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[Ada] Ignore Predicate_Failure in GNATprove mode

Message ID 20220519141609.GA3723309@adacore.com
State New
Headers show
Series [Ada] Ignore Predicate_Failure in GNATprove mode | expand

Commit Message

Pierre-Marie de Rodat May 19, 2022, 2:16 p.m. UTC 
In GNATprove mode we are don't want predicate failure to pollute the
predicate expression extracted from the predicate function.

Tested on x86_64-pc-linux-gnu, committed on trunk

gcc/ada/

	* sem_ch13.adb (Build_Predicate_Function): Ignore predicate
	failure in GNATprove mode.
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Patch

diff --git a/gcc/ada/sem_ch13.adb b/gcc/ada/sem_ch13.adb
--- a/gcc/ada/sem_ch13.adb
+++ b/gcc/ada/sem_ch13.adb
@@ -10487,7 +10487,13 @@  package body Sem_Ch13 is
                Second_Formal : constant Entity_Id :=
                  Next_Entity (Object_Entity);
             begin
-               if Present (PF_Expr) then
+               --  In GNATprove mode we are only interested in the predicate
+               --  expression itself and don't want a raise expression that
+               --  comes from the Predicate_Failure.
+
+               if Present (PF_Expr)
+                 and then not GNATprove_Mode
+               then
                   pragma Assert (Present (Second_Formal));
 
                   --  This is an ugly hack to cope with an ugly situation.