diff options
| author | Kostya Serebryany <kcc@google.com> | 2017-12-12 23:11:28 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2017-12-12 23:11:28 +0000 |
| commit | e4c546028442192e48480ff2d3d9e29ecc62774d (patch) | |
| tree | b1a48dfc35675aff67861a4d3c1bbb39d7505723 /lib/fuzzer/FuzzerTracePC.h | |
| parent | 8106beb37dc9b0d632c3596895bda21ef8108e7d (diff) | |
[libFuzzer] change the strategy for -experimental_len_control to grow max_len slower
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320531 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/fuzzer/FuzzerTracePC.h')
| -rw-r--r-- | lib/fuzzer/FuzzerTracePC.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/fuzzer/FuzzerTracePC.h b/lib/fuzzer/FuzzerTracePC.h index 300e5db38..dc65cd720 100644 --- a/lib/fuzzer/FuzzerTracePC.h +++ b/lib/fuzzer/FuzzerTracePC.h @@ -276,7 +276,7 @@ void TracePC::CollectFeatures(Callback HandleFeature) const { // Step function, grows similar to 8 * Log_2(A). auto StackDepthStepFunction = [](uint32_t A) -> uint32_t { - uint32_t Log2 = 32 - __builtin_clz(A) - 1; + uint32_t Log2 = Log(A); if (Log2 < 3) return A; Log2 -= 3; return (Log2 + 1) * 8 + ((A >> Log2) & 7); |