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authorJason Merrill <jason@redhat.com>2020-06-06 00:07:21 -0400
committerJason Merrill <jason@redhat.com>2020-06-09 12:05:50 -0400
commitef41587df9839d1dfc77dbc48a0830e42b36626e (patch)
tree71f9a40bd19f2e7a614caff1b7a634b6a75cc2dc /gcc
parentbf4ab2689bb586971d5b2ab6b13d078cd7ac45af (diff)
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c++: Tweak predeclare_vla.
We only need to predeclare a VLA type if it's wrapped in a pointer type; otherwise gimplify_type_sizes will handle it. gcc/cp/ChangeLog: PR c++/95552 * cp-gimplify.c (predeclare_vla): Only predeclare a VLA if it's wrapped in a pointer type.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/cp/cp-gimplify.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/cp/cp-gimplify.c b/gcc/cp/cp-gimplify.c
index e8fbc30..0e949e2 100644
--- a/gcc/cp/cp-gimplify.c
+++ b/gcc/cp/cp-gimplify.c
@@ -1205,7 +1205,8 @@ predeclare_vla (tree expr)
return expr;
vla = TREE_TYPE (vla);
}
- if (TYPE_NAME (vla) || !variably_modified_type_p (vla, NULL_TREE))
+ if (vla == type || TYPE_NAME (vla)
+ || !variably_modified_type_p (vla, NULL_TREE))
return expr;
tree decl = build_decl (input_location, TYPE_DECL, NULL_TREE, vla);