* [Ada] Fix PR ada/104258
@ 2022-01-28 10:10 Eric Botcazou
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From: Eric Botcazou @ 2022-01-28 10:10 UTC (permalink / raw)
To: gcc-patches
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This is a regression present on mainline and 11 branch: the new transformation
applied during expansion by Narrow_Large_Operation would incorrectly perform
name resolution for the operator again.
Tested on x86_64-suse-linux, applied on mainline and 11 branch.
2022-01-28 Eric Botcazou <ebotcazou@adacore.com>
PR ada/104258
* exp_ch4.adb (Narrow_Large_Operation): Also copy the entity, if
any, when rewriting the operator node.
2022-01-28 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/generic_comp.adb: New test.
--
Eric Botcazou
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diff --git a/gcc/ada/exp_ch4.adb b/gcc/ada/exp_ch4.adb
index c31f5bb36ba..2506c67e936 100644
--- a/gcc/ada/exp_ch4.adb
+++ b/gcc/ada/exp_ch4.adb
@@ -14314,9 +14314,13 @@ package body Exp_Ch4 is
return;
end if;
- -- Finally, rewrite the operation in the narrower type
+ -- Finally, rewrite the operation in the narrower type, but make sure
+ -- not to perform name resolution for the operator again.
Nop := New_Op_Node (Kind, Sloc (N));
+ if Nkind (N) in N_Has_Entity then
+ Set_Entity (Nop, Entity (N));
+ end if;
if Binary then
Set_Left_Opnd (Nop, Convert_To (Ntyp, L));
[-- Attachment #3: generic_comp.adb --]
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-- { dg-do run }
procedure Generic_Comp is
generic
type Element_Type is private;
type Index_Type is (<>);
type Array_Type is array (Index_Type range <>) of Element_Type;
with function ">" (Left, Right : Element_Type) return Boolean is <>;
procedure Gen (Data: in out Array_Type);
procedure Gen (Data: in out Array_Type) is
begin
if not (Data'Length > 1)
or else not (Integer'(Data'Length) > 1)
or else not Standard.">" (Data'Length, 1)
or else not Standard.">" (Integer'(Data'Length), 1)
then
raise Program_Error;
end if;
end;
type My_Array is array (Positive range <>) of Integer;
function Less_Than (L, R : Integer) return Boolean is
begin
return L < R;
end;
procedure Chk_Down is new Gen (Element_Type => Integer,
Index_Type => Positive,
Array_Type => My_Array,
">" => Less_Than);
Data : My_Array (1 .. 2);
begin
Chk_Down (Data);
end;
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