mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-06-29 09:29:31 +00:00
642 lines
24 KiB
Plaintext
642 lines
24 KiB
Plaintext
Inlined call call __init
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CONTROL FLOW GRAPH SSA
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void main()
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main: scope:[main] from __start::@1
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main::$0 = main::x1 - main::x0
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main::xd#0 = main::$0
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main::$1 = main::y1 - main::y0
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main::yd#0 = main::$1
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main::x#0 = main::x0
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main::y#0 = main::y0
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main::$2 = main::yd#0 / 2
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main::e#0 = main::$2
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main::$3 = main::y#0 * $28
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main::$4 = SCREEN + main::$3
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main::$5 = main::$4 + main::x#0
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main::cursor#0 = main::$5
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to:main::@1
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main::@1: scope:[main] from main main::@2
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main::y#3 = phi( main/main::y#0, main::@2/main::y#4 )
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main::xd#1 = phi( main/main::xd#0, main::@2/main::xd#3 )
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main::yd#1 = phi( main/main::yd#0, main::@2/main::yd#2 )
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main::e#3 = phi( main/main::e#0, main::@2/main::e#5 )
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main::x#2 = phi( main/main::x#0, main::@2/main::x#3 )
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main::cursor#3 = phi( main/main::cursor#0, main::@2/main::cursor#5 )
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*main::cursor#3 = STAR
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main::$6 = main::x#2 + 1
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main::x#1 = main::$6
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main::$7 = main::cursor#3 + 1
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main::cursor#1 = main::$7
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main::$8 = main::e#3 + main::yd#1
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main::e#1 = main::$8
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main::$9 = main::xd#1 <= main::e#1
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main::$10 = ! main::$9
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if(main::$10) goto main::@2
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to:main::@3
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main::@2: scope:[main] from main::@1 main::@3
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main::y#4 = phi( main::@1/main::y#3, main::@3/main::y#1 )
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main::xd#3 = phi( main::@1/main::xd#1, main::@3/main::xd#2 )
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main::yd#2 = phi( main::@1/main::yd#1, main::@3/main::yd#3 )
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main::e#5 = phi( main::@1/main::e#1, main::@3/main::e#2 )
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main::cursor#5 = phi( main::@1/main::cursor#1, main::@3/main::cursor#2 )
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main::x#3 = phi( main::@1/main::x#1, main::@3/main::x#4 )
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main::$14 = main::x1 + 1
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main::$15 = main::x#3 < main::$14
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if(main::$15) goto main::@1
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to:main::@return
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main::@3: scope:[main] from main::@1
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main::yd#3 = phi( main::@1/main::yd#1 )
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main::x#4 = phi( main::@1/main::x#1 )
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main::xd#2 = phi( main::@1/main::xd#1 )
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main::e#4 = phi( main::@1/main::e#1 )
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main::cursor#4 = phi( main::@1/main::cursor#1 )
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main::y#2 = phi( main::@1/main::y#3 )
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main::$11 = main::y#2 + 1
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main::y#1 = main::$11
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main::$12 = main::cursor#4 + $28
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main::cursor#2 = main::$12
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main::$13 = main::e#4 - main::xd#2
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main::e#2 = main::$13
