mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-06-03 07:29:37 +00:00
450 lines
14 KiB
Plaintext
450 lines
14 KiB
Plaintext
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CONTROL FLOW GRAPH SSA
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void main()
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main: scope:[main] from __start
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sum::a#0 = main::reverse
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sum::b#0 = 'c'
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call sum
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sum::return#0 = sum::return#4
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to:main::@1
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main::@1: scope:[main] from main
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sum::return#5 = phi( main/sum::return#0 )
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main::$0 = sum::return#5
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main::screen[0] = main::$0
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sum::a#1 = main::reverse
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sum::b#1 = 'm'
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call sum
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sum::return#1 = sum::return#4
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to:main::@2
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main::@2: scope:[main] from main::@1
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sum::return#6 = phi( main::@1/sum::return#1 )
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main::$1 = sum::return#6
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main::screen[1] = main::$1
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sum::a#2 = main::reverse
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sum::b#2 = 'l'
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call sum
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sum::return#2 = sum::return#4
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to:main::@3
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main::@3: scope:[main] from main::@2
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sum::return#7 = phi( main::@2/sum::return#2 )
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main::$2 = sum::return#7
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main::screen[2] = main::$2
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to:main::@return
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main::@return: scope:[main] from main::@3
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return
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to:@return
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char sum(char a , char b)
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sum: scope:[sum] from main main::@1 main::@2
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sum::b#3 = phi( main/sum::b#0, main::@1/sum::b#1, main::@2/sum::b#2 )
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sum::a#3 = phi( main/sum::a#0, main::@1/sum::a#1, main::@2/sum::a#2 )
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sum::$0 = sum::a#3 + sum::b#3
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sum::return#3 = sum::$0
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to:sum::@return
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sum::@return: scope:[sum] from sum
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sum::return#8 = phi( sum/sum::return#3 )
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sum::return#4 = sum::return#8
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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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call main
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to:__start::@1
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__start::@1: scope:[__start] from __start
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to:__start::@return
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__start::@return: scope:[__start] from __start::@1
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return
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to:@return
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SYMBOL TABLE SSA
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void __start()
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void main()
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char main::$0
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char main::$1
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char main::$2
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__constant const char main::reverse = $80
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__constant char *main::screen = (char *)$400
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char sum(char a , char b)
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char sum::$0
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char sum::a
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char sum::a#0
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char sum::a#1
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char sum::a#2
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char sum::a#3
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char sum::b
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char sum::b#0
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char sum::b#1
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char sum::b#2
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char sum::b#3
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char sum::return
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char sum::return#0
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char sum::return#1
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char sum::return#2
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char sum::return#3
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char sum::return#4
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char sum::return#5
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char sum::return#6
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char sum::return#7
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char sum::return#8
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Adding number conversion cast (unumber) 0 in main::screen[0] = main::$0
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Adding number conversion cast (unumber) 1 in main::screen[1] = main::$1
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Adding number conversion cast (unumber) 2 in main::screen[2] = main::$2
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant pointer cast (char *) 1024
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Simplifying constant integer cast 0
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Simplifying constant integer cast 1
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Simplifying constant integer cast 2
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (char) 0
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Finalized unsigned number type (char) 1
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Finalized unsigned number type (char) 2
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Alias sum::return#0 = sum::return#5
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Alias sum::return#1 = sum::return#6
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Alias sum::return#2 = sum::return#7
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Alias sum::return#3 = sum::$0 sum::return#8 sum::return#4
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Successful SSA optimization Pass2AliasElimination
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Constant sum::a#0 = main::reverse
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Constant sum::b#0 = 'c'
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Constant sum::a#1 = main::reverse
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Constant sum::b#1 = 'm'
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Constant sum::a#2 = main::reverse
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Constant sum::b#2 = 'l'
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Successful SSA optimization Pass2ConstantIdentification
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Simplifying expression containing zero main::screen in [5] main::screen[0] = main::$0
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Successful SSA optimization PassNSimplifyExpressionWithZero
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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::@1
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Removing unused procedure block __start::@return
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Successful SSA optimization PassNEliminateEmptyStart
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Inlining constant with var siblings sum::a#0
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Inlining constant with var siblings sum::b#0
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Inlining constant with var siblings sum::a#1
