Simplify code. No functionality change.

-3% on ARMDissasembler.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145773 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index a2e81344d429d1cc8df854f0da1e6951ea0e6658..956b7065a9585028c18907c4d9093d3bbf7183c0 100644 (file)
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -498,8 +498,7 @@ MachineInstr *findLocalKill(unsigned Reg, MachineBasicBlock *MBB,
     MachineInstr *UseMI = &*UI;
     if (UseMI == MI || UseMI->getParent() != MBB)
       continue;
-    DenseMap<MachineInstr*, unsigned>::iterator DI = DistanceMap.find(UseMI);
-    if (DI != DistanceMap.end())
+    if (DistanceMap.count(UseMI))
       continue;
     if (!UI.getOperand().isKill())
       return 0;