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Commit af31bd57 by Arnaud Charlet
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[multiple changes] 

2012-12-05  Robert Dewar  <dewar@adacore.com>

	* atree.ads, par-ch4.adb, sem_attr.adb, sem_ch13.adb: Minor
	reformatting.

2012-12-05  Eric Botcazou  <ebotcazou@adacore.com>

	* gnat_ugn.texi (Switches for gcc): Document -flto and reorder.

2012-12-05  Ed Schonberg  <schonberg@adacore.com>

	* par-ch5.adb (P_Condition): Handle properly Ada 2012
	expressions that must be parenthesized before checking for
	redundant parentheses when that check is enabled.

From-SVN: r194210
parent 7b55fea6
Showing with 134 additions and 76 deletions
gcc/ada/ChangeLog
2012-12-05 Robert Dewar <dewar@adacore.com>
* atree.ads, par-ch4.adb, sem_attr.adb, sem_ch13.adb: Minor
reformatting.
2012-12-05 Eric Botcazou <ebotcazou@adacore.com>
* gnat_ugn.texi (Switches for gcc): Document -flto and reorder.
2012-12-05 Ed Schonberg <schonberg@adacore.com>
* par-ch5.adb (P_Condition): Handle properly Ada 2012
expressions that must be parenthesized before checking for
redundant parentheses when that check is enabled.
2012-12-05 Ed Schonberg <schonberg@adacore.com>
* par-ch4.adb (P_Allocator): In Ada 2012 (AI05-0104) an
......
gcc/ada/atree.ads
......@@ -105,6 +105,11 @@ package Atree is
-- is used to indicate the real value. Set to zero for
-- non-subexpression nodes.
-- Note: the required parentheses surrounding conditional
-- and quantified expressions count as a level of parens
-- for this purposes, so e.g. in X := (if A then B else C);
-- Paren_Count for the right side will be 1.
-- Comes_From_Source
-- This flag is present in all nodes. It is set if the
-- node is built by the scanner or parser, and clear if
......@@ -305,7 +310,7 @@ package Atree is
Configurable_Run_Time_Violations : Nat := 0;
-- Count of configurable run time violations so far. This is used to
-- suppress certain cascaded error messages when we know that we may not
-- have fully expanded some items, due to high integrity violations (i.e.
-- have fully expanded some items, due to high integrity violations (e.g.
-- the use of constructs not permitted by the library in use, or improper
-- constructs in No_Run_Time mode).
......
gcc/ada/gnat_ugn.texi
......@@ -4004,6 +4004,41 @@ cannot use this approach, because the binder must be run
and @command{gcc} cannot be used to run the GNAT binder.
@end ifclear
@item -fcallgraph-info@r{[}=su,da@r{]}
@cindex @option{-fcallgraph-info} (@command{gcc})
Makes the compiler output callgraph information for the program, on a
per-file basis. The information is generated in the VCG format. It can
be decorated with additional, per-node and/or per-edge information, if a
list of comma-separated markers is additionally specified. When the
@var{su} marker is specified, the callgraph is decorated with stack usage information; it is equivalent to @option{-fstack-usage}. When the @var{da}
marker is specified, the callgraph is decorated with information about
dynamically allocated objects.
@item -fdump-scos
@cindex @option{-fdump-scos} (@command{gcc})
Generates SCO (Source Coverage Obligation) information in the ALI file.
This information is used by advanced coverage tools. See unit @file{SCOs}
in the compiler sources for details in files @file{scos.ads} and
@file{scos.adb}.
@item -flto@r{[}=n@r{]}
@cindex @option{-flto} (@command{gcc})
Enables Link Time Optimization. This switch must be used in conjunction
with the traditional @option{-Ox} switches and instructs the compiler to
defer most optimizations until the link stage. The advantage of this
approach is that the compiler can do a whole-program analysis and choose
the best interprocedural optimization strategy based on a complete view
of the program, instead of a fragmentary view with the usual approach.
This can also speed up the compilation of huge programs and reduce the
size of the final executable, compared with a per-unit compilation with
full inlining across modules enabled with the @option{-gnatn2} switch.
The drawback of this approach is that it may require much more memory.
The switch, as well as the accompanying @option{-Ox} switches, must be
specified both for the compilation and the link phases.
If the @var{n} parameter is specified, the optimization and final code
