From 10c42185d82c121e8f7d261decde798c05567c59 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 24 Oct 2007 18:54:28 +0000
Subject: [PATCH] add a nice predicate to check to see if nan

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43304 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/ADT/APFloat.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/llvm/ADT/APFloat.h b/include/llvm/ADT/APFloat.h
index 9037ef5f727..b605faab312 100644
--- a/include/llvm/ADT/APFloat.h
+++ b/include/llvm/ADT/APFloat.h
@@ -232,6 +232,7 @@ namespace llvm {
     const fltSemantics &getSemantics() const { return *semantics; }
     bool isZero() const { return category == fcZero; }
     bool isNonZero() const { return category != fcZero; }
+    bool isNaN() const { return category == fcNaN; }
     bool isNegative() const { return sign; }
     bool isPosZero() const { return isZero() && !isNegative(); }
     bool isNegZero() const { return isZero() && isNegative(); }