mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-06-03 07:29:37 +00:00
595 lines
18 KiB
Plaintext
595 lines
18 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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main::i#0 = 0
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to:main::@1
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main::@1: scope:[main] from main main::@1
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main::i#2 = phi( main/main::i#0, main::@1/main::i#1 )
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plots[main::i#2] = main::i#2
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SCREEN[main::i#2] = 0
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main::i#1 = main::i#2 + rangenext(0,$27)
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main::$0 = main::i#1 != rangelast(0,$27)
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if(main::$0) goto main::@1
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to:main::@2
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main::@2: scope:[main] from main::@1 main::@3
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line::x0#0 = 0
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line::x1#0 = $a
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call line
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to:main::@3
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main::@3: scope:[main] from main::@2
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if(true) goto 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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void line(char x0 , char x1)
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line: scope:[line] from main::@2
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line::x1#1 = phi( main::@2/line::x1#0 )
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line::x0#1 = phi( main::@2/line::x0#0 )
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line::$0 = line::x0#1 < line::x1#1
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if(line::$0) goto line::@1
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to:line::@2
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line::@1: scope:[line] from line
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line::x1#3 = phi( line/line::x1#1 )
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line::x0#2 = phi( line/line::x0#1 )
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line::x#0 = line::x0#2
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to:line::@3
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line::@2: scope:[line] from line
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line::x0#3 = phi( line/line::x0#1 )
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plot::x#0 = line::x0#3
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call plot
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to:line::@5
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line::@5: scope:[line] from line::@2
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to:line::@return
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line::@3: scope:[line] from line::@1 line::@6
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line::x1#2 = phi( line::@1/line::x1#3, line::@6/line::x1#4 )
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line::x#2 = phi( line::@1/line::x#0, line::@6/line::x#1 )
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line::$2 = line::x#2 <= line::x1#2
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if(line::$2) goto line::@4
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to:line::@return
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line::@4: scope:[line] from line::@3
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line::x1#5 = phi( line::@3/line::x1#2 )
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line::x#3 = phi( line::@3/line::x#2 )
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plot::x#1 = line::x#3
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call plot
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to:line::@6
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line::@6: scope:[line] from line::@4
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line::x1#4 = phi( line::@4/line::x1#5 )
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line::x#4 = phi( line::@4/line::x#3 )
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line::x#1 = ++ line::x#4
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to:line::@3
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line::@return: scope:[line] from line::@3 line::@5
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return
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to:@return
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void plot(char x)
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plot: scope:[plot] from line::@2 line::@4
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plot::x#2 = phi( line::@2/plot::x#0, line::@4/plot::x#1 )
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plot::idx#0 = plots[plot::x#2]
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plot::$0 = SCREEN[plot::idx#0] + 1
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SCREEN[plot::idx#0] = plot::$0
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to:plot::@return
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plot::@return: scope:[plot] from plot
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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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__constant char * const SCREEN = (char *)$400
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void __start()
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void line(char x0 , char x1)
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bool line::$0
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bool line::$2
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char line::x
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char line::x#0
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char line::x#1
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char line::x#2
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char line::x#3
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char line::x#4
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char line::x0
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char line::x0#0
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char line::x0#1
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char line::x0#2
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char line::x0#3
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char line::x1
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char line::x1#0
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char line::x1#1
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char line::x1#2
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char line::x1#3
