1# REQUIRES: x86
2# Verify that default output filename is a.out.
3
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
5# RUN: mkdir -p %t.dir
6# RUN: cd %t.dir
7# RUN: rm -f a.out
8# RUN: not llvm-readobj a.out > /dev/null 2>&1
9# RUN: ld.lld %t
10# RUN: llvm-readobj a.out > /dev/null 2>&1
11
12# RUN: not ld.lld %t -o 2>&1 | FileCheck --check-prefix=NO_O_VAL %s
13# NO_O_VAL: error: -o: missing argument
14
15.globl _start
16_start:
17  mov $60, %rax
18  mov $42, %rdi
19  syscall
20