simplify constant value pair field access
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1 changed files with 1 additions and 6 deletions
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@ -183,12 +183,7 @@ impl<'b, 'a, 'tcx:'b> ConstPropagator<'b, 'a, 'tcx> {
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trace!("layout computed");
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trace!("layout computed");
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use rustc_data_structures::indexed_vec::Idx;
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use rustc_data_structures::indexed_vec::Idx;
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let field_index = field.index();
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let field_index = field.index();
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let val = if field_index == 0 {
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let val = [a, b][field_index];
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a
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} else {
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assert_eq!(field_index, 1);
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b
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};
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let field = base_layout.field(&*self, field_index).ok()?;
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let field = base_layout.field(&*self, field_index).ok()?;
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trace!("projection resulted in: {:?}", val);
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trace!("projection resulted in: {:?}", val);
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Some((Value::ByVal(val), field.ty, span))
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Some((Value::ByVal(val), field.ty, span))
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