Added command-line option to output llvm-cov to file.

Added -o option to llvm-cov. If no output file is specified, it defaults
to STDOUT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193899 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 1 deletions

diff --git a/tools/llvm-cov/llvm-cov.cpp b/tools/llvm-cov/llvm-cov.cpp
index 4a69c71..ad6c671 100644
--- a/tools/llvm-cov/llvm-cov.cpp
+++ b/tools/llvm-cov/llvm-cov.cpp
@@ -17,6 +17,7 @@
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/MemoryObject.h"
 #include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/system_error.h"
 using namespace llvm;
@@ -30,6 +31,9 @@ InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init(""));
 static cl::opt<std::string>
 InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init(""));
 
+static cl::opt<std::string>
+OutputFile("o", cl::desc("<output llvm-cov file>"), cl::init("-"));
+
 
 //===----------------------------------------------------------------------===//
 int main(int argc, char **argv) {
@@ -40,6 +44,11 @@ int main(int argc, char **argv) {
 
   cl::ParseCommandLineOptions(argc, argv, "llvm coverage tool\n");
 
+  std::string ErrorInfo;
+  raw_fd_ostream OS(OutputFile.c_str(), ErrorInfo);
+  if (!ErrorInfo.empty())
+    errs() << ErrorInfo << "\n";
+
   GCOVFile GF;
   if (InputGCNO.empty())
     errs() << " " << argv[0] << ": No gcov input file!\n";
@@ -74,6 +83,6 @@ int main(int argc, char **argv) {
 
   FileInfo FI;
   GF.collectLineCounts(FI);
-  FI.print(InputGCNO, InputGCDA);
+  FI.print(OS, InputGCNO, InputGCDA);
   return 0;
 }