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authorBob Duff <duff@adacore.com>2022-12-12 15:31:05 -0500
committerMarc Poulhiès <poulhies@adacore.com>2023-01-05 15:29:57 +0100
commit46924ad780665721a51306a646f7f601c359ba4c (patch)
treea4ea9c820d81bf9b1120dff93fc44d1655cd6d28 /gcc/ada/einfo.ads
parenta24888388bab339cf8a8726ca67a0b4947a2d9ce (diff)
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ada: Fix incorrect warning about unreferenced packed arrays
This patch fixes a bug in which a reference to a renaming of a component of a packed array was not counted as a reference, and thus caused incorrect warnings about unreferenced objects. gcc/ada/ * sem_ch5.adb (Analyze_Assignment): Fix the bug by checking Original_Node. The renaming might be elsewhere, but the (original) reference is right here. * errout.adb: Remove pragma Unreferenced which was added because of the above bug. * einfo.ads: Misc cleanup. * lib.adb: Likewise. * lib.ads: Likewise.
Diffstat (limited to 'gcc/ada/einfo.ads')
-rw-r--r--gcc/ada/einfo.ads6
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/ada/einfo.ads b/gcc/ada/einfo.ads
index d71dcaf..94022e7 100644
--- a/gcc/ada/einfo.ads
+++ b/gcc/ada/einfo.ads
@@ -1865,7 +1865,7 @@ package Einfo is
-- Has_Per_Object_Constraint
-- Defined in E_Component entities. Set if the subtype of the component
-- has a per object constraint. Per object constraints result from the
--- following situations :
+-- following situations:
--
-- 1. N_Attribute_Reference - when the prefix is the enclosing type and
-- the attribute is Access.
@@ -4136,14 +4136,14 @@ package Einfo is
-- set instead, or a similar appearance as an out parameter actual, in
-- which case Referenced_As_Out_Parameter is set.
--- Referenced_As_LHS :
+-- Referenced_As_LHS
-- Defined in all entities. This flag is set instead of Referenced if a
-- simple variable that is not a renaming appears as the left side of an
-- assignment. The reason we distinguish this kind of reference is that
-- we have a separate warning for variables that are only assigned and
-- never read.
--- Referenced_As_Out_Parameter :
+-- Referenced_As_Out_Parameter
-- Defined in all entities. This flag is set instead of Referenced if a
-- simple variable that is not a renaming appears as an actual for an out
-- formal. The reason we distinguish this kind of reference is that