test/tools/llvm-size/no-input.test

## Show that llvm-size emits an error if passed in a non-existent file.

# RUN: not llvm-size %t.blah 2>&1 | FileCheck %s -DFILE=%t.blah -DMSG=%errc_ENOENT --check-prefix=ENOENT
# ENOENT: {{.*}}llvm-size{{.*}}: error: '[[FILE]]': [[MSG]]

## Show that llvm-size reads a.out if not passed any file.

# RUN: rm -rf %t && mkdir -p %t
# RUN: cd %t
# RUN: yaml2obj %s -o a.out
# RUN: llvm-size 2>&1 | FileCheck %s -DFILE=a.out

# CHECK:         text    data     bss     dec     hex filename
# CHECK-NEXT:      42       0       0      42      2a a.out

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
Sections:
  - Name:  .text
    Type:  SHT_PROGBITS
    Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
    Size:  42