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author | Rafael Espindola <rafael.espindola@gmail.com> | 2011-06-24 14:04:13 +0000 |
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committer | Rafael Espindola <rafael.espindola@gmail.com> | 2011-06-24 14:04:13 +0000 |
commit | 1f71549a2ef24fc5d0fc9f0bb3b49fda770fe3d2 (patch) | |
tree | 6354c8b2868be1a0122208650a6628e06946a78c /lib/CodeGen/TailDuplication.cpp | |
parent | ce117be633ae705f0d5be92dee099eb8db1a9844 (diff) | |
download | llvm-1f71549a2ef24fc5d0fc9f0bb3b49fda770fe3d2.tar.gz llvm-1f71549a2ef24fc5d0fc9f0bb3b49fda770fe3d2.tar.bz2 llvm-1f71549a2ef24fc5d0fc9f0bb3b49fda770fe3d2.tar.xz |
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.cpp | 15 |
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; |