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/MachineTailDuplication.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

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

diff --git a/backend/lib/CodeGen/MachineTailDuplication.cpp b/backend/lib/CodeGen/MachineTailDuplication.cpp
index a130680..40d448f 100644
--- a/backend/lib/CodeGen/MachineTailDuplication.cpp
+++ b/backend/lib/CodeGen/MachineTailDuplication.cpp
@@ -286,7 +286,8 @@ MachineTailDuplicationPass::runImplementation(MachineFunction &Function,
       Tail = Next;
       continue;
     }
-    const std::size_t Cost = (*Candidate)->Body.size() + 1U;
+    const auto &TailCandidate = Candidate->value();
+    const std::size_t Cost = TailCandidate.Body.size() + 1U;
     const std::vector<MachineBasicBlock *> Predecessors(Tail->predecessors().begin(),
                                                         Tail->predecessors().end());
     for (MachineBasicBlock *Predecessor : Predecessors) {
@@ -296,7 +297,7 @@ MachineTailDuplicationPass::runImplementation(MachineFunction &Function,
         break;
       }
       auto Duplicated =
-          duplicateTailIntoPredecessor(**Candidate, *Tail, *Predecessor, Function, Target, *Info);
+          duplicateTailIntoPredecessor(TailCandidate, *Tail, *Predecessor, Function, Target, *Info);
       if (!Duplicated)
         return std::unexpected(Duplicated.error());
       if (!*Duplicated)
-- 
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