[sanitizer] findPath for deadlock detector

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@201306 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/sanitizer_common/sanitizer_bitvector.h b/lib/sanitizer_common/sanitizer_bitvector.h
index da9082f0b..5def7e1e6 100644
--- a/lib/sanitizer_common/sanitizer_bitvector.h
+++ b/lib/sanitizer_common/sanitizer_bitvector.h
@@ -56,6 +56,8 @@ class BasicBitVector {
     return bits_ != old;
   }
 
+  void copyFrom(const BasicBitVector &v) { bits_ = v.bits_; }
+
   // Returns true if 'this' intersects with 'v'.
   bool intersectsWith(const BasicBitVector &v) const { return bits_ & v.bits_; }
 
@@ -165,6 +167,11 @@ class TwoLevelBitVector {
     return res;
   }
 
+  void copyFrom(const TwoLevelBitVector &v) {
+    clear();
+    setUnion(v);
+  }
+
   // Returns true if 'this' intersects with 'v'.
   bool intersectsWith(const TwoLevelBitVector &v) const {
     for (uptr i0 = 0; i0 < kLevel1Size; i0++) {