Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161956 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp
index 84021de..b42a168 100644
--- a/lib/Support/APFloat.cpp
+++ b/lib/Support/APFloat.cpp
@@ -1774,7 +1774,7 @@
// precision of our format, and then subtract it back off again. The choice
// of rounding modes for the addition/subtraction determines the rounding mode
// for our integral rounding as well.
- // NOTE: When the input value is negative, we do subtractation followed by
+ // NOTE: When the input value is negative, we do subtraction followed by
// addition instead.
APInt IntegerConstant(NextPowerOf2(semanticsPrecision(*semantics)), 1);
IntegerConstant <<= semanticsPrecision(*semantics)-1;