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Differences for revision 1.19 from 1.18


--- todo.mdwn	2014/07/28 14:36:15	1.18
+++ todo.mdwn	2014/07/31 19:35:58	1.19
@@ -26,6 +26,7 @@
 - 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.
+  The SU calculations should also be better in understanding specific instruction needs.  Use pre-calculated values in external.c?
 
 GCC compatibility:
 

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