Update comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8965 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp
index 48c116d5f35ab6fe427f260f1c151b299532aba0..3effa66eefef774ccbe2e0cde04db8b6298f360d 100644 (file)
--- a/lib/Transforms/Scalar/SCCP.cpp
+++ b/lib/Transforms/Scalar/SCCP.cpp
@@ -170,8 +170,8 @@ private:
                       << " -> " << Dest->getName() << "\n");
 
       // The destination is already executable, but we just made an edge
-      // feasible that wasn't before.  Add the PHI nodes to the work list so
-      // that they can be rechecked.
+      // feasible that wasn't before.  Revisit the PHI nodes in the block
+      // because they have potentially new operands.
       for (BasicBlock::iterator I = Dest->begin();
            PHINode *PN = dyn_cast<PHINode>(I); ++I)
         visitPHINode(*PN);