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Add UWTable attr to functions with a personality function #125844

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Add UWTable attr to functions with a personality function #125844

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5 changes: 5 additions & 0 deletions compiler/rustc_codegen_llvm/src/builder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1029,6 +1029,11 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> {
}

fn set_personality_fn(&mut self, personality: &'ll Value) {
// Work around for https://github.com/rust-lang/rust/issues/123733
// add the UWTable attribute to every function with a personality function.
let uwtable = attributes::uwtable_attr(self.llcx, None);
attributes::apply_to_llfn(self.llfn(), llvm::AttributePlace::Function, &[uwtable]);

unsafe {
llvm::LLVMSetPersonalityFn(self.llfn(), personality);
}
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