[PATCH] D30371: [libfuzzer] use find to feed xargs

[Zachary Turner via Phabricator via llvm-commits]

zturner added a comment.

Given that this problem keeps happening and is not likely to go away any time soon, I wonder if the best solution is to build some special syntax into lit that can expand globs.  lit already has plenty of cases where it does text replacements, for example if you write `%t` in a run line, or `{{.*}}` in a match line.

Could we add some sort of replacement sequence that can be used in run lines which expands a glob expression?  One idea for a possible syntax might be `%[expression]`, where `expression` can itself be another substituion sequence.  This would allow you to write line 3 above as:

  RUN: sancov -covered-functions %[LLVMFuzzer-NullDerefTest*] %[%t_workdir/*.sancov] | FileCheck %s --check-prefix=SANCOV




https://reviews.llvm.org/D30371