[libFuzzer] don't limit memcmp tracing with 8 bytes

llvm-svn: 257245

1 files changed, 10 insertions, 2 deletions

diff --git a/llvm/lib/Fuzzer/test/MemcmpTest.cpp b/llvm/lib/Fuzzer/test/MemcmpTest.cpp
index 47ce59e..c19c957 100644
--- a/llvm/lib/Fuzzer/test/MemcmpTest.cpp
+++ b/llvm/lib/Fuzzer/test/MemcmpTest.cpp
@@ -10,8 +10,16 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
     if (Size >= 12 && memcmp(Data + 8, "ABCD", 4) == 0) {
       if (Size >= 14 && memcmp(Data + 12, "XY", 2) == 0) {
         if (Size >= 16 && memcmp(Data + 14, "KLM", 3) == 0) {
-          fprintf(stderr, "BINGO\n");
-          exit(1);
+          if (Size >= 27 && memcmp(Data + 17, "ABCDE-GHIJ", 10) == 0){
+            fprintf(stderr, "BINGO %zd\n", Size);
+            for (size_t i = 0; i < Size; i++) {
+              uint8_t C = Data[i];
+              if (C >= 32 && C < 127)
+                fprintf(stderr, "%c", C);
+            }
+            fprintf(stderr, "\n");
+            exit(1);
+          }
         }
       }
     }