commit 7e0e166d1783671e555eff26b9932012fadea691
author Nick Lewycky <nicholas@mxc.ca> Fri Sep 28 09:33:53 2012 +0000
committer Nick Lewycky <nicholas@mxc.ca> Fri Sep 28 09:33:53 2012 +0000
tree 7be7078bad57bde7d4b8c9044f0bf35aa75ad074
parent 8bb12aeeb4f38f62f2d97618d0c688f47c9bd972

Surprisingly, we missed a trivial case here. Fix that!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164814 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/InstCombine/InstCombineSelect.cpp

diff --git a/lib/Transforms/InstCombine/InstCombineSelect.cpp b/lib/Transforms/InstCombine/InstCombineSelect.cpp
index 70483ce..0ba7340 100644
--- a/lib/Transforms/InstCombine/InstCombineSelect.cpp
+++ b/lib/Transforms/InstCombine/InstCombineSelect.cpp
@@ -930,6 +930,10 @@
       Value *V = Builder->CreateShuffleVector(TrueVal, FalseVal, MaskVal);
       return ReplaceInstUsesWith(SI, V);
     }
+
+    if (isa<ConstantAggregateZero>(CondVal)) {
+      return ReplaceInstUsesWith(SI, FalseVal);
+    }
   }
 
   return 0;