llvm-project/llvm/lib/CodeGen/MachineInstr.cpp at 658839bafdcb6a687fc683fd8ccc3cb76bae43c7

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Chris Lattner ce64eddb71 - Two minor improvements to the MachineInstr class to reduce footprint and

overhead: Merge 3 parallel vectors into 1, change regsUsed hash_set to be a
    bitvector.  Sped up LLC a little less than 10% in a debug build!

llvm-svn: 4261

2002-10-22 23:16:21 +00:00

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