[llvm] r362828 - [IR] Add UnaryOperator::CreateFNegFMF(...)

[Cameron McInally via llvm-commits]

Author: mcinally
Date: Fri Jun  7 11:59:51 2019
New Revision: 362828

URL: http://llvm.org/viewvc/llvm-project?rev=362828&view=rev
Log:
[IR] Add UnaryOperator::CreateFNegFMF(...)

Differential Revision: https://reviews.llvm.org/D62705

Modified:
    llvm/trunk/include/llvm/IR/InstrTypes.h
    llvm/trunk/unittests/IR/InstructionsTest.cpp

Modified: llvm/trunk/include/llvm/IR/InstrTypes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/InstrTypes.h?rev=362828&r1=362827&r2=362828&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/InstrTypes.h (original)
+++ llvm/trunk/include/llvm/IR/InstrTypes.h Fri Jun  7 11:59:51 2019
@@ -154,6 +154,20 @@ public:
   }
 #include "llvm/IR/Instruction.def"
 
+  static UnaryOperator *CreateWithCopiedFlags(UnaryOps Opc,
+                                              Value *V,
+                                              Instruction *CopyO,
+                                              const Twine &Name = "") {
+    UnaryOperator *UO = Create(Opc, V, Name);
+    UO->copyIRFlags(CopyO);
+    return UO;
+  }
+
+  static UnaryOperator *CreateFNegFMF(Value *Op, Instruction *FMFSource,
+                                      const Twine &Name = "") {
+    return CreateWithCopiedFlags(Instruction::FNeg, Op, FMFSource, Name);
+  }
+
   UnaryOps getOpcode() const {
     return static_cast<UnaryOps>(Instruction::getOpcode());
   }
@@ -269,7 +283,7 @@ public:
   static BinaryOperator *CreateFNegFMF(Value *Op, Instruction *FMFSource,
                                        const Twine &Name = "") {
     Value *Zero = ConstantFP::getNegativeZero(Op->getType());
-    return CreateWithCopiedFlags(Instruction::FSub, Zero, Op, FMFSource);
+    return CreateWithCopiedFlags(Instruction::FSub, Zero, Op, FMFSource, Name);
   }
 
   static BinaryOperator *CreateNSW(BinaryOps Opc, Value *V1, Value *V2,

Modified: llvm/trunk/unittests/IR/InstructionsTest.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/IR/InstructionsTest.cpp?rev=362828&r1=362827&r2=362828&view=diff
==============================================================================
--- llvm/trunk/unittests/IR/InstructionsTest.cpp (original)
+++ llvm/trunk/unittests/IR/InstructionsTest.cpp Fri Jun  7 11:59:51 2019
@@ -1081,5 +1081,23 @@ TEST(InstructionsTest, PhiIsNotFPMathOpe
   I->deleteValue();
 }
 
+TEST(InstructionsTest, FNegInstruction) {
+  LLVMContext Context;
+  Type *FltTy = Type::getFloatTy(Context);
+  Constant *One = ConstantFP::get(FltTy, 1.0);
+  BinaryOperator *FAdd = BinaryOperator::CreateFAdd(One, One);
+  FAdd->setHasNoNaNs(true);
+  UnaryOperator *FNeg = UnaryOperator::CreateFNegFMF(One, FAdd);
+  EXPECT_TRUE(FNeg->hasNoNaNs());
+  EXPECT_FALSE(FNeg->hasNoInfs());
+  EXPECT_FALSE(FNeg->hasNoSignedZeros());
+  EXPECT_FALSE(FNeg->hasAllowReciprocal());
+  EXPECT_FALSE(FNeg->hasAllowContract());
+  EXPECT_FALSE(FNeg->hasAllowReassoc());
+  EXPECT_FALSE(FNeg->hasApproxFunc());
+  FAdd->deleteValue();
+  FNeg->deleteValue();
+}
+
 } // end anonymous namespace
 } // end namespace llvm