From cc7a6d269170cc3668caa4f5af29228920e8d7a7 Mon Sep 17 00:00:00 2001
From: Tom Stellard <thomas.stellard@amd.com>
Date: Thu, 24 May 2012 13:42:23 -0400
Subject: [PATCH] radeon/llvm: Avoid error with SI in
 EmitInstrWithCustomInserter()

We need to return immediately after inserting instructions that require
S_WAITCNT so that the parent class' custom inserter won't try to insert
them again.
---
 src/gallium/drivers/radeon/SIISelLowering.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/drivers/radeon/SIISelLowering.cpp b/src/gallium/drivers/radeon/SIISelLowering.cpp
index e176defcf5d..4615db24266 100644
--- a/src/gallium/drivers/radeon/SIISelLowering.cpp
+++ b/src/gallium/drivers/radeon/SIISelLowering.cpp
@@ -39,6 +39,7 @@ MachineBasicBlock * SITargetLowering::EmitInstrWithCustomInserter(
 
   if (TII->get(MI->getOpcode()).TSFlags & SIInstrFlags::NEED_WAIT) {
     AppendS_WAITCNT(MI, *BB, llvm::next(I));
+    return BB;
   }
 
   switch (MI->getOpcode()) {
-- 
2.30.2