[LiveInterval] Fix live range overlap check

Reviewed By: MatzeB

Differential Revision: https://reviews.llvm.org/D145707

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/LiveInterval.cpp b/llvm/lib/CodeGen/LiveInterval.cpp
index 7cd3d26..1cf3543 100644
--- a/llvm/lib/CodeGen/LiveInterval.cpp
+++ b/llvm/lib/CodeGen/LiveInterval.cpp
@@ -445,7 +445,7 @@ bool LiveRange::overlaps(const LiveRange &Other, const CoalescerPair &CP,
 
   while (true) {
     // J has just been advanced to satisfy:
-    assert(J->end >= I->start);
+    assert(J->end > I->start);
     // Check for an overlap.
     if (J->start < I->end) {
       // I and J are overlapping. Find the later start.
@@ -460,11 +460,11 @@ bool LiveRange::overlaps(const LiveRange &Other, const CoalescerPair &CP,
       std::swap(I, J);
       std::swap(IE, JE);
     }
-    // Advance J until J->end >= I->start.
+    // Advance J until J->end > I->start.
     do
       if (++J == JE)
         return false;
-    while (J->end < I->start);
+    while (J->end <= I->start);
   }
 }