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char line::x1#4
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char line::x1#5
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void main()
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bool main::$0
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char main::i
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char main::i#0
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char main::i#1
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char main::i#2
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void plot(char x)
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number plot::$0
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char plot::idx
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char plot::idx#0
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char plot::x
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char plot::x#0
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char plot::x#1
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char plot::x#2
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__constant char * const plots = (char *)$1000
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Adding number conversion cast (unumber) 0 in SCREEN[main::i#2] = 0
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Adding number conversion cast (unumber) 0 in line::x0#0 = 0
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Adding number conversion cast (unumber) $a in line::x1#0 = $a
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Adding number conversion cast (unumber) 1 in plot::$0 = SCREEN[plot::idx#0] + 1
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Adding number conversion cast (unumber) plot::$0 in plot::$0 = SCREEN[plot::idx#0] + (unumber)1
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Successful SSA optimization PassNAddNumberTypeConversions
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Inlining cast SCREEN[main::i#2] = (unumber)0
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Inlining cast line::x0#0 = (unumber)0
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Inlining cast line::x1#0 = (unumber)$a
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Successful SSA optimization Pass2InlineCast
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Simplifying constant pointer cast (char *) 4096
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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 0
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Simplifying constant integer cast $a
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Simplifying constant integer cast 1
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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) 0
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Finalized unsigned number type (char) $a
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Finalized unsigned number type (char) 1
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Inferred type updated to char in plot::$0 = SCREEN[plot::idx#0] + 1
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Alias line::x0#1 = line::x0#2 line::x#0 line::x0#3
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Alias line::x1#1 = line::x1#3
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Alias line::x#2 = line::x#3 line::x#4
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Alias line::x1#2 = line::x1#5 line::x1#4
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Successful SSA optimization Pass2AliasElimination
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Identical Phi Values line::x0#1 line::x0#0
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Identical Phi Values line::x1#1 line::x1#0
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Identical Phi Values line::x1#2 line::x1#1
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Successful SSA optimization Pass2IdenticalPhiElimination
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Simple Condition main::$0 [6] if(main::i#1!=rangelast(0,$27)) goto main::@1
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Simple Condition line::$0 [14] if(line::x0#0<line::x1#0) goto line::@1
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Simple Condition line::$2 [19] if(line::x#2<=line::x1#0) goto line::@4
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Successful SSA optimization Pass2ConditionalJumpSimplification
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Constant main::i#0 = 0
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Constant line::x0#0 = 0
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Constant line::x1#0 = $a
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Successful SSA optimization Pass2ConstantIdentification
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Constant plot::x#0 = line::x0#0
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Successful SSA optimization Pass2ConstantIdentification
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if() condition always true - replacing block destination [10] if(true) goto main::@2
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if() condition always true - replacing block destination [14] if(line::x0#0<line::x1#0) goto line::@1
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Successful SSA optimization Pass2ConstantIfs
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Resolved ranged next value [4] main::i#1 = ++ main::i#2 to ++
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Resolved ranged comparison value [6] if(main::i#1!=rangelast(0,$27)) goto main::@1 to $28
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Rewriting conditional comparison [19] if(line::x#2<=line::x1#0) goto line::@4
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Removing unused block main::@return
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Removing PHI-reference to removed block (line::@2) in block plot
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Removing unused block line::@2
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Removing unused block line::@5
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Successful SSA optimization Pass2EliminateUnusedBlocks
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Eliminating unused constant plot::x#0
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Successful SSA optimization PassNEliminateUnusedVars
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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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Adding number conversion cast (unumber) $28 in [4] if(main::i#1!=$28) goto main::@1
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Adding number conversion cast (unumber) line::x1#0+1 in [7] if(line::x#2<line::x1#0+1) goto line::@4
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Adding number conversion cast (unumber) 1 in [7] if(line::x#2<(unumber)line::x1#0+1) goto line::@4
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant integer cast $28
