mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-09-09 08:54:40 +00:00
481 lines
17 KiB
Plaintext
481 lines
17 KiB
Plaintext
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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to:@1
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(void()) main()
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main: scope:[main] from @1
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(byte) main::idx#0 ← (byte) 0
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(byte) main::i#0 ← (byte) 0
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to:main::@1
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main::@1: scope:[main] from main main::@4
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(byte) main::idx#4 ← phi( main/(byte) main::idx#0 main::@4/(byte) main::idx#5 )
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(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@4/(byte) main::i#1 )
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(bool~) main::$2 ← (number) 0 != *((const to_nomodify byte*) MESSAGE + (byte) main::i#2)
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if((bool~) main::$2) goto main::@2
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to:main::@return
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main::@2: scope:[main] from main::@1
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(byte) main::idx#3 ← phi( main::@1/(byte) main::idx#4 )
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(byte) main::i#3 ← phi( main::@1/(byte) main::i#2 )
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(bool~) main::$0 ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#3) == (byte) ' '
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(bool~) main::$1 ← ! (bool~) main::$0
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if((bool~) main::$1) goto main::@3
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to:main::@4
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main::@3: scope:[main] from main::@2
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(byte) main::idx#2 ← phi( main::@2/(byte) main::idx#3 )
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(byte) main::i#4 ← phi( main::@2/(byte) main::i#3 )
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*((const nomodify byte*) SCREEN + (byte) main::idx#2) ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#4)
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(byte) main::idx#1 ← ++ (byte) main::idx#2
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to:main::@4
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main::@4: scope:[main] from main::@2 main::@3
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(byte) main::idx#5 ← phi( main::@2/(byte) main::idx#3 main::@3/(byte) main::idx#1 )
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(byte) main::i#5 ← phi( main::@2/(byte) main::i#3 main::@3/(byte) main::i#4 )
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(byte) main::i#1 ← ++ (byte) main::i#5
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to:main::@1
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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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@1: scope:[] from @begin
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call main
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to:@2
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@2: scope:[] from @1
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to:@end
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@end: scope:[] from @2
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SYMBOL TABLE SSA
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(label) @1
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(label) @2
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(label) @begin
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(label) @end
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(const to_nomodify byte*) MESSAGE[] = (byte*) "hello brave new world!"
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(const nomodify byte*) SCREEN = (byte*)(number) $400
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(void()) main()
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(bool~) main::$0
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(bool~) main::$1
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(bool~) main::$2
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(label) main::@1
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(label) main::@2
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(label) main::@3
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(label) main::@4
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(label) main::@return
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(byte) main::i
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(byte) main::i#0
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(byte) main::i#1
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(byte) main::i#2
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(byte) main::i#3
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(byte) main::i#4
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(byte) main::i#5
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(byte) main::idx
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(byte) main::idx#0
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(byte) main::idx#1
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(byte) main::idx#2
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(byte) main::idx#3
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(byte) main::idx#4
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(byte) main::idx#5
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Adding number conversion cast (unumber) 0 in (bool~) main::$2 ← (number) 0 != *((const to_nomodify byte*) MESSAGE + (byte) main::i#2)
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant pointer cast (byte*) 1024
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Simplifying constant integer cast 0
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) 0
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Inversing boolean not [7] (bool~) main::$1 ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#3) != (byte) ' ' from [6] (bool~) main::$0 ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#3) == (byte) ' '
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Successful SSA optimization Pass2UnaryNotSimplification
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Alias main::i#2 = main::i#3 main::i#4
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Alias main::idx#2 = main::idx#3 main::idx#4
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Successful SSA optimization Pass2AliasElimination
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Alias main::i#2 = main::i#5
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Successful SSA optimization Pass2AliasElimination
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Simple Condition (bool~) main::$2 [4] if((byte) 0!=*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)) goto main::@2
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Simple Condition (bool~) main::$1 [6] if(*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)!=(byte) ' ') goto main::@3
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Successful SSA optimization Pass2ConditionalJumpSimplification
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Negating conditional jump and destination [6] if(*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)==(byte) ' ') goto main::@4
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Successful SSA optimization Pass2ConditionalJumpSequenceImprovement
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Constant (const byte) main::idx#0 = 0
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Constant (const byte) main::i#0 = 0
