[
{
  "directory": "DIR",
  "command": "clang -E DIR/target-filename_input.cpp",
  "file": "DIR/target-filename_input.cpp"
},
{
  "directory": "DIR",
  "command": "clang -E DIR/target-filename_input.cpp -o a.o",
  "file": "DIR/target-filename_input.cpp"
},
{
  "directory": "DIR",
  "command": "clang -E DIR/target-filename_input.cpp -ob.o",
  "file": "DIR/target-filename_input.cpp"
},
{
  "directory": "DIR",
  "command": "clang -E DIR/target-filename_input.cpp -o first.o -o last.o",
  "file": "DIR/target-filename_input.cpp"
}
]