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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2012-08-22 15:37:57 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2012-08-22 15:37:57 +0000 |
| commit | 05d96f98cbd96dab7f4ea1ea4ebe4285597e7e88 (patch) | |
| tree | b32c92e060826c319744e00e4f74a20de33ad62f /lib/CodeGen/IfConversion.cpp | |
| parent | fdeb9fe5e08146d9cb953000cb893eda80329a08 (diff) | |
Reduce duplicated hash map lookups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162362 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/IfConversion.cpp')
| -rw-r--r-- | lib/CodeGen/IfConversion.cpp | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/CodeGen/IfConversion.cpp b/lib/CodeGen/IfConversion.cpp index bab55126c2..31e36f0168 100644 --- a/lib/CodeGen/IfConversion.cpp +++ b/lib/CodeGen/IfConversion.cpp @@ -996,14 +996,13 @@ static void UpdatePredRedefs(MachineInstr *MI, SmallSet<unsigned,4> &Redefs, } for (unsigned i = 0, e = Defs.size(); i != e; ++i) { unsigned Reg = Defs[i]; - if (Redefs.count(Reg)) { + if (!Redefs.insert(Reg)) { if (AddImpUse) // Treat predicated update as read + write. MI->addOperand(MachineOperand::CreateReg(Reg, false/*IsDef*/, true/*IsImp*/,false/*IsKill*/, false/*IsDead*/,true/*IsUndef*/)); } else { - Redefs.insert(Reg); for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) Redefs.insert(*SubRegs); } |