Clarify comments in genLoopLimit.
llvm-svn: 193292
diff --git a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
index 9c092e6..7785855 100644
--- a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -1506,9 +1506,10 @@
// BECount = (IVEnd - IVInit - 1) => IVLimit = IVInit (postinc).
//
// Valid Cases: (1) both integers is most common; (2) both may be pointers
- // for simple memset-style loops; (3) IVInit is an integer and IVCount is a
- // pointer may occur when enable-iv-rewrite generates a canonical IV on top
- // of case #2.
+ // for simple memset-style loops.
+ //
+ // IVInit integer and IVCount pointer would only occur if a canonical IV
+ // were generated on top of case #2, which is not expected.
const SCEV *IVLimit = 0;
// For unit stride, IVCount = Start + BECount with 2's complement overflow.