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Don't merge vtables when full debuginfo is enabled.

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This commit is contained in:
Michael Woerister 2023-01-27 15:29:04 +00:00
parent 6874f4e3fc
commit e5995e6168
2 changed files with 13 additions and 0 deletions
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5
compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
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@ -1499,6 +1499,11 @@ pub fn create_vtable_di_node<'ll, 'tcx>(
return;
}
// When full debuginfo is enabled, we want to try and prevent vtables from being
// merged. Otherwise debuggers will have a hard time mapping from dyn pointer
// to concrete type.
llvm::SetUnnamedAddress(vtable, llvm::UnnamedAddr::No);
let vtable_name =
compute_debuginfo_vtable_name(cx.tcx, ty, poly_trait_ref, VTableNameKind::GlobalVariable);
let vtable_type_di_node = build_vtable_type_di_node(cx, ty, poly_trait_ref);