2014-11-20 Andrew Stubbs <ams@codesourcery.com>
gcc/
* tree-ssa-loop-niter.c (maybe_lower_iteration_bound): Warn if a loop
condition would be removed due to undefined behaviour.
gcc/testsuite/
* gcc.dg/undefined-loop-1.c: New file.
* gcc.dg/undefined-loop-2.c: New file.
From-SVN: r217891
Running the testsuite after bootstrap-ubsan on gcc112 shows several issues. See
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426 for the full list.
This patch fixes several of them.
2014-11-20 Markus Trippelsdorf <markus@trippelsdorf.de>
* config/rs6000/constraints.md: Avoid signed integer overflows.
* config/rs6000/predicates.md: Likewise.
* config/rs6000/rs6000.c (num_insns_constant_wide): Likewise.
(includes_rldic_lshift_p): Likewise.
(includes_rldicr_lshift_p): Likewise.
* emit-rtl.c (const_wide_int_htab_hash): Likewise.
* loop-iv.c (determine_max_iter): Likewise.
(iv_number_of_iterations): Likewise.
* tree-ssa-loop-ivopts.c (get_computation_cost_at): Likewise.
* varasm.c (get_section_anchor): Likewise.
From-SVN: r217886
2014-11-20 Thomas Quinot <quinot@adacore.com>
* freeze.adb (Freeze_Entity): Do not reset Is_True_Constant
for aliased constant objects.
2014-11-20 Robert Dewar <dewar@adacore.com>
* exp_util.adb (Following_Address_Clause): Use new Name_Table
boolean flag set by parser to avoid the search if there is no
address clause anywhere for the name.
* namet.adb (Name_Enter): Initialize Boolean_Info flag
(Name_Find): ditto (Reinitialize): ditto (Get_Name_Table_Boolean):
New function (Set_Name_Table_Boolean): New procedure
* namet.ads: Add and document new Boolean field in name table
(Get_Name_Table_Boolean): New function.
(Set_Name_Table_Boolean): New procedure.
* par-ch13.adb (P_Representation_Clause): Set Name_Table boolean
flag for an identifier name if we detect an address clause or
use-at clause for the identifier.
* sem_ch3.adb (Analyze_Object_Declaration): Remove comment about
Following_Address_Clause since this function is now optimized
and is not a performance concern.
* sem_prag.adb (Analyze_Pragma, case Elaborate): In SPARK
mode, pragma Elaborate is now allowed, but does not suppress
elaboration checking.
From-SVN: r217882
2014-11-20 Thomas Quinot <quinot@adacore.com>
* sem_ch13.adb, freeze.adb: Minor reformatting.
* gnat_rm.texi: Minor editing.
2014-11-20 Robert Dewar <dewar@adacore.com>
* sem_prag.adb (Analyze_Pragma): Minor reformatting.
(Process_Suppress_Unsuppress): Ignore suppress Elaboration_Check
in SPARK.
2014-11-20 Bob Duff <duff@adacore.com>
* gnat_rm.texi: Correction to documentation of
'Unrestricted_Access in case of access to unconstrained array.
* a-cofove.adb (Capacity): Fix bug -- was always
returning Capacity_Range'Last.
(Is_Sorted): Fix bug -- was always returning True, because
Container.Last = Last. That test isn't even needed, because the
loop will go around zero times in that case, so deleted that
test rather than fixing it.
(Reverse_Elements): Make sure to use the correct array bounds.
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* sem_ch12.adb (Analyze_Associations): In GNATProve mode, build
wrappers for functions and operators that are actuals only if
expander is enabled. Wrappers play no role within a generic unit.
2014-11-20 Hristian Kirtchev <kirtchev@adacore.com>
* sem_util.adb (Policy_In_Effect): Use the
configuration level assertion flag.
From-SVN: r217880
2014-11-20 Arnaud Charlet <charlet@adacore.com>
* s-parame-ae653.ads: Update comments.
2014-11-20 Robert Dewar <dewar@adacore.com>
* types.ads, einfo.ads: Minor reformatting.
