[LLVMdev] -O2, -O3 in JIT

[Mark Shannon]

Hi,

Does anyone know an easy way to do same optimisations as 'opt -O2' or 'opt -O3' in the JIT.

I can do the tedious way:

  pass_manager->add(createInstructionCombiningPass());
  pass_manager->add(createGVNPass());
  etc.
  etc.

but I would rather reuse the code in 'opt' to manage the passes.

Cheers, 
Mark.
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