gcc.git
4 years ago[arm] Fix vfp_operand_register for VFP HI regs
Christophe Lyon [Mon, 8 Jun 2020 08:17:20 +0000 (08:17 +0000)]
[arm] Fix vfp_operand_register for VFP HI regs

While looking at PR target/94743 I noticed an ICE when I tried to save
all the FP registers: this was because all HI registers wouldn't match
vfp_register_operand.

gcc/ChangeLog:

* config/arm/predicates.md (vfp_register_operand): Use VFP_HI_REGS
instead of VFP_REGS.

4 years agors6000: Replace FAIL with gcc_unreachable
Martin Liska [Tue, 2 Jun 2020 13:29:37 +0000 (15:29 +0200)]
rs6000: Replace FAIL with gcc_unreachable

gcc/ChangeLog:

* config/rs6000/vector.md: Replace FAIL with gcc_unreachable
in all vcond* patterns.

4 years ago[arm] (header usage fix) include c++ algorithm header via system.h
Christophe Lyon [Mon, 8 Jun 2020 08:04:19 +0000 (08:04 +0000)]
[arm] (header usage fix) include c++ algorithm header via system.h

After the recent commit that forces uses of c++11, the arm part failed
to build because it does not include <algorithm> via system.h as
should be done.

This results in:
from /gcc/common/config/arm/arm-common.c:34:
/usr/lib/gcc/x86_64-linux-gnu/5/include/mm_malloc.h:42:12: error:
attempt to use poisoned "malloc"
     return malloc (size);

This patch fixes the problem by defining INCLUDE_ALGORITHM before
including system.h and no longer includes <algorithm> directly.

gcc/ChangeLog:

* common/config/arm/arm-common.c (INCLUDE_ALGORITHM):
Define. No longer include <algorithm>.

4 years ago[Ada] Implement AI12-0073 (Ravenscar disallows Synchronous_Barriers)
Steve Baird [Thu, 20 Feb 2020 23:35:51 +0000 (15:35 -0800)]
[Ada] Implement AI12-0073 (Ravenscar disallows Synchronous_Barriers)

2020-06-08  Steve Baird  <baird@adacore.com>

gcc/ada/

* sem_prag.adb (Analyze_Pragma.Set_Ravenscar_Profile): Add
appropriate call to Set_Restriction_No_Dependence if Ada_Version
>= Ada2012 and Profile is either Ravenscar or a GNAT-defined
Ravenscar variant (i.e., not Jorvik).

4 years ago[Ada] AI12-0204 Renaming of a prefixed view
Arnaud Charlet [Mon, 24 Feb 2020 10:41:00 +0000 (05:41 -0500)]
[Ada] AI12-0204 Renaming of a prefixed view

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_ch5.adb: Fix typo.
* sem_ch8.adb (Analyze_Renamed_Primitive_Operation): Check that
the prefix of a prefixed view must be renamable as an object.

4 years ago[Ada] AI12-0085 Missing aspect cases for Remote_Types
Arnaud Charlet [Fri, 21 Feb 2020 14:44:28 +0000 (09:44 -0500)]
[Ada] AI12-0085 Missing aspect cases for Remote_Types

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_cat.ads: Fix typo.
* sem_cat.adb (Validate_Remote_Access_To_Class_Wide_Type): Add
handling of N_Attribute_Definition_Clause.
* sem_ch13.adb (Analyze_Attribute_Definition_Clause): Call
Validate_Remote_Access_To_Class_Wide_Type for Storage_Size and
Storage_Pool.
* sem_attr.adb, exp_ch4.adb: Update comments.

4 years ago[Ada] Spurious error on call to controlled primitive
Justin Squirek [Fri, 21 Feb 2020 21:12:35 +0000 (16:12 -0500)]
[Ada] Spurious error on call to controlled primitive

2020-06-08  Justin Squirek  <squirek@adacore.com>

gcc/ada/

* sem_ch4.adb (Analyze_One_Call): Add extra condition to the
predicate for deciding when a given controlled call is visible.

4 years ago[Ada] Port a modified expansion of Enum_Rep from GNAT to GNATprove
Piotr Trojanek [Mon, 17 Feb 2020 17:00:41 +0000 (18:00 +0100)]
[Ada] Port a modified expansion of Enum_Rep from GNAT to GNATprove

2020-06-08  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Port
changes in frontend expander.

4 years ago[Ada] Style cleanups in new code for Pure_Barriers
Piotr Trojanek [Thu, 20 Feb 2020 11:10:53 +0000 (12:10 +0100)]
[Ada] Style cleanups in new code for Pure_Barriers

2020-06-08  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* sem_ch13.adb (All_Membership_Choices_Static): Fix style.

4 years ago[Ada] Implement AI12-0291 (Jorvik profile)
Steve Baird [Thu, 20 Feb 2020 00:27:47 +0000 (16:27 -0800)]
[Ada] Implement AI12-0291 (Jorvik profile)

2020-06-08  Steve Baird  <baird@adacore.com>

gcc/ada/

* libgnat/s-rident.ads: Add Jorvik to the Profile_Name
enumeration type.  Add an element for Jorvik to the array
aggregate that is the initial value of the constant
Profile_Info.
* targparm.adb (Get_Target_Parameters): Handle "pragma Profile
(Jorvik);" similarly to "pragma Profile (Ravenscar);".
* snames.ads-tmpl: Declare Name_Jorvik Name_Id. Unlike
Ravenscar, Jorvik is not a pragma name and has no corresponding
element in the Pragma_Id enumeration type; this means that its
declaration must not occur between those of First_Pragma_Name
and Last_Pragma_Name.
* sem_prag.adb (Analyze_Pragma): Add call to
Set_Ravenscar_Profile for Jorvik, similar to the existing calls
for Ravenscar and the GNAT Ravenscar variants.

4 years ago[Ada] AI12-0228 Properties of qualified expressions used as names
Arnaud Charlet [Mon, 17 Feb 2020 17:41:37 +0000 (12:41 -0500)]
[Ada] AI12-0228 Properties of qualified expressions used as names

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_ch8.adb (Analyze_Object_Renaming): Update Get_Object_Name
to go through N_Qualified_Expression and N_Type_Conversion.  Fix
another case of wrong usage of E_Anonymous_Access_Type instead
of Anonymous_Access_Kind.
* sem_util.adb (Is_Dependent_Component_Of_Mutable_Object): Work
on the original node.
(Is_Aliased_View): Take into account N_Qualified_Expression.

4 years ago[Ada] Fix handling of 'Enum_Rep and renamings
Arnaud Charlet [Fri, 14 Feb 2020 16:50:12 +0000 (11:50 -0500)]
[Ada] Fix handling of 'Enum_Rep and renamings

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_eval.adb (Eval_Type_Conversion): Fix handling of
enumeration to integer conversions.
* exp_attr.adb (Expand_N_Attribute_Reference
[Attribute_Enum_Rep]): Remove special casing for first-level
renaming, best left to the general folding mechanism via
Eval_Type_Conversion.

4 years ago[Ada] Remove the Has_Dynamic_Range_Check flag
Eric Botcazou [Sun, 9 Feb 2020 17:03:48 +0000 (18:03 +0100)]
[Ada] Remove the Has_Dynamic_Range_Check flag

2020-06-08  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* atree.adb (New_Copy): Do not clear Has_Dynamic_Range_Check.
* checks.ads (Append_Range_Checks): Remove Flag_Node parameter.
(Insert_Range_Checks): Likewise and remove default value of
Static_Loc parameter.
* checks.adb (Append_Range_Checks): Remove Flag_Node parameter.
Do not test and set Has_Dynamic_Range_Check.
(Insert_Range_Checks): Likewise and remove default value of
Static_Loc parameter.
* csinfo.adb (CSinfo): Remove 'L' from [NEUB]_Fields pattern and
do not handle Has_Dynamic_Range_Check.
* exp_ch5.adb (Expand_N_Assignment_Statement): Remove argument
in call to Insert_Range_Checks.
* sem_ch3.adb (Analyze_Subtype_Declaration): Do not fiddle
with Has_Dynamic_Range_Check.
(Process_Range_Expr_In_Decl): Remove argument in calls to
Insert_Range_Checks and Append_Range_Checks.
* sinfo.ads (Has_Dynamic_Range_Check): Delete.
(Set_Has_Dynamic_Range_Check): Likewise.
* sinfo.adb (Has_Dynamic_Range_Check): Delete.
(Set_Has_Dynamic_Range_Check): Likewise.
* treepr.adb (Print_Node): Do not print Has_Dynamic_Range_Check.