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Successful SSA optimization Pass2ConstantIdentification
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Inlining constant with var siblings (const byte) main::idx#0
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Inlining constant with var siblings (const byte) main::i#0
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Constant inlined main::i#0 = (byte) 0
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Constant inlined main::idx#0 = (byte) 0
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Successful SSA optimization Pass2ConstantInlining
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Added new block during phi lifting main::@5(between main::@2 and main::@4)
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Adding NOP phi() at start of @begin
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Adding NOP phi() at start of @1
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Adding NOP phi() at start of @2
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Adding NOP phi() at start of @end
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Adding NOP phi() at start of main
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CALL GRAPH
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Calls in [] to main:2
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Created 3 initial phi equivalence classes
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Coalesced [12] main::idx#8 ← main::idx#1
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Coalesced [15] main::i#6 ← main::i#1
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Coalesced [16] main::idx#6 ← main::idx#5
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Coalesced (already) [17] main::idx#7 ← main::idx#2
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Coalesced down to 2 phi equivalence classes
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Culled Empty Block (label) @2
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Culled Empty Block (label) main::@5
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Adding NOP phi() at start of @begin
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Adding NOP phi() at start of @1
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Adding NOP phi() at start of @end
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Adding NOP phi() at start of main
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FINAL CONTROL FLOW GRAPH
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@begin: scope:[] from
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[0] phi()
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to:@1
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@1: scope:[] from @begin
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[1] phi()
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[2] call main
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to:@end
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@end: scope:[] from @1
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[3] phi()
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(void()) main()
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main: scope:[main] from @1
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[4] phi()
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to:main::@1
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main::@1: scope:[main] from main main::@4
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[5] (byte) main::idx#2 ← phi( main/(byte) 0 main::@4/(byte) main::idx#5 )
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[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@4/(byte) main::i#1 )
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[6] if((byte) 0!=*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)) goto main::@2
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to:main::@return
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main::@return: scope:[main] from main::@1
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[7] return
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to:@return
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main::@2: scope:[main] from main::@1
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[8] if(*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)==(byte) ' ') goto main::@4
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to:main::@3
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main::@3: scope:[main] from main::@2
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[9] *((const nomodify byte*) SCREEN + (byte) main::idx#2) ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#2)
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[10] (byte) main::idx#1 ← ++ (byte) main::idx#2
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to:main::@4
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main::@4: scope:[main] from main::@2 main::@3
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[11] (byte) main::idx#5 ← phi( main::@2/(byte) main::idx#2 main::@3/(byte) main::idx#1 )
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[12] (byte) main::i#1 ← ++ (byte) main::i#2
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to:main::@1
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VARIABLE REGISTER WEIGHTS
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(void()) main()
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(byte) main::i
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(byte) main::i#1 202.0
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(byte) main::i#2 84.16666666666666
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(byte) main::idx
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(byte) main::idx#1 202.0
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(byte) main::idx#2 101.0
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(byte) main::idx#5 151.5
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Initial phi equivalence classes
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[ main::i#2 main::i#1 ]
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[ main::idx#2 main::idx#5 main::idx#1 ]
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Complete equivalence classes
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[ main::i#2 main::i#1 ]
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[ main::idx#2 main::idx#5 main::idx#1 ]
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Allocated zp[1]:2 [ main::i#2 main::i#1 ]
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Allocated zp[1]:3 [ main::idx#2 main::idx#5 main::idx#1 ]
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INITIAL ASM
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Target platform is c64basic / MOS6502X
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// File Comments
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// Tests continue statement in a simple for()-loop
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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// Global Constants & labels
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.label SCREEN = $400
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// @begin
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__bbegin:
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// [1] phi from @begin to @1 [phi:@begin->@1]
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__b1_from___bbegin:
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jmp __b1
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// @1
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__b1:
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// [2] call main
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// [4] phi from @1 to main [phi:@1->main]
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main_from___b1:
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jsr main
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// [3] phi from @1 to @end [phi:@1->@end]
