src/test/run-make-fulldeps/coverage-reports/expected_show_coverage.loops_branches.txt

   1     1|       |#![allow(unused_assignments, unused_variables, while_true)]
   2     2|       |
   3     3|       |// This test confirms an earlier problem was resolved, supporting the MIR graph generated by the
   4     4|       |// structure of this `fmt` function.
   5     5|       |
   6     6|       |struct DebugTest;
   7     7|       |
   8     8|       |impl std::fmt::Debug for DebugTest {
   9     9|      1|    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
  10    10|      1|        if true {
  11    11|      1|            if false {
  12    12|       |                while true {
  13    13|       |                }
  14    14|      1|            }
  15    15|      1|            write!(f, "error")?;
  16                                             ^0
  17    16|       |        } else {
  18    17|       |        }
  19    18|      1|        Ok(())
  20    19|      1|    }
  21    20|       |}
  22    21|       |
  23    22|      1|fn main() {
  24    23|      1|    let debug_test = DebugTest;
  25    24|      1|    println!("{:?}", debug_test);
  26    25|      1|}
  27    26|       |
  28    27|       |/*
  29    28|       |
  30    29|       |This is the error message generated, before the issue was fixed:
  31    30|       |
  32    31|       |error: internal compiler error: compiler/rustc_mir/src/transform/coverage/mod.rs:374:42:
  33    32|       |Error processing: DefId(0:6 ~ bug_incomplete_cov_graph_traversal_simplified[317d]::{impl#0}::fmt):
  34    33|       |Error { message: "`TraverseCoverageGraphWithLoops` missed some `BasicCoverageBlock`s:
  35    34|       |[bcb6, bcb7, bcb9]" }
  36    35|       |
  37    36|       |*/
  38