4 years ago[Ada] Implement AI12-0290 (Simple_Barriers restriction)
Steve Baird [Sat, 15 Feb 2020 00:24:47 +0000 (16:24 -0800)]
[Ada] Implement AI12-0290 (Simple_Barriers restriction)

2020-06-08  Steve Baird  <baird@adacore.com>

gcc/ada/

* sem_ch13.ads: Export new function
All_Membership_Choices_Static.
* sem_ch13.adb: Implement new function
All_Membership_Choices_Static.  This involves moving the
functions Is_Static_Choice and All_Membership_Choices_Static,
which were previously declared within the function
Is_Predicate_Static, out to library level so that they can be
called by the new function. The already-exisiting code in
Is_Predicate_Static which became the body of
All_Membership_Choices_Static is replaced with a call to the new
function in order to avoid duplication.
* exp_ch9.adb (Is_Pure_Barrier): Several changes needed to
implement rules of AI12-0290 and RM D.7's definition of
"pure-barrier-eligible". These changes include adding a call to
the new function Sem_13.All_Membership_Choices_Static, as per
the "see 4.9" in RM D.7(1.6/5).

4 years ago[Ada] Issue with unnesting of 'First/Last and renaming
Richard Kenner [Mon, 17 Feb 2020 23:17:58 +0000 (18:17 -0500)]
[Ada] Issue with unnesting of 'First/Last and renaming

2020-06-08  Richard Kenner  <kenner@adacore.com>

gcc/ada/

* exp_unst.adb (Visit_Node): When visiting array attribute
nodes, in addition to checking the type of Get_Referenced_Object
of the prefix, also check the actual type of the prefix.

4 years ago[Ada] Implement predicate checks on qualified expressions (AI12-0100)
Gary Dismukes [Mon, 17 Feb 2020 06:31:57 +0000 (01:31 -0500)]
[Ada] Implement predicate checks on qualified expressions (AI12-0100)

2020-06-08  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

* checks.adb (Apply_Predicate_Check): Refine test for being in a
subprogram body to account for no Corresponding_Body case,
avoiding blowups arising due to other changes here.
* exp_ch4.adb (Expand_N_Qualified_Expression): Apply predicate
checks, if any, after constraint checks are applied.
* sem_eval.ads (Check_Expression_Against_Static_Predicate): Add
Check_Failure_Is_Error formal for conditionalizing warning vs.
error messages.
* sem_eval.adb (Check_Expression_Against_Static_Predicate):
Issue an error message rather than a warning when the new
Check_Failure_Is_Error formal is True. In the nonstatic or
Dynamic_Predicate case where the predicate is known to fail,
emit the check to ensure that folded cases get checks applied.
* sem_res.adb (Resolve_Qualified_Expression): Call
Check_Expression_Against_Static_Predicate, passing True for
Check_Failure_Is_Error, to ensure we reject static predicate
violations. Remove code that was conditionally calling
Apply_Predicate_Check, which is no longer needed, and that check
procedure shouldn't be called from a resolution routine in any
case. Also remove associated comment about preventing infinite
recursion and consistency with Resolve_Type_Conversion, since
that handling was already similarly removed from
Resolve_Type_Convesion at some point.
(Resolve_Type_Conversion): Add passing of True for
Check_Failure_Is_Error parameter on call to
Check_Expression_Against_Static_Predicate, to ensure that static
conversion cases that violate a predicate are rejected as
errors.

4 years ago[Ada] Restore Snames.Name_SPARK as it used in the GNATprove backend
Piotr Trojanek [Mon, 17 Feb 2020 13:15:16 +0000 (14:15 +0100)]
[Ada] Restore Snames.Name_SPARK as it used in the GNATprove backend

2020-06-08  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* snames.ads-tmpl (Name_SPARK): Restore after being deleted.

4 years ago[Ada] Remove processing of SPARK_05 restriction
Arnaud Charlet [Mon, 10 Feb 2020 20:18:47 +0000 (15:18 -0500)]
[Ada] Remove processing of SPARK_05 restriction

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* exp_aggr.adb, exp_ch6.adb, par-ch11.adb, par-ch6.adb,
par-ch7.adb, par-prag.adb, restrict.adb, restrict.ads,
scans.ads, scng.adb, sem_aggr.adb, sem_attr.adb, sem_ch11.adb,
sem_ch12.adb, sem_ch3.adb, sem_ch3.ads, sem_ch4.adb,
sem_ch5.adb, sem_ch6.adb, sem_ch7.adb, sem_ch8.adb, sem_ch9.adb,
sem_res.adb, sem_util.adb, sem_util.ads, snames.ads-tmpl,
gnatbind.adb, libgnat/s-rident.ads,
doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Remove processing of SPARK_05 restriction.
* gnat_rm.texi: Regenerate.
* opt.ads: Remove processing of old checksum which is now
handled by gprbuild directly.

4 years ago[Ada] AI12-0287 Legality Rules for null exclusions in renaming are too fierce
Arnaud Charlet [Sun, 16 Feb 2020 12:16:45 +0000 (07:16 -0500)]
[Ada] AI12-0287 Legality Rules for null exclusions in renaming are too fierce

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_ch12.adb (Instantiate_Object): Relax rules related to null
exclusions and generic objects. Handle all anonymous types
consistently and not just E_Anonymous_Access_Type.
* sem_ch8.adb (Analyze_Object_Renaming): Change wording so that
it applies to both renamings and instantiations to avoid
confusion.

4 years ago[Ada] Ada.Text_IO: fix typo
Arnaud Charlet [Sat, 15 Feb 2020 17:37:13 +0000 (12:37 -0500)]
[Ada] Ada.Text_IO: fix typo

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* libgnat/a-textio.ads (File_Mode): Fix typo in comment.

4 years ago[Ada] Do not warn on partial access to atomic object with address clause
Eric Botcazou [Sat, 15 Feb 2020 15:48:15 +0000 (16:48 +0100)]
[Ada] Do not warn on partial access to atomic object with address clause

2020-06-08  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* sem_res.adb (Resolve_Indexed_Component): Do not give a warning
for a nonatomic component of an atomic array which is subject to
an address clause in Ada 2020 mode.
(Resolve_Selected_Component): Likewise for an atomic record.

4 years ago[Ada] Add gnatname use for multiple units files support
Philippe Gil [Mon, 3 Feb 2020 13:56:23 +0000 (14:56 +0100)]
[Ada] Add gnatname use for multiple units files support

2020-06-08  Philippe Gil  <gil@adacore.com>

gcc/ada/

* doc/gnat_ugn/the_gnat_compilation_model.rst: in "Handling
Files with Multiple Units" part documents gnatname use for
unmodified files handling and gnatchop use for files
refactoring.
* gnat_ugn.texi: Regenerate.

4 years ago[Ada] Update doc on Enum_Rep/Enum_Val
Arnaud Charlet [Fri, 14 Feb 2020 08:12:30 +0000 (03:12 -0500)]
[Ada] Update doc on Enum_Rep/Enum_Val

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* doc/gnat_rm/implementation_defined_attributes.rst:
Enum_Rep/Enum_Val are standard Ada 202x attributes.
* gnat_rm.texi: Regenerate.

4 years ago[Ada] Better code generation for nested aggregates
Javier Miranda [Mon, 10 Feb 2020 22:12:32 +0000 (17:12 -0500)]
[Ada] Better code generation for nested aggregates

2020-06-08  Javier Miranda  <miranda@adacore.com>

gcc/ada/

* exp_aggr.adb (Safe_Component): Remove code that considers as
unsafe components that are aggregates; such removal allows the
frontend to proceed and evaluate if they are safe by means of
invoking Safe_Aggregate.

4 years ago[Ada] Reuse standard expansion of 'First and 'Last in GNATprove mode
Piotr Trojanek [Wed, 12 Feb 2020 10:00:38 +0000 (11:00 +0100)]
[Ada] Reuse standard expansion of 'First and 'Last in GNATprove mode

2020-06-08  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Apply
standard expansion to attributes First and Last.