generation at link time are executed using @var{n} parallel jobs by
means of an installed @command{make} program.
@item -fno-inline
@cindex @option{-fno-inline} (@command{gcc})
Suppresses all inlining, even if other optimization or inlining
......@@ -4053,19 +4088,6 @@ See @ref{Stack Overflow Checking} for details.
Makes the compiler output stack usage information for the program, on a
per-subprogram basis. See @ref{Static Stack Usage Analysis} for details.
@item -fcallgraph-info@r{[}=su@r{]}
@cindex @option{-fcallgraph-info} (@command{gcc})
Makes the compiler output callgraph information for the program, on a
per-file basis. The information is generated in the VCG format. It can
be decorated with stack-usage per-node information.
@item -fdump-scos
@cindex @option{-fdump-scos} (@command{gcc})
Generate SCO (Source Coverage Obligation) information in the ALI file.
This information is used by advanced coverage tools. See unit @file{SCOs}
in the compiler sources for details in files @file{scos.ads} and
@file{scos.adb}.
@item ^-g^/DEBUG^
@cindex @option{^-g^/DEBUG^} (@command{gcc})
Generate debugging information. This information is stored in the object
gcc/ada/par-ch4.adb
......@@ -2929,16 +2929,14 @@ package body Ch4 is
(Alloc_Node,
P_Subtype_Indication (Type_Node, Null_Exclusion_Present));
-- AI05-0104 : an explicit null exclusion is not allowed for an
-- AI05-0104: An explicit null exclusion is not allowed for an
-- allocator without initialization. In previous versions of the
-- language it just raises constraint error.
if Ada_Version >= Ada_2012
and then Null_Exclusion_Present
then
if Ada_Version >= Ada_2012 and then Null_Exclusion_Present then
Error_Msg_N
("an allocator with a subtype indication "
& "cannot have a null exclusion", Alloc_Node);
& "cannot have a null exclusion", Alloc_Node);
end if;
end if;
......
gcc/ada/par-ch5.adb
......@@ -6,7 +6,7 @@
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2011, Free Software Foundation, Inc. --
-- Copyright (C) 1992-2012, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
......@@ -1276,13 +1276,21 @@ package body Ch5 is
return Cond;
-- Otherwise check for redundant parens
-- Otherwise check for redundant parentheses
-- If the condition is a conditional or a quantified expression, it is
-- parenthesized in the context of a condition, because of a separate
-- syntax rule.
else
if Style_Check
and then Paren_Count (Cond) > 0
then
Style.Check_Xtra_Parens (First_Sloc (Cond));
if Style_Check and then Paren_Count (Cond) > 0 then
if not Nkind_In (Cond, N_If_Expression,
N_Case_Expression,
N_Quantified_Expression)
or else Paren_Count (Cond) > 1
then
Style.Check_Xtra_Parens (First_Sloc (Cond));
end if;
end if;
-- And return the result
......
gcc/ada/sem_attr.adb
......@@ -6859,9 +6859,11 @@ package body Sem_Attr is
--------------
when Attribute_Adjacent =>
Fold_Ureal (N,
Eval_Fat.Adjacent
(P_Base_Type, Expr_Value_R (E1), Expr_Value_R (E2)), Static);
Fold_Ureal
(N,
Eval_Fat.Adjacent
(P_Base_Type, Expr_Value_R (E1), Expr_Value_R (E2)),
Static);
---------
-- Aft --
......@@ -6946,8 +6948,8 @@ package body Sem_Attr is
-------------
when Attribute_Ceiling =>
Fold_Ureal (N,
Eval_Fat.Ceiling (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N, Eval_Fat.Ceiling (P_Base_Type, Expr_Value_R (E1)), Static);
--------------------
-- Component_Size --
......@@ -6963,10 +6965,10 @@ package body Sem_Attr is
-------------
when Attribute_Compose =>
Fold_Ureal (N,
Eval_Fat.Compose
(P_Base_Type, Expr_Value_R (E1), Expr_Value (E2)),
Static);
Fold_Ureal
(N,
Eval_Fat.Compose (P_Base_Type, Expr_Value_R (E1), Expr_Value (E2)),
Static);
-----------------
-- Constrained --
......@@ -6983,9 +6985,11 @@ package body Sem_Attr is
---------------
when Attribute_Copy_Sign =>
Fold_Ureal (N,
Eval_Fat.Copy_Sign
(P_Base_Type, Expr_Value_R (E1), Expr_Value_R (E2)), Static);
Fold_Ureal
(N,
Eval_Fat.Copy_Sign
(P_Base_Type, Expr_Value_R (E1), Expr_Value_R (E2)),
Static);
--------------
-- Definite --
......@@ -7180,8 +7184,8 @@ package body Sem_Attr is
-----------
when Attribute_Floor =>
Fold_Ureal (N,
Eval_Fat.Floor (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N, Eval_Fat.Floor (P_Base_Type, Expr_Value_R (E1)), Static);
----------
-- Fore --
......@@ -7197,8 +7201,8 @@ package body Sem_Attr is
--------------
when Attribute_Fraction =>
Fold_Ureal (N,
