[llvm] MIPS: Fix unsigned compare with zero in MipsSEInstrInfo::copyPhysReg (PR #179866)

[YunQiang Su via llvm-commits]

https://github.com/wzssyqa updated https://github.com/llvm/llvm-project/pull/179866

>From 7805aa877ef210b878b549c353be12eb27c8ef01 Mon Sep 17 00:00:00 2001
From: YunQiang Su <yunqiang at isrc.iscas.ac.cn>
Date: Thu, 5 Feb 2026 13:35:46 +0800
Subject: [PATCH] MIPS: Fix unsigned compare with zero in
 MipsSEInstrInfo::copyPhysReg

SrcRegOff >= 0 is not needed at all for unsigned.
---
 llvm/lib/Target/Mips/MipsSEInstrInfo.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp b/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
index bf8c3cc46f550..39ae73c704ca7 100644
--- a/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
+++ b/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
@@ -242,7 +242,7 @@ void MipsSEInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
       Opc = Mips::FMOV_D64;
       unsigned DestRegOff = DestReg.id() - Mips::D0_64;
       unsigned SrcRegOff = SrcReg.id() - Mips::F0;
-      if (SrcRegOff == DestRegOff && SrcRegOff >= 0 && SrcRegOff <= 31)
+      if (SrcRegOff == DestRegOff && SrcRegOff <= 31)
         return;
     }
   } else if (Opc == 0 && Mips::FGR32RegClass.contains(DestReg) &&
@@ -253,7 +253,7 @@ void MipsSEInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
       Opc = Mips::FMOV_D32;
       unsigned DestRegOff = DestReg.id() - Mips::F0;
       unsigned SrcRegOff = SrcReg.id() - Mips::D0_64;
-      if (SrcRegOff == DestRegOff && SrcRegOff >= 0 && SrcRegOff <= 31)
+      if (SrcRegOff == DestRegOff && SrcRegOff <= 31)
         return;
     }
   }