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to:main::@2
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main::@return: scope:[main] from main::@2
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return
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to:@return
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void __start()
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__start: scope:[__start] from
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to:__start::__init1
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__start::__init1: scope:[__start] from __start
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to:__start::@1
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__start::@1: scope:[__start] from __start::__init1
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call main
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to:__start::@2
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__start::@2: scope:[__start] from __start::@1
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to:__start::@return
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__start::@return: scope:[__start] from __start::@2
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return
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to:@return
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SYMBOL TABLE SSA
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const byte* SCREEN[$28*$19] = (byte*)$400
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const byte STAR = $51
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void __start()
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void main()
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byte~ main::$0
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byte~ main::$1
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bool~ main::$10
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number~ main::$11
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byte*~ main::$12
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byte~ main::$13
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number~ main::$14
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bool~ main::$15
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number~ main::$2
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number~ main::$3
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byte*~ main::$4
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byte*~ main::$5
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number~ main::$6
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byte*~ main::$7
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byte~ main::$8
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bool~ main::$9
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byte* main::cursor
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byte* main::cursor#0
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byte* main::cursor#1
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byte* main::cursor#2
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byte* main::cursor#3
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byte* main::cursor#4
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byte* main::cursor#5
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byte main::e
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byte main::e#0
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byte main::e#1
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byte main::e#2
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byte main::e#3
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byte main::e#4
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byte main::e#5
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byte main::x
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byte main::x#0
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byte main::x#1
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byte main::x#2
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byte main::x#3
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byte main::x#4
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const byte main::x0 = 4
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const byte main::x1 = $27
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byte main::xd
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byte main::xd#0
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byte main::xd#1
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byte main::xd#2
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byte main::xd#3
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byte main::y
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byte main::y#0
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byte main::y#1
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byte main::y#2
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byte main::y#3
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byte main::y#4
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const byte main::y0 = 4
