From 470fff3d8e48ede98f0a74a1beb9eafc7452f4b4 Mon Sep 17 00:00:00 2001 From: Piotr Trojanek Date: Fri, 28 Jan 2022 18:12:18 +0100 Subject: [PATCH] [Ada] Reset Reachable field when mutating label into loop entity An entity flag Reachable now only applies to E_Label entities and needs to be explicitly reset when mutating labels into loop entities. Only needed to prevent cascaded errors when compiling a malicious ACATS test with -gnatq (try semantics, even if parse errors). Cleanup related to detection of uninitialized scalars with GOTO statements. gcc/ada/ * sem_ch5.adb (Analyze_Statements): Only clear Reachable flag on proper label entities. --- gcc/ada/sem_ch5.adb | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/ada/sem_ch5.adb b/gcc/ada/sem_ch5.adb index f8e6d0c..a0f2206 100644 --- a/gcc/ada/sem_ch5.adb +++ b/gcc/ada/sem_ch5.adb @@ -4012,6 +4012,7 @@ package body Sem_Ch5 is if Ekind (Ent) = E_Label then Reinit_Field_To_Zero (Ent, F_Enclosing_Scope); + Reinit_Field_To_Zero (Ent, F_Reachable); Mutate_Ekind (Ent, E_Loop); if Nkind (Parent (Ent)) = N_Implicit_Label_Declaration then -- 2.7.4