RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.6/changes.html,v
retrieving revision 1.50
@@ -106,6 +106,14 @@
+ <li>A new warning, enabled by <code>-Wno-double-promotion</code>,
+ has been added that warns about cases where a value of type
+ <code>float</code> is implicitly promoted to <code>double</code>.
+ This is especially helpful for CPUs that handle the former in
+ hardware, but emulate the latter in software.</li>