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

llvm-svn: 184712

1 files changed, 16 insertions, 0 deletions

diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp
index db1d61c2813..ec50064f42f 100644
--- a/llvm/lib/Support/APFloat.cpp
+++ b/llvm/lib/Support/APFloat.cpp
@@ -3827,3 +3827,19 @@ APFloat::opStatus APFloat::next(bool nextDown) {
 
   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());  
+}