src/test/codegen-units/partitioning/incremental-merging.rs

   1 // We specify -C incremental here because we want to test the partitioning for
   2 // incremental compilation
   3 // compile-flags:-Zprint-mono-items=lazy -Cincremental=tmp/partitioning-tests/incremental-merging
   4 // compile-flags:-Ccodegen-units=3
   5
   6 #![crate_type = "rlib"]
   7
   8 // This test makes sure that merging of CGUs works together with incremental
   9 // compilation but at the same time does not modify names of CGUs that were not
  10 // affected by merging.
  11 //
  12 // We expect CGUs `aaa` and `bbb` to be merged (because they are the smallest),
  13 // while `ccc` and `ddd` are supposed to stay untouched.
  14
  15 pub mod aaa {
  16     //~ MONO_ITEM fn aaa::foo @@ incremental_merging-aaa--incremental_merging-bbb[External]
  17     pub fn foo(a: u64) -> u64 {
  18         a + 1
  19     }
  20 }
  21
  22 pub mod bbb {
  23     //~ MONO_ITEM fn bbb::foo @@ incremental_merging-aaa--incremental_merging-bbb[External]
  24     pub fn foo(a: u64, b: u64) -> u64 {
  25         a + b + 1
  26     }
  27 }
  28
  29 pub mod ccc {
  30     //~ MONO_ITEM fn ccc::foo @@ incremental_merging-ccc[External]
  31     pub fn foo(a: u64, b: u64, c: u64) -> u64 {
  32         a + b + c + 1
  33     }
  34 }
  35
  36 pub mod ddd {
  37     //~ MONO_ITEM fn ddd::foo @@ incremental_merging-ddd[External]
  38     pub fn foo(a: u64, b: u64, c: u64, d: u64) -> u64 {
  39         a + b + c + d + 1
  40     }
  41 }