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[fuzzer] properly annotate fallthrough, add one more entry to FAQ

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229880 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kostya Serebryany 2015-02-19 18:21:12 +00:00
parent 5a71687970
commit 0b1ec08b77
2 changed files with 7 additions and 1 deletions
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2
lib/Fuzzer/FuzzerMutate.cpp
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@ -47,7 +47,7 @@ void Mutate(Unit *U, size_t MaxLen) {
U->erase(U->begin() + rand() % U->size());
break;
}
// Fallthrough
[[clang::fallthrough]];
case 1:
if (U->size() < MaxLen) {
U->insert(U->begin() + rand() % U->size(), RandCh());

6
lib/Fuzzer/README.txt
View File

@ -104,3 +104,9 @@ A.
more) the speed benefit from the in-process fuzzer is negligible.
* If the target library runs persistent threads (that outlive
execution of one test) the fuzzing results will be unreliable.
Q. So, what exactly this Fuzzer is good for?
A. This Fuzzer might be a good choice for testing libraries that have relatively
small inputs, each input takes < 1ms to run, and the library code is not expected
to crash on invalid inputs.
Examples: regular expression matchers, text or binary format parsers.