatec=no_entry_calls.txt
error: Elaboration circularity detected
info:
info: Reason:
info:
info: unit "a (body)" depends on its own elaboration
info:
info: Circularity:
info:
info: unit "a (body)" invokes a construct of unit "a (body)" at
elaboration time
info: path 1:
info: elaboration of unit "a (body)"
info: activation of local task declared at "a.ads":2:14
info: call to subprogram "proc" declared at "b.ads":2:14
info: call to subprogram "proc" declared at "a.ads":6:14
info:
info: Suggestions:
info:
info: use pragma Restrictions (No_Entry_Calls_In_Elaboration_Code)
info: use the dynamic elaboration model (compiler switch -gnatE)
info:
gnatmake: *** bind failed.
2019-07-09 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* bindo.ads: Move type Precedence_Kind from the private to the
visible part of the unit.
* bindo-augmentors.adb: Remove the use of global data as it is
bad practice.
(Augment_Library_Graph): Update the parameter profile.
(Is_Visited, Set_Is_Visited): Remove.
(Visit_Elaboration_Root, Visit_Elaboration_Roots): Update the
parameter profile and comment on usage.
(Visit_Vertex): Likewise. Also keep track of which invocation
edge activates a task.
* bindo-augmentors.ads (Augment_Library_Graph): Update the
parameter profile and comment on usage.
* bindo-builders.adb (Create_Forced_Edge,
Create_Spec_And_Body_Edge, Create_With_Edge): Update the call to
Add_Edge.
* bindo-diagnostics.adb: Add with end use clauses for Restrict
and Rident.
(Output_Dynamic_Model_Suggestions): Remove.
(Output_Invocation_Related_Suggestions): New routine.
(Output_Suggestions): Output all invocation-related suggestions
together.
* bindo-elaborators.adb: Remove types Comparator_Ptr and
Predicate_Ptr.
(Find_Best_Vertex): Update the parameter profile.
* bindo-graphs.adb (Activates_Task): New routine.
(Add_Body_Before_Spec_Edge): Update the call to
Add_Edge_With_Return.
(Add_Edge): Update the parameter profile and the call to
Add_Edge_With_Return.
(Add_Edge_With_Return): Update the parameter profile and comment
on usage.
(At_Least_One_Edge_Satisfies): New routine.
(Contains_Elaborate_All_Edge): Reimplement.
(Contains_Static_Successor_Edge, Contains_Task_Activation): New
routine.
(Contains_Weak_Static_Successor): Remove.
(Is_Static_Successor_Edge): New routine.
* bindo-graphs.ads: Add types LGE_Predicate_Ptr,
LGV_Comparator_Ptr, and LGV_Predicate_Ptr. Update type
Library_Graph_Edge_Attributes to capture whether an invocation
edge activates a task. Update the value of
No_Library_Graph_Edge_Attributes.
(Activates_Task): Update the parameter profile and comment on
usage.
(Contains_Static_Successor_Edge, Contains_Task_Activation): New
routines.
(Contains_Weak_Static_Successor): Remove.
* doc/gnat_ugn/elaboration_order_handling_in_gnat.rst:
Update the documentation to reflect the new task-related advice.
* gnat_ugn.texi: Regenerate.
From-SVN: r273286
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This patch enables the elaboration order v4.0 as the default elaboration
order in GNATbind. The previous v3.0 elaboration order is now referred
to as the "legacy elaboration order mechanism" and is available using
binder switch -H.
2019-07-09 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* bindo.adb: Remove with and use clauses for Debug. Add with
and use clauses for Opt.
(Find_Elaboration_Order): Enable the v4.0 elaboration order. The
v3.0 mechanism is now available under binder switch -H.
* bindusg.adb (Display): Enable switch -H.
* debug.adb: Free compiler switch -gnatd_G. Free binder switch
-d_N.
* sem_elab.adb: Update the section on switches to remove
-gnatd_G.
(Invocation_Graph_Recording_OK): The invocation graph is now
unconditionally recorded in ALI files.
* switch-b.adb (Scan_Binder_Switches): Scan switch -H.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Update the documentation on compiler switches related to
elaboration. Update the documentation on binder switches to
include switch -H.
* doc/gnat_ugn/elaboration_order_handling_in_gnat.rst: Update
the documentation on elaboration order handling in GNAT.
* gnat_ugn.texi: Regenerate.
From-SVN: r273280
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2019-07-09 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* doc/gnat_rm/the_gnat_library.rst,
doc/gnat_ugn/building_executable_programs_with_gnat.rst,
erroutc.adb, libgnat/g-comlin.adb, libgnat/g-comlin.ads,
libgnat/g-regexp.ads, libgnat/g-regpat.ads,
libgnat/g-spipat.ads, libgnat/s-os_lib.ads,
libgnat/s-regexp.ads: Reword "wild card" to "wildcard".
