From e72ad2cd524ff38f162a23d69da5f78494d337ae Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Fri, 28 Aug 2026 13:45:07 +0800
Subject: [CodeGen] Centralize machine instruction erasure

---
 backend/lib/CodeGen/MachineInstr.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

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

diff --git a/backend/lib/CodeGen/MachineInstr.cpp b/backend/lib/CodeGen/MachineInstr.cpp
index 55b4ce9..3b200c5 100644
--- a/backend/lib/CodeGen/MachineInstr.cpp
+++ b/backend/lib/CodeGen/MachineInstr.cpp
@@ -43,6 +43,12 @@ Expected<void> MachineInstr::setOpcode(Opcode NewOpcode) {
   return {};
 }
 
+Expected<void> MachineInstr::eraseFromParent() {
+  if (ParentBlock == nullptr)
+    return makeUnexpected(ErrorCode::InternalError, "cannot erase a detached machine instruction");
+  return ParentBlock->removeInstruction(*this);
+}
+
 Expected<void> MachineInstr::setDebugInstrNumber(std::uint64_t Number) {
   if (Number == 0 || Number > std::numeric_limits<std::uint32_t>::max()) {
     return makeUnexpected(ErrorCode::InvalidArgument,
-- 
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