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authorKostya Serebryany <kcc@google.com>2017-12-09 02:45:23 +0000
committerKostya Serebryany <kcc@google.com>2017-12-09 02:45:23 +0000
commit610cf4cbe1552fb5c7b14ffd7248f193bd40026f (patch)
tree4e25143dcdd9dfdaba5d87016fb997762550c307
parent637ac6bdca43d90795f459a77eab532018a76851 (diff)
[libFuzzer] make the stack depth signal less agressive, otherwise we are sometimes exploding the corpus size. This still needs more analysis and tuning
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320237 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/fuzzer/FuzzerTracePC.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/fuzzer/FuzzerTracePC.h b/lib/fuzzer/FuzzerTracePC.h
index f3bb41e42..bc7e5ec03 100644
--- a/lib/fuzzer/FuzzerTracePC.h
+++ b/lib/fuzzer/FuzzerTracePC.h
@@ -275,7 +275,7 @@ void TracePC::CollectFeatures(Callback HandleFeature) const {
}
if (auto MaxStackOffset = GetMaxStackOffset())
- HandleFeature(FirstFeature + MaxStackOffset);
+ HandleFeature(FirstFeature + MaxStackOffset / 128);
}
extern TracePC TPC;