From ec2945d031b6648e43630e720f38cfb3cf7ff715 Mon Sep 17 00:00:00 2001
From: Sumanth Gundapaneni <sgundapa@quicinc.com>
Date: Fri, 7 Jan 2022 14:42:54 -0800
Subject: [PATCH] [Hexagon] Reconize M2_mnaci in HexagonBitTracker

---
 llvm/lib/Target/Hexagon/HexagonBitTracker.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/llvm/lib/Target/Hexagon/HexagonBitTracker.cpp b/llvm/lib/Target/Hexagon/HexagonBitTracker.cpp
index 1938a5c..8e014b3 100644
--- a/llvm/lib/Target/Hexagon/HexagonBitTracker.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonBitTracker.cpp
@@ -493,6 +493,11 @@ bool HexagonEvaluator::evaluate(const MachineInstr &MI,
       RegisterCell RC = eADD(rc(1), lo(M, W0));
       return rr0(RC, Outputs);
     }
+    case M2_mnaci: {
+      RegisterCell M = eMLS(rc(2), rc(3));
+      RegisterCell RC = eSUB(rc(1), lo(M, W0));
+      return rr0(RC, Outputs);
+    }
     case M2_mpysmi: {
       RegisterCell M = eMLS(rc(1), eIMM(im(2), W0));
       return rr0(lo(M, 32), Outputs);
-- 
2.7.4