[llvm] [AMDGPU] Remove unnecessary untieRegOperand (PR #107695)

[Jay Foad via llvm-commits]

https://github.com/jayfoad created https://github.com/llvm/llvm-project/pull/107695

As far as I can tell, V_SET_INACTIVE has never had tied operands.


>From c1e106c4c5906be587933739e19370d0716dd0f3 Mon Sep 17 00:00:00 2001
From: Jay Foad <jay.foad at amd.com>
Date: Sat, 7 Sep 2024 13:15:25 +0100
Subject: [PATCH] [AMDGPU] Remove unnecessary untieRegOperand

As far as I can tell, V_SET_INACTIVE has never had tied operands.
---
 llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp b/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
index bc4b1936cb7e38..f9d7ead4ff3ecc 100644
--- a/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
+++ b/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
@@ -1534,7 +1534,6 @@ bool SIWholeQuadMode::lowerCopyInstrs() {
       if (MI->getOperand(2).isReg())
         RecomputeReg = MI->getOperand(2).getReg();
       MI->removeOperand(2);
-      MI->untieRegOperand(1);
     } else {
       assert(MI->getNumExplicitOperands() == 2);
     }