The test suites of a compiler typically involve compiling very large projects; SPEC cpu2017 is I believe a gigabyte or so. Of course, these tests aren't in the

The test suites of a compiler typically involve compiling very large projects; SPEC cpu2017 is I believe a gigabyte or so. Of course, these tests aren't in the llvm source repo, they're in a separate llvm-test-suite repo (although SPEC itself isn't distributed there because it's a benchmark you have to buy).