Amend comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24861 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
index efaf73c573f0ac2c47d0eb6425f7dad0b53243fd..49977b24f7c774a8f578dbaad896eb19da3a1ec0 100644 (file)
--- a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
@@ -860,7 +860,8 @@ void SimpleSched::PrepareNodeInfo() {
 /// isStrongDependency - Return true if node A has results used by node B. 
 /// I.E., B must wait for latency of A.
 bool SimpleSched::isStrongDependency(NodeInfo *A, NodeInfo *B) {
-  // If A defines for B then it's a strong dependency
+  // If A defines for B then it's a strong dependency or
+  // if a load follows a store (may be dependent but why take a chance.)
   return isDefiner(A, B) || (A->IsStore && B->IsLoad);
 }