[llvm] r288243 - [PowerPC] Preserve machine dominator tree in PPCVSXFMAMutate

[Krzysztof Parzyszek via llvm-commits]

Author: kparzysz
Date: Wed Nov 30 07:31:09 2016
New Revision: 288243

URL: http://llvm.org/viewvc/llvm-project?rev=288243&view=rev
Log:
[PowerPC] Preserve machine dominator tree in PPCVSXFMAMutate

It is needed by LiveIntervalAnalysis.

Modified:
    llvm/trunk/lib/Target/PowerPC/PPCVSXFMAMutate.cpp

Modified: llvm/trunk/lib/Target/PowerPC/PPCVSXFMAMutate.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCVSXFMAMutate.cpp?rev=288243&r1=288242&r2=288243&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCVSXFMAMutate.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCVSXFMAMutate.cpp Wed Nov 30 07:31:09 2016
@@ -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, D
                       "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)