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| author | David Goodwin <david_goodwin@apple.com> | 2009-11-12 19:08:21 +0000 |
|---|---|---|
| committer | David Goodwin <david_goodwin@apple.com> | 2009-11-12 19:08:21 +0000 |
| commit | 12dd99dc308150a6beff32aafc824e1d6fec1139 (patch) | |
| tree | eb3d33bed5ca1f1a02cf1b69a12e4748ed96a268 /lib/CodeGen/AggressiveAntiDepBreaker.cpp | |
| parent | 70d75ca3107ce05bc30ad3511aa669b9fab5eb90 (diff) | |
| download | llvm-12dd99dc308150a6beff32aafc824e1d6fec1139.tar.gz llvm-12dd99dc308150a6beff32aafc824e1d6fec1139.tar.bz2 llvm-12dd99dc308150a6beff32aafc824e1d6fec1139.tar.xz | |
Rename registers to break output dependencies in addition to anti-dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87015 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AggressiveAntiDepBreaker.cpp')
| -rw-r--r-- | lib/CodeGen/AggressiveAntiDepBreaker.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/AggressiveAntiDepBreaker.cpp b/lib/CodeGen/AggressiveAntiDepBreaker.cpp index 17b50bd955..b8cea27e51 100644 --- a/lib/CodeGen/AggressiveAntiDepBreaker.cpp +++ b/lib/CodeGen/AggressiveAntiDepBreaker.cpp @@ -285,7 +285,7 @@ static void AntiDepPathStep(SUnit *SU, AntiDepBreaker::AntiDepRegVector& Regs, for (SUnit::pred_iterator P = SU->Preds.begin(), PE = SU->Preds.end(); P != PE; ++P) { - if (P->getKind() == SDep::Anti) { + if ((P->getKind() == SDep::Anti) || (P->getKind() == SDep::Output)) { unsigned Reg = P->getReg(); if (RegSet.count(Reg) != 0) { Edges.push_back(&*P); @@ -716,7 +716,8 @@ unsigned AggressiveAntiDepBreaker::BreakAntiDependencies( SDep *Edge = Edges[i]; SUnit *NextSU = Edge->getSUnit(); - if (Edge->getKind() != SDep::Anti) continue; + if ((Edge->getKind() != SDep::Anti) && + (Edge->getKind() != SDep::Output)) continue; unsigned AntiDepReg = Edge->getReg(); DEBUG(errs() << "\tAntidep reg: " << TRI->getName(AntiDepReg)); |