4 years ago[Ada] Reuse Get_Index_Subtype in the special expander for GNATprove
Piotr Trojanek [Tue, 11 Feb 2020 22:01:06 +0000 (23:01 +0100)]
[Ada] Reuse Get_Index_Subtype in the special expander for GNATprove

2020-06-08  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* exp_attr.adb, exp_util.ads, exp_util.adb (Get_Index_Subtype):
Move from the body of Exp_Attr to Exp_Util and expose from the
spec.
* exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Replace
duplicated code with a call to Get_Index_Subtype.

4 years ago[Ada] AI12-0226 Make objects more consistent
Arnaud Charlet [Sun, 9 Feb 2020 19:53:05 +0000 (14:53 -0500)]
[Ada] AI12-0226 Make objects more consistent

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_ch8.adb (Analyze_Object_Renaming): Simplify code by moving
many special cases to Is_Object_Reference and removing others by
only checking renamings coming from sources.
* sem_util.adb (Is_Object_Reference): Update for AI12-0226 and
add more regular handling of 'Priority. Remove special cases no
longer needed now that we are only checking renamings coming
from sources.

4 years ago[Ada] Silence spurious warning on instances of formal vectors
Claire Dross [Mon, 10 Feb 2020 13:51:30 +0000 (14:51 +0100)]
[Ada] Silence spurious warning on instances of formal vectors

2020-06-08  Claire Dross  <dross@adacore.com>

gcc/ada/

* libgnat/a-cofove.adb (Insert_Space): The computation of Index
generates a spurious compiler warning about a value not being in
range for a statically dead branch.  Silence it using pragma
Warnings.

4 years ago[Ada] gnatbind: Deterministic No_Entry_Calls_In_Elaboration_Code messages
Bob Duff [Tue, 11 Feb 2020 00:21:00 +0000 (19:21 -0500)]
[Ada] gnatbind: Deterministic No_Entry_Calls_In_Elaboration_Code messages

2020-06-08  Bob Duff  <duff@adacore.com>

gcc/ada/

* bindo-graphs.adb (function Add_Edge): Rename
Add_Edge_With_Return to Add_Edge; we can tell it returns because
it's a function, and overloading seems appropriate in this case.
If Activates_Task=True, and we're not going to add a new edge
because an existing Pred-->Succ edge already exists, then set
Activates_Task to True on the preexisting edge.  This ensures
that the message:

info: use pragma Restrictions (No_Entry_Calls_In_Elaboration_Code)

appears when appropriate, no matter in what order the edges
happened to be processed.
(procedure Add_Edge): Remove redundant assertions.
(Activates_Task): Other kinds of edges can have
Activates_Task=True.  For example, if we had a With_Edge and
then an Invocation_Edge with Activates_Task=True, then the
With_Edge has Activates_Task set to True.
(Add_Edge_Kind_Check): New procedure to prevent other bugs of
this nature. For example, if we were to sometimes call Add_Edge
for a Spec_Before_Body_Edge followed by Add_Edge for a
With_Edge, and sometimes in the other order, that would cause a
similar bug to what we're fixing here.
(Set_Is_Recorded_Edge): Val parameter is not used. Get rid of
it.
(Set_Activates_Task): New procedure to set the Activates_Task flag.
* bindo-graphs.ads (Library_Graph_Edge_Kind): Reorder the
enumeration literals to facilitate Add_Edge_Kind_Check.
* ali.adb (Known_ALI_Lines): The comment about "still available"
was wrong. Fix that by erasing the comment, and encoding the
relevant information in real code. Take advantage of Ada's full
coverage rules by removing "others =>".  Also DRY.

4 years ago[Ada] Ada_2020: shared variable control aspects on formal derived types
Ed Schonberg [Mon, 10 Feb 2020 00:30:05 +0000 (19:30 -0500)]
[Ada] Ada_2020: shared variable control aspects on formal derived types

2020-06-08  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* par-ch12.adb (P_Formal_Derived_Type_Definition): Handle
properly formal derived types that include aspect
specifications, so that the "with" keyword appears twice in the
formal type declaration.
* sem_ch13.adb (Has_Generic_Parent): Return true if the type
itself is a generic formal.

4 years ago[Ada] Fix socket timeout correction for Windows Server 2019 case
Dmitriy Anisimkov [Thu, 6 Feb 2020 10:25:06 +0000 (16:25 +0600)]
[Ada] Fix socket timeout correction for Windows Server 2019 case

2020-06-08  Dmitriy Anisimkov  <anisimko@adacore.com>

gcc/ada/

* socket.c (__gnat_minus_500ms): Remove
IsWindowsVersionOrGreater from condition.

4 years ago[Ada] Add Depends contracts to Delete procedures of formal containers
Claire Dross [Mon, 10 Feb 2020 11:30:40 +0000 (12:30 +0100)]
[Ada] Add Depends contracts to Delete procedures of formal containers

2020-06-08  Claire Dross  <dross@adacore.com>

gcc/ada/

* libgnat/a-cfdlli.ads, libgnat/a-cfhama.ads,
libgnat/a-cfhase.ads, libgnat/a-cforma.ads, libgnat/a-cforse.ads
(Delete): Add Depends contract.

4 years ago[Ada] AI12-0309 Missing checks for pragma Suppress
Arnaud Charlet [Fri, 31 Jan 2020 16:09:11 +0000 (11:09 -0500)]
[Ada] AI12-0309 Missing checks for pragma Suppress

2020-06-08  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* snames.ads-tmpl (Name_Program_Error_Check,
Name_Tasking_Check): New constants.
* types.ads (Program_Error_Check, Tasking_Check): New constants.
(All_Checks): Update accordingly.

4 years agoDaily bump.
GCC Administrator [Mon, 8 Jun 2020 00:16:23 +0000 (00:16 +0000)]
Daily bump.

4 years agod: Merge upstream dmd 73d8e2fec.
Iain Buclaw [Sun, 7 Jun 2020 19:58:49 +0000 (21:58 +0200)]
d: Merge upstream dmd 73d8e2fec.

Renames the enum PROTKIND to Prot::Kind, updates all uses of the
original enum accordingly.

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd 73d8e2fec.
* decl.cc (get_symbol_decl): Use new Prot::Kind enum.
* modules.cc (get_internal_fn): Likewise.

4 years agoi386: Improve expansion of __builtin_parity
Uros Bizjak [Sun, 7 Jun 2020 20:07:28 +0000 (22:07 +0200)]
i386: Improve expansion of __builtin_parity

GCC currently hides the shift and xor reduction inside a backend
specific UNSPEC PARITY, making it invisible to the RTL optimizers until
very late during compilation.  It is normally reasonable for the
middle-end to maintain wider mode representations for as long as possible
and split them later, but this only helps if the semantics are visible
at the RTL-level (to combine and other passes), but UNSPECs are black
boxes, so in this case splitting early (during RTL expansion) is a
better strategy.

It turns out that that popcount instruction on modern x86_64 processors
has (almost) made the integer parity flag in the x86 ALU completely
obsolete, especially as POPCOUNT's integer semantics are a much better
fit to RTL.  The one remaining case where these transistors are useful
is where __builtin_parity is immediately tested by a conditional branch,
and therefore the result is wanted in a flags register rather than as
an integer.  This case is captured by two peephole2 optimizations in
the attached patch.

2020-06-07  Roger Sayle  <roger@nextmovesoftware.com>

gcc/ChangeLog:

* config/i386/i386.md (paritydi2, paritysi2): Expand reduction
via shift and xor to an USPEC PARITY matching a parityhi2_cmp.
(paritydi2_cmp, paritysi2_cmp): Delete these define_insn_and_split.
(parityhi2, parityqi2): New expanders.
(parityhi2_cmp): Implement set parity flag with xorb insn.
(parityqi2_cmp): Implement set parity flag with testb insn.
New peephole2s to use these insns (UNSPEC PARITY) when appropriate.

gcc/testsuite/ChangeLog:

* gcc.target/i386/parity-3.c: New test.
* gcc.target/i386/parity-4.c: Likewise.
* gcc.target/i386/parity-5.c: Likewise.
* gcc.target/i386/parity-6.c: Likewise.
* gcc.target/i386/parity-7.c: Likewise.
* gcc.target/i386/parity-8.c: Likewise.
* gcc.target/i386/parity-9.c: Likewise.

