[libFuzzer] add -print_coverage=1 flag to print coverage directly from libFuzzer
llvm-svn: 281866
diff --git a/llvm/lib/Fuzzer/test/coverage.test b/llvm/lib/Fuzzer/test/coverage.test
new file mode 100644
index 0000000..e1f542f
--- /dev/null
+++ b/llvm/lib/Fuzzer/test/coverage.test
@@ -0,0 +1,7 @@
+CHECK: COVERAGE:
+CHECK-DAG: COVERED: {{.*}}in LLVMFuzzerTestOneInput {{.*}}NullDerefTest.cpp:13
+CHECK-DAG: COVERED: {{.*}}in LLVMFuzzerTestOneInput {{.*}}NullDerefTest.cpp:14
+CHECK-DAG: COVERED: {{.*}}in LLVMFuzzerTestOneInput {{.*}}NullDerefTest.cpp:16
+CHECK-DAG: COVERED: {{.*}}in LLVMFuzzerTestOneInput {{.*}}NullDerefTest.cpp:18
+CHECK-DAG: COVERED: {{.*}}in LLVMFuzzerTestOneInput {{.*}}NullDerefTest.cpp:19
+RUN: not LLVMFuzzer-NullDerefTest-TracePC -print_coverage=1 2>&1 | FileCheck %s