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Enable ConstGoto and SeparateConstSwitch passes by default #112040

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Merged
merged 5 commits into from
Jun 1, 2023
Merged

Enable ConstGoto and SeparateConstSwitch passes by default #112040

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cc4d1e5
Stop marking locals as dead in ConstProp.
cjgillot May 21, 2023
4878688
Visit bodies in RPO for const-prop.
cjgillot May 28, 2023
89bf30e
Enable SeparateConstSwitch by default.
cjgillot May 21, 2023
e11e408
Enable ConstGoto pass by default.
cjgillot May 28, 2023
f74695b
Document handling of StorageDead.
cjgillot May 31, 2023
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8 changes: 1 addition & 7 deletions compiler/rustc_mir_transform/src/const_prop.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -886,13 +886,7 @@ impl<'tcx> MutVisitor<'tcx> for ConstPropagator<'_, 'tcx> {
}
}
StatementKind::StorageLive(local) => {
let frame = self.ecx.frame_mut();
frame.locals[local].value =
LocalValue::Live(interpret::Operand::Immediate(interpret::Immediate::Uninit));
}
StatementKind::StorageDead(local) => {
let frame = self.ecx.frame_mut();
frame.locals[local].value = LocalValue::Dead;
Self::remove_const(&mut self.ecx, local);
}
_ => {}
}
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