[llvm] r184712 - [APFloat] Added make{Zero, Inf} methods and implemented get{Zero, Inf} on top of them.

[Michael Gottesman]

Author: mgottesman
Date: Mon Jun 24 04:58:02 2013
New Revision: 184712

URL: http://llvm.org/viewvc/llvm-project?rev=184712&view=rev
Log:
[APFloat] Added make{Zero,Inf} methods and implemented get{Zero,Inf} on top of them.

Modified:
    llvm/trunk/include/llvm/ADT/APFloat.h
    llvm/trunk/lib/Support/APFloat.cpp

Modified: llvm/trunk/include/llvm/ADT/APFloat.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/APFloat.h?rev=184712&r1=184711&r2=184712&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/APFloat.h (original)
+++ llvm/trunk/include/llvm/ADT/APFloat.h Mon Jun 24 04:58:02 2013
@@ -211,14 +211,18 @@ public:
   ///
   /// \param Negative True iff the number should be negative.
   static APFloat getZero(const fltSemantics &Sem, bool Negative = false) {
-    return APFloat(Sem, fcZero, Negative);
+    APFloat Val(Sem, uninitialized);
+    Val.makeZero(Negative);
+    return Val;
   }
 
   /// Factory for Positive and Negative Infinity.
   ///
   /// \param Negative True iff the number should be negative.
   static APFloat getInf(const fltSemantics &Sem, bool Negative = false) {
-    return APFloat(Sem, fcInfinity, Negative);
+    APFloat Val(Sem, uninitialized);
+    Val.makeInf(Negative);
+    return Val;
   }
 
   /// Factory for QNaN values.
@@ -498,6 +502,8 @@ private:
   void makeNaN(bool SNaN = false, bool Neg = false, const APInt *fill = 0);
   static APFloat makeNaN(const fltSemantics &Sem, bool SNaN, bool Negative,
                          const APInt *fill);
+  void makeInf(bool Neg = false);
+  void makeZero(bool Neg = false);
 
   /// @}
 

Modified: llvm/trunk/lib/Support/APFloat.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APFloat.cpp?rev=184712&r1=184711&r2=184712&view=diff
==============================================================================
--- llvm/trunk/lib/Support/APFloat.cpp (original)
+++ llvm/trunk/lib/Support/APFloat.cpp Mon Jun 24 04:58:02 2013
@@ -3827,3 +3827,19 @@ APFloat::opStatus APFloat::next(bool nex
 
   return result;
 }
+
+void
+APFloat::makeInf(bool Negative) {
+  category = fcInfinity;
+  sign = Negative;
+  exponent = semantics->maxExponent + 1;
+  APInt::tcSet(significandParts(), 0, partCount());
+}
+
+void
+APFloat::makeZero(bool Negative) {
+  category = fcZero;
+  sign = Negative;
+  exponent = semantics->minExponent-1;
+  APInt::tcSet(significandParts(), 0, partCount());  
+}