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const byte main::y1 = $18
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byte main::yd
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byte main::yd#0
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byte main::yd#1
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byte main::yd#2
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byte main::yd#3
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Adding number conversion cast (unumber) 2 in main::$2 = main::yd#0 / 2
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Adding number conversion cast (unumber) main::$2 in main::$2 = main::yd#0 / (unumber)2
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Adding number conversion cast (unumber) $28 in main::$3 = main::y#0 * $28
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Adding number conversion cast (unumber) main::$3 in main::$3 = main::y#0 * (unumber)$28
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Adding number conversion cast (unumber) 1 in main::$6 = main::x#2 + 1
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Adding number conversion cast (unumber) main::$6 in main::$6 = main::x#2 + (unumber)1
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Adding number conversion cast (unumber) 1 in main::$7 = main::cursor#3 + 1
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Adding number conversion cast (unumber) 1 in main::$14 = main::x1 + 1
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Adding number conversion cast (unumber) main::$14 in main::$14 = main::x1 + (unumber)1
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Adding number conversion cast (unumber) 1 in main::$11 = main::y#2 + 1
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Adding number conversion cast (unumber) main::$11 in main::$11 = main::y#2 + (unumber)1
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Adding number conversion cast (unumber) $28 in main::$12 = main::cursor#4 + $28
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant pointer cast (byte*) 1024
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Simplifying constant integer cast 2
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Simplifying constant integer cast $28
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Simplifying constant integer cast 1
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Simplifying constant integer cast 1
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Simplifying constant integer cast 1
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Simplifying constant integer cast 1
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Simplifying constant integer cast $28
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) 2
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Finalized unsigned number type (byte) $28
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Finalized unsigned number type (byte) 1
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Finalized unsigned number type (byte) 1
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Finalized unsigned number type (byte) 1
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Finalized unsigned number type (byte) 1
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Finalized unsigned number type (byte) $28
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Inferred type updated to byte in main::$2 = main::yd#0 / 2
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Inferred type updated to byte in main::$3 = main::y#0 * $28
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Inferred type updated to byte in main::$6 = main::x#2 + 1
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Inferred type updated to byte in main::$14 = main::x1 + 1
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Inferred type updated to byte in main::$11 = main::y#2 + 1
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Inversing boolean not [21] main::$10 = main::xd#1 > main::e#1 from [20] main::$9 = main::xd#1 <= main::e#1
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Successful SSA optimization Pass2UnaryNotSimplification
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Alias main::xd#0 = main::$0
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Alias main::yd#0 = main::$1
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Alias main::e#0 = main::$2
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Alias main::cursor#0 = main::$5
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Alias main::x#1 = main::$6 main::x#4
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Alias main::cursor#1 = main::$7 main::cursor#4
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Alias main::e#1 = main::$8 main::e#4
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Alias main::y#2 = main::y#3
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Alias main::xd#1 = main::xd#2
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Alias main::yd#1 = main::yd#3
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Alias main::y#1 = main::$11
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Alias main::cursor#2 = main::$12
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Alias main::e#2 = main::$13