* gnat_rm.texi, gnat_ugn.texi: Regenerate.
From-SVN: r273272
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2019-07-09 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst: Update doc on
-fdump-ada-spec now that we generate Ada 2012.
* gnat_ugn.texi: Regenerate.
From-SVN: r273264
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|
2019-07-08 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Update documentation on No_Exceptions restriction.
* gnat_rm.texi: Regenerate.
From-SVN: r273224
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2019-07-08 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Remove documentation
of ignored GNATpp switch.
From-SVN: r273221
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|
Update the documentation of pragma Initialize_Scalars in the GNAT
Reference Manual.
2019-07-08 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst:
Update the documentation of pragma Initialize_Scalars.
* gnat_rm.texi: Regenerate.
From-SVN: r273220
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|
2019-07-08 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Document handling of
preprocessor directives in GNATpp.
From-SVN: r273203
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|
2019-07-05 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* doc/gnat_ugn/platform_specific_information.rst: Refresh doc on
installing from the command line on Windows. Remove obsolete
part.
* gnat_ugn.texi: Regenerate.
From-SVN: r273126
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2019-07-05 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Fix typo.
* gnat_rm.texi: Regenerate.
From-SVN: r273104
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2019-07-04 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst: Fix
capitalization and parenthesis glitches.
* gnat_rm.texi: Regenerate.
From-SVN: r273068
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2019-07-04 Dmitriy Anisimkov <anisimko@adacore.com>
gcc/ada/
* doc/gnat_ugn/platform_specific_information.rst: Document
Windows socket timeout particularity.
* gnat_ugn.texi: Regenerate.
* gsocket.h: Include versionhelpers.h.
* socket.c (__gnat_minus_500ms): New function.
* libgnat/g-sothco.ads (Minus_500ms_Windows_Timeout): New
imported function.
* libgnat/g-socket.adb (Set_Socket_Option): Refactor to remove
500ms from the requested timeout only on old Windows version.
From-SVN: r273045
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2019-07-03 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Document new flags in
GNATpp.
From-SVN: r272988
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|
2019-07-03 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Document default
new-line behavior.
From-SVN: r272977
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This patch implements a new switch, -gnatyD, enables a style check that
requires defining identifiers to be in mixed case.
2019-07-03 Bob Duff <duff@adacore.com>
gcc/ada/
* par-ch3.adb (P_Defining_Identifier): Call
Check_Defining_Identifier_Casing.
* style.ads, styleg.ads, styleg.adb
(Check_Defining_Identifier_Casing): New procedure to check for
mixed-case defining identifiers.
* stylesw.ads, stylesw.adb (Style_Check_Mixed_Case_Decls): New
flag for checking for mixed-case defining identifiers.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Document new feature.
* gnat_ugn.texi: Regenerate.
From-SVN: r272972
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The -gnatw.z switch causes the compiler to issue a warning on record
types subject to both an alignment clause and a size clause, when the
specified size is not a multiple of the alignment in bits, because this
means that the Object_Size will be strictly larger than the specified
size.
It makes sense to extend this warning to array types, but not to the
cases of bit-packed arrays where the size is not a multiple of storage
unit and the specified alignment is the minimum one, because there would
be no way to get rid of it apart from explicitly silencing it.
The compiler must issue the warning:
p.ads:5:03: warning: size is not a multiple of alignment for "Triplet"
p.ads:5:03: warning: size of 24 specified at line 4
p.ads:5:03: warning: Object_Size will be increased to 32
on the following package:
package P is
type Triplet is new String (1 .. 3);
for Triplet'Size use 24;
for Triplet'Alignment use 4;
type Arr is array (1 .. 7) of Boolean;
pragma Pack (Arr);
for Arr'Size use 7;
for Arr'Alignment use 1;
end P;
2019-07-03 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst
(Warning message control): Document that -gnatw.z/Z apply to
array types.
* freeze.adb (Freeze_Entity): Give -gnatw.z warning for array
types as well, but not if the specified alignment is the minimum
one.
* gnat_ugn.texi: Regenerate.
From-SVN: r272971
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2019-07-03 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* doc/gnat_ugn/elaboration_order_handling_in_gnat.rst: Update
the section on resolving elaboration circularities to eliminate
certain combinations of switches which together do not produce
the desired effect and confuse users.
* gnat_ugn.texi: Regenerate.
From-SVN: r272966
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2019-07-03 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Clarify wording on No_Multiple_Elaboration.
* gnat_rm.texi: Regenerate.
From-SVN: r272962
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2019-07-03 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_rm/interfacing_to_other_languages.rst (Interfacing to C):
Document that boolean types with convention C now map to C99 bool.
* gnat_rm.texi: Regenerate.
