[lib/Fuzzer] add a trace-based mutatation logic. Same idea as with DFSan-based mutator, but instead of relying on taint tracking, try to find the data directly in the input. More (logic and comments) to go.
llvm-svn: 237043
diff --git a/llvm/lib/Fuzzer/test/fuzzer.test b/llvm/lib/Fuzzer/test/fuzzer.test
index 7d1908f..8913706 100644
--- a/llvm/lib/Fuzzer/test/fuzzer.test
+++ b/llvm/lib/Fuzzer/test/fuzzer.test
@@ -20,6 +20,7 @@
RUN: not ./LLVMFuzzer-CounterTest -use_counters=1 -max_len=6 -seed=1 -timeout=15 2>&1 | FileCheck %s
RUN: not ./LLVMFuzzer-DFSanSimpleCmpTest-DFSan -seed=1 -runs=1000000 -timeout=5 2>&1 | FileCheck %s
+RUN: not ./LLVMFuzzer-DFSanSimpleCmpTest -use_traces=1 -seed=1 -runs=1000000 -timeout=5 2>&1 | FileCheck %s
RUN: not ./LLVMFuzzer-DFSanMemcmpTest-DFSan -seed=1 -runs=100 -timeout=5 2>&1 | FileCheck %s