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Don't export upstream monomorphizations from compiler-builtins #150182

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Don't export upstream monomorphizations from compiler-builtins #150182

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5 changes: 5 additions & 0 deletions compiler/rustc_codegen_ssa/src/back/symbol_export.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -399,6 +399,11 @@ fn upstream_monomorphizations_provider(
let async_drop_in_place_fn_def_id = tcx.lang_items().async_drop_in_place_fn();

for &cnum in cnums.iter() {
// Don't export upstream monomorphizations from compiler-builtins:
// https://github.com/rust-lang/rust/issues/150173
if tcx.is_compiler_builtins(cnum) {
continue;
}
for (exported_symbol, _) in tcx.exported_generic_symbols(cnum).iter() {
let (def_id, args) = match *exported_symbol {
ExportedSymbol::Generic(def_id, args) => (def_id, args),
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