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Simplifying constant integer cast line::x1#0+(unumber)1
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Simplifying constant integer cast 1
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (char) $28
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Finalized unsigned number type (char) 1
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Identical Phi Values plot::x#2 plot::x#1
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Successful SSA optimization Pass2IdenticalPhiElimination
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Inlining constant with var siblings main::i#0
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Constant inlined main::i#0 = 0
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Successful SSA optimization Pass2ConstantInlining
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Added new block during phi lifting main::@4(between main::@1 and main::@1)
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Adding NOP phi() at start of main
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Adding NOP phi() at start of main::@2
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Adding NOP phi() at start of main::@3
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Adding NOP phi() at start of line
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Adding NOP phi() at start of line::@1
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CALL GRAPH
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Calls in [main] to line:7
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Calls in [line] to plot:16
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Created 2 initial phi equivalence classes
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Coalesced [9] main::i#3 = main::i#1
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Coalesced [18] line::x#5 = line::x#1
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Coalesced down to 2 phi equivalence classes
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Culled Empty Block label main::@3
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Culled Empty Block label main::@4
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Culled Empty Block label line::@1
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Renumbering block line::@3 to line::@1
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Renumbering block line::@4 to line::@2
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Renumbering block line::@6 to line::@3
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Adding NOP phi() at start of main
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Adding NOP phi() at start of main::@2
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Adding NOP phi() at start of line
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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::@1
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[1] main::i#2 = phi( main/0, main::@1/main::i#1 )
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[2] plots[main::i#2] = main::i#2
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[3] SCREEN[main::i#2] = 0
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[4] main::i#1 = ++ main::i#2
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[5] if(main::i#1!=$28) goto main::@1
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to:main::@2
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main::@2: scope:[main] from main::@1 main::@2
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[6] phi()
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[7] call line
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to:main::@2
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void line(char x0 , char x1)
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line: scope:[line] from main::@2
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[8] phi()
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to:line::@1
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line::@1: scope:[line] from line line::@3
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[9] line::x#2 = phi( line/line::x0#0, line::@3/line::x#1 )
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[10] if(line::x#2<line::x1#0+1) goto line::@2
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to:line::@return
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line::@return: scope:[line] from line::@1
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[11] return
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to:@return
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line::@2: scope:[line] from line::@1
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[12] plot::x#1 = line::x#2
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[13] call plot
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to:line::@3
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line::@3: scope:[line] from line::@2
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[14] line::x#1 = ++ line::x#2
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to:line::@1
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void plot(char x)
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plot: scope:[plot] from line::@2
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[15] plot::idx#0 = plots[plot::x#1]
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[16] plot::$0 = SCREEN[plot::idx#0] + 1
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[17] SCREEN[plot::idx#0] = plot::$0
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to:plot::@return
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plot::@return: scope:[plot] from plot
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[18] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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void line(char x0 , char x1)
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char line::x
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char line::x#1 // 20002.0
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char line::x#2 // 10001.0
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char line::x0
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char line::x1
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void main()
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char main::i
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char main::i#1 // 16.5
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char main::i#2 // 18.333333333333332
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void plot(char x)
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char plot::$0 // 200002.0
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char plot::idx
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char plot::idx#0 // 150001.5
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char plot::x
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char plot::x#1 // 110002.0
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Initial phi equivalence classes
