diff options
Diffstat (limited to 'compiler/rustc_mir_transform/src/validate.rs')
| -rw-r--r-- | compiler/rustc_mir_transform/src/validate.rs | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/compiler/rustc_mir_transform/src/validate.rs b/compiler/rustc_mir_transform/src/validate.rs index e7930f0a1e3..66fe3ef4141 100644 --- a/compiler/rustc_mir_transform/src/validate.rs +++ b/compiler/rustc_mir_transform/src/validate.rs @@ -221,12 +221,11 @@ impl<'a, 'tcx> CfgChecker<'a, 'tcx> { // Check for cycles let mut stack = FxHashSet::default(); - for i in 0..parent.len() { - let mut bb = BasicBlock::from_usize(i); + for (mut bb, parent) in parent.iter_enumerated_mut() { stack.clear(); stack.insert(bb); loop { - let Some(parent) = parent[bb].take() else { break }; + let Some(parent) = parent.take() else { break }; let no_cycle = stack.insert(parent); if !no_cycle { self.fail( |