There is no need to check to see if j overflowed in this loop as we're only

incrementing i.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17944 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index 80a6ed290c..54e460f7b4 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -82,7 +82,9 @@ bool LiveInterval::overlapsFrom(const LiveInterval& other,
     return true;
   }
 
-  while (i != ie && j != je) {
+  if (j == je) return false;
+
+  while (i != ie) {
     if (i->start > j->start) {
       std::swap(i, j);
       std::swap(ie, je);