[mips][msa] copyPhysReg() should not set RegState::Define on result of CTCMSA.

Summary:
The machine verifier reports 'Explicit operand marked as def' when it is
manually specified even though it agrees with the operand info.

Reviewers: sdardis

Subscribers: dsanders, sdardis, llvm-commits

Differential Revision: http://reviews.llvm.org/D21065

llvm-svn: 272646

1 files changed, 5 insertions, 2 deletions

diff --git a/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp b/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
index 270a95a87a9..5c8f6cd1ab1 100644
--- a/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
+++ b/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
@@ -129,9 +129,12 @@ void MipsSEInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
         .addReg(SrcReg, getKillRegState(KillSrc)).addImm(1 << 4)
         .addReg(DestReg, RegState::ImplicitDefine);
       return;
+    } else if (Mips::MSACtrlRegClass.contains(DestReg)) {
+      BuildMI(MBB, I, DL, get(Mips::CTCMSA))
+          .addReg(DestReg)
+          .addReg(SrcReg, getKillRegState(KillSrc));
+      return;
     }
-    else if (Mips::MSACtrlRegClass.contains(DestReg))
-      Opc = Mips::CTCMSA;
   }
   else if (Mips::FGR32RegClass.contains(DestReg, SrcReg))
     Opc = Mips::FMOV_S;