--- /dev/null
+! { dg-do compile }
+! { dg-options "-std=f95" }
+! Tests fix for PR17737 - already initialized variable cannot appear
+! in data statement
+ integer :: i, j = 1
+ data i/0/
+ data i/0/ ! { dg-error "Extension: re-initialization" }
+ data j/2/ ! { dg-error "Extension: re-initialization" }
+ end
+