From 7b3dcced70be227bb43e71d84d11a2f15fb25072 Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Wed, 26 Aug 2026 17:55:16 +0800
Subject: [RISCV] Implement push-pop optimization

---
 backend/lib/CodeGen/MachinePseudoExpansion.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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

diff --git a/backend/lib/CodeGen/MachinePseudoExpansion.cpp b/backend/lib/CodeGen/MachinePseudoExpansion.cpp
index 3d169cc..67a8ef8 100644
--- a/backend/lib/CodeGen/MachinePseudoExpansion.cpp
+++ b/backend/lib/CodeGen/MachinePseudoExpansion.cpp
@@ -328,7 +328,8 @@ expandImplementation(MachineFunction &Function, const TargetDescription &Target,
                             "pseudo expansion left an instruction owned by the completed phase");
     }
   }
-  if (Changed && Function.properties().has(MachineFunctionProperty::TracksLiveness)) {
+  if (Changed && Phase != MachinePseudoExpansionPhase::PostRA &&
+      Function.properties().has(MachineFunctionProperty::TracksLiveness)) {
     auto Rebuilt = rebuildMachineLiveness(Function, Target);
     if (!Rebuilt)
       return std::unexpected(Rebuilt.error());
-- 
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