From: Krzysztof Parzyszek <kparzysz@codeaurora.org>
Date: Wed, 30 Nov 2016 13:31:09 +0000 (+0000)
Subject: [PowerPC] Preserve machine dominator tree in PPCVSXFMAMutate
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=398063c8f7c0a3ad63315a6b644580c8b436d6a3;p=llvm

[PowerPC] Preserve machine dominator tree in PPCVSXFMAMutate

It is needed by LiveIntervalAnalysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288243 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCVSXFMAMutate.cpp b/lib/Target/PowerPC/PPCVSXFMAMutate.cpp
index abaf632d50a..f6d20ced15a 100644
--- a/lib/Target/PowerPC/PPCVSXFMAMutate.cpp
+++ b/lib/Target/PowerPC/PPCVSXFMAMutate.cpp
@@ -21,6 +21,7 @@
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/CodeGen/LiveIntervalAnalysis.h"
+#include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
@@ -374,6 +375,8 @@ public:
       AU.addPreserved<LiveIntervals>();
       AU.addRequired<SlotIndexes>();
       AU.addPreserved<SlotIndexes>();
+      AU.addRequired<MachineDominatorTree>();
+      AU.addPreserved<MachineDominatorTree>();
       MachineFunctionPass::getAnalysisUsage(AU);
     }
   };
@@ -383,6 +386,7 @@ INITIALIZE_PASS_BEGIN(PPCVSXFMAMutate, DEBUG_TYPE,
                       "PowerPC VSX FMA Mutation", false, false)
 INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
 INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
+INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
 INITIALIZE_PASS_END(PPCVSXFMAMutate, DEBUG_TYPE,
                     "PowerPC VSX FMA Mutation", false, false)