src/test/codegen-units/partitioning/shared-generics.rs

   1 //
   2 // no-prefer-dynamic
   3 // NOTE: We always compile this test with -Copt-level=0 because higher opt-levels
   4 //       prevent drop-glue from participating in share-generics.
   5 // incremental
   6 // compile-flags:-Zprint-mono-items=eager -Zshare-generics=yes -Copt-level=0
   7
   8 #![crate_type="rlib"]
   9
  10 // aux-build:shared_generics_aux.rs
  11 extern crate shared_generics_aux;
  12
  13 //~ MONO_ITEM fn foo
  14 pub fn foo() {
  15
  16     //~ MONO_ITEM fn shared_generics_aux::generic_fn::<u16> @@ shared_generics_aux-in-shared_generics.volatile[External]
  17     let _ = shared_generics_aux::generic_fn(0u16, 1u16);
  18
  19     // This should not generate a monomorphization because it's already
  20     // available in `shared_generics_aux`.
  21     let _ = shared_generics_aux::generic_fn(0.0f32, 3.0f32);
  22
  23     // The following line will drop an instance of `Foo`, generating a call to
  24     // Foo's drop-glue function. However, share-generics should take care of
  25     // reusing the drop-glue from the upstream crate, so we do not expect a
  26     // mono item for the drop-glue
  27     let _ = shared_generics_aux::Foo(1);
  28 }