diff options
| -rw-r--r-- | src/librustc_mir/transform/const_prop.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/librustc_mir/transform/const_prop.rs b/src/librustc_mir/transform/const_prop.rs index 44c68abd249..2fa2167d5f8 100644 --- a/src/librustc_mir/transform/const_prop.rs +++ b/src/librustc_mir/transform/const_prop.rs @@ -1112,7 +1112,7 @@ impl<'mir, 'tcx> MutVisitor<'tcx> for ConstPropagator<'mir, 'tcx> { } TerminatorKind::SwitchInt { ref mut discr, .. } => { // FIXME: This is currently redundant with `visit_operand`, but sadly - // always visiting operands currently causes a perf regression, so + // always visiting operands currently causes a perf regression in LLVM codegen, so // `visit_operand` currently only runs for propagates places for `mir_opt_level=3`. self.propagate_operand(discr, location) } |