Remove some unnecessary erases #141051
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Remove some unnecessary erases #141051
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r? oli-obk |
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r? @nnethercote rustbot has assigned @nnethercote. Use |
rustbot
added
S-waiting-on-review
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Some changes occurred to MIR optimizations cc @rust-lang/wg-mir-opt |
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(or anyone can review it, not just oli) |
compiler-errors
commented
May 15, 2025
| @@ -490,11 +490,7 @@ impl<'a, 'tcx> CastCheck<'tcx> { | |||
| && let Some(from_trait) = fcx.tcx.get_diagnostic_item(sym::From) | |||
| { | |||
| let ty = fcx.resolve_vars_if_possible(self.cast_ty); | |||
| // Erase regions to avoid panic in `prove_value` when calling | |||
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| @@ -1453,9 +1453,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { | |||
| // contain named regions. So we erase and anonymize everything | |||
| // here to compare the types modulo regions below. | |||
| let proj = cx.tcx().erase_regions(proj); | |||
| let proj = cx.tcx().anonymize_bound_vars(proj); | |||
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erase_regions already anonymizes binders
| @@ -32,7 +32,7 @@ impl<'a, 'tcx> MutVisitor<'tcx> for SubTypeChecker<'a, 'tcx> { | |||
| let mut rval_ty = rvalue.ty(self.local_decls, self.tcx); | |||
| // Not erasing this causes `Free Regions` errors in validator, | |||
| // when rval is `ReStatic`. | |||
| rval_ty = self.tcx.erase_regions_ty(rval_ty); | |||
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this was directly calling the query for some reason, rather than going throuh erase_regions
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Some nits I pulled out of #140814.