* sem_elab.adb (Check_A_Call): Add guard for reference to Alias
for variable case.
2014-11-20 Bob Duff <duff@adacore.com>
* a-cofove.adb (Elems,Elemsc): Use access-to-constrained arrays
instead of access-to-unconstrained, because the latter doesn't
work with 'Unrestricted_Access when the result is returned from
a function.
* a-cofove.ads (Vector): Move the discriminant-dependent array
after the other components for efficiency. Otherwise the compiler
will generate a lot of code to calculate the offset of the other
components every time they're accessed.
2014-11-20 Olivier Hainque <hainque@adacore.com>
* opt.ads: Fix comment on Generate_SCO_Instance_Table wrt when
it is set to true.
From-SVN: r217879
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* exp_ch3.adb (Expand_N_Object_Declaration): Handle properly
a type invariant check on an object with default initialization
and an address clause.
2014-11-20 Robert Dewar <dewar@adacore.com>
* sem_elab.adb (Check_A_Call): Handle variable ref case in
SPARK (Check_Elab_Call): ditto (Find_Elab_Reference): ditto
(Get_Referenced_Ent): ditto.
* sem_elab.ads: Comment fixes to account for the fact that we
now deal with variable references in SPARK mode.
* sem_res.adb (Resolve_Entity_Name): In SPARK_Mode Call
Check_Elab_Call for variable.
2014-11-20 Yannick Moy <moy@adacore.com>
* a-cofove.ads (Copy): Fix precondition, which should allow
Capacity = 0.
(First_To_Previous, Current_To_Last): Add necessary preconditions.
From-SVN: r217878
2014-11-20 Hristian Kirtchev <kirtchev@adacore.com>
* exp_ch3.adb (Build_Initialization_Call): Reimplement the
circuitry which extraacts the [underlying] full view of a
private type to handle a case where the private type acts as a
generic actual.
* exp_ch5.adb (Expand_Iterator_Loop_Over_Array): Inherit the
loop label form the original loop regardless of whether it came
from source.
* sem_attr.adb (Analyze_Attribute): When taking 'Access of an
expression function with a generated body that has not been
analyzed yet, analyze the body to freeze the expression.
* sem_util.adb (Set_Public_Status_Of): New routine.
(Transfer_Entities): Handle the case where a private type with
an internally generated full view is being transfered and update
its full view.
2014-11-20 Vincent Celier <celier@adacore.com>
* prj-nmsc.adb (Check_Object): If a unit is in a multi-source
file, its object file is never the same as any other unit.
2014-11-20 Bob Duff <duff@adacore.com>
* s-taskin.adb (Initialize_ATCB): Take into
account the fact that the domain of the activator can be null
if we're initializing a foreign task.
From-SVN: r217877
2014-11-20 Robert Dewar <dewar@adacore.com>
* s-tassta.adb, exp_aggr.adb, s-taskin.adb, exp_strm.adb: Minor
reformatting.
* comperr.adb (Compiler_Abort): New wording for bug box.
* par-ch13.adb: Minor reformatting.
* par-ch3.adb (P_Identifier_Declarations): Handle aspect
specifications given before initialization expression in object
declaration cleanly.
* gnat1drv.adb (Adjust_Global_Switches): Make sure static
elaboration mode is set if we are operating in SPARK mode.
* sem_ch12.adb (Analyze_Package_Instantiation): Make
sure static elab mode is set if we are in SPARK mode.
(Analyze_Subprogram_Instantiation): ditto.
(Set_Instance_Env): ditto.
* sem_elab.adb (Check_A_Call): In SPARK mode, we require
Elaborate_All in the case of a call during elaboration to a
subprogram in another unit.
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* inline.adb (Can_Split_Unconstrained_Function,
Build_Procedure): Copy parameter type rather than creating
reference to the entity, to capture class-wide reference, whose
name is not retrieved by visibility.
From-SVN: r217874
2014-11-20 Arnaud Charlet <charlet@adacore.com>
* s-taspri-solaris.ads: Replace 64 by long_long_integer'size.
