From 0dc24902b4d01b939160946098a8a3bb404b9d73 Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Wed, 19 Aug 2026 17:21:10 +0800
Subject: [CodeGen] Remove unsupported post-frame combiner

---
 backend/lib/CodeGen/MachineOptimizationPipeline.cpp | 4 ----
 1 file changed, 4 deletions(-)

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

diff --git a/backend/lib/CodeGen/MachineOptimizationPipeline.cpp b/backend/lib/CodeGen/MachineOptimizationPipeline.cpp
index 4d20f9a..f3ce86d 100644
--- a/backend/lib/CodeGen/MachineOptimizationPipeline.cpp
+++ b/backend/lib/CodeGen/MachineOptimizationPipeline.cpp
@@ -103,10 +103,6 @@ addPostRegisterAllocationPipeline(MachineFunctionPassManager &Pipeline,
   if (!Added)
     return std::unexpected(Added.error());
   Added = addPass<PrologueEpilogueInsertionPass>(Pipeline, TargetInfo.FrameLowering);
-  if (!Added)
-    return std::unexpected(Added.error());
-  Added =
-      addPass<MachineCombinerPass>(Pipeline, TargetInfo.Combiner, MachineCombinerStage::PostFrame);
   if (!Added)
     return std::unexpected(Added.error());
   Added = addPass<MachineDCEPass>(Pipeline);
-- 
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