[libfuzzer] fixing collected pc addresses for coverage

Summary: The causes google/ossfuzz#84

Reviewers: kcc

Subscribers: mgorny

Differential Revision: https://reviews.llvm.org/D28827

llvm-svn: 292289
diff --git a/llvm/lib/Fuzzer/test/dump_coverage.test b/llvm/lib/Fuzzer/test/dump_coverage.test
index 9bd98da..a168b5b 100644
--- a/llvm/lib/Fuzzer/test/dump_coverage.test
+++ b/llvm/lib/Fuzzer/test/dump_coverage.test
@@ -2,12 +2,14 @@
 RUN: BUILD_DIR=$(pwd)
 RUN: rm -rf $DIR && mkdir -p $DIR && cd $DIR
 RUN: not $BUILD_DIR/LLVMFuzzer-NullDerefTest -dump_coverage=1 2>&1 | FileCheck %s
+RUN: sancov -covered-functions *.sancov $BUILD_DIR/LLVMFuzzer-NullDerefTest | FileCheck %s --check-prefix=SANCOV
 RUN: $BUILD_DIR/LLVMFuzzer-DSOTest -dump_coverage=1 -runs=0 2>&1 | FileCheck %s --check-prefix=DSO
 RUN: not $BUILD_DIR/LLVMFuzzer-NullDerefTest -dump_coverage=0 2>&1 | FileCheck %s --check-prefix=NOCOV
 RUN: rm -rf $DIR
 
 
 CHECK: SanitizerCoverage: ./LLVMFuzzer-NullDerefTest.{{.*}}.sancov {{.*}} PCs written
+SANCOV: LLVMFuzzerTestOneInput
 
 DSO: SanitizerCoverage: ./LLVMFuzzer-DSOTest.{{.*}}.sancov {{.*}} PCs written
 DSO-DAG: SanitizerCoverage: ./libLLVMFuzzer-DSO1.{{.*}}.sancov {{.*}} PCs written