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	for opt_* insns.
opt_eq handles rb_obj_equal inside opt_eq, and all other cfunc is
handled by opt_send_without_block. Therefore we can't decide which insn
should be generated by checking whether it's cfunc cc or not.
```
$ benchmark-driver -v --rbenv 'before --jit;after --jit' benchmark/mjit_opt_cc_insns.yml --repeat-count=4
before --jit: ruby 2.8.0dev (2020-06-26T05:21:43Z master 9dbc2294a6) +JIT [x86_64-linux]
after --jit: ruby 2.8.0dev (2020-06-26T06:30:18Z master 75cece1b0b) +JIT [x86_64-linux]
last_commit=Decide JIT-ed insn based on cached cfunc
Calculating -------------------------------------
                     before --jit  after --jit
        mjit_nil?(1)      73.878M      74.021M i/s -     40.000M times in 0.541432s 0.540391s
         mjit_not(1)      72.635M      74.601M i/s -     40.000M times in 0.550702s 0.536187s
     mjit_eq(1, nil)       7.331M       7.445M i/s -      8.000M times in 1.091211s 1.074596s
     mjit_eq(nil, 1)      49.450M      64.711M i/s -      8.000M times in 0.161781s 0.123627s
Comparison:
                     mjit_nil?(1)
         after --jit:  74020528.4 i/s
        before --jit:  73878185.9 i/s - 1.00x  slower
                      mjit_not(1)
         after --jit:  74600882.0 i/s
        before --jit:  72634507.6 i/s - 1.03x  slower
                  mjit_eq(1, nil)
         after --jit:   7444657.4 i/s
        before --jit:   7331304.3 i/s - 1.02x  slower
                  mjit_eq(nil, 1)
         after --jit:  64710790.6 i/s
        before --jit:  49449507.4 i/s - 1.31x  slower
```
		
	
			
		
			
				
	
	
		
			27 lines
		
	
	
	
		
			492 B
		
	
	
	
		
			YAML
		
	
	
	
	
	
			
		
		
	
	
			27 lines
		
	
	
	
		
			492 B
		
	
	
	
		
			YAML
		
	
	
	
	
	
# opt_* insns using vm_method_cfunc_is with send-compatible operands:
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#   * opt_nil_p
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#   * opt_not
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#   * opt_eq
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type: lib/benchmark_driver/runner/mjit
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prelude: |
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  def mjit_nil?(obj)
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    obj.nil?
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  end
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  def mjit_not(obj)
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    !obj
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  end
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  def mjit_eq(a, b)
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    a == b
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  end
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benchmark:
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  - script: mjit_nil?(1)
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    loop_count: 40000000
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  - script: mjit_not(1)
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    loop_count: 40000000
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  - script: mjit_eq(1, nil)
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    loop_count: 8000000
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  - script: mjit_eq(nil, 1)
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    loop_count: 8000000
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