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-rw-r--r--gcc/tree.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree.h b/gcc/tree.h
index a74872f..cf546ed 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -925,7 +925,9 @@ extern void omp_clause_range_check_failed (const_tree, const char *, int,
#define CALL_FROM_THUNK_P(NODE) (CALL_EXPR_CHECK (NODE)->base.protected_flag)
/* In a CALL_EXPR, if the function being called is BUILT_IN_ALLOCA, means that
- it has been built for the declaration of a variable-sized object. */
+ it has been built for the declaration of a variable-sized object and, if the
+ function being called is BUILT_IN_MEMCPY, means that it has been built for
+ the assignment of a variable-sized object. */
#define CALL_ALLOCA_FOR_VAR_P(NODE) \
(CALL_EXPR_CHECK (NODE)->base.protected_flag)