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Inlining constant with var siblings sum::b#1
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Inlining constant with var siblings sum::a#2
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Inlining constant with var siblings sum::b#2
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Constant inlined sum::a#2 = main::reverse
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Constant inlined sum::b#1 = 'm'
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Constant inlined sum::a#1 = main::reverse
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Constant inlined sum::b#0 = 'c'
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Constant inlined sum::b#2 = 'l'
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Constant inlined sum::a#0 = main::reverse
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Successful SSA optimization Pass2ConstantInlining
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Consolidated array index constant in *(main::screen+1)
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Consolidated array index constant in *(main::screen+2)
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Successful SSA optimization Pass2ConstantAdditionElimination
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Identical Phi Values sum::a#3 main::reverse
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Successful SSA optimization Pass2IdenticalPhiElimination
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Adding NOP phi() at start of main
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CALL GRAPH
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Calls in [main] to sum:1 sum:5 sum:9
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Created 1 initial phi equivalence classes
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Coalesced down to 1 phi equivalence classes
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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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[1] call sum
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[2] sum::return#0 = sum::return#3
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to:main::@1
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main::@1: scope:[main] from main
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[3] main::$0 = sum::return#0
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[4] *main::screen = main::$0
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[5] call sum
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[6] sum::return#1 = sum::return#3
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to:main::@2
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main::@2: scope:[main] from main::@1
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[7] main::$1 = sum::return#1
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[8] *(main::screen+1) = main::$1
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[9] call sum
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[10] sum::return#2 = sum::return#3
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to:main::@3
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main::@3: scope:[main] from main::@2
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[11] main::$2 = sum::return#2
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[12] *(main::screen+2) = main::$2
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to:main::@return
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main::@return: scope:[main] from main::@3
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[13] return
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to:@return
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char sum(char a , char b)
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sum: scope:[sum] from main main::@1 main::@2
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[14] sum::b#3 = phi( main/'c', main::@1/'m', main::@2/'l' )
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[15] sum::return#3 = main::reverse + sum::b#3
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to:sum::@return
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sum::@return: scope:[sum] from sum
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[16] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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void main()
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char main::$0 // 4.0
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char main::$1 // 4.0
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char main::$2 // 4.0
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char sum(char a , char b)
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char sum::a
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char sum::b
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char sum::b#3 // 11.0
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char sum::return
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char sum::return#0 // 4.0
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char sum::return#1 // 4.0
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char sum::return#2 // 4.0
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char sum::return#3 // 3.4000000000000004
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Initial phi equivalence classes
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[ sum::b#3 ]
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Added variable sum::return#0 to live range equivalence class [ sum::return#0 ]
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Added variable main::$0 to live range equivalence class [ main::$0 ]
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Added variable sum::return#1 to live range equivalence class [ sum::return#1 ]
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Added variable main::$1 to live range equivalence class [ main::$1 ]
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Added variable sum::return#2 to live range equivalence class [ sum::return#2 ]
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Added variable main::$2 to live range equivalence class [ main::$2 ]
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Added variable sum::return#3 to live range equivalence class [ sum::return#3 ]
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Complete equivalence classes
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[ sum::b#3 ]
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[ sum::return#0 ]
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[ main::$0 ]
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[ sum::return#1 ]
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[ main::$1 ]
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[ sum::return#2 ]
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[ main::$2 ]
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[ sum::return#3 ]
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Allocated zp[1]:2 [ sum::b#3 ]
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Allocated zp[1]:3 [ sum::return#0 ]
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Allocated zp[1]:4 [ main::$0 ]
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Allocated zp[1]:5 [ sum::return#1 ]
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Allocated zp[1]:6 [ main::$1 ]
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Allocated zp[1]:7 [ sum::return#2 ]
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Allocated zp[1]:8 [ main::$2 ]
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Allocated zp[1]:9 [ sum::return#3 ]
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REGISTER UPLIFT POTENTIAL REGISTERS
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Potential registers zp[1]:2 [ sum::b#3 ] : zp[1]:2 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:3 [ sum::return#0 ] : zp[1]:3 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:4 [ main::$0 ] : zp[1]:4 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:5 [ sum::return#1 ] : zp[1]:5 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:6 [ main::$1 ] : zp[1]:6 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:7 [ sum::return#2 ] : zp[1]:7 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:8 [ main::$2 ] : zp[1]:8 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:9 [ sum::return#3 ] : zp[1]:9 , reg byte a , reg byte x , reg byte y ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [sum] 11: zp[1]:2 [ sum::b#3 ] 4: zp[1]:3 [ sum::return#0 ] 4: zp[1]:5 [ sum::return#1 ] 4: zp[1]:7 [ sum::return#2 ] 3.4: zp[1]:9 [ sum::return#3 ]
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Uplift Scope [main] 4: zp[1]:4 [ main::$0 ] 4: zp[1]:6 [ main::$1 ] 4: zp[1]:8 [ main::$2 ]
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Uplift Scope []
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Uplifting [sum] best 97 combination reg byte a [ sum::b#3 ] reg byte a [ sum::return#0 ] reg byte a [ sum::return#1 ] reg byte a [ sum::return#2 ] zp[1]:9 [ sum::return#3 ]
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Limited combination testing to 100 combinations of 1024 possible.
