[llvm] [CodeGen] Remove unused InstructionMoveBefore (NFC) (PR #227586)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/227586

The last use was removed on December 15, 2023 in commit
163aeca33d4adb97e8599584409457ca14b1419b.

Assisted-by: Antigravity


>From df119e0592693355a20d4d51c4bb07c617526e40 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Tue, 29 Sep 2026 23:57:02 -0700
Subject: [PATCH] [CodeGen] Remove unused InstructionMoveBefore (NFC)

The last use was removed on December 15, 2023 in commit
163aeca33d4adb97e8599584409457ca14b1419b.

Assisted-by: Antigravity
---
 llvm/lib/CodeGen/CodeGenPrepare.cpp | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index d554a32a5d3ae..cc66634c01bdd 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -3459,27 +3459,6 @@ class TypePromotionTransaction {
     }
   };
 
-  /// Move an instruction before another.
-  class InstructionMoveBefore : public TypePromotionAction {
-    /// Original position of the instruction.
-    InsertionHandler Position;
-
-  public:
-    /// Move \p Inst before \p Before.
-    InstructionMoveBefore(Instruction *Inst, BasicBlock::iterator Before)
-        : TypePromotionAction(Inst), Position(Inst) {
-      LLVM_DEBUG(dbgs() << "Do: move: " << *Inst << "\nbefore: " << *Before
-                        << "\n");
-      Inst->moveBefore(Before);
-    }
-
-    /// Move the instruction back to its original position.
-    void undo() override {
-      LLVM_DEBUG(dbgs() << "Undo: moveBefore: " << *Inst << "\n");
-      Position.insert(Inst);
-    }
-  };
-
   /// Set the operand of an instruction with a new value.
   class OperandSetter : public TypePromotionAction {
     /// Original operand of the instruction.