[PATCH] D24049: [libfuzzer] simplified unit truncation; do not write trunc items to disc

[Kostya Serebryany via llvm-commits]

kcc accepted this revision.
kcc added a comment.
This revision is now accepted and ready to land.

LGTM with nits


================
Comment at: lib/Fuzzer/FuzzerLoop.cpp:379
@@ -397,2 +378,3 @@
     for (const auto &U : Corpus) {
-      if (S < U.size() && RunOne(U.data(), S)) {
+      uint64_t S = MD.GetRand()(U.size() * Fraction);
+      if (RunOne(U.data(), S)) {
----------------
if (!S) continue;

================
Comment at: lib/Fuzzer/FuzzerLoop.cpp:387
@@ -405,3 +386,3 @@
   }
-  PrintStats("TRUNC  ");
+  Printf("\tTRUNC  units: %zd\n", TruncInputs);
 }
----------------
Printf("INFO: TRUNC: %zd truncated units added to the in-memory corpus", ...);


https://reviews.llvm.org/D24049