X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FSupport%2FAPFloat.cpp;h=cc86e795e7927e6616b05b0441bd3a66f062a099;hb=e6be34a53ecbe8c2ff9f0793b13d847e94c0de91;hp=04e99149bb853a5d3c3205f7054678659a8502fd;hpb=b10abe1e8c19f60191dd7afa50f8c623e2b8f041;p=oota-llvm.git

diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp
index 04e99149bb8..cc86e795e79 100644
--- a/lib/Support/APFloat.cpp
+++ b/lib/Support/APFloat.cpp
@@ -13,6 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/APFloat.h"
+#include "llvm/ADT/FoldingSet.h"
 #include <cassert>
 #include <cstring>
 #include "llvm/Support/MathExtras.h"
@@ -691,6 +692,11 @@ APFloat::~APFloat()
   freeSignificand();
 }
 
+// Profile - This method 'profiles' an APFloat for use with FoldingSet.
+void APFloat::Profile(FoldingSetNodeID& ID) const {
+  ID.Add(convertToAPInt());
+}
+
 unsigned int
 APFloat::partCount() const
 {
@@ -1712,6 +1718,8 @@ APFloat::convert(const fltSemantics &toSemantics,
     fs = normalize(rounding_mode, lostFraction);
   } else if (category == fcNaN) {
     int shift = toSemantics.precision - semantics->precision;
+    // Do this now so significandParts gets the right answer
+    semantics = &toSemantics;
     // No normalization here, just truncate
     if (shift>0)
       APInt::tcShiftLeft(significandParts(), newPartCount, shift);
@@ -1721,7 +1729,6 @@ APFloat::convert(const fltSemantics &toSemantics,
     // does not give you back the same bits.  This is dubious, and we
     // don't currently do it.  You're really supposed to get
     // an invalid operation signal at runtime, but nobody does that.
-    semantics = &toSemantics;
     fs = opOK;
   } else {
     semantics = &toSemantics;