[multiple changes]

2015-11-18  Nicolas Roche  <roche@adacore.com>

	* sysdep.c (__gnat_localtime_tzoff): On Windows platform
	GetTimeZoneInformation function is thread-safe. Thus there
	is no need to lock the runtime in the implementation of
	__gnat_localtime_tzoff on that platform.

2015-11-18  Eric Botcazou  <ebotcazou@adacore.com>

	* s-arit64.adb (To_Neg_Int): Add a special case for 2**63 input.

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* contracts.adb (Analyze_Contracts): New routine.
	(Analyze_Enclosing_Package_Body_Contract): Removed.
	(Analyze_Entry_Or_Subprogram_Contract): Add formal parameter
	Freeze_Id.  Propagate the entity of the freezing body to vaious
	analysis routines.
	(Analyze_Initial_Declaration_Contract): Removed.
	(Analyze_Object_Contract): Add formal parameter
	Freeze_Id. Propagate the entity of the freezing body to vaious
	analysis routines.
	(Analyze_Previous_Contracts): New routine.
	* contracts.ads (Analyze_Enclosing_Package_Body_Contract): Removed.
	(Analyze_Contracts): New routine.
	(Analyze_Entry_Or_Subprogram_Contract): Add formal
	parameter Freeze_Id and update the comment on usage.
	(Analyze_Initial_Declaration_Contract): Removed.
	(Analyze_Object_Contract): Add formal parameter Freeze_Id and
	update the comment on usage.
	(Analyze_Previous_Contracts): New routine.
	* sem_ch3.adb (Analyze_Declarations): Use Analyze_Contracts to
	analyze all contracts of eligible constructs.
	* sem_ch6.adb (Analyze_Generic_Subprogram_Body):
	A body no longer freezes the contract of its initial
	declaration. This effect is achieved through different means.
	(Analyze_Subprogram_Body_Helper): A body now freezes the contracts
	of all eligible constructs that precede it. A body no longer
	freezes the contract of its initial declaration. This effect is
	achieved through different means.
	* sem_ch7.adb (Analyze_Package_Body_Helper): A body now freezes
	the contracts of all eligible constructs that precede it. A body
	no longer freezes the contract of its initial declaration. This
	effect is achieved through different means.
	* sem_ch9.adb (Analyze_Entry_Body): A body now freezes
	the contracts of all eligible constructs that precede
	it. A body no longer freezes the contract of its initial
	declaration. This effect is achieved through different means.
	(Analyze_Protected_Body): A body now freezes the contracts
	of all eligible constructs that precede it. A body no longer
	freezes the contract of its initial declaration. This effect
	is achieved through different means.
	(Analyze_Task_Body): A
	body now freezes the contracts of all eligible constructs that
	precede it. A body no longer freezes the contract of its initial
	declaration. This effect is achieved through different means.
	* sem_prag.adb (Add_Item_To_Name_Buffer): Single protected/task
	objects now output their respective current instance of xxx
	type messages.	(Analyze_Contract_Cases_In_Decl_Part): Add
	formal parameter Freeze_Id. Emit a clarification message
	when an undefined entity may the byproduct of contract
	freezing.
	(Analyze_Part_Of_In_Decl_Part): Add formal
	parameter Freeze_Id. Emit a clarification message when an
	undefined entity may the byproduct of contract freezing.
	(Analyze_Pre_Post_Condition_In_Decl_Part): Add formal
	parameter Freeze_Id. Emit a clarification message when an
	undefined entity may the byproduct of contract freezing.
	(Analyze_Refined_State_In_Decl_Part): Do not report unused body
	states as constituents of single protected/task types may not
	bave been identified yet.
	(Collect_Subprogram_Inputs_Outputs):
	Reimplemented.	(Contract_Freeze_Error): New routine.
	(Process_Overloadable): Use predicate Is_Single_Task_Object.
	* sem_prag.ads (Analyze_Contract_Cases_In_Decl_Part):
	Add formal parameter Freeze_Id and update the comment
	on usage.
	(Analyze_Part_Of_In_Decl_Part): Add formal
	parameter Freeze_Id and update the comment on usage.
	(Analyze_Pre_Post_Condition_In_Decl_Part): Add formal parameter
	Freeze_Id and update the comment on usage.
	* sem_util.adb (Check_Unused_Body_States): Remove global
	variable Legal_Constits. The routine now reports unused
	body states regardless of whether constituents are
	legal or not.
	(Collect_Body_States): A constituent of a
	single protected/task type is not a visible state of a
	package body.
	(Collect_Visible_States): A constituent
	of a single protected/task type is not a visible
	state of a package body.
	(Has_Undefined_Reference): New routine.
	(Is_Single_Concurrent_Object): Reimplemented.
	(Is_Single_Protected_Object): New routine.
	(Is_Single_Task_Object): New routine.
	(Is_Visible_Object): New routine.
	(Report_Unused_Body_States): Moved to Check_Unused_Body_States.
	* sem_util.ads (Check_Unused_Body_States): Update the comment on usage.
	(Has_Undefined_Reference): New routine.
	(Is_Single_Protected_Object): New routine.
	(Is_Single_Task_Object): New routine.
	(Report_Unused_Body_States): Moved to Check_Unused_Body_States.

