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* [gcc r12-4540] [Ada] Prevent use of an uninitialized AST field with universal integer
@ 2021-10-20 10:18 Pierre-Marie de Rodat
  0 siblings, 0 replies; only message in thread
From: Pierre-Marie de Rodat @ 2021-10-20 10:18 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:ff2746728050429684bf62729df798189cc1d396

commit r12-4540-gff2746728050429684bf62729df798189cc1d396
Author: Piotr Trojanek <trojanek@adacore.com>
Date:   Tue Oct 12 17:42:05 2021 +0200

    [Ada] Prevent use of an uninitialized AST field with universal integer
    
    gcc/ada/
    
            * exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Guard
            against equality of an uninitialized RM_Size field.

Diff:
---
 gcc/ada/exp_spark.adb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/ada/exp_spark.adb b/gcc/ada/exp_spark.adb
index bbfee622969..bce745b2690 100644
--- a/gcc/ada/exp_spark.adb
+++ b/gcc/ada/exp_spark.adb
@@ -451,6 +451,7 @@ package body Exp_SPARK is
                Apply_Universal_Integer_Attribute_Checks (N);
 
                if Present (Typ)
+                 and then Known_RM_Size (Typ)
                  and then RM_Size (Typ) = RM_Size (Standard_Long_Long_Integer)
                then
                   --  ??? This should rather be a range check, but this would


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