bjoernager/rust
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Use landingpad filter to encode aborting landing pad

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This commit is contained in:
Gary Guo 2022-11-06 21:24:20 +00:00
parent 8660707bb2
commit 47171e0c50
4 changed files with 13 additions and 1 deletions
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7
compiler/rustc_codegen_llvm/src/builder.rs
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@ -992,6 +992,13 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> {
(self.extract_value(landing_pad, 0), self.extract_value(landing_pad, 1))
}
fn filter_landing_pad(&mut self, pers_fn: &'ll Value) -> (&'ll Value, &'ll Value) {
let ty = self.type_struct(&[self.type_i8p(), self.type_i32()], false);
let landing_pad = self.landing_pad(ty, pers_fn, 1 /* FIXME should this be 0? */);
self.add_clause(landing_pad, self.const_array(self.type_i8p(), &[]));
(self.extract_value(landing_pad, 0), self.extract_value(landing_pad, 1))
}
fn resume(&mut self, exn0: &'ll Value, exn1: &'ll Value) {
let ty = self.type_struct(&[self.type_i8p(), self.type_i32()], false);
let mut exn = self.const_poison(ty);