From: Dan Gohman <gohman@apple.com>
Date: Fri, 21 Nov 2008 02:38:21 +0000 (+0000)
Subject: Set the isAntiDep flag in the MachineInstr scheduler.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f6b7a47d5d6e2703591b95b10b2c5be5b5fd09cd;p=oota-llvm.git

Set the isAntiDep flag in the MachineInstr scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59787 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp
index ec8fc66a3ee..c83af095d08 100644
--- a/lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/lib/CodeGen/ScheduleDAGInstrs.cpp
@@ -53,7 +53,7 @@ void ScheduleDAGInstrs::BuildSchedUnits() {
       // Optionally add output and anti dependences.
       if (Def && Def != SU)
         Def->addPred(SU, /*isCtrl=*/true, /*isSpecial=*/false,
-                     /*PhyReg=*/Reg, Cost);
+                     /*PhyReg=*/Reg, Cost, /*isAntiDep=*/MO.isUse());
       for (const unsigned *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias) {
         SUnit *&Def = Defs[*Alias];
         if (Def && Def != SU)