[llvm] [MCP] Enhance MCP copy Instruction removal for special case (PR #70778)

[Matt Arsenault via llvm-commits]

================
@@ -735,6 +736,27 @@ void MachineCopyPropagation::ForwardCopyPropagateBlock(MachineBasicBlock &MBB) {
         MCRegister Def = RegDef.asMCReg();
         MCRegister Src = RegSrc.asMCReg();
 
+        // Target may lost some opportunity to further remove the redundant
----------------
arsenm wrote:

Typo s/lost/lose/

https://github.com/llvm/llvm-project/pull/70778