[IRBuilder] Update IRBuilder::CreateFNeg(...) to return a UnaryOperator

Also update Clang to call Builder.CreateFNeg(...) for UnaryMinus.

Differential Revision: https://reviews.llvm.org/D61675

llvm-svn: 374240

1 files changed, 15 insertions, 0 deletions

diff --git a/llvm/unittests/IR/InstructionsTest.cpp b/llvm/unittests/IR/InstructionsTest.cpp
index afd579400ff..5595e8ce93c 100644
--- a/llvm/unittests/IR/InstructionsTest.cpp
+++ b/llvm/unittests/IR/InstructionsTest.cpp
@@ -1115,5 +1115,20 @@ if.end:
   EXPECT_EQ(ArgBA->getBasicBlock(), &IfThen);
 }
 
+TEST(InstructionsTest, UnaryOperator) {
+  LLVMContext Context;
+  IRBuilder<> Builder(Context);
+  Instruction *I = Builder.CreatePHI(Builder.getDoubleTy(), 0);
+  Value *F = Builder.CreateFNeg(I);
+
+  EXPECT_TRUE(isa<Value>(F));
+  EXPECT_TRUE(isa<Instruction>(F));
+  EXPECT_TRUE(isa<UnaryInstruction>(F));
+  EXPECT_TRUE(isa<UnaryOperator>(F));
+  EXPECT_FALSE(isa<BinaryOperator>(F));
+
+  F->deleteValue();
+}
+
 } // end anonymous namespace
 } // end namespace llvm