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Successful SSA optimization Pass2AliasElimination
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Alias main::x#1 = main::x#3
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Alias main::yd#1 = main::yd#2
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Alias main::xd#1 = main::xd#3
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Successful SSA optimization Pass2AliasElimination
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Identical Phi Values main::yd#1 main::yd#0
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Identical Phi Values main::xd#1 main::xd#0
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Successful SSA optimization Pass2IdenticalPhiElimination
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Simple Condition main::$10 [14] if(main::xd#0>main::e#1) goto main::@2
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Simple Condition main::$15 [18] if(main::x#1<main::$14) goto main::@1
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Successful SSA optimization Pass2ConditionalJumpSimplification
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Constant right-side identified [0] main::xd#0 = main::x1 - main::x0
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Constant right-side identified [1] main::yd#0 = main::y1 - main::y0
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Constant right-side identified [16] main::$14 = main::x1 + 1
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Successful SSA optimization Pass2ConstantRValueConsolidation
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Constant main::xd#0 = main::x1-main::x0
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Constant main::yd#0 = main::y1-main::y0
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Constant main::x#0 = main::x0
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Constant main::y#0 = main::y0
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Constant main::$14 = main::x1+1
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Successful SSA optimization Pass2ConstantIdentification
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Removing unused procedure __start
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Removing unused procedure block __start
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Removing unused procedure block __start::__init1
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Removing unused procedure block __start::@1
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Removing unused procedure block __start::@2
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Removing unused procedure block __start::@return
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Successful SSA optimization PassNEliminateEmptyStart
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Constant right-side identified [0] main::e#0 = main::yd#0 / 2
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Constant right-side identified [1] main::$3 = main::y#0 * $28
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Successful SSA optimization Pass2ConstantRValueConsolidation
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Constant main::e#0 = main::yd#0/2
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Constant main::$3 = main::y#0*$28
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Successful SSA optimization Pass2ConstantIdentification
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Constant right-side identified [0] main::$4 = SCREEN + main::$3
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Successful SSA optimization Pass2ConstantRValueConsolidation
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Constant main::$4 = SCREEN+main::$3
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Successful SSA optimization Pass2ConstantIdentification
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Constant right-side identified [0] main::cursor#0 = main::$4 + main::x#0
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Successful SSA optimization Pass2ConstantRValueConsolidation
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Constant main::cursor#0 = main::$4+main::x#0
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Successful SSA optimization Pass2ConstantIdentification
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Inlining constant with var siblings main::x#0
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Inlining constant with var siblings main::y#0
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Inlining constant with var siblings main::e#0
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Inlining constant with var siblings main::cursor#0
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Constant inlined main::cursor#0 = SCREEN+main::y0*$28+main::x0
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Constant inlined main::x#0 = main::x0
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Constant inlined main::$14 = main::x1+1
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Constant inlined main::$3 = main::y0*$28
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Constant inlined main::y#0 = main::y0