4 years agod: Merge upstream dmd 108ca1bcd.
Iain Buclaw [Sun, 7 Jun 2020 17:42:58 +0000 (19:42 +0200)]
d: Merge upstream dmd 108ca1bcd.

Renames OutBuffer::peekString to OutBuffer::peekChars, and
OutBuffer::extractString to OutBuffer::extractChars.  All callers have
been updated as appropriate.

Reviewed-on: https://github.com/dlang/dmd/pull/11247

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd 108ca1bcd.
* d-diagnostic.cc (expand_d_format): Adjust to use extractChars().
* d-frontend.cc (Loc::toChars): Likewise.
* d-lang.cc (deps_write): Likewise.
(d_parse_file): Likewise.
* decl.cc (d_mangle_decl): Likewise.
* intrinsics.cc (maybe_set_intrinsic): Likewise.

4 years agod: Merge upstream dmd b0df0e982
Iain Buclaw [Sun, 7 Jun 2020 14:50:46 +0000 (16:50 +0200)]
d: Merge upstream dmd b0df0e982

Adds a struct ParameterList to encapulate parameter and vararg
information in the front-end.

Reviewed-on: https://github.com/dlang/dmd/pull/11226

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd b0df0e982.
* d-builtins.cc (build_frontend_type): Use VarArg for varargs_p.
* d-codegen.cc (declaration_type): Call TypeFunction::create with
argument VARARGnone.
(parameter_type): Likewise.
(d_build_call): Use new field names and member functions.
* d-target.cc (Target::cppParameterType): Call TypeFunction::create
with argument VARARGnone.
* types.cc (TypeVisitor::visit (TypeFunction *): Use new field names
and member functions.

4 years agoPR fortran/95091 - Buffer overflows with submodules and long symbols
Harald Anlauf [Sun, 7 Jun 2020 14:43:12 +0000 (16:43 +0200)]
PR fortran/95091 - Buffer overflows with submodules and long symbols

Add cast to fix bootstrap error with -Werror=sign-compare.

gcc/fortran/
PR fortran/95091
* class.c (gfc_hash_value): Add cast.

4 years agod: Merge upstream dmd 1831b24ff.
Iain Buclaw [Sun, 7 Jun 2020 14:37:25 +0000 (16:37 +0200)]
d: Merge upstream dmd 1831b24ff.

Converts some global and param fields from pointers to value types.

Reviewed-on: https://github.com/dlang/dmd/pull/11245

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd 1831b24ff.
* d-lang.cc (d_init_options): Remove initialization of updated fields.
(d_handle_option): Adjust for new field types.

4 years agoPR fortran/95091 - Buffer overflows with submodules and long symbols
Harald Anlauf [Sun, 7 Jun 2020 12:47:24 +0000 (14:47 +0200)]
PR fortran/95091 - Buffer overflows with submodules and long symbols

With submodules, name mangling results in long internal symbols.  This
requires adjustment of the sizes of temporaries to avoid buffer overflows.

2020-06-07  Harald Anlauf  <anlauf@gmx.de>

gcc/fortran/
PR fortran/95091
* class.c (get_unique_type_string, gfc_hash_value): Enlarge
buffers, and check whether the strings returned by
get_unique_type_string() fit.

4 years agod: Merge upstream dmd cef1e7991.
Iain Buclaw [Sun, 7 Jun 2020 09:26:32 +0000 (11:26 +0200)]
d: Merge upstream dmd cef1e7991.

Adds a DString type, a struct that has a compatible layout with D
strings.  Many parameters in the Global struct have been switched over
to this type, and users of these params have been adjust to use the
length or ptr field as appropriate.

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd cef1e7991.
* d-lang.cc (d_parse_file): Adjust for new field types.

4 years agors6000: allow cunroll to grow size according to -funroll-loop or -fpeel-loops
guojiufu [Thu, 28 May 2020 06:10:39 +0000 (14:10 +0800)]
rs6000: allow cunroll to grow size according to -funroll-loop or -fpeel-loops

Previously, flag_unroll_loops was turned on at -O2 implicitly.  This
also turned on cunroll with allowance size increasing, and cunroll
will unroll/peel the loop even the loop is complex like code in PR95018.
With this patch, size growth for cunroll is allowed only for if -funroll-loops
or -fpeel-loops or -O3 is specified explicitly.

gcc/ChangeLog
2020-06-07  Jiufu Guo  <guojiufu@linux.ibm.com>

PR target/95018
* config/rs6000/rs6000.c (rs6000_option_override_internal):
Override flag_cunroll_grow_size.

4 years agoIntroduce flag_cunroll_grow_size for cunroll
guojiufu [Thu, 28 May 2020 05:42:23 +0000 (13:42 +0800)]
Introduce flag_cunroll_grow_size for cunroll

Currently GIMPLE complete unroller(cunroll) is checking
flag_unroll_loops and flag_peel_loops to see if allow size growth.
Beside affects curnoll, flag_unroll_loops also controls RTL unroler.
To have more freedom to control cunroll and RTL unroller, this patch
introduces flag_cunroll_grow_size.  With this patch, we can control
cunroll and RTL unroller indepently.

gcc/ChangeLog
2020-06-07  Jiufu Guo  <guojiufu@linux.ibm.com>

* common.opt (flag_cunroll_grow_size): New flag.
* toplev.c (process_options): Set flag_cunroll_grow_size.
* tree-ssa-loop-ivcanon.c (pass_complete_unroll::execute):
Use flag_cunroll_grow_size.

4 years agoAdded test case for a PR which has been fixed in the meantime.
Thomas Koenig [Sun, 7 Jun 2020 08:43:54 +0000 (10:43 +0200)]
Added test case for a PR which has been fixed in the meantime.

gcc/testsuite/ChangeLog:

PR tree-optimization/50439
* gfortran.dg/loop_interchange_2.f: New test.

4 years agoDaily bump.
GCC Administrator [Sun, 7 Jun 2020 00:16:19 +0000 (00:16 +0000)]
Daily bump.

4 years agoFix ICE in ODR enum streaming [PR95548]
Jan Hubicka [Sat, 6 Jun 2020 20:19:46 +0000 (22:19 +0200)]
Fix ICE in ODR enum streaming [PR95548]

gcc/ChangeLog:

2020-06-06  Jan Hubicka  <hubicka@ucw.cz>

PR lto/95548
* ipa-devirt.c (struct odr_enum_val): Turn values to wide_int.
(ipa_odr_summary_write): Update streaming.
(ipa_odr_read_section): Update streaming.

gcc/testsuite/ChangeLog:

2020-06-06  Jan Hubicka  <hubicka@ucw.cz>

* g++.dg/torture/pr95548.C: New test.

4 years agoMAINTAINERS: Add myself as xtensa port maintainer
Max Filippov [Sat, 6 Jun 2020 08:26:56 +0000 (01:26 -0700)]
MAINTAINERS: Add myself as xtensa port maintainer

2020-06-06  Max Filippov  <jcmvbkbc@gmail.com>

* MAINTAINERS: Add myself as xtensa port maintainer.

4 years ago[PR95456] avoid memcpy (_, NULL, 0) in gcc.c
Alexandre Oliva [Sat, 6 Jun 2020 01:31:19 +0000 (22:31 -0300)]
[PR95456] avoid memcpy (_, NULL, 0) in gcc.c

Some newly-added code in gcc.c might call memcpy with a NULL source
pointer and zero-length inputs.  Avoid such calls by rearranging the
code a little.

for  gcc/ChangeLog

PR driver/95456
* gcc.c (do_spec_1): Don't call memcpy (_, NULL, 0).

4 years agoDaily bump.
GCC Administrator [Sat, 6 Jun 2020 00:16:29 +0000 (00:16 +0000)]
Daily bump.

4 years agod: Merge upstream dmd 740f3d1ea.
Iain Buclaw [Fri, 5 Jun 2020 21:09:23 +0000 (23:09 +0200)]
d: Merge upstream dmd 740f3d1ea.

