diff options
Diffstat (limited to 'compiler/rustc_codegen_llvm/src')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/abi.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/abi.rs b/compiler/rustc_codegen_llvm/src/abi.rs index 65d4d5120d0..9e834b83df4 100644 --- a/compiler/rustc_codegen_llvm/src/abi.rs +++ b/compiler/rustc_codegen_llvm/src/abi.rs @@ -351,6 +351,11 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { // guarnateeing that we generate ABI-compatible LLVM IR. Things get tricky for // aggregates... if matches!(arg.layout.abi, abi::Abi::Aggregate { .. }) { + assert!( + arg.layout.is_sized(), + "`PassMode::Direct` for unsized type: {}", + arg.layout.ty + ); // This really shouldn't happen, since `immediate_llvm_type` will use // `layout.fields` to turn this Rust type into an LLVM type. This means all // sorts of Rust type details leak into the ABI. However wasm sadly *does* |