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-rw-r--r--gcc/fortran/frontend-passes.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c
index 437ed7ec1..0cba9112a 100644
--- a/gcc/fortran/frontend-passes.c
+++ b/gcc/fortran/frontend-passes.c
@@ -1177,7 +1177,7 @@ optimize_trim (gfc_expr *e)
/* Set the end of the reference to the call to len_trim. */
ref->u.ss.end = fcn;
- gcc_assert (*rr == NULL);
+ gcc_assert (rr != NULL && *rr == NULL);
*rr = ref;
return true;
}