Fix a typo that several people pointed out. Also, address the case of
wrapping that Duncan pointed out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94547 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/ConstantRange.cpp b/lib/Support/ConstantRange.cpp
index e9ddffc..2746f7a 100644
--- a/lib/Support/ConstantRange.cpp
+++ b/lib/Support/ConstantRange.cpp
@@ -540,8 +540,10 @@
ConstantRange
ConstantRange::multiply(const ConstantRange &Other) const {
- // TODO: If either operand is a single element, round the result min anx
- // max value to the appropriate multiple of that element.
+ // TODO: If either operand is a single element and the multiply is known to
+ // be non-wrapping, round the result min and max value to the appropriate
+ // multiple of that element. If wrapping is possible, at least adjust the
+ // range according to the greatest power-of-two factor of the single element.
if (isEmptySet() || Other.isEmptySet())
return ConstantRange(getBitWidth(), /*isFullSet=*/false);