commit b468709c917c27059100dc77e6c3b024bdfc3484
author Eli Friedman <eli.friedman@gmail.com> Tue Jul 14 02:01:53 2009 +0000
committer Eli Friedman <eli.friedman@gmail.com> Tue Jul 14 02:01:53 2009 +0000
tree 8c962aabe75753871da0ec47899860eb9fa521fc
parent f6bc4ae4a1a2dbf986099ab7b74106e8d273cbe1

Fix trivial todo in instcombine.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75586 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/InstructionCombining.cpp

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 838b33c..864b2fa 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -2702,7 +2702,8 @@
                  Context->getConstantInt(Op0->getType(), Val.logBase2()));
       }
     } else if (isa<VectorType>(Op1->getType())) {
-      // TODO: If Op1 is all zeros and Op0 is all finite, return all zeros.
+      if (Op1->isNullValue())
+        return ReplaceInstUsesWith(I, Op1);
 
       if (ConstantVector *Op1V = dyn_cast<ConstantVector>(Op1)) {
         if (Op1V->isAllOnesValue())              // X * -1 == 0 - X