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Constant inlined main::$4 = SCREEN+main::y0*$28
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Constant inlined main::e#0 = main::yd#0/2
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Successful SSA optimization Pass2ConstantInlining
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Finalized unsigned number type (byte) $28
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Finalized unsigned number type (byte) $19
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Added new block during phi lifting main::@4(between main::@2 and main::@1)
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Added new block during phi lifting main::@5(between main::@1 and main::@2)
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Adding NOP phi() at start of main
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CALL GRAPH
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Created 7 initial phi equivalence classes
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Coalesced [10] main::cursor#8 = main::cursor#2
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Coalesced [11] main::e#8 = main::e#2
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Coalesced [12] main::y#7 = main::y#1
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Coalesced [16] main::cursor#6 = main::cursor#5
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Coalesced [17] main::x#5 = main::x#1
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Coalesced [18] main::e#6 = main::e#5
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Coalesced [19] main::y#5 = main::y#4
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Coalesced [20] main::cursor#7 = main::cursor#1
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Coalesced [21] main::e#7 = main::e#1
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Coalesced (already) [22] main::y#6 = main::y#2
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Coalesced down to 4 phi equivalence classes
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Culled Empty Block label main::@4
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Culled Empty Block label main::@5
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Adding NOP phi() at start of main
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FINAL CONTROL FLOW GRAPH
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void main()
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main: scope:[main] from
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[0] phi()
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to:main::@1
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main::@1: scope:[main] from main main::@2
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[1] main::y#2 = phi( main/main::y0, main::@2/main::y#4 )
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[1] main::e#3 = phi( main/main::yd#0/2, main::@2/main::e#5 )
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[1] main::x#2 = phi( main/main::x0, main::@2/main::x#1 )
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[1] main::cursor#3 = phi( main/SCREEN+main::y0*$28+main::x0, main::@2/main::cursor#5 )
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[2] *main::cursor#3 = STAR
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[3] main::x#1 = main::x#2 + 1
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[4] main::cursor#1 = main::cursor#3 + 1
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[5] main::e#1 = main::e#3 + main::yd#0
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[6] if(main::xd#0>main::e#1) goto main::@2
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to:main::@3
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main::@3: scope:[main] from main::@1
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[7] main::y#1 = main::y#2 + 1
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[8] main::cursor#2 = main::cursor#1 + $28
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[9] main::e#2 = main::e#1 - main::xd#0
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to:main::@2
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main::@2: scope:[main] from main::@1 main::@3
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[10] main::y#4 = phi( main::@1/main::y#2, main::@3/main::y#1 )
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[10] main::e#5 = phi( main::@1/main::e#1, main::@3/main::e#2 )
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[10] main::cursor#5 = phi( main::@1/main::cursor#1, main::@3/main::cursor#2 )
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[11] if(main::x#1<main::x1+1) goto main::@1
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to:main::@return
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main::@return: scope:[main] from main::@2
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[12] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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void main()
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byte* main::cursor
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byte* main::cursor#1 8.25
