diff --git a/unittests/VMCore/IRBuilderTest.cpp b/unittests/VMCore/IRBuilderTest.cpp
index affd7b0fb16..8a22b104ba6 100644
--- a/unittests/VMCore/IRBuilderTest.cpp
+++ b/unittests/VMCore/IRBuilderTest.cpp
@@ -111,61 +111,6 @@ TEST_F(IRBuilderTest, GetIntTy) {
   EXPECT_EQ(IntPtrTy, IntegerType::get(getGlobalContext(), IntPtrBitSize));
 }
 
-TEST_F(IRBuilderTest, FastMathFlags) {
-  IRBuilder<> Builder(BB);
-  Value *F;
-  Instruction *FDiv, *FAdd;
-
-  F = Builder.CreateLoad(GV);
-  F = Builder.CreateFAdd(F, F);
-
-  EXPECT_FALSE(Builder.GetFastMathFlags().any());
-  ASSERT_TRUE(isa<Instruction>(F));
-  FAdd = cast<Instruction>(F);
-  EXPECT_FALSE(FAdd->hasNoNaNs());
-
-  FastMathFlags FMF;
-  Builder.SetFastMathFlags(FMF);
-
-  F = Builder.CreateFAdd(F, F);
-  EXPECT_FALSE(Builder.GetFastMathFlags().any());
-
-  FMF.UnsafeAlgebra = true;
-  Builder.SetFastMathFlags(FMF);
-
-  F = Builder.CreateFAdd(F, F);
-  EXPECT_TRUE(Builder.GetFastMathFlags().any());
-  ASSERT_TRUE(isa<Instruction>(F));
-  FAdd = cast<Instruction>(F);
-  EXPECT_TRUE(FAdd->hasNoNaNs());
-
-  F = Builder.CreateFDiv(F, F);
-  EXPECT_TRUE(Builder.GetFastMathFlags().any());
-  EXPECT_TRUE(Builder.GetFastMathFlags().UnsafeAlgebra);
-  ASSERT_TRUE(isa<Instruction>(F));
-  FDiv = cast<Instruction>(F);
-  EXPECT_TRUE(FDiv->hasAllowReciprocal());
-
-  Builder.ClearFastMathFlags();
-
-  F = Builder.CreateFDiv(F, F);
-  ASSERT_TRUE(isa<Instruction>(F));
-  FDiv = cast<Instruction>(F);
-  EXPECT_FALSE(FDiv->hasAllowReciprocal());
-
-  FMF.clear();
-  FMF.AllowReciprocal = true;
-  Builder.SetFastMathFlags(FMF);
-
-  F = Builder.CreateFDiv(F, F);
-  EXPECT_TRUE(Builder.GetFastMathFlags().any());
-  EXPECT_TRUE(Builder.GetFastMathFlags().AllowReciprocal);
-  ASSERT_TRUE(isa<Instruction>(F));
-  FDiv = cast<Instruction>(F);
-  EXPECT_TRUE(FDiv->hasAllowReciprocal());
-
-}
-
 TEST_F(IRBuilderTest, FastMathFlags) {
   IRBuilder<> Builder(BB);
   Value *F;