From e96b2111b1ecfda8daa101f397b44c618d472431 Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Thu, 12 Nov 2009 23:22:41 +0000
Subject: Re-enable this code, since redundant PHIs are now being better nuked.

llvm-svn: 87042
---
 llvm/lib/Transforms/Scalar/SCCVN.cpp | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'llvm/lib/Transforms')

diff --git a/llvm/lib/Transforms/Scalar/SCCVN.cpp b/llvm/lib/Transforms/Scalar/SCCVN.cpp
index 8dd718ab218..001267a7d7d 100644
--- a/llvm/lib/Transforms/Scalar/SCCVN.cpp
+++ b/llvm/lib/Transforms/Scalar/SCCVN.cpp
@@ -629,9 +629,6 @@ bool SCCVN::runOnFunction(Function& F) {
     }
   }
 
-  // FIXME: This code is commented out for now, because it can lead to the
-  // insertion of a lot of redundant PHIs being inserted by SSAUpdater.
-#if 0
   // Perform a forward data-flow to compute availability at all points on
   // the CFG.
   do {
@@ -709,7 +706,6 @@ bool SCCVN::runOnFunction(Function& F) {
       CurInst->eraseFromParent();
     }
   }
-#endif
 
   VT.clear();
   for (DenseMap<BasicBlock*, ValueNumberScope*>::iterator
-- 
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