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[Demonstration] Why can skipping an is_copy_raw call cause an ICE? #94660

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[Demonstration] Why can skipping an is_copy_raw call cause an ICE? #94660

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6 changes: 5 additions & 1 deletion compiler/rustc_middle/src/ty/util.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -704,7 +704,11 @@ impl<'tcx> Ty<'tcx> {
tcx_at: TyCtxtAt<'tcx>,
param_env: ty::ParamEnv<'tcx>,
) -> bool {
tcx_at.is_copy_raw(param_env.and(self))
if let ty::Uint(ty::UintTy::U32) = self.kind() {
true
} else {
tcx_at.is_copy_raw(param_env.and(self))
}
}

/// Checks whether values of this type `T` have a size known at
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