Eval_Fat.Fraction (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N, Eval_Fat.Fraction (P_Base_Type, Expr_Value_R (E1)), Static);
-----------------------
-- Has_Access_Values --
......@@ -7334,9 +7338,10 @@ package body Sem_Attr is
-- T'Emax = 4 * T'Mantissa
Fold_Ureal (N,
Ureal_2 ** (4 * Mantissa) * (Ureal_1 - Ureal_2 ** (-Mantissa)),
True);
Fold_Ureal
(N,
Ureal_2 ** (4 * Mantissa) * (Ureal_1 - Ureal_2 ** (-Mantissa)),
True);
end if;
---------------
......@@ -7416,9 +7421,11 @@ package body Sem_Attr is
------------------
when Attribute_Leading_Part =>
Fold_Ureal (N,
Eval_Fat.Leading_Part
(P_Base_Type, Expr_Value_R (E1), Expr_Value (E2)), Static);
Fold_Ureal
(N,
Eval_Fat.Leading_Part
(P_Base_Type, Expr_Value_R (E1), Expr_Value (E2)),
Static);
------------
-- Length --
......@@ -7498,10 +7505,11 @@ package body Sem_Attr is
-------------
when Attribute_Machine =>
Fold_Ureal (N,
Eval_Fat.Machine
(P_Base_Type, Expr_Value_R (E1), Eval_Fat.Round, N),
Static);
Fold_Ureal
(N,
Eval_Fat.Machine
(P_Base_Type, Expr_Value_R (E1), Eval_Fat.Round, N),
Static);
------------------
-- Machine_Emax --
......@@ -7574,8 +7582,8 @@ package body Sem_Attr is
-- though the non-determinism is certainly permitted.
when Attribute_Machine_Rounding =>
Fold_Ureal (N,
Eval_Fat.Rounding (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N, Eval_Fat.Rounding (P_Base_Type, Expr_Value_R (E1)), Static);
--------------------
-- Machine_Rounds --
......@@ -7805,8 +7813,8 @@ package body Sem_Attr is
-----------
when Attribute_Model =>
Fold_Ureal (N,
Eval_Fat.Model (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N, Eval_Fat.Model (P_Base_Type, Expr_Value_R (E1)), Static);
----------------
-- Model_Emin --
......@@ -7902,14 +7910,14 @@ package body Sem_Attr is
-- Floating-point case
if Is_Floating_Point_Type (P_Type) then
Fold_Ureal (N,
Eval_Fat.Pred (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N, Eval_Fat.Pred (P_Base_Type, Expr_Value_R (E1)), Static);
-- Fixed-point case
elsif Is_Fixed_Point_Type (P_Type) then
Fold_Ureal (N,
Expr_Value_R (E1) - Small_Value (P_Type), True);
Fold_Ureal
(N, Expr_Value_R (E1) - Small_Value (P_Type), True);
-- Modular integer case (wraps)
......@@ -8051,8 +8059,8 @@ package body Sem_Attr is
--------------
when Attribute_Rounding =>
Fold_Ureal (N,
Eval_Fat.Rounding (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N, Eval_Fat.Rounding (P_Base_Type, Expr_Value_R (E1)), Static);
---------------
-- Safe_Emax --
......@@ -8125,9 +8133,11 @@ package body Sem_Attr is
-------------
when Attribute_Scaling =>
Fold_Ureal (N,
Eval_Fat.Scaling
(P_Base_Type, Expr_Value_R (E1), Expr_Value (E2)), Static);
Fold_Ureal
(N,
Eval_Fat.Scaling
(P_Base_Type, Expr_Value_R (E1), Expr_Value (E2)),
Static);
------------------
-- Signed_Zeros --
......@@ -8240,14 +8250,13 @@ package body Sem_Attr is
-- Floating-point case
if Is_Floating_Point_Type (P_Type) then
Fold_Ureal (N,
Eval_Fat.Succ (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N, Eval_Fat.Succ (P_Base_Type, Expr_Value_R (E1)), Static);
-- Fixed-point case
elsif Is_Fixed_Point_Type (P_Type) then
Fold_Ureal (N,
Expr_Value_R (E1) + Small_Value (P_Type), Static);
Fold_Ureal (N, Expr_Value_R (E1) + Small_Value (P_Type), Static);
-- Modular integer case (wraps)
......@@ -8282,8 +8291,10 @@ package body Sem_Attr is
----------------
when Attribute_Truncation =>
Fold_Ureal (N,
Eval_Fat.Truncation (P_Base_Type, Expr_Value_R (E1)), Static);
Fold_Ureal
(N,
Eval_Fat.Truncation (P_Base_Type, Expr_Value_R (E1)),
Static);
----------------
-- Type_Class --
......@@ -8347,9 +8358,10 @@ package body Sem_Attr is
-----------------------
when Attribute_Unbiased_Rounding =>
Fold_Ureal (N,
Eval_Fat.Unbiased_Rounding (P_Base_Type, Expr_Value_R (E1)),
Static);
Fold_Ureal
(N,
Eval_Fat.Unbiased_Rounding (P_Base_Type, Expr_Value_R (E1)),
Static);
-------------------------
-- Unconstrained_Array --
......
gcc/ada/sem_ch13.adb
......@@ -1906,9 +1906,7 @@ package body Sem_Ch13 is
-- is mandated by the semantics of the aspect. Verify that
-- this a scalar type, to prevent cascaded errors.
if A_Id = Aspect_Default_Value
and then Is_Scalar_Type (E)
then
if A_Id = Aspect_Default_Value and then Is_Scalar_Type (E) then
Set_Has_Delayed_Aspects (Base_Type (E));
Record_Rep_Item (Base_Type (E), Aspect);
end if;
......
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