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__bend_from___b1:
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jmp __bend
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// @end
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__bend:
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// main
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main: {
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.label idx = 3
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.label i = 2
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// [5] phi from main to main::@1 [phi:main->main::@1]
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__b1_from_main:
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// [5] phi (byte) main::idx#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
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lda #0
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sta.z idx
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// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuz1=vbuc1
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lda #0
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sta.z i
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jmp __b1
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// main::@1
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__b1:
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// [6] if((byte) 0!=*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)) goto main::@2 -- vbuc1_neq_pbuc2_derefidx_vbuz1_then_la1
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lda #0
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ldy.z i
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cmp MESSAGE,y
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bne __b2
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jmp __breturn
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// main::@return
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__breturn:
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// [7] return
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rts
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// main::@2
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__b2:
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// [8] if(*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)==(byte) ' ') goto main::@4 -- pbuc1_derefidx_vbuz1_eq_vbuc2_then_la1
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ldy.z i
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lda MESSAGE,y
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cmp #' '
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beq __b4_from___b2
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jmp __b3
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// main::@3
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__b3:
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// [9] *((const nomodify byte*) SCREEN + (byte) main::idx#2) ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#2) -- pbuc1_derefidx_vbuz1=pbuc2_derefidx_vbuz2
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ldy.z i
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lda MESSAGE,y
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ldy.z idx
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sta SCREEN,y
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// [10] (byte) main::idx#1 ← ++ (byte) main::idx#2 -- vbuz1=_inc_vbuz1
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inc.z idx
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// [11] phi from main::@2 main::@3 to main::@4 [phi:main::@2/main::@3->main::@4]
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__b4_from___b2:
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__b4_from___b3:
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// [11] phi (byte) main::idx#5 = (byte) main::idx#2 [phi:main::@2/main::@3->main::@4#0] -- register_copy
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jmp __b4
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// main::@4
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__b4:
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// [12] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
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inc.z i
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// [5] phi from main::@4 to main::@1 [phi:main::@4->main::@1]
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__b1_from___b4:
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// [5] phi (byte) main::idx#2 = (byte) main::idx#5 [phi:main::@4->main::@1#0] -- register_copy
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// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@4->main::@1#1] -- register_copy
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jmp __b1
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}
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// File Data
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MESSAGE: .text "hello brave new world!"
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.byte 0
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [6] if((byte) 0!=*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)) goto main::@2 [ main::i#2 main::idx#2 ] ( main:2 [ main::i#2 main::idx#2 ] { } ) always clobbers reg byte a
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Removing always clobbered register reg byte a as potential for zp[1]:2 [ main::i#2 main::i#1 ]
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Removing always clobbered register reg byte a as potential for zp[1]:3 [ main::idx#2 main::idx#5 main::idx#1 ]
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Statement [8] if(*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)==(byte) ' ') goto main::@4 [ main::i#2 main::idx#2 ] ( main:2 [ main::i#2 main::idx#2 ] { } ) always clobbers reg byte a
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Statement [9] *((const nomodify byte*) SCREEN + (byte) main::idx#2) ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#2) [ main::i#2 main::idx#2 ] ( main:2 [ main::i#2 main::idx#2 ] { } ) always clobbers reg byte a
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Statement [6] if((byte) 0!=*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)) goto main::@2 [ main::i#2 main::idx#2 ] ( main:2 [ main::i#2 main::idx#2 ] { } ) always clobbers reg byte a
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Statement [8] if(*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)==(byte) ' ') goto main::@4 [ main::i#2 main::idx#2 ] ( main:2 [ main::i#2 main::idx#2 ] { } ) always clobbers reg byte a
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Statement [9] *((const nomodify byte*) SCREEN + (byte) main::idx#2) ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#2) [ main::i#2 main::idx#2 ] ( main:2 [ main::i#2 main::idx#2 ] { } ) always clobbers reg byte a
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Potential registers zp[1]:2 [ main::i#2 main::i#1 ] : zp[1]:2 , reg byte x , reg byte y ,
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Potential registers zp[1]:3 [ main::idx#2 main::idx#5 main::idx#1 ] : zp[1]:3 , reg byte x , reg byte y ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [main] 454.5: zp[1]:3 [ main::idx#2 main::idx#5 main::idx#1 ] 286.17: zp[1]:2 [ main::i#2 main::i#1 ]
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Uplift Scope []
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Uplifting [main] best 523 combination reg byte y [ main::idx#2 main::idx#5 main::idx#1 ] reg byte x [ main::i#2 main::i#1 ]
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Uplifting [] best 523 combination
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Tests continue statement in a simple for()-loop
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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// Global Constants & labels