2014-11-20 Olivier Hainque <hainque@adacore.com>
* init.c (__gnat_map_signal for VxWorks): Use a common mapping
scheme for VxWorks version >= 6, instead of falling back to the
vx5 scheme for versions > 6.
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* exp_strm.adb (Build_Mutable_Record_Read_Procedure): Use
base type when constructing subtype indication for constrained
target object.
2014-11-20 Jose Ruiz <ruiz@adacore.com>
* projects.texi: Minor spelling fix.
2014-11-20 Bob Duff <duff@adacore.com>
* gnat_ugn.texi: Add doc for --split-line-before-op switch in gnatpp.
2014-11-20 Vincent Celier <celier@adacore.com>
* prj-attr.adb (Register_New_Package): Allow the registration
of an already unknown package and make it known.
From-SVN: r217873
gcc/ChangeLog:
2014-11-20 Trevor Saunders <tsaunders@mozilla.com>
* doc/gty.texi: Document the new cache gty attribute.
* gengtype.c (finish_cache_funcs): New function.
(write_roots): Call gt_clear_cache on global variables with the cache
gty attribute.
* ggc-common.c (ggc_mark_roots): Call gt_clear_caches.
* ggc.h (gt_clear_caches): New declaration.
* hash-table.h (struct ggc_cache_hasher): New hasher for caches in gc
memory.
(gt_cleare_cache): New function.
* emit-rtl.c, rtl.h, tree.c: Use hash_table instead of htab.
From-SVN: r217866
2014-11-20 Robert Dewar <dewar@adacore.com>
* sem_prag.adb (Analyze_Pragma, case Elaborate): Forbid pragma
Elaborate in SPARK mode.
2014-11-20 Bob Duff <duff@adacore.com>
* s-taskin.adb, s-tassta.adb (Initialize_ATCB): If Domain
is null, then initialize T.Common.Domain to that of the
activating task (not the parent task!), as required by RM-D.16.1.
T.Common.Domain should never be null; so Assert. Remove similar
code from Create_Task in s-tassta.adb.
* s-mudido-affinity.adb: Remove checks for Domain = null,
because it can't be null.
* s-taskin.ads, s-taspri-dummy.ads, s-taspri-mingw.ads,
s-taspri-posix.ads, s-taspri-posix-noaltstack.ads,
s-taspri-solaris.ads, s-taspri-vxworks.ads: Mark limited types as
explicitly limited for clarity.
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* exp_aggr.adb (Init_Hidden_Discriminants): Code clean up.
From-SVN: r217863
2014-11-20 Thomas Quinot <quinot@adacore.com>
* g-socket.adb (To_Host_Entry): Guard against case of a
non-AF_INET entry.
2014-11-20 Vadim Godunko <godunko@adacore.com>
* a-strunb-shared.adb (To_Unbounded_String): Use shared empty
object to construct return value when source string is empty or
requested length is zero.
* a-stwiun-shared.adb (To_Unbounded_Wide_String): Likewise.
* a-stzunb-shared.adb (To_Unbounded_Wide_Wide_String): Likewise.
2014-11-20 Yannick Moy <moy@adacore.com>
* a-cfhase.adb, a-cfinve.adb, a-cforma.adb, a-cfhama.adb, a-cforse.adb,
a-cofove.adb: Skip CodePeer analysis on body of all formal containers.
2014-11-20 Arnaud Charlet <charlet@adacore.com>
* adaint.c: Fix typo.
* exp_util.adb (Make_Subtype_From_Expr): Complete previous change,
generate constant values.
* sem_eval.adb (Decompose_Expr): Fix latent bug leading to a wrong
evaluation to '0' of some unknown values.
2014-11-20 Robert Dewar <dewar@adacore.com>
* repinfo.adb (List_Record_Info): Do not list discriminant in
unchecked union.
