[compiler-rt] r196112 - [sanitizer] Allow InternalMmapVector construction with zero capacity.

[Sergey Matveev]

Author: smatveev
Date: Mon Dec  2 09:41:04 2013
New Revision: 196112

URL: http://llvm.org/viewvc/llvm-project?rev=196112&view=rev
Log:
[sanitizer] Allow InternalMmapVector construction with zero capacity.

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h?rev=196112&r1=196111&r2=196112&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h Mon Dec  2 09:41:04 2013
@@ -320,8 +320,7 @@ template<typename T>
 class InternalMmapVector {
  public:
   explicit InternalMmapVector(uptr initial_capacity) {
-    CHECK_GT(initial_capacity, 0);
-    capacity_ = initial_capacity;
+    capacity_ = Min(initial_capacity, (uptr)1);
     size_ = 0;
     data_ = (T *)MmapOrDie(capacity_ * sizeof(T), "InternalMmapVector");
   }