| //@ revisions: Always NonLeaf | 
 | //@ [Always] compile-flags: -Cforce-frame-pointers=yes | 
 | //@ [NonLeaf] compile-flags: -Cforce-frame-pointers=non-leaf | 
 | //@ compile-flags: -Zunstable-options | 
 | //@ compile-flags: -C no-prepopulate-passes -Copt-level=0 | 
 | //@ [NonLeaf] ignore-illumos | 
 | //@ [NonLeaf] ignore-openbsd | 
 | //@ [NonLeaf] ignore-x86 | 
 | //@ [NonLeaf] ignore-x86_64-apple-darwin | 
 | //@ [NonLeaf] ignore-windows-gnu | 
 | //@ [NonLeaf] ignore-thumb | 
 | // result is platform-dependent based on platform's frame pointer settings | 
 |  | 
 | #![crate_type = "lib"] | 
 |  | 
 | // Always: attributes #{{.*}} "frame-pointer"="all" | 
 | // NonLeaf: attributes #{{.*}} "frame-pointer"="non-leaf" | 
 | pub fn foo() {} |