Backports the conversion of the parameter fields debugids and versionids
to Identifiers.  The idea is that Identifiers should be used instead of
C strings where ever possible.

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd 740f3d1ea.
* d-lang.cc (d_handle_option): Use new fields to save debug and
version levels passed over command-line.
(d_post_options): Add them to front-end here.

4 years agoTemporarily remove an unintentionally commited test.
Martin Sebor [Fri, 5 Jun 2020 20:59:16 +0000 (14:59 -0600)]
Temporarily remove an unintentionally commited test.

gcc/testsuite/ChangeLog:
* g++.dg/warn/Wnonnull5.C: Temporarily remove.

4 years agoc++: Make braced-init-list as template arg work with aggr init [PR95369]
Marek Polacek [Fri, 5 Jun 2020 18:22:35 +0000 (14:22 -0400)]
c++: Make braced-init-list as template arg work with aggr init [PR95369]

Barry pointed out to me that our braced-init-list as a template-argument
extension doesn't work as expected when we aggregate-initialize.  Since
aggregate list-initialization is a user-defined conversion sequence, we
allow it as part of a converted constant expression.

Co-authored-by: Jason Merrill <jason@redhat.com>
gcc/cp/ChangeLog:

PR c++/95369
* call.c (build_converted_constant_expr_internal): Allow
list-initialization.

gcc/testsuite/ChangeLog:

PR c++/95369
* g++.dg/cpp2a/nontype-class38.C: New test.

4 years agoPR fortran/95530, PR fortran/95537 - Buffer overflows with long symbols
Harald Anlauf [Fri, 5 Jun 2020 18:30:34 +0000 (20:30 +0200)]
PR fortran/95530, PR fortran/95537 - Buffer overflows with long symbols

The testcases for PR95090 and PR95106 trigger buffer overflows with long
symbols that were found with an instrumented compiler.  Enlarge the
affected buffers, and add checks that the buffers will suffice.

2020-06-05  Harald Anlauf  <anlauf@gmx.de>

gcc/fortran/
PR fortran/95530
PR fortran/95537
* decl.c (gfc_match_decl_type_spec): Enlarge buffer, and enhance
string copy to detect buffer overflow.
* gfortran.h (gfc_common_head): Enlarge buffer.
* trans-common.c (finish_equivalences): Enhance string copy to
detect buffer overflow.

4 years agocoroutines: co_returns are statements, not expressions.
Iain Sandoe [Fri, 5 Jun 2020 14:09:39 +0000 (15:09 +0100)]
coroutines: co_returns are statements, not expressions.

This corrects an error in the CO_RETURN_EXPR tree
class.

gcc/cp/ChangeLog:

* cp-tree.def (CO_RETURN_EXPR): Correct the class
to use tcc_statement.

4 years agodiagnostics: Consistently add fixit hint for implicit builtin declaration
Mark Wielaard [Thu, 28 May 2020 00:55:36 +0000 (02:55 +0200)]
diagnostics: Consistently add fixit hint for implicit builtin declaration

There are two warnings that might trigger when a builtin function is
used but not declared yet. Both called through implicitly_declare in
c-decl. The first in implicit_decl_warning does warn for builtins,
but does not add a fixit hint for them (only for non-builtins when
a header is suggested through lookup_name_fuzzy). This warning is
guarded by -Wimplicit-function-declaration. The second warning, which
does include a fixit hint if possible, is given when the implicit
builtin declaration has an incompatible signature. This second warning
cannot be disabled.

This setup means that you only get a fixit-hint for usage of builtin
functions where the implicit signature is different than the actual
signature of the builtin. No fixit hints with header suggestions
are ever generated for builtins like abs, isdigit or putchar.

It seems more consistent to always generate a fixit-hint if possible
for the -Wimplicit-function-declaration warning. And for the second
warning to make it depend on -Wbuiltin-declaration-mismatch like
other warnings about builtin declaration mismatches.

Include a new test to show we get fixit-hints for abs, isdigit and
putchar now. Some small tweaks to existing tests to show the
effect of -Wno-builtin-declaration-mismatch with this change. And
a testcase to show that #pragma GCC diagnostic ignored now works.

gcc/c/ChangeLog:

* c-decl.c (implicit_decl_warning): When warned and olddecl is
an undeclared builtin, then add a fixit header hint, if found.
(implicitly_declare): Add OPT_Wbuiltin_declaration_mismatch to
warning_at about implicit builtin declaration type mismatch.

gcc/testsuite/ChangeLog:

* gcc.dg/missing-header-fixit-3.c: Add
-Wno-implicit-function-declaration.
* gcc.dg/missing-header-fixit-4.c: Add new expected output.
* gcc.dg/missing-header-fixit-5.c: New testcase.
* gcc.dg/Wbuiltin-declaration-mismatch-ignore.c: Likewise.

4 years agod: Merge upstream dmd f5638c7b8.
Iain Buclaw [Fri, 5 Jun 2020 17:27:29 +0000 (19:27 +0200)]
d: Merge upstream dmd f5638c7b8.

Adds a CHECKENABLE enum, uses it for all contract parameters for
consistency in state checking.

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd f5638c7b8.
* d-builtins.cc (d_init_versions): Use new CHECKENABLE enum.
* d-codegen.cc (array_bounds_check): Likewise.
(build_frame_type): Likewise.
(get_frameinfo): Likewise.
* d-lang.cc (d_init_options): Likewise.
(d_init_options_struct): Don't initialize x_flag_bounds_check.
(d_handle_option): Use new CHECKENABLE enum.
(d_post_options): Likewise.  Set flag_bounds_check here.
* expr.cc (ExprVisitor::visit(AssertExp *)): Use new CHECKENABLE enum.

4 years agoc++: Fix pretty-print of pointer minus integer.
Jason Merrill [Thu, 4 Jun 2020 19:56:57 +0000 (15:56 -0400)]
c++: Fix pretty-print of pointer minus integer.

For whatever reason, GCC internally represents a pointer minus an integer as
a pointer plus a very large unsigned integer.  But exposing that to users is
unsightly, and it's easy enough to show the real value.

gcc/cp/ChangeLog:

* error.c (dump_binary_op): Handle negative operand to
POINTER_PLUS_EXPR.

gcc/c-family/ChangeLog:

* c-pretty-print.c (pp_c_additive_expression): Handle negative
operand to POINTER_PLUS_EXPR.

gcc/testsuite/ChangeLog:

* g++.dg/cpp0x/constexpr-ptrsub2.C: New test.

4 years agofortran/95509 - fix spellcheck-operator.f90 regression
Tom Tromey [Fri, 5 Jun 2020 12:40:14 +0000 (06:40 -0600)]
fortran/95509 - fix spellcheck-operator.f90 regression

My earlier patch to add case handling to the spell checker caused a
Fortran regression.  I believe I must have misread the test results.

This patch fixes the problem by changing the cutoff.  I chose this
value because the previous patch effectively multiplied the result of
get_edit_distance by 2 (unless a case change is involved).

gcc/fortran/ChangeLog:

PR fortran/95509
* misc.c (gfc_closest_fuzzy_match): Update cutoff value
computation.

4 years ago[OpenACC 'exit data'] Strip 'GOMP_MAP_STRUCT' mappings
Thomas Schwinge [Wed, 20 May 2020 08:56:55 +0000 (10:56 +0200)]
[OpenACC 'exit data'] Strip 'GOMP_MAP_STRUCT' mappings

These are not itself necessary for OpenACC 'exit data' directives, and are
skipped over (now) in libgomp.  We might as well not emit them to start with,
in line with the equivalent OpenMP directive.  We keep the no-op handling in
libgomp for the reason of backward compatibility.

gcc/
* gimplify.c (gimplify_adjust_omp_clauses): Remove
'GOMP_MAP_STRUCT' mapping from OpenACC 'exit data' directives.
gcc/testsuite/
* c-c++-common/goacc/struct-enter-exit-data-1.c: New file.
libgomp/
* oacc-mem.c (goacc_exit_data_internal) <GOMP_MAP_STRUCT>: Explain
special handling.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
4 years ago[OpenACC 'exit data'] Simplify 'GOMP_MAP_STRUCT' handling
Thomas Schwinge [Wed, 20 May 2020 08:53:33 +0000 (10:53 +0200)]
[OpenACC 'exit data'] Simplify 'GOMP_MAP_STRUCT' handling

libgomp/
* oacc-mem.c (goacc_exit_data_internal) <GOMP_MAP_STRUCT>:
Simplify.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
4 years agoAdd 'libgomp.oacc-c-c++-common/struct-copyout-{1,2}.c'
Julian Brown [Thu, 4 Jun 2020 13:40:53 +0000 (06:40 -0700)]
Add 'libgomp.oacc-c-c++-common/struct-copyout-{1,2}.c'

libgomp/
* testsuite/libgomp.oacc-c-c++-common/struct-copyout-1.c: New test.
* testsuite/libgomp.oacc-c-c++-common/struct-copyout-2.c: New test.

