mirror of https://gitlab.com/camelot/kickc.git
265 lines
8.5 KiB
Plaintext
265 lines
8.5 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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main::SCREEN[main::i#2] = 'a'
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main::i#1 = main::i#2 + rangenext(0,2)
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main::$0 = main::i#1 != rangelast(0,2)
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unroll if(main::$0) goto main::@1
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to:main::@return
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main::@return: scope:[main] from main::@1
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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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bool main::$0
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__constant char *main::SCREEN = (char *)$400
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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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Simplifying constant pointer cast (char *) 1024
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Successful SSA optimization PassNCastSimplification
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Simple Condition main::$0 [5] unroll if(main::i#1!=rangelast(0,2)) goto main::@1
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Successful SSA optimization Pass2ConditionalJumpSimplification
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Constant main::i#0 = 0
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Successful SSA optimization Pass2ConstantIdentification
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Resolved ranged next value [3] main::i#1 = ++ main::i#2 to ++
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Resolved ranged comparison value [5] unroll if(main::i#1!=rangelast(0,2)) goto main::@1 to 3
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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) 3 in [3] unroll if(main::i#1!=3) goto main::@1
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant integer cast 3
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (char) 3
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Unrolling loop Loop head: main::@1 tails: main::@1 blocks: main::@1
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Successful SSA optimization Pass2LoopUnroll
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Identical Phi Values main::i#2 main::i#0
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Successful SSA optimization Pass2IdenticalPhiElimination
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Negating conditional jump and destination [3] if(main::i#1==3) goto main::@return
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Successful SSA optimization Pass2ConditionalJumpSequenceImprovement
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Constant right-side identified [2] main::i#1 = ++ main::i#0
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Successful SSA optimization Pass2ConstantRValueConsolidation
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Constant main::i#1 = ++main::i#0
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Successful SSA optimization Pass2ConstantIdentification
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if() condition always false - eliminating [3] if(main::i#1==3) goto main::@return
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Successful SSA optimization Pass2ConstantIfs
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Simplifying expression containing zero main::SCREEN in [1] main::SCREEN[main::i#0] = 'a'
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Successful SSA optimization PassNSimplifyExpressionWithZero
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Unrolling loop Loop head: main::@1_1 tails: main::@1_1 blocks: main::@1_1
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Successful SSA optimization Pass2LoopUnroll
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Identical Phi Values main::i#3 main::i#1
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Successful SSA optimization Pass2IdenticalPhiElimination
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Negating conditional jump and destination [4] if(main::i#4==3) goto main::@return
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Successful SSA optimization Pass2ConditionalJumpSequenceImprovement
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Constant right-side identified [3] main::i#4 = ++ main::i#1
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Successful SSA optimization Pass2ConstantRValueConsolidation
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Constant main::i#4 = ++main::i#1
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Successful SSA optimization Pass2ConstantIdentification
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if() condition always false - eliminating [4] if(main::i#4==3) goto main::@return
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Successful SSA optimization Pass2ConstantIfs
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Unrolling loop Loop head: main::@1_2 tails: main::@1_2 blocks: main::@1_2
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Successful SSA optimization Pass2LoopUnroll
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Identical Phi Values main::i#5 main::i#4
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Successful SSA optimization Pass2IdenticalPhiElimination
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Negating conditional jump and destination [5] if(main::i#6==3) goto main::@return
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Successful SSA optimization Pass2ConditionalJumpSequenceImprovement
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Constant right-side identified [4] main::i#6 = ++ main::i#4
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Successful SSA optimization Pass2ConstantRValueConsolidation
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Constant main::i#6 = ++main::i#4
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Successful SSA optimization Pass2ConstantIdentification
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Removing PHI-reference to removed block (main::@1_2) in block main::@1_3
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if() condition always true - replacing block destination [5] if(main::i#6==3) goto main::@return
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Successful SSA optimization Pass2ConstantIfs
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Eliminating variable main::i#7 from unused block main::@1_3
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Eliminating variable main::i#8 from unused block main::@1_3
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Removing unused block main::@1_3
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Successful SSA optimization Pass2EliminateUnusedBlocks
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Eliminating unused constant main::i#6
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Successful SSA optimization PassNEliminateUnusedVars
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Inlining constant with different constant siblings main::i#0
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Inlining constant with different constant siblings main::i#1
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Inlining constant with different constant siblings main::i#4
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Constant inlined main::i#4 = ++++0
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Constant inlined main::i#0 = 0
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Constant inlined main::i#1 = ++0
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Successful SSA optimization Pass2ConstantInlining
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Consolidated array index constant in *(main::SCREEN+++0)
