src/test/incremental/thinlto/independent_cgus_dont_affect_each_other.rs

   1 // This test checks that a change in a CGU does not invalidate an unrelated CGU
   2 // during incremental ThinLTO.
   3
   4 // revisions: cfail1 cfail2 cfail3
   5 // compile-flags: -Z query-dep-graph -O
   6 // build-pass (FIXME(62277): could be check-pass?)
   7
   8 #![feature(rustc_attrs)]
   9 #![crate_type="rlib"]
  10
  11 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-foo",
  12                             cfg="cfail2",
  13                             kind="no")]
  14 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-foo",
  15                             cfg="cfail3",
  16                             kind="post-lto")]
  17
  18 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-bar",
  19                             cfg="cfail2",
  20                             kind="pre-lto")]
  21 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-bar",
  22                             cfg="cfail3",
  23                             kind="post-lto")]
  24
  25 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-baz",
  26                             cfg="cfail2",
  27                             kind="post-lto")]
  28 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-baz",
  29                             cfg="cfail3",
  30                             kind="post-lto")]
  31 mod foo {
  32
  33     #[cfg(cfail1)]
  34     pub fn inlined_fn() -> u32 {
  35         1234
  36     }
  37
  38     #[cfg(not(cfail1))]
  39     pub fn inlined_fn() -> u32 {
  40         // See `cgu_keeps_identical_fn.rs` for why this is different
  41         // from the other version of this function.
  42         12345
  43     }
  44 }
  45
  46 pub mod bar {
  47     use foo::inlined_fn;
  48
  49     pub fn caller() -> u32 {
  50         inlined_fn()
  51     }
  52 }
  53
  54 pub mod baz {
  55     pub fn unrelated_to_other_fns() -> u64 {
  56         0xbeef
  57     }
  58 }