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-rw-r--r--gcc/tree.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree.c b/gcc/tree.c
index ba95e154606..23577a1ee1f 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -2483,6 +2483,8 @@ build1_stat (enum tree_code code, tree type, tree node MEM_STAT_DECL)
TREE_CONSTANT (t) = 1;
if (TREE_CODE_CLASS (code) == '1' && node && TREE_INVARIANT (node))
TREE_INVARIANT (t) = 1;
+ if (TREE_CODE_CLASS (code) == 'r' && node && TREE_THIS_VOLATILE (node))
+ TREE_THIS_VOLATILE (t) = 1;
break;
}