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Add a scheme for moving away from extern "rust-intrinsic" entirely

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This commit is contained in:
Oli Scherer 2024-02-19 17:35:12 +00:00
parent f2612daf58
commit 1e57df1969
16 changed files with 131 additions and 8 deletions
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12
compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs
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@ -1255,7 +1255,17 @@ fn codegen_regular_intrinsic_call<'tcx>(
// Unimplemented intrinsics must have a fallback body. The fallback body is obtained
// by converting the `InstanceDef::Intrinsic` to an `InstanceDef::Item`.
_ => return Err(Instance::new(instance.def_id(), instance.args)),
_ => {
let intrinsic = fx.tcx.intrinsic(instance.def_id()).unwrap();
if intrinsic.must_be_overridden {
span_bug!(
source_info.span,
"intrinsic {} must be overridden by codegen_cranelift, but isn't",
intrinsic.name,
);
}
return Err(Instance::new(instance.def_id(), instance.args));
}
}
let ret_block = fx.get_block(destination.unwrap());