From e67cc380a800d91297bae9e82ea3357ff39e379d Mon Sep 17 00:00:00 2001
From: Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com>
Date: Thu, 11 Jul 2019 21:19:33 +0000
Subject: [AMDGPU] gfx908 mfma support

Differential Revision: https://reviews.llvm.org/D64584

llvm-svn: 365824
---
 llvm/lib/Target/AMDGPU/GCNRegBankReassign.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/Target/AMDGPU/GCNRegBankReassign.cpp')

diff --git a/llvm/lib/Target/AMDGPU/GCNRegBankReassign.cpp b/llvm/lib/Target/AMDGPU/GCNRegBankReassign.cpp
index c3d076e95af..f0d47eaa4ed 100644
--- a/llvm/lib/Target/AMDGPU/GCNRegBankReassign.cpp
+++ b/llvm/lib/Target/AMDGPU/GCNRegBankReassign.cpp
@@ -365,6 +365,9 @@ unsigned GCNRegBankReassign::analyzeInst(const MachineInstr& MI,
       continue;
 
     unsigned R = Op.getReg();
+    if (TRI->hasAGPRs(TRI->getRegClassForReg(*MRI, R)))
+      continue;
+
     unsigned ShiftedBank = Bank;
 
     if (Bank != -1 && R == Reg && Op.getSubReg()) {
-- 
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