2015-11-18  Pierre-Marie de Rodat  <derodat@adacore.com>

	* Makefile.rtl, impunit.adb: Add g-strhas.ads.
	* g-strhas.ads: New file.
	* s-strhas.ads: Add a comment to redirect users to g-strhas.ads.

2015-11-18  Bob Duff  <duff@adacore.com>

	* sem_elab.adb (Check_Internal_Call_Continue): Fix the case
	where the call in question is to a renaming of a subprogram that
	can be safely called without ABE.
	* checks.adb: Minor edits.

From-SVN: r230546

1 files changed, 19 insertions, 9 deletions

diff --git a/gcc/ada/contracts.ads b/gcc/ada/contracts.ads
index ee231fc..1059fc6 100644
--- a/gcc/ada/contracts.ads
+++ b/gcc/ada/contracts.ads
@@ -59,9 +59,8 @@ package Contracts is
    --    Test_Case
    --    Volatile_Function
 
-   procedure Analyze_Enclosing_Package_Body_Contract (Body_Decl : Node_Id);
-   --  Analyze the contract of the nearest package body (if any) which encloses
-   --  package or subprogram body Body_Decl.
+   procedure Analyze_Contracts (L : List_Id);
+   --  Analyze the contracts of all eligible constructs found in list L
 
    procedure Analyze_Entry_Or_Subprogram_Body_Contract (Body_Id : Entity_Id);
    --  Analyze all delayed pragmas chained on the contract of entry or
@@ -77,7 +76,9 @@ package Contracts is
    --    Refined_Post
    --    Test_Case        (stand alone subprogram body)
 
-   procedure Analyze_Entry_Or_Subprogram_Contract (Subp_Id : Entity_Id);
+   procedure Analyze_Entry_Or_Subprogram_Contract
+     (Subp_Id   : Entity_Id;
+      Freeze_Id : Entity_Id := Empty);
    --  Analyze all delayed pragmas chained on the contract of entry or
    --  subprogram Subp_Id as if they appeared at the end of a declarative
    --  region. The pragmas in question are:
@@ -87,12 +88,13 @@ package Contracts is
    --    Postcondition
    --    Precondition
    --    Test_Case
+   --
+   --  Freeze_Id is the entity of a [generic] package body or a [generic]
+   --  subprogram body which "freezes" the contract of Subp_Id.
 
-   procedure Analyze_Initial_Declaration_Contract (Body_Decl : Node_Id);
-   --  Analyze the contract of the initial declaration of entry body, package
-   --  body, protected body, subprogram body or task body Body_Decl.
-
-   procedure Analyze_Object_Contract (Obj_Id : Entity_Id);
+   procedure Analyze_Object_Contract
+     (Obj_Id    : Entity_Id;
+      Freeze_Id : Entity_Id := Empty);
    --  Analyze all delayed pragmas chained on the contract of object Obj_Id as
    --  if they appeared at the end of the declarative region. The pragmas to be
    --  considered are:
@@ -103,6 +105,9 @@ package Contracts is
    --    Effective_Writes
    --    Global            (single concurrent object)
    --    Part_Of
+   --
+   --  Freeze_Id is the entity of a [generic] package body or a [generic]
+   --  subprogram body which "freezes" the contract of Obj_Id.
 
    procedure Analyze_Package_Body_Contract
      (Body_Id   : Entity_Id;
@@ -123,6 +128,11 @@ package Contracts is
    --    Initializes
    --    Part_Of
 
+   procedure Analyze_Previous_Contracts (Body_Decl : Node_Id);
+   --  Analyze the contracts of all source constructs found in the declarative
+   --  list which contains entry, package, protected, subprogram, or task body
+   --  denoted by Body_Decl. The analysis stops once Body_Decl is reached.
+
    procedure Analyze_Protected_Contract (Prot_Id : Entity_Id);
    --  Analyze all delayed pragmas chained on the contract of protected unit
    --  Prot_Id if they appeared at the end of a declarative region. Currently