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

incrementing i.

llvm-svn: 17944

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/LiveInterval.cpp b/llvm/lib/CodeGen/LiveInterval.cpp
index 80a6ed290c7..54e460f7b46 100644
--- a/llvm/lib/CodeGen/LiveInterval.cpp
+++ b/llvm/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);