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.label SCREEN = $400
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// @begin
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__bbegin:
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// [1] phi from @begin to @1 [phi:@begin->@1]
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__b1_from___bbegin:
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jmp __b1
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// @1
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__b1:
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// [2] call main
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// [4] phi from @1 to main [phi:@1->main]
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main_from___b1:
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jsr main
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// [3] phi from @1 to @end [phi:@1->@end]
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__bend_from___b1:
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jmp __bend
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// @end
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__bend:
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// main
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main: {
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// [5] phi from main to main::@1 [phi:main->main::@1]
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__b1_from_main:
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// [5] phi (byte) main::idx#2 = (byte) 0 [phi:main->main::@1#0] -- vbuyy=vbuc1
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ldy #0
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// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuxx=vbuc1
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ldx #0
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jmp __b1
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// main::@1
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__b1:
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// [6] if((byte) 0!=*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)) goto main::@2 -- vbuc1_neq_pbuc2_derefidx_vbuxx_then_la1
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lda MESSAGE,x
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cmp #0
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bne __b2
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jmp __breturn
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// main::@return
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__breturn:
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// [7] return
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rts
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// main::@2
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__b2:
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// [8] if(*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)==(byte) ' ') goto main::@4 -- pbuc1_derefidx_vbuxx_eq_vbuc2_then_la1
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lda MESSAGE,x
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cmp #' '
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beq __b4_from___b2
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jmp __b3
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// main::@3
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__b3:
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// [9] *((const nomodify byte*) SCREEN + (byte) main::idx#2) ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#2) -- pbuc1_derefidx_vbuyy=pbuc2_derefidx_vbuxx
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lda MESSAGE,x
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sta SCREEN,y
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// [10] (byte) main::idx#1 ← ++ (byte) main::idx#2 -- vbuyy=_inc_vbuyy
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iny
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// [11] phi from main::@2 main::@3 to main::@4 [phi:main::@2/main::@3->main::@4]
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__b4_from___b2:
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__b4_from___b3:
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// [11] phi (byte) main::idx#5 = (byte) main::idx#2 [phi:main::@2/main::@3->main::@4#0] -- register_copy
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jmp __b4
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// main::@4
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__b4:
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// [12] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
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inx
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// [5] phi from main::@4 to main::@1 [phi:main::@4->main::@1]
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__b1_from___b4:
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// [5] phi (byte) main::idx#2 = (byte) main::idx#5 [phi:main::@4->main::@1#0] -- register_copy
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// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@4->main::@1#1] -- register_copy
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jmp __b1
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}
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// File Data
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MESSAGE: .text "hello brave new world!"
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.byte 0
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ASSEMBLER OPTIMIZATIONS
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Removing instruction jmp __b1
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Removing instruction jmp __bend
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Removing instruction jmp __b1
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Removing instruction jmp __breturn
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Removing instruction jmp __b3
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Removing instruction jmp __b4
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Succesful ASM optimization Pass5NextJumpElimination
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Replacing label __b4_from___b2 with __b4
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Removing instruction __b1_from___bbegin:
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Removing instruction __b1:
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Removing instruction main_from___b1:
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Removing instruction __bend_from___b1:
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Removing instruction __b4_from___b2:
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Removing instruction __b4_from___b3:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction __bbegin:
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Removing instruction __bend:
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Removing instruction __b1_from_main:
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Removing instruction __breturn:
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Removing instruction __b3:
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Removing instruction __b1_from___b4:
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Succesful ASM optimization Pass5UnusedLabelElimination
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Removing instruction jsr main
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Succesful ASM optimization Pass5SkipBegin
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FINAL SYMBOL TABLE
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(label) @1
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(label) @begin
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(label) @end
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(const to_nomodify byte*) MESSAGE[] = (byte*) "hello brave new world!"
