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Benjamin Kramer
d18bd5e885
post-ra-sched: Replace a std::set of regs with a bitvector.
Assuming that a single std::set node adds 3 control words, a bitvector can store (3*8+4)*8=224 registers in the allocated memory of a single element in the std::set (x86_64). Also we don't have to call malloc for every register added. llvm-svn: 151269
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