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authorEric Botcazou <ebotcazou@adacore.com>2018-10-09 15:06:21 +0000
committerPierre-Marie de Rodat <pmderodat@gcc.gnu.org>2018-10-09 15:06:21 +0000
commit865234bf36f1bf8274c3e970f32a8bfb16e96771 (patch)
tree6796fc117e2a91f77eb6bf252eb289c25cd0454a /gcc/ada
parentfd40a157ba7f2e703570dd83feea84ef3b07fff1 (diff)
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[Ada] Fix strange warning when using Ada.Iterator_Interface
The back-end was recently changed to issue more -Wuninitialized warnings on Out parameters and this has caught a case related to Ada.Iterator_Interface.: This patchlet simply kills this uninteresting warning. 2018-10-09 Eric Botcazou <ebotcazou@adacore.com> gcc/ada/ * exp_disp.adb (Make_Disp_Asynchronous_Select_Spec): Set Warnings_Off on the B out parameter. gcc/testsuite/ * gnat.dg/warn17.adb: New testcase. From-SVN: r264977
Diffstat (limited to 'gcc/ada')
-rw-r--r--gcc/ada/ChangeLog5
-rw-r--r--gcc/ada/exp_disp.adb8
2 files changed, 11 insertions, 2 deletions
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 072e19a..a5476022 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,5 +1,10 @@
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
+ * exp_disp.adb (Make_Disp_Asynchronous_Select_Spec): Set
+ Warnings_Off on the B out parameter.
+
+2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
+
* einfo.ads: Small comment fix.
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
diff --git a/gcc/ada/exp_disp.adb b/gcc/ada/exp_disp.adb
index 2169b67..79c0897 100644
--- a/gcc/ada/exp_disp.adb
+++ b/gcc/ada/exp_disp.adb
@@ -2487,9 +2487,10 @@ package body Exp_Disp is
(Typ : Entity_Id) return Node_Id
is
Loc : constant Source_Ptr := Sloc (Typ);
- Def_Id : constant Node_Id :=
+ Def_Id : constant Entity_Id :=
Make_Defining_Identifier (Loc,
Name_uDisp_Asynchronous_Select);
+ B_Id : constant Entity_Id := Make_Defining_Identifier (Loc, Name_uB);
Params : constant List_Id := New_List;
begin
@@ -2501,6 +2502,9 @@ package body Exp_Disp is
-- B : out Dummy_Communication_Block; -- Communication block dummy
-- F : out Boolean; -- Status flag
+ -- The B parameter may be left uninitialized
+ Set_Warnings_Off (B_Id);
+
Append_List_To (Params, New_List (
Make_Parameter_Specification (Loc,
@@ -2518,7 +2522,7 @@ package body Exp_Disp is
Parameter_Type => New_Occurrence_Of (RTE (RE_Address), Loc)),
Make_Parameter_Specification (Loc,
- Defining_Identifier => Make_Defining_Identifier (Loc, Name_uB),
+ Defining_Identifier => B_Id,
Parameter_Type =>
New_Occurrence_Of (RTE (RE_Dummy_Communication_Block), Loc),
Out_Present => True),