diff options
| author | Owen Anderson <resistor@mac.com> | 2008-08-14 23:41:38 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2008-08-14 23:41:38 +0000 |
| commit | bbf55832831482a73fa59fcd1746f9272e82a144 (patch) | |
| tree | cc575b6bf9148fcc55df4d1795597229e4e0de2c /lib/CodeGen/LiveVariables.cpp | |
| parent | 0d9deac4850230c2b54b1d693ccd9f1fdb8c998a (diff) | |
Use SmallSet instead of std::set to save allocations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54810 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveVariables.cpp')
| -rw-r--r-- | lib/CodeGen/LiveVariables.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp index dbe650c0af..00a5869cc1 100644 --- a/lib/CodeGen/LiveVariables.cpp +++ b/lib/CodeGen/LiveVariables.cpp @@ -221,7 +221,7 @@ void LiveVariables::HandlePhysRegUse(unsigned Reg, MachineInstr *MI) { LastPartialDef->addOperand(MachineOperand::CreateReg(Reg, true/*IsDef*/, true/*IsImp*/)); PhysRegDef[Reg] = LastPartialDef; - std::set<unsigned> Processed; + SmallSet<unsigned, 8> Processed; for (const unsigned *SubRegs = TRI->getSubRegisters(Reg); unsigned SubReg = *SubRegs; ++SubRegs) { if (Processed.count(SubReg)) @@ -351,7 +351,7 @@ bool LiveVariables::HandlePhysRegKill(unsigned Reg) { // AX<dead> = AL<imp-def> // = AL<kill> // AX = - std::set<unsigned> PartUses; + SmallSet<unsigned, 8> PartUses; for (const unsigned *SubRegs = TRI->getSubRegisters(Reg); unsigned SubReg = *SubRegs; ++SubRegs) { if (MachineInstr *Use = PhysRegUse[SubReg]) { @@ -437,7 +437,7 @@ void LiveVariables::HandlePhysRegDef(unsigned Reg, MachineInstr *MI) { if (MI) { // Does this extend the live range of a super-register? - std::set<unsigned> Processed; + SmallSet<unsigned, 8> Processed; for (const unsigned *SuperRegs = TRI->getSuperRegisters(Reg); unsigned SuperReg = *SuperRegs; ++SuperRegs) { if (Processed.count(SuperReg)) |