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byte* main::cursor#2 11.0
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byte* main::cursor#3 11.0
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byte* main::cursor#5 16.5
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byte main::e
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byte main::e#1 11.0
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byte main::e#2 22.0
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byte main::e#3 5.5
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byte main::e#5 16.5
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byte main::x
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byte main::x#1 3.666666666666667
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byte main::x#2 11.0
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byte main::xd
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byte main::y
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byte main::y#1 7.333333333333333
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byte main::y#2 5.5
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byte main::y#4 16.5
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byte main::yd
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Initial phi equivalence classes
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[ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ]
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[ main::x#2 main::x#1 ]
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[ main::e#3 main::e#5 main::e#1 main::e#2 ]
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[ main::y#2 main::y#4 main::y#1 ]
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Complete equivalence classes
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[ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ]
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[ main::x#2 main::x#1 ]
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[ main::e#3 main::e#5 main::e#1 main::e#2 ]
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[ main::y#2 main::y#4 main::y#1 ]
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Allocated zp[2]:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ]
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Allocated zp[1]:4 [ main::x#2 main::x#1 ]
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Allocated zp[1]:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ]
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Allocated zp[1]:6 [ main::y#2 main::y#4 main::y#1 ]
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [2] *main::cursor#3 = STAR [ main::cursor#3 main::x#2 main::e#3 main::y#2 ] ( [ main::cursor#3 main::x#2 main::e#3 main::y#2 ] { } ) always clobbers reg byte a reg byte y
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Removing always clobbered register reg byte a as potential for zp[1]:4 [ main::x#2 main::x#1 ]
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Removing always clobbered register reg byte y as potential for zp[1]:4 [ main::x#2 main::x#1 ]
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Removing always clobbered register reg byte a as potential for zp[1]:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ]
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Removing always clobbered register reg byte y as potential for zp[1]:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ]
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Removing always clobbered register reg byte a as potential for zp[1]:6 [ main::y#2 main::y#4 main::y#1 ]
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Removing always clobbered register reg byte y as potential for zp[1]:6 [ main::y#2 main::y#4 main::y#1 ]
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Statement [5] main::e#1 = main::e#3 + main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] { } ) always clobbers reg byte a reg byte x
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Removing always clobbered register reg byte x as potential for zp[1]:6 [ main::y#2 main::y#4 main::y#1 ]
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Removing always clobbered register reg byte x as potential for zp[1]:4 [ main::x#2 main::x#1 ]
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Statement [8] main::cursor#2 = main::cursor#1 + $28 [ main::x#1 main::e#1 main::y#1 main::cursor#2 ] ( [ main::x#1 main::e#1 main::y#1 main::cursor#2 ] { } ) always clobbers reg byte a
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Statement [9] main::e#2 = main::e#1 - main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] { } ) always clobbers reg byte a reg byte x
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Statement [11] if(main::x#1<main::x1+1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] { } ) always clobbers reg byte a
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Statement [2] *main::cursor#3 = STAR [ main::cursor#3 main::x#2 main::e#3 main::y#2 ] ( [ main::cursor#3 main::x#2 main::e#3 main::y#2 ] { } ) always clobbers reg byte a reg byte y
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Statement [5] main::e#1 = main::e#3 + main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] { } ) always clobbers reg byte a reg byte x
