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Differences for revision 1.18 from 1.17


--- todo.mdwn	2014/05/30 12:37:44	1.17
+++ todo.mdwn	2014/07/28 14:36:15	1.18
@@ -25,6 +25,8 @@
 
 - Let register allocator coalesce registers with multiple classes if they carry the same type.
 
+- Make the Sethi-Ullman computation clever enough to understand paired registers, like long long on i386.  This will help on targets with few registers.
+
 GCC compatibility:
 
 - PCC has GCC compatibility enabled by default, but there are a number of language constructs that may not be fully implemented, like attributes. 

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