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accept some differences for rustc_abi(assert_eq), so that we can test more things to be compatible

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Ralf Jung 2023-09-02 11:59:31 +02:00
parent 8922c0c541
commit c3e14edd8b
7 changed files with 449 additions and 64 deletions
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4
compiler/rustc_passes/src/abi_test.rs
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@ -121,9 +121,7 @@ fn test_arg_abi_eq<'tcx>(
// Ideally we'd just compare the `mode`, but that is not enough -- for some modes LLVM will look
// at the type. Comparing the `mode` and `layout.abi` should catch basically everything though
// (except for tricky cases around unized types).
// This *is* overly strict (e.g. we compare the sign of integer `Primitive`s, or parts of `ArgAttributes` that do not affect ABI),
// but for the purpose of ensuring repr(transparent) ABI compatibility that is fine.
abi1.mode == abi2.mode && abi1.layout.abi == abi2.layout.abi
abi1.mode.eq_abi(&abi2.mode) && abi1.layout.abi.eq_up_to_validity(&abi2.layout.abi)
}
fn test_abi_eq<'tcx>(abi1: &'tcx FnAbi<'tcx, Ty<'tcx>>, abi2: &'tcx FnAbi<'tcx, Ty<'tcx>>) -> bool {