commit 7aa1c321f00d29fdc84e9a03080853aa25dd06fc
author Shuxin Yang <shuxin.llvm@gmail.com> Mon Jan 07 18:59:35 2013 +0000
committer Shuxin Yang <shuxin.llvm@gmail.com> Mon Jan 07 18:59:35 2013 +0000
tree 013045c273e9f818563d36147da2af4326e82721
parent 637582eaf77e6892094cea0bf6b9483f50b5d94e

Implement APFloat::isDenormal()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171764 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Support/APFloat.cpp

diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp
index 17f3891..0e3c619 100644
--- a/lib/Support/APFloat.cpp
+++ b/lib/Support/APFloat.cpp
@@ -697,6 +697,13 @@
 }
 
 bool
+APFloat::isDenormal() const {
+  return isNormal() && (exponent == semantics->minExponent) &&
+         (APInt::tcExtractBit(significandParts(), 
+                              semantics->precision - 1) == 0);
+}
+
+bool
 APFloat::bitwiseIsEqual(const APFloat &rhs) const {
   if (this == &rhs)
     return true;