Fix llvm-cov counts to be 64-bit integers to avoid overflows.

Line counts in llvm-cov are read in as 64-bit integers but were being truncated
to 32-bit in collectLineCounts(), which caused overflow for large counts.
This patch fixes all counts to be uint64_t.

Patch by Yuchen Wu!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193172 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 3 deletions

diff --git a/include/llvm/Support/GCOV.h b/include/llvm/Support/GCOV.h
index 67d6370..aa436fb 100644
--- a/include/llvm/Support/GCOV.h
+++ b/include/llvm/Support/GCOV.h
@@ -205,17 +205,17 @@ class GCOVLines {
 public:
   ~GCOVLines() { Lines.clear(); }
   void add(uint32_t N) { Lines.push_back(N); }
-  void collectLineCounts(FileInfo &FI, StringRef Filename, uint32_t Count);
+  void collectLineCounts(FileInfo &FI, StringRef Filename, uint64_t Count);
   void dump();
 
 private:
   SmallVector<uint32_t, 4> Lines;
 };
 
-typedef SmallVector<uint32_t, 16> LineCounts;
+typedef SmallVector<uint64_t, 16> LineCounts;
 class FileInfo {
 public:
-  void addLineCount(StringRef Filename, uint32_t Line, uint32_t Count);
+  void addLineCount(StringRef Filename, uint32_t Line, uint64_t Count);
   void print(StringRef gcnoFile, StringRef gcdaFile);
 private:
   StringMap<LineCounts> LineInfo;