[llvm] r235332 - IR: Add ConstantFP::getNaN()

[Tom Stellard]

Author: tstellar
Date: Mon Apr 20 14:38:24 2015
New Revision: 235332

URL: http://llvm.org/viewvc/llvm-project?rev=235332&view=rev
Log:
IR: Add ConstantFP::getNaN()

This is a wrapper around APFloat::getNaN().

Modified:
    llvm/trunk/include/llvm/IR/Constants.h
    llvm/trunk/lib/IR/Constants.cpp

Modified: llvm/trunk/include/llvm/IR/Constants.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/Constants.h?rev=235332&r1=235331&r2=235332&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/Constants.h (original)
+++ llvm/trunk/include/llvm/IR/Constants.h Mon Apr 20 14:38:24 2015
@@ -251,6 +251,7 @@ public:
   static Constant *get(Type* Ty, double V);
   static Constant *get(Type* Ty, StringRef Str);
   static ConstantFP *get(LLVMContext &Context, const APFloat &V);
+  static Constant *getNaN(Type *Ty, bool Negative = false, unsigned type = 0);
   static Constant *getNegativeZero(Type *Ty);
   static Constant *getInfinity(Type *Ty, bool Negative = false);
 

Modified: llvm/trunk/lib/IR/Constants.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Constants.cpp?rev=235332&r1=235331&r2=235332&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Constants.cpp (original)
+++ llvm/trunk/lib/IR/Constants.cpp Mon Apr 20 14:38:24 2015
@@ -663,6 +663,17 @@ Constant *ConstantFP::get(Type *Ty, Stri
   return C; 
 }
 
+Constant *ConstantFP::getNaN(Type *Ty, bool Negative, unsigned Type) {
+  const fltSemantics &Semantics = *TypeToFloatSemantics(Ty->getScalarType());
+  APFloat NaN = APFloat::getNaN(Semantics, Negative, Type);
+  Constant *C = get(Ty->getContext(), NaN);
+
+  if (VectorType *VTy = dyn_cast<VectorType>(Ty))
+    return ConstantVector::getSplat(VTy->getNumElements(), C);
+
+  return C;
+}
+
 Constant *ConstantFP::getNegativeZero(Type *Ty) {
   const fltSemantics &Semantics = *TypeToFloatSemantics(Ty->getScalarType());
   APFloat NegZero = APFloat::getZero(Semantics, /*Negative=*/true);