[Mono-bugs] [Bug 61641][Wis] Changed - Bad register allocation with `if' statements

bugzilla-daemon@bugzilla.ximian.com bugzilla-daemon@bugzilla.ximian.com
Fri, 16 Jul 2004 22:30:44 -0400 (EDT)

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Changed by bmaurer@users.sf.net.


--- shadow/61641	2004-07-16 22:28:54.000000000 -0400
+++ shadow/61641.tmp.5661	2004-07-16 22:30:44.000000000 -0400
@@ -606,6 +606,18 @@
 get the right order. Maybe i did it wrong.
 ------- Additional Comments From bmaurer@users.sf.net  2004-07-16 22:28 -------
 Created an attachment (id=8614)
 my (failed) attempt to do the gcc method
+------- Additional Comments From bmaurer@users.sf.net  2004-07-16 22:30 -------
+An interesting quote from gcc:
+In order to reach (the best possible) O(N+2) with N == maximal number of
+backedges in a acyclic path, one needs to use reverse completion order
+(the second argument of flow_depth_first_order_compute), _not_ DFS order.
+So using a (correct ;-) reverse completion order would make liveness
+faster as well as more precise.