From-SVN: r272960
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2019-07-01 Pat Rogers <rogers@adacore.com>
gcc/ada/
* doc/gnat_rm/representation_clauses_and_pragmas.rst: Correct
size indicated for R as a component of an array.
* gnat_rm.texi: Regenerate.
From-SVN: r272869
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2019-07-01 Pierre-Marie de Rodat <derodat@adacore.com>
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Fix
formatting issues in the -gnatR section.
* gnat_ugn.texi: Regenerate.
From-SVN: r272853
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optional parameters.
* doc/gnat_rm/implementation_defined_pragmas.rst (Machine_Attribute):
Document additional optional parameters.
* sem_prag.adb (Analyze_Pragma) <Pragma_Machine_Attribute>: Accept
more than one optional parameter.
* gcc-interface/decl.c (prepend_one_attribute_pragma): Alphabetize
the list of supported pragmas. Simplify the handling of parameters
and add support for more than one optional parameter.
* gcc-interface/utils.c (attr_cold_hot_exclusions): New constant.
(gnat_internal_attribute_table): Add entry for no_icf, noipa, flatten,
used, cold, hot, target and target_clones.
(begin_subprog_body): Do not create the RTL for the subprogram here.
(handle_noicf_attribute): New static function.
(handle_noipa_attribute): Likewise.
(handle_flatten_attribute): Likewise.
(handle_used_attribute): Likewise.
(handle_cold_attribute): Likewise.
(handle_hot_attribute): Likewise.
(handle_target_attribute): Likewise.
(handle_target_clones_attribute): Likewise.
From-SVN: r271693
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Part of RC12-001
From-SVN: r267079
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2018-12-11 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Update gnatmetric
documentation for the Libadalang-based version.
From-SVN: r266983
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2018-12-11 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Update gnatstub
documentation for the Libadalang-based version.
* gnat_ugn.texi: Regenerate.
From-SVN: r266981
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2018-12-11 Pierre-Marie de Rodat <derodat@adacore.com>
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Document the -fgnat-encodings switch.
* gnat_ugn.texi: Regenerate.
From-SVN: r266979
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This adds a 4th information level for the -gnatR output, where relevant
compiler-generated types are listed in addition to the information
already output by -gnatR3.
For the following package P:
package P is
type Arr0 is array (Positive range <>) of Boolean;
type Rec (D1 : Positive; D2 : Boolean) is record
C1 : Integer;
C2 : Arr0 (1 .. D1);
case D2 is
when False =>
C3 : Character;
when True =>
C4 : String (1 .. 3);
C5 : Float;
end case;
end record;
type Arr1 is array (1 .. 8) of Rec (1, True);
end P;
the output generated by -gnatR4 must be:
Representation information for unit P (spec)
--------------------------------------------
for Arr0'Alignment use 1;
for Arr0'Component_Size use 8;
for Rec'Object_Size use 17179869344;
for Rec'Value_Size use (if (#2 != 0) then ((((#1 + 15) & -4) + 8) * 8)
else ((((#1 + 15) & -4) + 1) * 8) end);
for Rec'Alignment use 4;
for Rec use record
D1 at 0 range 0 .. 31;
D2 at 4 range 0 .. 7;
C1 at 8 range 0 .. 31;
C2 at 12 range 0 .. ((#1 * 8)) - 1;
C3 at ((#1 + 15) & -4) range 0 .. 7;
C4 at ((#1 + 15) & -4) range 0 .. 23;
C5 at (((#1 + 15) & -4) + 4) range 0 .. 31;
end record;
for Arr1'Size use 1536;
for Arr1'Alignment use 4;
for Arr1'Component_Size use 192;
for Tarr1c'Size use 192;
for Tarr1c'Alignment use 4;
for Tarr1c use record
D1 at 0 range 0 .. 31;
D2 at 4 range 0 .. 7;
C1 at 8 range 0 .. 31;
C2 at 12 range 0 .. 7;
C4 at 16 range 0 .. 23;
C5 at 20 range 0 .. 31;
end record;
2018-11-14 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst
(-gnatR): Document new -gnatR4 level.
* gnat_ugn.texi: Regenerate.
* opt.ads (List_Representation_Info): Bump upper bound to 4.
* repinfo.adb: Add with clause for GNAT.HTable.
(Relevant_Entities_Size): New constant.
(Entity_Header_Num): New type.
(Entity_Hash): New function.
(Relevant_Entities): New set implemented with GNAT.HTable.
(List_Entities): Also list compiled-generated entities present
in the Relevant_Entities set. Consider that the Component_Type
of an array type is relevant.
(List_Rep_Info): Reset Relevant_Entities for each unit.
* switch-c.adb (Scan_Front_End_Switches): Add support for -gnatR4.
* switch-m.adb (Normalize_Compiler_Switches): Likewise
* usage.adb (Usage): Likewise.
From-SVN: r266131
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