* sem_ch13.adb (Has_Good_Profile): Minor reformatting
(Analyze_Stream_TSS_Definition): Minor reformatting
(Analyze_Record_Representation_Clause): Do not issue warning
for missing rep clause for discriminant in unchecked union.
From-SVN: r217861
* a-strunb-shared.adb, a-stwiun-shared.adb, a-stzunb-shared.adb
("&") Use already computed value of data length to call allocation
subprogram.
From-SVN: r217860
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* exp_ch6.adb (Expand_Call, Inlined_Subprogram): Do not suppress
debugging information for a call to a predefined unit, if the
call comes from source and the unit is in the Ada hierarchy.
2014-11-20 Bob Duff <duff@adacore.com>
* s-mudido.ads: Update signature of Create and Get_Last_CPU. Add
CPU_Set, another Create, and Get_CPU_Set.
* s-mudido.adb: Corresponding changes to the spec. New
operations just raise an exception. Also minor cleanup: use
raise_expressions.
* s-mudido-affinity.adb: Implementations of new operations from
* s-mudido.ads, for the platforms that actually support processor
affinity. The new Create (which takes a set) now does all the
work; the old Create (which takes a range) now just calls the
new one. Change error messages to reflect the fact that it's an
arbitrary set, not just a range.
From-SVN: r217859
2014-11-20 Robert Dewar <dewar@adacore.com>
* exp_attr.adb: Minor reformatting.
2014-11-20 Hristian Kirtchev <kirtchev@adacore.com>
* exp_util.adb (Make_Subtype_From_Expr): Capture the bounds of
all index constracts when the expression is of an array type.
2014-11-20 Bob Duff <duff@adacore.com>
* s-taskin.ads: Minor comment improvements.
2014-11-20 Bob Duff <duff@adacore.com>
* exp_ch9.adb: Minor comment fixes.
* s-taskin.adb (Initialize): Small simplification: pass System_Domain
to Initialize_ATCB instead of passing null and then setting the Domain
to System_Domain. This requires moving the creation of System_Domain
earlier.
* s-taprop-linux.adb (Set_Task_Affinity): Only call CPU_SET for
processors that have a True in the Domain. This is necessary if the
Domain is not all-True values.
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* sem_ch13.adb (Has_Good_Profile): a) An stream attribute
for the class-wide type of an interface type is not a primitive
operation and is not subject to the restrictions of 13.13. (38/3).
b) A stream operation for an interface type must be a null
procedure, and it cannot be a function.
From-SVN: r217857
2014-11-20 Bob Duff <duff@adacore.com>
* exp_attr.adb (Attribute_Max_Size_In_Storage_Elements):
Eliminate 'Class references from the tree, because gigi crashes on
'Class. Also, don't check Nkind (Attr) -- it is known to be
N_Attribute_Reference. Assert that instead.
From-SVN: r217856
2014-11-20 Bob Duff <duff@adacore.com>
* debug.adb: Minor comment fix.
2014-11-20 Arnaud Charlet <charlet@adacore.com>
* a-ciorma.adb: Minor update: move pragma Annotate up.
* a-cfdlli.adb: Skip codepeer analysis on this body.
2014-11-20 Robert Dewar <dewar@adacore.com>
* sem_prag.adb (Analyze_Pragma, case No_Elaboration_Code_All):
Allow use of this pragma with generic unit (package or subprogram).
* gnat_rm.texi: Clarify that pragma No_Elaboration_Code_All can
be applied to generics.
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* sem_aggr.adb (Valid_Limited_Ancestor): Ancestor part of
extension aggregate can itself be an extension aggregate, as
well as a call that is rewritten as a reference.
2014-11-20 Eric Botcazou <ebotcazou@adacore.com>
* inline.adb (Add_Inlined_Subprogram): Insert all programs
generated as a body or whose declaration was provided along with
the body.
2014-11-20 Javier Miranda <miranda@adacore.com>
* sem.adb (Semantics): Disable expansion if we are compiling a
separate unit under configurable runtime. By default separate
units are compiled with expansion disabled but under configurable
runtime we enable the expansion to get error messages about
missing entities.