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[ main::i#2 main::i#1 ]
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[ line::x#2 line::x#1 ]
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Added variable plot::x#1 to live range equivalence class [ plot::x#1 ]
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Added variable plot::idx#0 to live range equivalence class [ plot::idx#0 ]
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Added variable plot::$0 to live range equivalence class [ plot::$0 ]
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Complete equivalence classes
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[ main::i#2 main::i#1 ]
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[ line::x#2 line::x#1 ]
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[ plot::x#1 ]
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[ plot::idx#0 ]
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[ plot::$0 ]
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Allocated zp[1]:2 [ plot::$0 ]
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Allocated zp[1]:3 [ plot::idx#0 ]
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Allocated zp[1]:4 [ plot::x#1 ]
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Allocated zp[1]:5 [ line::x#2 line::x#1 ]
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Allocated zp[1]:6 [ main::i#2 main::i#1 ]
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [3] SCREEN[main::i#2] = 0 [ main::i#2 ] ( [ main::i#2 ] { } ) always clobbers reg byte a
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Removing always clobbered register reg byte a as potential for zp[1]:6 [ main::i#2 main::i#1 ]
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Statement [2] plots[main::i#2] = main::i#2 [ main::i#2 ] ( [ main::i#2 ] { } ) always clobbers reg byte a
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Statement [3] SCREEN[main::i#2] = 0 [ main::i#2 ] ( [ main::i#2 ] { } ) always clobbers reg byte a
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Potential registers zp[1]:6 [ main::i#2 main::i#1 ] : zp[1]:6 , reg byte x , reg byte y ,
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Potential registers zp[1]:5 [ line::x#2 line::x#1 ] : zp[1]:5 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:4 [ plot::x#1 ] : zp[1]:4 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:3 [ plot::idx#0 ] : zp[1]:3 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:2 [ plot::$0 ] : zp[1]:2 , reg byte a , reg byte x , reg byte y ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [plot] 200,002: zp[1]:2 [ plot::$0 ] 150,001.5: zp[1]:3 [ plot::idx#0 ] 110,002: zp[1]:4 [ plot::x#1 ]
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Uplift Scope [line] 30,003: zp[1]:5 [ line::x#2 line::x#1 ]
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Uplift Scope [main] 34.83: zp[1]:6 [ main::i#2 main::i#1 ]
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Uplift Scope []
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Uplifting [plot] best 4356 combination reg byte a [ plot::$0 ] reg byte y [ plot::idx#0 ] reg byte x [ plot::x#1 ]
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Uplifting [line] best 3156 combination reg byte x [ line::x#2 line::x#1 ]
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Uplifting [main] best 3006 combination reg byte x [ main::i#2 main::i#1 ]
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Uplifting [] best 3006 combination
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Upstart
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// Commodore 64 PRG executable file
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.file [name="const-identification.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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.label plots = $1000
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.label SCREEN = $400
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.segment Code
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// main
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main: {
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// [1] phi from main to main::@1 [phi:main->main::@1]
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__b1_from_main:
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// [1] phi main::i#2 = 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
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ldx #0
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jmp __b1
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// [1] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
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__b1_from___b1:
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// [1] phi main::i#2 = main::i#1 [phi:main::@1->main::@1#0] -- register_copy
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jmp __b1
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// main::@1
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__b1:
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// [2] plots[main::i#2] = main::i#2 -- pbuc1_derefidx_vbuxx=vbuxx
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txa
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sta plots,x
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// [3] SCREEN[main::i#2] = 0 -- pbuc1_derefidx_vbuxx=vbuc2
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lda #0
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sta SCREEN,x
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// [4] main::i#1 = ++ main::i#2 -- vbuxx=_inc_vbuxx
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inx
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// [5] if(main::i#1!=$28) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
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cpx #$28
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bne __b1_from___b1
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// [6] phi from main::@1 main::@2 to main::@2 [phi:main::@1/main::@2->main::@2]
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__b2_from___b1:
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__b2_from___b2:
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jmp __b2
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// main::@2
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__b2:
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// [7] call line
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// [8] phi from main::@2 to line [phi:main::@2->line]
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line_from___b2:
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jsr line
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jmp __b2_from___b2
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}
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// line
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// void line(char x0, char x1)
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line: {