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Uplifting [main] best 79 combination reg byte a [ main::$0 ] reg byte a [ main::$1 ] reg byte a [ main::$2 ]
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Uplifting [] best 79 combination
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Attempting to uplift remaining variables inzp[1]:9 [ sum::return#3 ]
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Uplifting [sum] best 67 combination reg byte a [ sum::return#3 ]
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Test that the compiler optimizes when the same parameter value is passed into a function in all calls
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// Upstart
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// Commodore 64 PRG executable file
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.file [name="const-param.prg", type="prg", segments="Program"]
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.segmentdef Program [segments="Basic, Code, Data"]
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.segmentdef Basic [start=$0801]
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.segmentdef Code [start=$80d]
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.segmentdef Data [startAfter="Code"]
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.segment Basic
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:BasicUpstart(main)
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// Global Constants & labels
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.segment Code
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// main
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main: {
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.label reverse = $80
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.label screen = $400
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// [1] call sum
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// [14] phi from main to sum [phi:main->sum]
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sum_from_main:
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// [14] phi sum::b#3 = 'c' [phi:main->sum#0] -- vbuaa=vbuc1
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lda #'c'
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jsr sum
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// [2] sum::return#0 = sum::return#3
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jmp __b1
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// main::@1
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__b1:
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// [3] main::$0 = sum::return#0
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// [4] *main::screen = main::$0 -- _deref_pbuc1=vbuaa
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sta screen
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// [5] call sum
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// [14] phi from main::@1 to sum [phi:main::@1->sum]
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sum_from___b1:
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// [14] phi sum::b#3 = 'm' [phi:main::@1->sum#0] -- vbuaa=vbuc1
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lda #'m'
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jsr sum
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// [6] sum::return#1 = sum::return#3
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jmp __b2
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// main::@2
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__b2:
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// [7] main::$1 = sum::return#1
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// [8] *(main::screen+1) = main::$1 -- _deref_pbuc1=vbuaa
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sta screen+1
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// [9] call sum
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// [14] phi from main::@2 to sum [phi:main::@2->sum]
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sum_from___b2:
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// [14] phi sum::b#3 = 'l' [phi:main::@2->sum#0] -- vbuaa=vbuc1
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lda #'l'
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jsr sum
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// [10] sum::return#2 = sum::return#3
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jmp __b3
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// main::@3
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__b3:
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// [11] main::$2 = sum::return#2
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// [12] *(main::screen+2) = main::$2 -- _deref_pbuc1=vbuaa
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sta screen+2
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jmp __breturn
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// main::@return
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__breturn:
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// [13] return
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rts
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}
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// sum
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// __register(A) char sum(char a, __register(A) char b)
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sum: {
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// [15] sum::return#3 = main::reverse + sum::b#3 -- vbuaa=vbuc1_plus_vbuaa
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clc
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adc #main.reverse
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jmp __breturn
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// sum::@return
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__breturn:
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// [16] return
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rts
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}
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// File Data
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ASSEMBLER OPTIMIZATIONS
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Removing instruction jmp __b1
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Removing instruction jmp __b2
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Removing instruction jmp __b3
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Removing instruction jmp __breturn
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Removing instruction jmp __breturn
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Succesful ASM optimization Pass5NextJumpElimination
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Removing instruction sum_from_main:
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Removing instruction __b1:
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Removing instruction sum_from___b1:
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Removing instruction __b2:
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Removing instruction sum_from___b2:
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Removing instruction __b3:
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Removing instruction __breturn:
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Removing instruction __breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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FINAL SYMBOL TABLE
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void main()
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char main::$0 // reg byte a 4.0
