X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=compiler%2Frustc_codegen_cranelift%2Fsrc%2Ftrap.rs;h=67495c7414840dfe620009a58340626f5e0b412d;hb=de41c58c9fe64661bce1ba3803b95bb96bae3a01;hp=690d96764a8f588d1e8ed0e5827c71aec89c0d05;hpb=5d5ff84130da0d74c6ece368dbe821d8f83fa526;p=rust.git

diff --git a/compiler/rustc_codegen_cranelift/src/trap.rs b/compiler/rustc_codegen_cranelift/src/trap.rs
index 690d96764a8..67495c74148 100644
--- a/compiler/rustc_codegen_cranelift/src/trap.rs
+++ b/compiler/rustc_codegen_cranelift/src/trap.rs
@@ -67,3 +67,15 @@ pub(crate) fn trap_unimplemented(fx: &mut FunctionCx<'_, '_, impl Module>, msg:
     let true_ = fx.bcx.ins().iconst(types::I32, 1);
     fx.bcx.ins().trapnz(true_, TrapCode::User(!0));
 }
+
+/// Like `trap_unimplemented` but returns a fake value of the specified type.
+///
+/// Trap code: user65535
+pub(crate) fn trap_unimplemented_ret_value<'tcx>(
+    fx: &mut FunctionCx<'_, 'tcx, impl Module>,
+    dest_layout: TyAndLayout<'tcx>,
+    msg: impl AsRef<str>,
+) -> CValue<'tcx> {
+    trap_unimplemented(fx, msg);
+    CValue::by_ref(Pointer::const_addr(fx, 0), dest_layout)
+}