Run computeDomForest() on the set of registers that need to be tested for

interference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44064 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 5 deletions

diff --git a/lib/CodeGen/StrongPHIElimination.cpp b/lib/CodeGen/StrongPHIElimination.cpp
index a1654de..d023b59 100644
--- a/lib/CodeGen/StrongPHIElimination.cpp
+++ b/lib/CodeGen/StrongPHIElimination.cpp
@@ -285,14 +285,15 @@ void StrongPHIElimination::processBlock(MachineBasicBlock* MBB) {
       } else {
         PHIUnion.insert(SrcReg);
         UnionedBlocks.insert(SrcInfo.DefInst->getParent());
-        
-        // DO STUFF HERE
-        
       }
-      
-      ProcessedNames.insert(PHIUnion.begin(), PHIUnion.end());
     }
     
+    std::vector<StrongPHIElimination::DomForestNode*> DF = 
+                                                     computeDomForest(PHIUnion);
+    
+    // DO STUFF HERE
+    
+    ProcessedNames.insert(PHIUnion.begin(), PHIUnion.end());
     ++P;
   }
 }