[llvm] r183072 - APFloat: Use isDenormal instead of hand-rolled code to check for denormals.

[Benjamin Kramer]

Author: d0k
Date: Sat Jun  1 06:26:33 2013
New Revision: 183072

URL: http://llvm.org/viewvc/llvm-project?rev=183072&view=rev
Log:
APFloat: Use isDenormal instead of hand-rolled code to check for denormals.

Modified:
    llvm/trunk/lib/Support/APFloat.cpp

Modified: llvm/trunk/lib/Support/APFloat.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APFloat.cpp?rev=183072&r1=183071&r2=183072&view=diff
==============================================================================
--- llvm/trunk/lib/Support/APFloat.cpp (original)
+++ llvm/trunk/lib/Support/APFloat.cpp Sat Jun  1 06:26:33 2013
@@ -3683,7 +3683,7 @@ bool APFloat::getExactInverse(APFloat *i
 
   // Avoid multiplication with a denormal, it is not safe on all platforms and
   // may be slower than a normal division.
-  if (reciprocal.significandMSB() + 1 < reciprocal.semantics->precision)
+  if (reciprocal.isDenormal())
     return false;
 
   assert(reciprocal.category == fcNormal &&