Method: LLVM::PassBuilder#o!

Defined in:
lib/llvm/pass_builder.rb

#o!(opt_level = '0', options = {}) ⇒ Object

–O0 - Optimization level 0. Similar to clang -O0. Use -passes=‘default<O0>’ for the new PM –O1 - Optimization level 1. Similar to clang -O1. Use -passes=‘default<O1>’ for the new PM –O2 - Optimization level 2. Similar to clang -O2. Use -passes=‘default<O2>’ for the new PM –O3 - Optimization level 3. Similar to clang -O3. Use -passes=‘default<O3>’ for the new PM –Os - Like -O2 but size-conscious. Similar to clang -Os. Use -passes=‘default<Os>’ for the new PM –Oz - Like -O2 but optimize for code size above all else. Similar to clang -Oz. Use -passes=‘default<Oz>’ for the new PM

Returns:

  • self



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# File 'lib/llvm/pass_builder.rb', line 45

def o!(opt_level = '0', options = {})
  opt_level = opt_level.to_s
  expanded_pass = OPT_PASSES[opt_level]

  if expanded_pass.nil?
    return add_pass("default<O#{opt_level}>")
  end

  if options[:disable_inline]
    expanded_pass = expanded_pass.gsub('devirt<4>(inline,', 'devirt<4>(')
  end
  if options[:disable_always_inline]
    expanded_pass = expanded_pass.gsub('always-inline,', '')
  end
  add_pass(expanded_pass)
end