From 93e65ea733b2450e41d787d3f597fa8ccdfa23f0 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Wed, 22 Feb 2017 21:16:41 +0000
Subject: AMDGPU: Don't look at chain users when adjusting writemask

Fixes not adjusting using new intrinsics with chains.

llvm-svn: 295878
---
 llvm/lib/Target/AMDGPU/SIISelLowering.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 83ee856b4fe..7243b813d62 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -4487,6 +4487,10 @@ void SITargetLowering::adjustWritemask(MachineSDNode *&Node,
   for (SDNode::use_iterator I = Node->use_begin(), E = Node->use_end();
        I != E; ++I) {
 
+    // Don't look at users of the chain.
+    if (I.getUse().getResNo() != 0)
+      continue;
+
     // Abort if we can't understand the usage
     if (!I->isMachineOpcode() ||
         I->getMachineOpcode() != TargetOpcode::EXTRACT_SUBREG)
-- 
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