From ce568f5ec8de5c85c3ece55ea85246dd50452444 Mon Sep 17 00:00:00 2001
From: William Chen <william.chen@futurewei.com>
Date: Mon, 22 Aug 2022 08:38:24 -0700
Subject: [PATCH] Ebo check liveout when trying to remove move of same reg

---
 src/mapleall/maple_be/src/cg/ebo.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mapleall/maple_be/src/cg/ebo.cpp b/src/mapleall/maple_be/src/cg/ebo.cpp
index 6c14a630af..258808e83b 100644
--- a/src/mapleall/maple_be/src/cg/ebo.cpp
+++ b/src/mapleall/maple_be/src/cg/ebo.cpp
@@ -606,7 +606,7 @@ bool Ebo::ForwardPropagateOpnd(Insn &insn, Operand *&opnd, uint32 opndIndex,
   }
   /* Copies to and from the same register are not needed. */
   if (!beforeRegAlloc && Globals::GetInstance()->GetTarget()->IsEffectiveCopy(insn) && (opndIndex == kInsnSecondOpnd) &&
-      RegistersIdentical(*opnd, insn.GetOperand(kInsnFirstOpnd))) {
+      RegistersIdentical(*opnd, insn.GetOperand(kInsnFirstOpnd)) && !LiveOutOfBB(*opnd, *(insn.GetBB()))) {
     if (EBO_DUMP) {
       LogInfo::MapleLogger() << "===replace operand " << opndIndex << " of insn: \n";
       insn.Dump();
-- 
Gitee