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authorRafael Espindola <rafael.espindola@gmail.com>2011-06-24 14:04:13 +0000
committerRafael Espindola <rafael.espindola@gmail.com>2011-06-24 14:04:13 +0000
commit1f71549a2ef24fc5d0fc9f0bb3b49fda770fe3d2 (patch)
tree6354c8b2868be1a0122208650a6628e06946a78c /lib/CodeGen/TailDuplication.cpp
parentce117be633ae705f0d5be92dee099eb8db1a9844 (diff)
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Simplify now that blocks with phis are not considered simple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133793 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/TailDuplication.cpp')
-rw-r--r--lib/CodeGen/TailDuplication.cpp15
1 files changed, 0 insertions, 15 deletions
diff --git a/lib/CodeGen/TailDuplication.cpp b/lib/CodeGen/TailDuplication.cpp
index 3111d5931f..33795c3acb 100644
--- a/lib/CodeGen/TailDuplication.cpp
+++ b/lib/CodeGen/TailDuplication.cpp
@@ -659,21 +659,6 @@ TailDuplicatePass::duplicateSimpleBB(MachineBasicBlock *TailBB,
MachineBasicBlock *NewTarget = *TailBB->succ_begin();
MachineBasicBlock *NextBB = llvm::next(MachineFunction::iterator(PredBB));
- DenseMap<unsigned, unsigned> LocalVRMap;
- SmallVector<std::pair<unsigned,unsigned>, 4> CopyInfos;
- for (MachineBasicBlock::iterator I = TailBB->begin();
- I != TailBB->end() && I->isPHI();) {
- MachineInstr *MI = &*I;
- ++I;
- ProcessPHI(MI, TailBB, PredBB, LocalVRMap, CopyInfos, UsedByPhi, true);
- }
- MachineBasicBlock::iterator Loc = PredBB->getFirstTerminator();
- for (unsigned i = 0, e = CopyInfos.size(); i != e; ++i) {
- Copies.push_back(BuildMI(*PredBB, Loc, DebugLoc(),
- TII->get(TargetOpcode::COPY),
- CopyInfos[i].first).addReg(CopyInfos[i].second));
- }
-
// Make PredFBB explicit.
if (PredCond.empty())
PredFBB = PredTBB;