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Statement [8] main::cursor#2 = main::cursor#1 + $28 [ main::x#1 main::e#1 main::y#1 main::cursor#2 ] ( [ main::x#1 main::e#1 main::y#1 main::cursor#2 ] { } ) always clobbers reg byte a
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Statement [9] main::e#2 = main::e#1 - main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] { } ) always clobbers reg byte a reg byte x
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Statement [11] if(main::x#1<main::x1+1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] { } ) always clobbers reg byte a
|
|
Potential registers zp[2]:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ] : zp[2]:2 ,
|
|
Potential registers zp[1]:4 [ main::x#2 main::x#1 ] : zp[1]:4 ,
|
|
Potential registers zp[1]:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ] : zp[1]:5 , reg byte x ,
|
|
Potential registers zp[1]:6 [ main::y#2 main::y#4 main::y#1 ] : zp[1]:6 ,
|
|
|
|
REGISTER UPLIFT SCOPES
|
|
Uplift Scope [main] 55: zp[1]:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ] 46.75: zp[2]:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ] 29.33: zp[1]:6 [ main::y#2 main::y#4 main::y#1 ] 14.67: zp[1]:4 [ main::x#2 main::x#1 ]
|
|
Uplift Scope []
|
|
|
|
Uplifting [main] best 1076 combination reg byte x [ main::e#3 main::e#5 main::e#1 main::e#2 ] zp[2]:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ] zp[1]:6 [ main::y#2 main::y#4 main::y#1 ] zp[1]:4 [ main::x#2 main::x#1 ]
|
|
Uplifting [] best 1076 combination
|
|
Attempting to uplift remaining variables inzp[1]:6 [ main::y#2 main::y#4 main::y#1 ]
|
|
Uplifting [main] best 1076 combination zp[1]:6 [ main::y#2 main::y#4 main::y#1 ]
|
|
Attempting to uplift remaining variables inzp[1]:4 [ main::x#2 main::x#1 ]
|
|
Uplifting [main] best 1076 combination zp[1]:4 [ main::x#2 main::x#1 ]
|
|
Allocated (was zp[1]:6) zp[1]:5 [ main::y#2 main::y#4 main::y#1 ]
|
|
|
|
ASSEMBLER BEFORE OPTIMIZATION
|
|
// File Comments
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="bresenham.prg", type="prg", segments="Program"]
|
|
.segmentdef Program [segments="Basic, Code, Data"]
|
|
.segmentdef Basic [start=$0801]
|
|
.segmentdef Code [start=$80d]
|
|
.segmentdef Data [startAfter="Code"]
|
|
.segment Basic
|
|
:BasicUpstart(main)
|
|
// Global Constants & labels
|
|
.const STAR = $51
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
main: {
|
|
.const x0 = 4
|
|
.const y0 = 4
|
|
.const x1 = $27
|
|
.const y1 = $18
|
|
.const xd = x1-x0
|
|
.const yd = y1-y0
|
|
.label x = 4
|
|
.label cursor = 2
|
|
.label y = 5
|
|
// [1] phi from main to main::@1 [phi:main->main::@1]
|
|
__b1_from_main:
|
|
// [1] phi main::y#2 = main::y0 [phi:main->main::@1#0] -- vbuz1=vbuc1
|
|
lda #y0
|
|
sta.z y
|
|
// [1] phi main::e#3 = main::yd#0/2 [phi:main->main::@1#1] -- vbuxx=vbuc1
|
|
ldx #yd/2
|
|
// [1] phi main::x#2 = main::x0 [phi:main->main::@1#2] -- vbuz1=vbuc1
|
|
lda #x0
|
|
sta.z x
|
|
// [1] phi main::cursor#3 = SCREEN+main::y0*$28+main::x0 [phi:main->main::@1#3] -- pbuz1=pbuc1
|
|
lda #<SCREEN+y0*$28+x0
|
|
sta.z cursor
|
|
lda #>SCREEN+y0*$28+x0
|
|
sta.z cursor+1
|
|
jmp __b1
|
|
// [1] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
|
|
__b1_from___b2:
|
|
// [1] phi main::y#2 = main::y#4 [phi:main::@2->main::@1#0] -- register_copy
|
|
// [1] phi main::e#3 = main::e#5 [phi:main::@2->main::@1#1] -- register_copy
|
|
// [1] phi main::x#2 = main::x#1 [phi:main::@2->main::@1#2] -- register_copy
|
|
// [1] phi main::cursor#3 = main::cursor#5 [phi:main::@2->main::@1#3] -- register_copy
|
|
jmp __b1
|
|
// main::@1
|
|
__b1:
|
|
// [2] *main::cursor#3 = STAR -- _deref_pbuz1=vbuc1
|
|
lda #STAR
|
|
ldy #0
|
|
sta (cursor),y
|
|
// [3] main::x#1 = main::x#2 + 1 -- vbuz1=vbuz1_plus_1
|
|
inc.z x
|
|
// [4] main::cursor#1 = main::cursor#3 + 1 -- pbuz1=pbuz1_plus_1
|
|
inc.z cursor
|
|
bne !+
|
|
inc.z cursor+1
|
|
!:
|
|
// [5] main::e#1 = main::e#3 + main::yd#0 -- vbuxx=vbuxx_plus_vbuc1
|
|
txa
|
|
axs #-[yd]
|
|
// [6] if(main::xd#0>main::e#1) goto main::@2 -- vbuc1_gt_vbuxx_then_la1
|
|
cpx #xd
|
|
bcc __b2_from___b1
|
|
jmp __b3
|
|
// main::@3
|
|
__b3:
|
|
// [7] main::y#1 = main::y#2 + 1 -- vbuz1=vbuz1_plus_1
|
|
inc.z y
|
|
// [8] main::cursor#2 = main::cursor#1 + $28 -- pbuz1=pbuz1_plus_vbuc1
|
|
lda #$28
|
|
clc
|
|
adc.z cursor
|
|
sta.z cursor
|
|
bcc !+
|
|
inc.z cursor+1
|
|
!:
|
|
// [9] main::e#2 = main::e#1 - main::xd#0 -- vbuxx=vbuxx_minus_vbuc1
|
|
txa
|
|
axs #xd
|
|
// [10] phi from main::@1 main::@3 to main::@2 [phi:main::@1/main::@3->main::@2]
|
|
__b2_from___b1:
|
|
__b2_from___b3:
|
|
// [10] phi main::y#4 = main::y#2 [phi:main::@1/main::@3->main::@2#0] -- register_copy
|
|
// [10] phi main::e#5 = main::e#1 [phi:main::@1/main::@3->main::@2#1] -- register_copy
|
|
// [10] phi main::cursor#5 = main::cursor#1 [phi:main::@1/main::@3->main::@2#2] -- register_copy
|
|
jmp __b2
|
|
// main::@2
|
|
__b2:
|
|
// [11] if(main::x#1<main::x1+1) goto main::@1 -- vbuz1_lt_vbuc1_then_la1
|
|
lda.z x
|
|
cmp #x1+1
|
|
bcc __b1_from___b2
|
|
jmp __breturn
|
|
// main::@return
|
|
__breturn:
|
|
