1; verify that errors in the LLVM backend during LTO manifest as lld
2; errors
3
4; RUN: llvm-as %s -o %t.o
5; RUN: not wasm-ld --lto-O0 %t.o -o %t2 2>&1 | FileCheck %s
6
7target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
8target triple = "wasm32-unknown-unknown"
9
10define void @_start() {
11  call i8* @foo()
12  ret void
13}
14
15define i8* @foo() {
16  %1 = call i8* @llvm.returnaddress(i32 0)
17  ret i8* %1
18}
19
20declare i8* @llvm.returnaddress(i32)
21
22; CHECK: error: {{.*}} WebAssembly hasn't implemented __builtin_return_address
23