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.const x0 = 0
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.const x1 = $a
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// [9] phi from line to line::@1 [phi:line->line::@1]
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__b1_from_line:
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// [9] phi line::x#2 = line::x0#0 [phi:line->line::@1#0] -- vbuxx=vbuc1
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ldx #x0
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jmp __b1
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// line::@1
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__b1:
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// [10] if(line::x#2<line::x1#0+1) goto line::@2 -- vbuxx_lt_vbuc1_then_la1
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cpx #x1+1
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bcc __b2
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jmp __breturn
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// line::@return
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__breturn:
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// [11] return
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rts
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// line::@2
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__b2:
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// [12] plot::x#1 = line::x#2
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// [13] call plot
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jsr plot
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jmp __b3
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// line::@3
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__b3:
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// [14] line::x#1 = ++ line::x#2 -- vbuxx=_inc_vbuxx
|
|
inx
|
|
// [9] phi from line::@3 to line::@1 [phi:line::@3->line::@1]
|
|
__b1_from___b3:
|
|
// [9] phi line::x#2 = line::x#1 [phi:line::@3->line::@1#0] -- register_copy
|
|
jmp __b1
|
|
}
|
|
// plot
|
|
// void plot(__register(X) char x)
|
|
plot: {
|
|
// [15] plot::idx#0 = plots[plot::x#1] -- vbuyy=pbuc1_derefidx_vbuxx
|
|
ldy plots,x
|
|
// [16] plot::$0 = SCREEN[plot::idx#0] + 1 -- vbuaa=pbuc1_derefidx_vbuyy_plus_1
|
|
lda SCREEN,y
|
|
clc
|
|
adc #1
|
|
// [17] SCREEN[plot::idx#0] = plot::$0 -- pbuc1_derefidx_vbuyy=vbuaa
|
|
sta SCREEN,y
|
|
jmp __breturn
|
|
// plot::@return
|
|
__breturn:
|
|
// [18] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|
|
ASSEMBLER OPTIMIZATIONS
|
|
Removing instruction jmp __b1
|
|
Removing instruction jmp __b2
|
|
Removing instruction jmp __b1
|
|
Removing instruction jmp __breturn
|
|
Removing instruction jmp __b3
|
|
Removing instruction jmp __breturn
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
Replacing label __b1_from___b1 with __b1
|
|
Replacing label __b2_from___b2 with __b2
|
|
Removing instruction __b1_from___b1:
|
|
Removing instruction __b2_from___b1:
|
|
Removing instruction __b2_from___b2:
|
|
Removing instruction line_from___b2:
|
|
Succesful ASM optimization Pass5RedundantLabelElimination
|
|
Removing instruction __b1_from_main:
|
|
Removing instruction __b1_from_line:
|
|
Removing instruction __breturn:
|
|
Removing instruction __b3:
|
|
Removing instruction __b1_from___b3:
|
|
Removing instruction __breturn:
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
Removing instruction jmp __b1
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
|
|
FINAL SYMBOL TABLE
|
|
__constant char * const SCREEN = (char *) 1024
|
|
void line(char x0 , char x1)
|
|
char line::x
|
|
char line::x#1 // reg byte x 20002.0
|
|
char line::x#2 // reg byte x 10001.0
|
|
char line::x0
|
|
__constant char line::x0#0 = 0 // x0
|
|
char line::x1
|
|
__constant char line::x1#0 = $a // x1
|
|
void main()
|
|
char main::i
|
|
char main::i#1 // reg byte x 16.5
|
|
char main::i#2 // reg byte x 18.333333333333332
|
|
void plot(char x)
|
|
char plot::$0 // reg byte a 200002.0
|
|
char plot::idx
|
|
char plot::idx#0 // reg byte y 150001.5
|
|
char plot::x
|
|
char plot::x#1 // reg byte x 110002.0
|
|
__constant char * const plots = (char *) 4096
|
|
|
|
reg byte x [ main::i#2 main::i#1 ]
|
|
reg byte x [ line::x#2 line::x#1 ]
|
|
reg byte x [ plot::x#1 ]
|
|
reg byte y [ plot::idx#0 ]
|
|
reg byte a [ plot::$0 ]
|
|
|
|
|
|
FINAL ASSEMBLER
|
|
Score: 2013
|
|
|
|
// File Comments
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="const-identification.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
|
|
.label plots = $1000
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
main: {
|
|
// [1] phi from main to main::@1 [phi:main->main::@1]
|
|
// [1] phi main::i#2 = 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
|
|
ldx #0
|
|
// [1] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
|
// [1] phi main::i#2 = main::i#1 [phi:main::@1->main::@1#0] -- register_copy
|
|
// main::@1
|
|
__b1:
|
|
// plots[i] = i
|
|
// [2] plots[main::i#2] = main::i#2 -- pbuc1_derefidx_vbuxx=vbuxx
|
|
txa
|
|
sta plots,x
|
|
// SCREEN[i] = 0
|
|
// [3] SCREEN[main::i#2] = 0 -- pbuc1_derefidx_vbuxx=vbuc2
|
|
lda #0
|
|
sta SCREEN,x
|
|
// for(byte i : 0..39)
|
|
// [4] main::i#1 = ++ main::i#2 -- vbuxx=_inc_vbuxx
|
|
inx
|
|
// [5] if(main::i#1!=$28) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
|
|
cpx #$28
|
|
bne __b1
|
|
// [6] phi from main::@1 main::@2 to main::@2 [phi:main::@1/main::@2->main::@2]
|
|
// main::@2
|
|
__b2:
|
|
// line(0, 10)
|
|
// [7] call line
|
|
// [8] phi from main::@2 to line [phi:main::@2->line]
|
|
jsr line
|
|
jmp __b2
|
|
}
|
|
// line
|
|
// void line(char x0, char x1)
|
|
line: {
|
|
.const x0 = 0
|
|
.const x1 = $a
|
|
// [9] phi from line to line::@1 [phi:line->line::@1]
|
|
// [9] phi line::x#2 = line::x0#0 [phi:line->line::@1#0] -- vbuxx=vbuc1
|
|
ldx #x0
|
|
// line::@1
|
|
__b1:
|
|
// for(byte x = x0; x<=x1; x++)
|
|
// [10] if(line::x#2<line::x1#0+1) goto line::@2 -- vbuxx_lt_vbuc1_then_la1
|
|
cpx #x1+1
|
|
bcc __b2
|
|
// line::@return
|
|
// }
|
|
// [11] return
|
|
rts
|
|
// line::@2
|
|
__b2:
|
|
// plot(x)
|
|
// [12] plot::x#1 = line::x#2
|
|
// [13] call plot
|
|
jsr plot
|
|
// line::@3
|
|
// for(byte x = x0; x<=x1; x++)
|
|
// [14] line::x#1 = ++ line::x#2 -- vbuxx=_inc_vbuxx
|
|
inx
|
|
// [9] phi from line::@3 to line::@1 [phi:line::@3->line::@1]
|
|
// [9] phi line::x#2 = line::x#1 [phi:line::@3->line::@1#0] -- register_copy
|
|
jmp __b1
|
|
}
|
|
// plot
|
|
// void plot(__register(X) char x)
|
|
plot: {
|
|
// byte idx = plots[x]
|
|
// [15] plot::idx#0 = plots[plot::x#1] -- vbuyy=pbuc1_derefidx_vbuxx
|
|
ldy plots,x
|
|
// SCREEN[idx]+1
|
|
// [16] plot::$0 = SCREEN[plot::idx#0] + 1 -- vbuaa=pbuc1_derefidx_vbuyy_plus_1
|
|
lda SCREEN,y
|
|
clc
|
|
adc #1
|
|
// SCREEN[idx] = SCREEN[idx]+1
|
|
// [17] SCREEN[plot::idx#0] = plot::$0 -- pbuc1_derefidx_vbuyy=vbuaa
|
|
sta SCREEN,y
|
|
// plot::@return
|
|
// }
|
|
// [18] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|