// [12] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|
|
ASSEMBLER OPTIMIZATIONS
|
|
Removing instruction jmp __b1
|
|
Removing instruction jmp __b3
|
|
Removing instruction jmp __b2
|
|
Removing instruction jmp __breturn
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
Replacing label __b2_from___b1 with __b2
|
|
Replacing label __b1_from___b2 with __b1
|
|
Removing instruction __b1_from___b2:
|
|
Removing instruction __b2_from___b1:
|
|
Removing instruction __b2_from___b3:
|
|
Succesful ASM optimization Pass5RedundantLabelElimination
|
|
Removing instruction __b1_from_main:
|
|
Removing instruction __b3:
|
|
Removing instruction __breturn:
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
Removing instruction jmp __b1
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
|
|
FINAL SYMBOL TABLE
|
|
const byte* SCREEN[$28*$19] = (byte*) 1024
|
|
const byte STAR = $51
|
|
void main()
|
|
byte* main::cursor
|
|
byte* main::cursor#1 cursor zp[2]:2 8.25
|
|
byte* main::cursor#2 cursor zp[2]:2 11.0
|
|
byte* main::cursor#3 cursor zp[2]:2 11.0
|
|
byte* main::cursor#5 cursor zp[2]:2 16.5
|
|
byte main::e
|
|
byte main::e#1 reg byte x 11.0
|
|
byte main::e#2 reg byte x 22.0
|
|
byte main::e#3 reg byte x 5.5
|
|
byte main::e#5 reg byte x 16.5
|
|
byte main::x
|
|
byte main::x#1 x zp[1]:4 3.666666666666667
|
|
byte main::x#2 x zp[1]:4 11.0
|
|
const byte main::x0 = 4
|
|
const byte main::x1 = $27
|
|
byte main::xd
|
|
const byte main::xd#0 xd = main::x1-main::x0
|
|
byte main::y
|
|
byte main::y#1 y zp[1]:5 7.333333333333333
|
|
byte main::y#2 y zp[1]:5 5.5
|
|
byte main::y#4 y zp[1]:5 16.5
|
|
const byte main::y0 = 4
|
|
const byte main::y1 = $18
|
|
byte main::yd
|
|
const byte main::yd#0 yd = main::y1-main::y0
|
|
|
|
zp[2]:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ]
|
|
zp[1]:4 [ main::x#2 main::x#1 ]
|
|
reg byte x [ main::e#3 main::e#5 main::e#1 main::e#2 ]
|
|
zp[1]:5 [ main::y#2 main::y#4 main::y#1 ]
|
|
|
|
|
|
FINAL ASSEMBLER
|
|
Score: 926
|
|
|
|
// File Comments
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="bresenham.prg", type="prg", segments="Program"]
|
|
.segmentdef Program [segments="Basic, Code, Data"]
|
|
.segmentdef Basic [start=$0801]
|
|
.segmentdef Code [start=$80d]
|
|
.segmentdef Data [startAfter="Code"]
|
|
.segment Basic
|
|
:BasicUpstart(main)
|
|
// Global Constants & labels
|
|
.const STAR = $51
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
main: {
|
|
.const x0 = 4
|
|
.const y0 = 4
|
|
.const x1 = $27
|
|
.const y1 = $18
|
|
.const xd = x1-x0
|
|
.const yd = y1-y0
|
|
.label x = 4
|
|
.label cursor = 2
|
|
.label y = 5
|
|
// [1] phi from main to main::@1 [phi:main->main::@1]
|
|
// [1] phi main::y#2 = main::y0 [phi:main->main::@1#0] -- vbuz1=vbuc1
|
|
lda #y0
|
|
sta.z y
|
|
// [1] phi main::e#3 = main::yd#0/2 [phi:main->main::@1#1] -- vbuxx=vbuc1
|
|
ldx #yd/2
|
|
// [1] phi main::x#2 = main::x0 [phi:main->main::@1#2] -- vbuz1=vbuc1
|
|
lda #x0
|
|
sta.z x
|
|
// [1] phi main::cursor#3 = SCREEN+main::y0*$28+main::x0 [phi:main->main::@1#3] -- pbuz1=pbuc1
|
|
lda #<SCREEN+y0*$28+x0
|
|
sta.z cursor
|
|
lda #>SCREEN+y0*$28+x0
|
|
sta.z cursor+1
|
|
// [1] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
|
|
// [1] phi main::y#2 = main::y#4 [phi:main::@2->main::@1#0] -- register_copy
|
|
// [1] phi main::e#3 = main::e#5 [phi:main::@2->main::@1#1] -- register_copy
|
|
// [1] phi main::x#2 = main::x#1 [phi:main::@2->main::@1#2] -- register_copy
|
|
// [1] phi main::cursor#3 = main::cursor#5 [phi:main::@2->main::@1#3] -- register_copy
|
|
// main::@1
|
|
__b1:
|
|
// *cursor = STAR
|
|
// [2] *main::cursor#3 = STAR -- _deref_pbuz1=vbuc1
|
|
lda #STAR
|
|
ldy #0
|
|
sta (cursor),y
|
|
// x = x + 1
|
|
// [3] main::x#1 = main::x#2 + 1 -- vbuz1=vbuz1_plus_1
|
|
inc.z x
|
|
// cursor = cursor + 1
|
|
// [4] main::cursor#1 = main::cursor#3 + 1 -- pbuz1=pbuz1_plus_1
|
|
inc.z cursor
|
|
bne !+
|
|
inc.z cursor+1
|
|
!:
|
|
// e = e+yd
|
|
// [5] main::e#1 = main::e#3 + main::yd#0 -- vbuxx=vbuxx_plus_vbuc1
|
|
txa
|
|
axs #-[yd]
|
|
// if(xd<=e)
|
|
// [6] if(main::xd#0>main::e#1) goto main::@2 -- vbuc1_gt_vbuxx_then_la1
|
|
cpx #xd
|
|
bcc __b2
|
|
// main::@3
|
|
// y = y+1
|
|
// [7] main::y#1 = main::y#2 + 1 -- vbuz1=vbuz1_plus_1
|
|
inc.z y
|
|
// cursor = cursor + 40
|
|
// [8] main::cursor#2 = main::cursor#1 + $28 -- pbuz1=pbuz1_plus_vbuc1
|
|
lda #$28
|
|
clc
|
|
adc.z cursor
|
|
sta.z cursor
|
|
bcc !+
|
|
inc.z cursor+1
|
|
!:
|
|
// e = e - xd
|
|
// [9] main::e#2 = main::e#1 - main::xd#0 -- vbuxx=vbuxx_minus_vbuc1
|
|
txa
|
|
axs #xd
|
|
// [10] phi from main::@1 main::@3 to main::@2 [phi:main::@1/main::@3->main::@2]
|
|
// [10] phi main::y#4 = main::y#2 [phi:main::@1/main::@3->main::@2#0] -- register_copy
|
|
// [10] phi main::e#5 = main::e#1 [phi:main::@1/main::@3->main::@2#1] -- register_copy
|
|
// [10] phi main::cursor#5 = main::cursor#1 [phi:main::@1/main::@3->main::@2#2] -- register_copy
|
|
// main::@2
|
|
__b2:
|
|
// while (x<(x1+1))
|
|
// [11] if(main::x#1<main::x1+1) goto main::@1 -- vbuz1_lt_vbuc1_then_la1
|
|
lda.z x
|
|
cmp #x1+1
|
|
bcc __b1
|
|
// main::@return
|
|
// }
|
|
// [12] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|