[libFuzzer] add two experimental flags to make corpus merging more scalable: -save_coverage_summary/-load_coverage_summary. This is still WIP, the documentation will come later if these flags survive

llvm-svn: 298548

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Fuzzer/FuzzerDriver.cpp b/llvm/lib/Fuzzer/FuzzerDriver.cpp
index 1a97a0bf68d..e837eb5ff22 100644
--- a/llvm/lib/Fuzzer/FuzzerDriver.cpp
+++ b/llvm/lib/Fuzzer/FuzzerDriver.cpp
@@ -601,7 +601,9 @@ int FuzzerDriver(int *argc, char ***argv, UserCallback Callback) {
     if (Flags.merge_control_file)
       F->CrashResistantMergeInternalStep(Flags.merge_control_file);
     else
-      F->CrashResistantMerge(Args, *Inputs);
+      F->CrashResistantMerge(Args, *Inputs,
+                             Flags.load_coverage_summary,
+                             Flags.save_coverage_summary);
     exit(0);
   }