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(const nomodify byte*) SCREEN = (byte*) 1024
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(void()) main()
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(label) main::@1
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(label) main::@2
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(label) main::@3
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(label) main::@4
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(label) main::@return
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(byte) main::i
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(byte) main::i#1 reg byte x 202.0
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(byte) main::i#2 reg byte x 84.16666666666666
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(byte) main::idx
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(byte) main::idx#1 reg byte y 202.0
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(byte) main::idx#2 reg byte y 101.0
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(byte) main::idx#5 reg byte y 151.5
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reg byte x [ main::i#2 main::i#1 ]
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reg byte y [ main::idx#2 main::idx#5 main::idx#1 ]
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FINAL ASSEMBLER
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Score: 391
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// File Comments
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// Tests continue statement in a simple for()-loop
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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// Global Constants & labels
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.label SCREEN = $400
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// @begin
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// [1] phi from @begin to @1 [phi:@begin->@1]
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// @1
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// [2] call main
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// [4] phi from @1 to main [phi:@1->main]
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// [3] phi from @1 to @end [phi:@1->@end]
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// @end
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// main
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main: {
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// [5] phi from main to main::@1 [phi:main->main::@1]
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// [5] phi (byte) main::idx#2 = (byte) 0 [phi:main->main::@1#0] -- vbuyy=vbuc1
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ldy #0
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// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuxx=vbuc1
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ldx #0
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// main::@1
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__b1:
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// for( char i =0; MESSAGE[i]; i++)
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// [6] if((byte) 0!=*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)) goto main::@2 -- vbuc1_neq_pbuc2_derefidx_vbuxx_then_la1
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lda MESSAGE,x
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cmp #0
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bne __b2
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// main::@return
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// }
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// [7] return
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rts
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// main::@2
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__b2:
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// if(MESSAGE[i]==' ')
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// [8] if(*((const to_nomodify byte*) MESSAGE + (byte) main::i#2)==(byte) ' ') goto main::@4 -- pbuc1_derefidx_vbuxx_eq_vbuc2_then_la1
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lda MESSAGE,x
|
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cmp #' '
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beq __b4
|
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// main::@3
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// SCREEN[idx++] = MESSAGE[i]
|
|
// [9] *((const nomodify byte*) SCREEN + (byte) main::idx#2) ← *((const to_nomodify byte*) MESSAGE + (byte) main::i#2) -- pbuc1_derefidx_vbuyy=pbuc2_derefidx_vbuxx
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lda MESSAGE,x
|
|
sta SCREEN,y
|
|
// SCREEN[idx++] = MESSAGE[i];
|
|
// [10] (byte) main::idx#1 ← ++ (byte) main::idx#2 -- vbuyy=_inc_vbuyy
|
|
iny
|
|
// [11] phi from main::@2 main::@3 to main::@4 [phi:main::@2/main::@3->main::@4]
|
|
// [11] phi (byte) main::idx#5 = (byte) main::idx#2 [phi:main::@2/main::@3->main::@4#0] -- register_copy
|
|
// main::@4
|
|
__b4:
|
|
// for( char i =0; MESSAGE[i]; i++)
|
|
// [12] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
|
|
inx
|
|
// [5] phi from main::@4 to main::@1 [phi:main::@4->main::@1]
|
|
// [5] phi (byte) main::idx#2 = (byte) main::idx#5 [phi:main::@4->main::@1#0] -- register_copy
|
|
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@4->main::@1#1] -- register_copy
|
|
jmp __b1
|
|
}
|
|
// File Data
|
|
MESSAGE: .text "hello brave new world!"
|
|
.byte 0
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