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Expand upon comment regarding self-assignment

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Jannis Christopher Köhl 2022-11-12 20:05:52 +01:00
parent abe31a9986
commit d66a00a7b1
1 changed files with 1 additions and 1 deletions
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compiler/rustc_mir_transform/src/dataflow_const_prop.rs
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@ -317,7 +317,7 @@ struct CollectAndPatch<'tcx, 'map> {
/// For a given MIR location, this stores the values of the operands used by that location. In
/// particular, this is before the effect, such that the operands of `_1 = _1 + _2` are
/// properly captured.
/// properly captured. (This may become UB soon, but it is currently emitted even by safe code.)
before_effect: FxHashMap<(Location, Place<'tcx>), ScalarTy<'tcx>>,
/// Stores the assigned values for assignments where the Rvalue is constant.