commit 1f03b43fc7552fe105d33612b3b89b4f0b222798
author Eric Botcazou <ebotcazou@adacore.com> Thu Jun 02 00:45:14 2022 +0200
committer Pierre-Marie de Rodat <derodat@adacore.com> Mon Jul 04 07:46:00 2022 +0000
tree f57e2570922b954aae109ca384b43db44a06eba4
parent 4dab9bed7bd173e55fa44b9d8f4a01dfd8566553

[Ada] Fix dispatching call to primitive function with controlling tagged result

When a dispatching call is made to a primitive function with a controlling
tagged result, the call is dispatching on result and thus must return the
class-wide type of the tagged type to accommodate all possible results.

This was ensured by Expand_Dispatching_Call only in the common case where
the result type is the type of the controlling argument, which does not
cover the case of a primitive function inherited from an ancestor type.

gcc/ada/

	* exp_disp.adb (Expand_Dispatching_Call): Fix detection of calls
	that are dispatching on tagged result.