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legalizevectorops
2010 May 14
3
[LLVMdev] selection dag speedups / llc speedups
Hello folks,
I'm sure this has been asked many times, but is there current work on
decreasing the time taken by the DAG-based instruction selector, or the
other phases of llc? I am just beginning to dive into LLVM, and I am
interested in compile-time reductions that do not reduce code quality
dramatically. For example, simply switching on "-fast-isel" (roughly 17%
drop in code