From 7bf26c1d68f75de9c1c8520620228b016bf9a0eb Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Thu, 15 Feb 2007 19:09:36 +0000
Subject: [PATCH] BitVector::count() bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34314 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/ADT/BitVector.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/llvm/ADT/BitVector.h b/include/llvm/ADT/BitVector.h
index a6ae1ac80d5..03789aa4ffb 100644
--- a/include/llvm/ADT/BitVector.h
+++ b/include/llvm/ADT/BitVector.h
@@ -101,7 +101,12 @@ public:
   unsigned count() const {
     unsigned NumBits = 0;
     for (unsigned i = 0; i < NumBitWords(size()); ++i)
-      NumBits = CountPopulation_32(Bits[i]);
+      if (sizeof(BitWord) == 4)
+        NumBits += CountPopulation_32(Bits[i]);
+      else if (sizeof(BitWord) == 8)
+        NumBits += CountPopulation_64(Bits[i]);
+      else
+        assert(0 && "Unsupported!")
     return NumBits;
   }