From 07023fef3acd0d17af099f580d8d254e9d45eb87 Mon Sep 17 00:00:00 2001 From: Andrew Trick Date: Mon, 17 Jun 2013 21:45:07 +0000 Subject: MI-Sched: Remove another heuristic that is sensitive to queue order. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184130 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/MachineScheduler.cpp | 6 ------ 1 file changed, 6 deletions(-) (limited to 'lib/CodeGen') diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp index 5a9c4e4513..55e58969a0 100644 --- a/lib/CodeGen/MachineScheduler.cpp +++ b/lib/CodeGen/MachineScheduler.cpp @@ -2113,15 +2113,9 @@ void ConvergingScheduler::tryCandidate(SchedCandidate &Cand, return; // Weak edges are for clustering and other constraints. - // - // Deferring TryCand here does not change Cand's reason. This is good in the - // sense that a bad candidate shouldn't affect a previous candidate's - // goodness, but bad in that it is assymetric and depends on queue order. - CandReason OrigReason = Cand.Reason; if (tryLess(getWeakLeft(TryCand.SU, Zone.isTop()), getWeakLeft(Cand.SU, Zone.isTop()), TryCand, Cand, Weak)) { - Cand.Reason = OrigReason; return; } // Avoid critical resource consumption and balance the schedule. -- cgit v1.2.3