From adcf8c9b1bd1b47e00bf859693112cea1f7e8c9f Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Mon, 10 Aug 2026 20:36:50 +0800
Subject: [Tooling] Complete backend tooling and validation

---
 backend/lib/CodeGen/MachineStackSlotColoring.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'backend/lib/CodeGen/MachineStackSlotColoring.cpp')

diff --git a/backend/lib/CodeGen/MachineStackSlotColoring.cpp b/backend/lib/CodeGen/MachineStackSlotColoring.cpp
index b3b9af5..e60a7a2 100644
--- a/backend/lib/CodeGen/MachineStackSlotColoring.cpp
+++ b/backend/lib/CodeGen/MachineStackSlotColoring.cpp
@@ -178,7 +178,7 @@ collectSlotUses(MachineFunction &Function) {
 [[nodiscard]] bool intervalsOverlap(const SlotInterval &Left, const SlotInterval &Right) noexcept {
   if (Left.Block != Right.Block)
     return true;
-  return !(Left.Last < Right.First || Right.Last < Left.First);
+  return Left.Last >= Right.First && Right.Last >= Left.First;
 }
 
 struct StackColor final {
-- 
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