From: Gary Dismukes <dismukes@adacore.com>
Date: Tue, 11 May 2021 18:49:46 +0000 (-0400)
Subject: [Ada] Regression on overloaded prefixed calls related to prefixed-call extension
X-Git-Tag: basepoints/gcc-13~6244
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e11a24513632e2b2a3842bfd3ef226565f523778;p=thirdparty%2Fgcc.git

[Ada] Regression on overloaded prefixed calls related to prefixed-call extension

gcc/ada/

	* sem_ch4.adb (Try_One_Prefix_Interpretation): Augment test of
	"not Extensions_Allowed" with test for absence of Obj_Type's
	primitive operations Elist, as an additional condition for early
	return from this procedure.
---

diff --git a/gcc/ada/sem_ch4.adb b/gcc/ada/sem_ch4.adb
index eb1a556dd5c7..1bfd222301ec 100644
--- a/gcc/ada/sem_ch4.adb
+++ b/gcc/ada/sem_ch4.adb
@@ -9558,9 +9558,13 @@ package body Sem_Ch4 is
 
          --  Extension feature: Calls with prefixed views are also supported
          --  for untagged types, so skip the early return when extensions are
-         --  enabled.
+         --  enabled, unless the type doesn't have a primitive operations list
+         --  (such as in the case of predefined types).
 
-         if (not Is_Tagged_Type (Obj_Type) and then not Extensions_Allowed)
+         if (not Is_Tagged_Type (Obj_Type)
+              and then
+                (not Extensions_Allowed
+                  or else not Present (Primitive_Operations (Obj_Type))))
            or else Is_Incomplete_Type (Obj_Type)
          then
             Obj_Type := Prev_Obj_Type;