Reviewed-by: Thomas Schwinge <thomas@codesourcery.com>
4 years agod: Merge upstream dmd 56f0a65c4.
Iain Buclaw [Fri, 5 Jun 2020 15:50:49 +0000 (17:50 +0200)]
d: Merge upstream dmd 56f0a65c4.

Updates the Target interface, removing static from all members, so all
field accesses and member function calls go through a single global
'target'.  Information relating to extern ABI are now in TargetC,
TargetCPP, and TargetObjC for each supported language respectively.

Reviewed-on: https://github.com/dlang/dmd/pull/11228

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd 56f0a65c4.
* d-builtins.cc (build_frontend_type): Remove static.
(d_build_builtins_module): Use target.va_listType() to get front-end
type for va_list.
(d_init_builtins): Move creation of va_list to Target::va_listType.
* d-codegen.cc (build_interface_binfo): Use new target global.
(build_vindex_ref): Likewise.
(identity_compare_p): Likewise.
* d-ctfloat.cc (CTFloat::parse): Likewise.
* d-lang.cc (d_init): Likewise.
* d-port.cc (Port::isFloat32LiteralOutOfRange): Likewise.
(Port::isFloat64LiteralOutOfRange): Likewise.
* d-target.cc (define_float_constants): Initialize constants through a
reference, instead of setting globals.
(Target::_init): Initialize new fields instead of setting globals.
(Target::va_listType): Build front-end type from va_list_type_node.
(Target::toCppMangle): Renamed to ...
(TargetCPP::toMangle): ... this.
(Target::cppTypeInfoMangle): Renamed to ...
(TargetCPP::typeInfoMangle): ... this.
(Target::cppTypeMangle): Renamed to ...
(TargetCPP::typeMangle): this.
(Target::cppParameterType): Renamed to ...
(TargetCPP::parameterType): ... this.  Use target.va_listType() to get
front-end type for va_list.
(Target::cppFundamentalType): Renamed to ...
(TargetCPP::fundamentalType): ... this.
* d-tree.h (build_frontend_type): Declare.
* decl.cc (base_vtable_offset): Use new target global.
* typeinfo.cc (layout_classinfo_interfaces): Likewise.
(layout_cpp_typeinfo): Likewise.
* types.cc (valist_array_p): Use target.va_listType() to get front-end
type for va_list.
(layout_aggregate_type): Use new target global.

4 years agoAdjust text of expected warnings to g:b825a22890740f341eae566af27e18e528cd29a7.
Martin Sebor [Fri, 5 Jun 2020 15:34:39 +0000 (09:34 -0600)]
Adjust text of expected warnings to g:b825a22890740f341eae566af27e18e528cd29a7.

gcc/testsuite/ChangeLog:
* c-c++-common/goacc/uninit-use-device-clause.c: Adjust.
* c-c++-common/pr59223.c: Same.
* g++.dg/warn/Wnonnull5.C: Same.
* gcc.dg/pr59924.c: Same.
* gcc.dg/ubsan/pr81981.c: Same.
* gcc.dg/ubsan/pr89284.c: Same.
* gfortran.dg/goacc/uninit-use-device-clause.f95: Same.

4 years ago[Ada] Replace ? by ?? in Error_Msg_N
Arnaud Charlet [Sun, 9 Feb 2020 19:52:12 +0000 (14:52 -0500)]
[Ada] Replace ? by ?? in Error_Msg_N

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_prag.adb (Validate_Compile_Time_Warning_Or_Error): Use ??.

4 years ago[Ada] Update comments wrt Ada 83 handling
Arnaud Charlet [Sun, 9 Feb 2020 19:50:50 +0000 (14:50 -0500)]
[Ada] Update comments wrt Ada 83 handling

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* cstand.adb (Create_Standard): Update comments.

4 years ago[Ada] Support 'Reduce under -gnatX
Arnaud Charlet [Mon, 3 Feb 2020 10:22:57 +0000 (05:22 -0500)]
[Ada] Support 'Reduce under -gnatX

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* scng.adb (Scan): Fix typo to take into account all future
versions of Ada.
* sem_attr.ads (Attribute_Impl_Def): Add Attribute_Reduce for
now.
* sem_attr.adb (Analyze_Attribute): Only allow 'Reduce under
-gnatX.
* snames.ads-tmpl (Name_Reduce): Update comment.

4 years ago[Ada] Add note about gnatcov reliance on thunk names
Thomas Quinot [Thu, 6 Feb 2020 18:03:24 +0000 (19:03 +0100)]
[Ada] Add note about gnatcov reliance on thunk names

2020-06-05  Thomas Quinot  <quinot@adacore.com>

gcc/ada/

* exp_disp.adb (Expand_Interface_Thunk): Add comment about
gnatcov reliance on specific name used for thunks.

4 years ago[Ada] Subtype inherits Atomic flag from base type
Ed Schonberg [Wed, 5 Feb 2020 16:38:38 +0000 (11:38 -0500)]
[Ada] Subtype inherits Atomic flag from base type

2020-06-05  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch3.adb (Analyze_Subtype_Declaration): For scalar types,
and for subtype declarations without a constraint, subtype
inherits Atomic flag from base type.

4 years ago[Ada] Fix punctuation in description of Enum_Rep attribute
Piotr Trojanek [Thu, 6 Feb 2020 10:12:45 +0000 (11:12 +0100)]
[Ada] Fix punctuation in description of Enum_Rep attribute

2020-06-05  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* doc/gnat_rm/implementation_defined_attributes.rst (Enum_Rep):
Remove extra colon.
* gnat_rm.texi: Regenerate.

4 years ago[Ada] Make the Has_Dynamic_Range_Check flag obsolete
Eric Botcazou [Wed, 5 Feb 2020 17:02:03 +0000 (18:02 +0100)]
[Ada] Make the Has_Dynamic_Range_Check flag obsolete

2020-06-05  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* atree.adb (New_Copy): Clear Has_Dynamic_Range_Check on
subexpression nodes.
* checks.adb (Append_Range_Checks): Assert that the node
doesn't have the Has_Dynamic_Range_Check flag set.
(Insert_Range_Checks): Likewise.
* exp_ch3.adb (Expand_N_Subtype_Indication): Do not apply
range checks for a full type or object declaration.
* sem_ch3.ads: Move with and use clauses for Nlists to...
(Process_Range_Expr_In_Decl): Change default to No_List for
the Check_List parameter.
* sem_ch3.adb: ...here.
(Process_Range_Expr_In_Decl): Likewise.  When the insertion
node is a declaration, only insert on the list if is present
when the declaration involves discriminants, and only insert
on the node when there is no list otherwise.

4 years ago[Ada] Do not create an empty list of nodes that confuses GNATprove
Piotr Trojanek [Wed, 5 Feb 2020 16:22:17 +0000 (17:22 +0100)]
[Ada] Do not create an empty list of nodes that confuses GNATprove

2020-06-05  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* sem_aggr.adb (Resolve_Record_Aggregate): Create the
N_Aggregate node with its Expressions field set to No_List and
not to an empty list.

4 years ago[Ada] Optimize Normalize_Pathname
Dmitriy Anisimkov [Thu, 23 Jan 2020 09:05:58 +0000 (15:05 +0600)]
[Ada] Optimize Normalize_Pathname

2020-06-05  Dmitriy Anisimkov  <anisimko@adacore.com>

gcc/ada/

* libgnat/s-os_lib.adb (Is_Dirsep): Moved from Build_Path to
package level to reuse.
(Normalize_Pathname.Final_Value): Reduce 2 'if' statements to
one.
(Normalize_Pathname.Fill_Directory): New procedure instead of
function Get_Directory. Remove slash to backslash conversion and
drive letter uppercasing on Windows.

