FileCheck

all

Flexible pattern matching file verifier. It is typically used from LLVM regression tests and forms a part of a `lit` test.

Examples (5)

Match `input_file` content with pattern file `check_file`

FileCheck --input-file=path/to/input_file path/to/check_file

Match input from the `stdin` with pattern file `check_file`

echo "some_text" | FileCheck path/to/check_file

Match with the specified custom check `prefix` (Note: The default prefix is `CHECK`)

echo "some_text" | FileCheck --check-prefix=prefix path/to/check_file

Print good directive pattern matches

echo "some_text" | FileCheck -v path/to/check_file

Input `llvm_code.ll` into llvm-as, then pipe the output into FileCheck to match

llvm-as path/to/llvm_code.ll | FileCheck path/to/check_file