remove some amusing but redundant code

matthiaskrgr · matthiaskrgr · commit 45efd9ca8b60 · 2024-06-29T00:48:05.000+02:00
diff --git a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs
@@ -181,11 +181,6 @@ impl<'tcx> ValueAnalysis<'tcx> for ConstAnalysis<'_, 'tcx> {
                         state.insert_value_idx(value_target, val, self.map());
                     }
                     if let Some(overflow_target) = overflow_target {
-                        let overflow = match overflow {
-                            FlatSet::Top => FlatSet::Top,
-                            FlatSet::Elem(overflow) => FlatSet::Elem(overflow),
-                            FlatSet::Bottom => FlatSet::Bottom,
-                        };
                         // We have flooded `target` earlier.
                         state.insert_value_idx(overflow_target, overflow, self.map());
                     }

Original file line number	Diff line number	Diff line change
`@@ -181,11 +181,6 @@ impl<'tcx> ValueAnalysis<'tcx> for ConstAnalysis<'_, 'tcx> {`
`181`	`181`	`state.insert_value_idx(value_target, val, self.map());`
`182`	`182`	`}`
`183`	`183`	`if let Some(overflow_target) = overflow_target {`
`184`		`- let overflow = match overflow {`
`185`		`- FlatSet::Top => FlatSet::Top,`
`186`		`- FlatSet::Elem(overflow) => FlatSet::Elem(overflow),`
`187`		`- FlatSet::Bottom => FlatSet::Bottom,`
`188`		`- };`
`189`	`184`	// We have flooded `target` earlier.
`190`	`185`	`state.insert_value_idx(overflow_target, overflow, self.map());`
`191`	`186`	`}`