From f29db275b2c1fef8ffdee057af01509bd6dd6a45 Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Wed, 22 Aug 2012 15:37:57 +0000 Subject: Reduce duplicated hash map lookups. llvm-svn: 162362 --- llvm/lib/CodeGen/BranchFolding.cpp | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'llvm/lib/CodeGen/BranchFolding.cpp') diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp index fb65bb7f3fa..7df0e15292a 100644 --- a/llvm/lib/CodeGen/BranchFolding.cpp +++ b/llvm/lib/CodeGen/BranchFolding.cpp @@ -1554,8 +1554,7 @@ MachineBasicBlock::iterator findHoistingInsertPosAndDeps(MachineBasicBlock *MBB, for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) Uses.insert(*AI); } else { - if (Uses.count(Reg)) { - Uses.erase(Reg); + if (Uses.erase(Reg)) { for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) Uses.erase(*SubRegs); // Use sub-registers to be conservative } -- cgit v1.2.3