4 years ago[Ada] Spurious assert failure in Walk_Library_Items
Arnaud Charlet [Sun, 2 Feb 2020 18:42:50 +0000 (19:42 +0100)]
[Ada] Spurious assert failure in Walk_Library_Items

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem.adb (Assert_Done): Relax check for main unit, as it was
overzealous in the case of the main unit itself.

4 years ago[Ada] Use Is_Incomplete_Type instead of a low-level Ekind test
Piotr Trojanek [Thu, 16 Jan 2020 17:56:38 +0000 (18:56 +0100)]
[Ada] Use Is_Incomplete_Type instead of a low-level Ekind test

2020-06-05  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* exp_ch3.adb, sem_ch8.adb, sem_util.adb: Use Is_Incomplete_Type
to make the code easier to read.

4 years ago[Ada] Simplify iteration over components
Piotr Trojanek [Thu, 16 Jan 2020 17:50:05 +0000 (18:50 +0100)]
[Ada] Simplify iteration over components

2020-06-05  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* einfo.adb: Minor reformatting.
* sem_util.adb (Has_Full_Default_Initialization,
Is_Partially_Initialized_Type, Caller_Known_Size_Record,
Large_Max_Size_Mutable): Iterate with
First_Component/Next_Component; rename Ent to Comp.

4 years ago[Ada] Fix incorrect initialization for array of non-standard enumeration type
Eric Botcazou [Tue, 4 Feb 2020 23:13:00 +0000 (00:13 +0100)]
[Ada] Fix incorrect initialization for array of non-standard enumeration type

2020-06-05  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* exp_aggr.adb (Aggr_Assignment_OK_For_Backend): Use
Expr_Rep_Value instead of Expr_Value to obtain the equivalent
integer value.
* sem_eval.ads (Expr_Value): Document more supported cases.
* sem_eval.adb (Expr_Rep_Value): Copy missing cases from
Exp_Value.

4 years ago[Ada] Put_Image attribute: Rtsfind cleanups
Bob Duff [Tue, 4 Feb 2020 16:08:32 +0000 (11:08 -0500)]
[Ada] Put_Image attribute: Rtsfind cleanups

2020-06-05  Bob Duff  <duff@adacore.com>

gcc/ada/

* rtsfind.adb, rtsfind.ads: Move subtypes of RTU_Id into package
body, because they are not needed by clients. Change "Child_" to
"Descendant", because grandchildren and great grandchildren are
involved.  Replace all the repetitive comments with a single
concise one.  Change the parent subtypes to be more consistent;
use the most specific parent.

4 years ago[Ada] Move routine for detecting special Text_IO packages from GNATprove
Piotr Trojanek [Mon, 3 Feb 2020 16:44:41 +0000 (17:44 +0100)]
[Ada] Move routine for detecting special Text_IO packages from GNATprove

2020-06-05  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* rtsfind.ads, rtsfind.adb (Is_Text_IO_Special_Package): Moved
from the GNATprove backend to the frontend.

4 years ago[Ada] Add comment about function only used in CodePeer
Yannick Moy [Mon, 3 Feb 2020 15:30:34 +0000 (16:30 +0100)]
[Ada] Add comment about function only used in CodePeer

2020-06-05  Yannick Moy  <moy@adacore.com>

gcc/ada/

* sem_util.ads: Add comment about function only used in
CodePeer.

4 years ago[Ada] Spurious error on address clause in task body
Ed Schonberg [Fri, 31 Jan 2020 17:28:21 +0000 (12:28 -0500)]
[Ada] Spurious error on address clause in task body

2020-06-05  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch9.adb, (Analyze_Task_Body): After analying the task
body, indicate that all local variables have no delayed aspects.
This prevents improper later calls to
Check_Aspect_At_End_Of_Declarations, that would happen when the
constructed task_procedure body (generated during expansion) is
analyzed. The legality of aspect specifications that may appear
on local declarations has already been established, and it is in
general not possible to recheck them properly during expansion,
when visibility may not be fully established.

4 years ago[Ada] Add missing Global contract to Ada.Containers.Functional_Vectors
Piotr Trojanek [Fri, 31 Jan 2020 20:13:31 +0000 (21:13 +0100)]
[Ada] Add missing Global contract to Ada.Containers.Functional_Vectors

2020-06-05  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* libgnat/a-cofuve.ads (First): Add Global contract.

4 years ago[Ada] AI12-0207 Convention of anonymous access types
Arnaud Charlet [Fri, 31 Jan 2020 20:53:42 +0000 (15:53 -0500)]
[Ada] AI12-0207 Convention of anonymous access types

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_prag.adb (Set_Convention_From_Pragma): Set the convention
of anonymous access array components.

4 years ago[Ada] AI12-0336 Meaning of Time_Offset
Arnaud Charlet [Fri, 31 Jan 2020 14:18:37 +0000 (09:18 -0500)]
[Ada] AI12-0336 Meaning of Time_Offset

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* libgnat/a-calfor.ads, libgnat/a-catizo.ads,
libgnat/a-catizo.adb (Local_Time_Offset, Local_Image): New.
(UTC_Time_Offset): Now a renaming of Local_Time_Offset.

4 years ago[Ada] Fix assertion failure on double rederivation of private type
Eric Botcazou [Fri, 31 Jan 2020 10:56:30 +0000 (11:56 +0100)]
[Ada] Fix assertion failure on double rederivation of private type

2020-06-05  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* sem_ch3.adb (Available_Full_View): New function returning
either the full or the underlying full view.
(Build_Full_Derivation): Add guard for the full view.
(Copy_And_Build): Retrieve the underlying full view, if any,
also if deriving a completion.
(Build_Derived_Private_Type): Use Available_Full_View throughout
to decide whether a full derivation must be done.

4 years ago[Ada] Put_Image attribute
Bob Duff [Fri, 31 Jan 2020 13:28:45 +0000 (08:28 -0500)]
[Ada] Put_Image attribute

2020-06-05  Bob Duff  <duff@adacore.com>

gcc/ada/

* exp_attr.adb, exp_ch11.adb, exp_imgv.adb, exp_tss.ads,
par-ch4.adb, sem_attr.adb, sem_util.ads: Misc cleanup.

4 years ago[Ada] AI12-0144 Make Discrete_Random more flexible
Arnaud Charlet [Fri, 31 Jan 2020 10:47:01 +0000 (05:47 -0500)]
[Ada] AI12-0144 Make Discrete_Random more flexible

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* libgnat/a-nudira.ads, libgnat/a-nudira.adb (Random): New
function.

4 years ago[Ada] AI12-0237 Getting the representation of an enumeration value
Arnaud Charlet [Fri, 31 Jan 2020 12:52:25 +0000 (07:52 -0500)]
[Ada] AI12-0237 Getting the representation of an enumeration value

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_attr.ads (Attribute_Impl_Def): Remove Enum_Rep/Val.
* sem_attr.adb (Attribute_20): New, move Enum_Rep/Val here.
(Analyze_Attribute): Take Attribute_20 into account.

4 years ago[Ada] AI12-0318 No_IO should apply to Ada.Directories
Arnaud Charlet [Fri, 31 Jan 2020 11:22:26 +0000 (06:22 -0500)]
[Ada] AI12-0318 No_IO should apply to Ada.Directories

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* restrict.ads (Unit_Array): Add a-direct.

4 years ago[Ada] AI12-0235 System.Storage_Pools should be pure
Arnaud Charlet [Fri, 31 Jan 2020 11:05:01 +0000 (06:05 -0500)]
[Ada] AI12-0235 System.Storage_Pools should be pure

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* libgnat/s-stopoo.ads: Mark package Pure and leave room for
Nonblocking once this aspect is supported.

4 years ago[Ada] Add No_Truncation flag on view conversion for GNAT-LLVM
Eric Botcazou [Thu, 30 Jan 2020 20:48:27 +0000 (21:48 +0100)]
[Ada] Add No_Truncation flag on view conversion for GNAT-LLVM

2020-06-05  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* exp_attr.adb (Expand_N_Attribute_Reference) <Valid_Scalars>:
Set the No_Truncation flag on the unchecked conversion built for
scalar types.

