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-rw-r--r--llvm_mode/afl-clang-fast.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm_mode/afl-clang-fast.c b/llvm_mode/afl-clang-fast.c
index b322b762..d6e96558 100644
--- a/llvm_mode/afl-clang-fast.c
+++ b/llvm_mode/afl-clang-fast.c
@@ -197,8 +197,10 @@ static void edit_params(u32 argc, char** argv) {
   // /laf
 
 #ifdef USE_TRACE_PC
-  cc_params[cc_par_cnt++] =
-      "-fsanitize-coverage=trace-pc-guard";  // edge coverage by default
+  if (getenv("AFL_CMPLOG"))
+    cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard,trace-cmp";
+  else
+    cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard"; // edge coverage by default
   // cc_params[cc_par_cnt++] = "-mllvm";
   // cc_params[cc_par_cnt++] =
   // "-fsanitize-coverage=trace-cmp,trace-div,trace-gep";