tests/mir-opt/coverage_graphviz.rs

   1 // Test that `-C instrument-coverage` with `-Z dump-mir-graphviz` generates a graphviz (.dot file)
   2 // rendering of the `BasicCoverageBlock` coverage control flow graph, with counters and
   3 // expressions.
   4
   5 // needs-profiler-support
   6 // compile-flags: -C instrument-coverage -Z dump-mir-graphviz
   7 // EMIT_MIR coverage_graphviz.main.InstrumentCoverage.0.dot
   8 // EMIT_MIR coverage_graphviz.bar.InstrumentCoverage.0.dot
   9 fn main() {
  10     loop {
  11         if bar() {
  12             break;
  13         }
  14     }
  15 }
  16
  17 #[inline(never)]
  18 fn bar() -> bool {
  19     true
  20 }