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-rw-r--r--gcc/tree-vectorizer.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-vectorizer.h b/gcc/tree-vectorizer.h
index d91cc075f0e..af5d5bf2b36 100644
--- a/gcc/tree-vectorizer.h
+++ b/gcc/tree-vectorizer.h
@@ -1420,7 +1420,11 @@ extern dump_user_location_t vect_location;
and then calling
dump_end_scope ();
once the object goes out of scope, thus capturing the nesting of
- the scopes. */
+ the scopes.
+
+ These scopes affect dump messages within them: dump messages at the
+ top level implicitly default to MSG_PRIORITY_USER_FACING, whereas those
+ in a nested scope implicitly default to MSG_PRIORITY_INTERNALS. */
#define DUMP_VECT_SCOPE(MSG) \
AUTO_DUMP_SCOPE (MSG, vect_location)