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Consolidated array index constant in *(main::SCREEN+++++0)
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Successful SSA optimization Pass2ConstantAdditionElimination
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Simplifying constant integer increment ++0
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Simplifying constant integer increment ++0
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Successful SSA optimization Pass2ConstantSimplification
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Simplifying constant integer increment ++1
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Successful SSA optimization Pass2ConstantSimplification
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Adding NOP phi() at start of main
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CALL GRAPH
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Created 0 initial phi equivalence classes
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Coalesced down to 0 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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to:main::@1
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main::@1: scope:[main] from main
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[1] *main::SCREEN = 'a'
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to:main::@1_1
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main::@1_1: scope:[main] from main::@1
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[2] *(main::SCREEN+1) = 'a'
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to:main::@1_2
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main::@1_2: scope:[main] from main::@1_1
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[3] *(main::SCREEN+2) = 'a'
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to:main::@return
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main::@return: scope:[main] from main::@1_2
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[4] 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::i
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Initial phi equivalence classes
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Complete equivalence classes
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [1] *main::SCREEN = 'a' [ ] ( [ ] { } ) always clobbers reg byte a
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Statement [2] *(main::SCREEN+1) = 'a' [ ] ( [ ] { } ) always clobbers reg byte a
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Statement [3] *(main::SCREEN+2) = 'a' [ ] ( [ ] { } ) always clobbers reg byte a
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REGISTER UPLIFT SCOPES
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Uplift Scope [main]
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Uplift Scope []
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Uplifting [main] best 63 combination
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Uplifting [] best 63 combination
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Minimal unrolled ranged for() loop
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// Upstart
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// Commodore 64 PRG executable file
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.file [name="unroll-for-min.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 SCREEN = $400
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jmp __b1
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// main::@1
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__b1:
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// [1] *main::SCREEN = 'a' -- _deref_pbuc1=vbuc2
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lda #'a'
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sta SCREEN
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jmp __b1_1
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// main::@1_1
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__b1_1:
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// [2] *(main::SCREEN+1) = 'a' -- _deref_pbuc1=vbuc2
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lda #'a'
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sta SCREEN+1
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jmp __b1_2
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// main::@1_2
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__b1_2:
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// [3] *(main::SCREEN+2) = 'a' -- _deref_pbuc1=vbuc2
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lda #'a'
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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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// [4] 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 __b1_1
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Removing instruction jmp __b1_2
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Removing instruction jmp __breturn
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Succesful ASM optimization Pass5NextJumpElimination
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Removing instruction __b1:
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Removing instruction __b1_1:
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Removing instruction __b1_2:
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Removing instruction __breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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Removing instruction lda #'a'
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Removing instruction lda #'a'
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Succesful ASM optimization Pass5UnnecesaryLoadElimination
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FINAL SYMBOL TABLE
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void main()
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__constant char *main::SCREEN = (char *) 1024
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char main::i
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FINAL ASSEMBLER
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Score: 20
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// File Comments
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// Minimal unrolled ranged for() loop
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// Upstart
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// Commodore 64 PRG executable file
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.file [name="unroll-for-min.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 SCREEN = $400
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// main::@1
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// SCREEN[i] = 'a'
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// [1] *main::SCREEN = 'a' -- _deref_pbuc1=vbuc2
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lda #'a'
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sta SCREEN
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// main::@1_1
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// [2] *(main::SCREEN+1) = 'a' -- _deref_pbuc1=vbuc2
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sta SCREEN+1
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// main::@1_2
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// [3] *(main::SCREEN+2) = 'a' -- _deref_pbuc1=vbuc2
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sta SCREEN+2
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// main::@return
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// }
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// [4] return
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rts
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}
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// File Data
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