diff --git a/src/abi.rs b/src/abi.rs index b098594dbcc..166dd080cf2 100644 --- a/src/abi.rs +++ b/src/abi.rs @@ -4,6 +4,7 @@ use rustc_codegen_ssa::traits::{AbiBuilderMethods, BaseTypeMethods}; use rustc_data_structures::fx::FxHashSet; use rustc_middle::bug; +use rustc_middle::ty::layout::LayoutOf; use rustc_middle::ty::Ty; #[cfg(feature = "master")] use rustc_session::config; @@ -184,9 +185,17 @@ fn gcc_type(&self, cx: &CodegenCx<'gcc, 'tcx>) -> FnAbiGcc<'gcc> { } PassMode::Indirect { attrs, meta_attrs: Some(meta_attrs), on_stack } => { assert!(!on_stack); - let ty = - apply_attrs(cx.type_ptr_to(arg.memory_ty(cx)), &attrs, argument_tys.len()); - apply_attrs(ty, &meta_attrs, argument_tys.len()) + // Construct the type of a (wide) pointer to `ty`, and pass its two fields. + // Any two ABI-compatible unsized types have the same metadata type and + // moreover the same metadata value leads to the same dynamic size and + // alignment, so this respects ABI compatibility. + let ptr_ty = Ty::new_mut_ptr(cx.tcx, arg.layout.ty); + let ptr_layout = cx.layout_of(ptr_ty); + let typ1 = ptr_layout.scalar_pair_element_gcc_type(cx, 0); + let typ2 = ptr_layout.scalar_pair_element_gcc_type(cx, 1); + argument_tys.push(apply_attrs(typ1, &attrs, argument_tys.len())); + argument_tys.push(apply_attrs(typ2, &meta_attrs, argument_tys.len())); + continue; } }; argument_tys.push(arg_ty); diff --git a/tests/failing-ui-tests.txt b/tests/failing-ui-tests.txt index 5df9381ecc7..4f0c9814e73 100644 --- a/tests/failing-ui-tests.txt +++ b/tests/failing-ui-tests.txt @@ -49,7 +49,6 @@ tests/ui/coroutine/panic-safe.rs tests/ui/issues/issue-14875.rs tests/ui/issues/issue-29948.rs tests/ui/panics/nested_panic_caught.rs -tests/ui/const_prop/ice-issue-111353.rs tests/ui/process/println-with-broken-pipe.rs tests/ui/lto/thin-lto-inlines2.rs tests/ui/lto/weak-works.rs @@ -60,7 +59,6 @@ tests/ui/lto/msvc-imp-present.rs tests/ui/lto/lto-thin-rustc-loads-linker-plugin.rs tests/ui/lto/all-crates.rs tests/ui/async-await/deep-futures-are-freeze.rs -tests/ui/closures/capture-unsized-by-ref.rs tests/ui/coroutine/resume-after-return.rs tests/ui/simd/masked-load-store.rs tests/ui/simd/repr_packed.rs