4 years ago[Ada] Assertion_Policy (Ignore) ignores invariants
Bob Duff [Thu, 30 Jan 2020 19:45:19 +0000 (14:45 -0500)]
[Ada] Assertion_Policy (Ignore) ignores invariants

2020-06-05  Bob Duff  <duff@adacore.com>

gcc/ada/

* einfo.adb, einfo.ads, exp_util.adb: Remove Invariants_Ignored
flag.
* sem_prag.adb (Invariant): Instead of setting a flag to be
checked elsewhere, remove the pragma as soon as it is analyzed
and checked for legality.

4 years ago[Ada] Rename parameter of routines in Checks
Eric Botcazou [Thu, 30 Jan 2020 12:23:31 +0000 (13:23 +0100)]
[Ada] Rename parameter of routines in Checks

2020-06-05  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* checks.ads (Apply_Length_Check): Rename Ck_Node parameter to
Expr.
(Apply_Range_Check): Likewise.
(Get_Range_Checks): Likewise.
* checks.adb (Apply_Float_Conversion_Check): Likewise.
(Apply_Selected_Length_Checks): Likewise.
(Apply_Selected_Range_Checks): Likewise.
(Guard_Access): Likewise.
(Selected_Length_Checks): Likewise.  Also avoid shadowing in
child procedures.
(Selected_Range_Checks): Likewise.

4 years ago[Ada] Minor wording changes wrt Ada 202x
Arnaud Charlet [Thu, 30 Jan 2020 08:09:19 +0000 (03:09 -0500)]
[Ada] Minor wording changes wrt Ada 202x

2020-06-05  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* par-ch3.adb, par-ch4.adb, scng.adb, sem_aggr.adb,
sem_ch10.adb, sem_ch12.adb, sem_prag.adb: Update wording: change
Ada_2020 to Ada 2020 in comments and mention -gnat2020 instead
of -gnatX switch.

4 years agod: Merge upstream dmd 6d5bffa54
Iain Buclaw [Fri, 5 Jun 2020 09:37:47 +0000 (11:37 +0200)]
d: Merge upstream dmd 6d5bffa54

Removes an unused parameter from Condition::include(), all callers have
been updated in the front-end.

Reviewed-on: https://github.com/dlang/dmd/pull/11229

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd 6d5bffa54.
* d-builtins.cc (maybe_set_builtin_1): Update call to
Condition::include().
* decl.cc (DeclVisitor::visit(AttribDeclaration *)): Likewise.
* types.cc (layout_aggregate_members): Likewise.

4 years agotree-optimization/95539 - fix SLP_TREE_REPRESENTATIVE vs. dr_info
Richard Biener [Fri, 5 Jun 2020 08:13:27 +0000 (10:13 +0200)]
tree-optimization/95539 - fix SLP_TREE_REPRESENTATIVE vs. dr_info

This fixes a disconnect between the stmt_info used for dr_info
analysis and the one in SLP_TREE_REPRESENTATIVE with a temporary
workaround.

2020-06-05  Richard Biener  <rguenther@suse.de>

PR tree-optimization/95539
* tree-vect-data-refs.c
(vect_slp_analyze_and_verify_instance_alignment): Use
SLP_TREE_REPRESENTATIVE for the data-ref check.
* tree-vect-stmts.c (vectorizable_load): Reset stmt_info
back to the first scalar stmt rather than the
SLP_TREE_REPRESENTATIVE to match previous behavior.

* gcc.dg/vect/pr95539.c: New testcase.

4 years agoexpand: Simplify removing subregs when expanding a copy [PR95254]
Fei Yang [Fri, 5 Jun 2020 09:34:59 +0000 (10:34 +0100)]
expand: Simplify removing subregs when expanding a copy [PR95254]

In rtl expand, if we have a copy that matches one of the following patterns:
  (set (subreg:M1 (reg:M2 ...)) (subreg:M1 (reg:M2 ...)))
  (set (subreg:M1 (reg:M2 ...)) (mem:M1 ADDR))
  (set (mem:M1 ADDR) (subreg:M1 (reg:M2 ...)))
  (set (subreg:M1 (reg:M2 ...)) (constant C))
where mode M1 is equal in size to M2, try to detect whether the mode change
involves an implicit round trip through memory.  If so, see if we can avoid
that by removing the subregs and doing the move in mode M2 instead.

2020-06-05  Felix Yang  <felix.yang@huawei.com>

gcc/
PR target/95254
* expr.c (emit_move_insn): Check src and dest of the copy to see
if one or both of them are subregs, try to remove the subregs when
innermode and outermode are equal in size and the mode change involves
an implicit round trip through memory.

gcc/testsuite/
PR target/95254
* gcc.target/aarch64/pr95254.c: New test.
* gcc.target/i386/pr67609.c: Check "movq\t%xmm0" instead of "movdqa".

4 years agoix86: Improve __builtin_c[lt]z followed by extension [PR95535]
Jakub Jelinek [Fri, 5 Jun 2020 08:44:23 +0000 (10:44 +0200)]
ix86: Improve __builtin_c[lt]z followed by extension [PR95535]

In January I've added patterns to optimize SImode -> DImode sign or zero
extension of __builtin_popcount, this patch does the same for
__builtin_c[lt]z.  Like most other instructions, the [tl]zcntl instructions
clear the upper 32 bits of the destination register and as the instructions
only result in values 0 to 32 inclusive, both sign and zero extensions
behave the same.

2020-06-05  Jakub Jelinek  <jakub@redhat.com>

PR target/95535
* config/i386/i386.md (*ctzsi2_zext, *clzsi2_lzcnt_zext): New
define_insn_and_split patterns.
(*ctzsi2_zext_falsedep, *clzsi2_lzcnt_zext_falsedep): New
define_insn patterns.

* gcc.target/i386/pr95535-1.c: New test.
* gcc.target/i386/pr95535-2.c: New test.

4 years agoAdd new/delete to struct occurence
Jonathan Wakely [Fri, 22 May 2020 06:22:50 +0000 (07:22 +0100)]
Add new/delete to struct occurence

This adds an example how to use new/delete operators to pool
allocated objects.

2020-06-04  Jonathan Wakely  <jwakely@redhat.com>

* alloc-pool.h (object_allocator::remove_raw): New.
* tree-ssa-math-opts.c (struct occurrence): Use NSMDI.
(occurrence::occurrence): Add.
(occurrence::~occurrence): Likewise.
(occurrence::new): Likewise.
(occurrence::delete): Likewise.
(occ_new): Remove.
(insert_bb): Use new occurence (...) instead of occ_new.
(register_division_in): Likewise.
(free_bb): Use delete occ instead of manually removing
from the pool.

4 years agomiddle-end/95493 - bogus MEM_ATTRS for variable array access
Richard Biener [Thu, 4 Jun 2020 11:44:58 +0000 (13:44 +0200)]
middle-end/95493 - bogus MEM_ATTRS for variable array access

The following patch avoids keeping the inherited MEM_ATTRS when
set_mem_attributes_minus_bitpos is called with a variable ARRAY_REF.
The inherited ones may not reflect the correct offset and neither
does the updated alias-set match the inherited MEM_EXPR.  This all
ends up confusing path-based alias-analysis, causing wrong-code.

The fix is to stop not adopting a MEM_EXPR for certain kinds of
expressions and instead handle everything we can.  There's still
the constant kind trees case which I'm too lazy to look into right
now.  I did refrain from adding SSA_NAME there and instead avoided
calling set_mem_attributes_minus_bitpos when debug expression
expansion ended up expanding a SSA definition RHS which should
already have taken care of setting the appropriate MEM_ATTRS.

2020-06-04  Richard Biener  <rguenther@suse.de>

PR middle-end/95493
* cfgexpand.c (expand_debug_expr): Avoid calling
set_mem_attributes_minus_bitpos when we were expanding
an SSA name.
* emit-rtl.c (set_mem_attributes_minus_bitpos): Remove
ARRAY_REF special-casing, add CONSTRUCTOR to the set of
special-cases we do not want MEM_EXPRs for.  Assert
we end up with reasonable MEM_EXPRs.

* g++.dg/torture/pr95493.C: New testcase.