Change llvm-cov output formatting to be more similar to gcov.

- Replaced tabs with proper padding
- print() takes two arguments, which are the GCNO and GCDA filenames
- Files are listed at the top of output, appended by line 0
- Stripped strings of trailing \0s
- Removed last two lines of whitespace in output

Patch by Yuchen Wu!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193148 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/include/llvm/Support/GCOV.h b/include/llvm/Support/GCOV.h
index f1040f545c..67d637021a 100644
--- a/include/llvm/Support/GCOV.h
+++ b/include/llvm/Support/GCOV.h
@@ -145,7 +145,7 @@ public:
     uint32_t Len = readInt() * 4;
     StringRef Str = Buffer->getBuffer().slice(Cursor, Cursor+Len);
     Cursor += Len;
-    return Str;
+    return Str.split('\0').first;
   }
 
   uint64_t getCursor() const { return Cursor; }
@@ -216,7 +216,7 @@ typedef SmallVector<uint32_t, 16> LineCounts;
 class FileInfo {
 public:
   void addLineCount(StringRef Filename, uint32_t Line, uint32_t Count);
-  void print();
+  void print(StringRef gcnoFile, StringRef gcdaFile);
 private:
   StringMap<LineCounts> LineInfo;
 };