From-SVN: r217855
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Do not apply
inlining expansion if function build in place, i.e. has a limited
return type.
2014-11-20 Hristian Kirtchev <kirtchev@adacore.com>
* sem_prag.adb (Analyze_Refined_Depends_In_Decl_Part): Add
variables Body_Id, Body_Inputs, Body_Outputs, Spec_Inputs,
Spec_Outputs. Synthesize the inputs and outputs of the subprogram
when pragma [Refined_]Global is missing and perform legality
checks on output states with visible refinement.
(Appears_In): Update the comment on usage.
(Check_Output_States): New routine.
(Collect_Dependency_Clause): New routine.
(Collect_Global_Items): Relocated to
Analyze_Refined_Global_In_Decl_Part.
(Collect_Subprogram_Inputs_Outputs): Add new formal parameters
Synthesize and Depends_Seen. The routine can now synthesize inputs
and outputs from pragma [Refined_]Depends.
(Normalize_Clause): Update the comment on usage. The routine no longer
performs normalization of outputs.
(Normalize_Clauses): Normalize both inputs and outputs.
(Normalize_Output): Relocated to Normalize_Clauses.
* sem_prag.ads (Collect_Subprogram_Inputs_Outputs): Add new
formal parameters Synthesize and Depends_Seen and update the
comment on usage.
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* sem_ch13.adb (Reset_Loop_Variable): New subsidiary procedure
in Build_Predicate_Functions, to handle properly quantified
expressions in dynamic predicates.
From-SVN: r217850
2014-11-20 Robert Dewar <dewar@adacore.com>
* gnatcmd.adb, sem_ch6.adb, exp_dist.adb: Minor reformatting.
* sem_util.adb (Bad_Unordered_Enumeration_Reference): Suppress
warning (return False) for generic type.
2014-11-20 Hristian Kirtchev <kirtchev@adacore.com>
* sem_res.adb (Appears_In_Check): Removed.
(Is_OK_Volatile_Context): Rewrite the checks which verify that
an effectively volatile object subject to enabled properties
Async_Writers or Effective_Reads appears in a suitable context to
properly recognize a procedure call.
(Within_Check): New routine.
(Within_Procedure_Call): New routine.
From-SVN: r217848
2014-11-20 Thomas Quinot <quinot@adacore.com>
* freeze.adb, sem_ch13.adb: Minor editing.
2014-11-20 Vincent Celier <celier@adacore.com>
* gnatcmd.adb: Remove any special processing for the ASIS tools
(gnatpp, gnatmetric, gnatcheck, gnatelim and gnatstup) and simply
invoke the tool with the provided switches and arguments.
2014-11-20 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Analyze_Expression_Function): Reject declaration
of expression function with identical profile as previous
expression function.
From-SVN: r217846
2014-11-20 Robert Dewar <dewar@adacore.com>
* freeze.adb, exp_dbug.adb, sem_ch13.adb: Minor reformatting.
2014-11-20 Thomas Quinot <quinot@adacore.com>
* einfo.ads: Fix minor typo in comment.
From-SVN: r217844
2014-11-20 Robert Dewar <dewar@adacore.com>
* inline.adb, sem_util.adb: Minor reformatting.
2014-11-20 Pierre-Marie Derodat <derodat@adacore.com>
* uintp.h (UI_Eq): Declare.
* urealp.h (Norm_Den): Declare.
(Norm_Num): Declare.
* exp_dbug.adb (Is_Handled_Scale_Factor): New.
(Get_Encoded_Name): Do not output ___XF GNAT encodings
for fixed-point types when these can be handled by GCC's DWARF
back-end.
2014-11-20 Thomas Quinot <quinot@adacore.com>
* sem_ch13.db (Inherit_Aspects_At_Freeze_Point): Inherit parent
SSO even if set through a pragma Default_Scalar_Storage_Order.
* freeze.adb (Set_SSO_From_Default): For a type extension,
do not let the default SSO override the parent SSO.
* gnat_rm.texi: document the above
From-SVN: r217842