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char main::$1 // reg byte a 4.0
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char main::$2 // reg byte a 4.0
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__constant const char main::reverse = $80
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__constant char *main::screen = (char *) 1024
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char sum(char a , char b)
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char sum::a
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char sum::b
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char sum::b#3 // reg byte a 11.0
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char sum::return
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char sum::return#0 // reg byte a 4.0
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char sum::return#1 // reg byte a 4.0
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char sum::return#2 // reg byte a 4.0
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char sum::return#3 // reg byte a 3.4000000000000004
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reg byte a [ sum::b#3 ]
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reg byte a [ sum::return#0 ]
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reg byte a [ main::$0 ]
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reg byte a [ sum::return#1 ]
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reg byte a [ main::$1 ]
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reg byte a [ sum::return#2 ]
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reg byte a [ main::$2 ]
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reg byte a [ sum::return#3 ]
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FINAL ASSEMBLER
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Score: 52
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// File Comments
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// Test that the compiler optimizes when the same parameter value is passed into a function in all calls
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// Upstart
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// Commodore 64 PRG executable file
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.file [name="const-param.prg", type="prg", segments="Program"]
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.segmentdef Program [segments="Basic, Code, Data"]
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.segmentdef Basic [start=$0801]
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.segmentdef Code [start=$80d]
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.segmentdef Data [startAfter="Code"]
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.segment Basic
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:BasicUpstart(main)
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// Global Constants & labels
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.segment Code
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// main
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main: {
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.label reverse = $80
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.label screen = $400
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// sum(reverse, 'c')
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// [1] call sum
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// [14] phi from main to sum [phi:main->sum]
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// [14] phi sum::b#3 = 'c' [phi:main->sum#0] -- vbuaa=vbuc1
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lda #'c'
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jsr sum
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// sum(reverse, 'c')
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// [2] sum::return#0 = sum::return#3
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// main::@1
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// [3] main::$0 = sum::return#0
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// screen[0] = sum(reverse, 'c')
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// [4] *main::screen = main::$0 -- _deref_pbuc1=vbuaa
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sta screen
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// sum(reverse, 'm')
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// [5] call sum
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// [14] phi from main::@1 to sum [phi:main::@1->sum]
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// [14] phi sum::b#3 = 'm' [phi:main::@1->sum#0] -- vbuaa=vbuc1
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lda #'m'
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jsr sum
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// sum(reverse, 'm')
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// [6] sum::return#1 = sum::return#3
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// main::@2
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// [7] main::$1 = sum::return#1
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// screen[1] = sum(reverse, 'm')
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// [8] *(main::screen+1) = main::$1 -- _deref_pbuc1=vbuaa
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sta screen+1
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// sum(reverse, 'l')
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// [9] call sum
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// [14] phi from main::@2 to sum [phi:main::@2->sum]
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// [14] phi sum::b#3 = 'l' [phi:main::@2->sum#0] -- vbuaa=vbuc1
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lda #'l'
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jsr sum
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// sum(reverse, 'l')
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// [10] sum::return#2 = sum::return#3
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// main::@3
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// [11] main::$2 = sum::return#2
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// screen[2] = sum(reverse, 'l')
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// [12] *(main::screen+2) = main::$2 -- _deref_pbuc1=vbuaa
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sta screen+2
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// main::@return
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// }
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// [13] return
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rts
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}
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// sum
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// __register(A) char sum(char a, __register(A) char b)
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sum: {
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// a+b
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// [15] sum::return#3 = main::reverse + sum::b#3 -- vbuaa=vbuc1_plus_vbuaa
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clc
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adc #main.reverse
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// sum::@return
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// }
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// [16] return
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rts
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}
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// File Data
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