mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-07-12 06:29:05 +00:00
404 lines
12 KiB
Plaintext
404 lines
12 KiB
Plaintext
Setting inferred volatile on symbol affected by address-of (byte*~) $0 ← & (byte) idx
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Culled Empty Block (label) main::@2
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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(byte) idx ← (byte) 0
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(byte*~) $0 ← & (byte) idx
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(byte*) idx_p#0 ← (byte*~) $0
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(byte*) SCREEN ← ((byte*)) (number) $400
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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*) idx_p#2 ← phi( @1/(byte*) idx_p#3 )
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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::@1
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(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@1/(byte) main::i#1 )
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(byte*) idx_p#1 ← phi( main/(byte*) idx_p#2 main::@1/(byte*) idx_p#1 )
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*((byte*) SCREEN + (byte) main::i#2) ← *((byte*) idx_p#1)
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*((byte*) idx_p#1) ← *((byte*) idx_p#1) + (byte) main::i#2
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(byte) main::i#1 ← (byte) main::i#2 + rangenext(0,5)
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(bool~) main::$0 ← (byte) main::i#1 != rangelast(0,5)
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if((bool~) 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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@1: scope:[] from @begin
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(byte*) idx_p#3 ← phi( @begin/(byte*) idx_p#0 )
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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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(byte*~) $0
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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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(byte*) SCREEN
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(byte) idx notregister
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(byte*) idx_p
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(byte*) idx_p#0
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(byte*) idx_p#1
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(byte*) idx_p#2
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(byte*) idx_p#3
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(void()) main()
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(bool~) main::$0
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(label) main::@1
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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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Inlining cast (byte*) SCREEN ← (byte*)(number) $400
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Successful SSA optimization Pass2InlineCast
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Simplifying constant pointer cast (byte*) 1024
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Successful SSA optimization PassNCastSimplification
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Alias (byte*) idx_p#0 = (byte*~) $0 (byte*) idx_p#3
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Successful SSA optimization Pass2AliasElimination
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Identical Phi Values (byte*) idx_p#2 (byte*) idx_p#0
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Identical Phi Values (byte*) idx_p#1 (byte*) idx_p#2
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Successful SSA optimization Pass2IdenticalPhiElimination
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Simple Condition (bool~) main::$0 [11] if((byte) main::i#1!=rangelast(0,5)) goto main::@1
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Successful SSA optimization Pass2ConditionalJumpSimplification
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Constant right-side identified [1] (byte*) idx_p#0 ← & (byte) idx
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Successful SSA optimization Pass2ConstantRValueConsolidation
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Constant (const byte*) idx_p#0 = &idx
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Constant (const byte*) SCREEN = (byte*) 1024
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Constant (const byte) main::i#0 = 0
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Successful SSA optimization Pass2ConstantIdentification
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Resolved ranged next value [9] main::i#1 ← ++ main::i#2 to ++
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Resolved ranged comparison value [11] if(main::i#1!=rangelast(0,5)) goto main::@1 to (number) 6
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Adding number conversion cast (unumber) 6 in if((byte) main::i#1!=(number) 6) goto main::@1
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant integer cast 6
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) 6
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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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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Successful SSA optimization Pass2ConstantInlining
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Added new block during phi lifting main::@3(between main::@1 and main::@1)
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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 1 initial phi equivalence classes
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Coalesced [12] main::i#3 ← main::i#1
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Coalesced down to 1 phi equivalence classes
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Culled Empty Block (label) @2
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Culled Empty Block (label) main::@3
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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] (byte) idx ← (byte) 0
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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::@1
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[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
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[6] *((const byte*) SCREEN + (byte) main::i#2) ← *((const byte*) idx_p#0)
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[7] *((const byte*) idx_p#0) ← *((const byte*) idx_p#0) + (byte) main::i#2
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[8] (byte) main::i#1 ← ++ (byte) main::i#2
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[9] if((byte) main::i#1!=(byte) 6) 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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[10] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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(byte) idx notregister 20.0
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(byte*) idx_p
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(void()) main()
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(byte) main::i
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(byte) main::i#1 16.5
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(byte) main::i#2 14.666666666666666
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Initial phi equivalence classes
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[ main::i#2 main::i#1 ]
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Added variable idx to zero page equivalence class [ idx ]
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Complete equivalence classes
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[ main::i#2 main::i#1 ]
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[ idx ]
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Allocated zp[1]:2 [ main::i#2 main::i#1 ]
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Allocated mem[1] [ idx ]
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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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// Test declaring a variable as "memory", meaning it will be stored in memory and accessed through an implicit pointer (using load/store)
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// Test a pointer to a memory variable
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(__bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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.label idx_p = idx
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.label SCREEN = $400
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// @begin
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__bbegin:
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// [0] (byte) idx ← (byte) 0 -- vbum1=vbuc1
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lda #0
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sta idx
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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 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::i#2 = (byte) 0 [phi:main->main::@1#0] -- 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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// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
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__b1_from___b1:
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// [5] phi (byte) main::i#2 = (byte) 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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// [6] *((const byte*) SCREEN + (byte) main::i#2) ← *((const byte*) idx_p#0) -- pbuc1_derefidx_vbuz1=_deref_pbuc2
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lda idx_p
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ldy.z i
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sta SCREEN,y
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// [7] *((const byte*) idx_p#0) ← *((const byte*) idx_p#0) + (byte) main::i#2 -- _deref_pbuc1=_deref_pbuc1_plus_vbuz1
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lda idx_p
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clc
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adc.z i
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sta idx_p
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// [8] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
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inc.z i
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// [9] if((byte) main::i#1!=(byte) 6) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
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lda #6
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cmp.z i
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bne __b1_from___b1
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jmp __breturn
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// main::@return
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__breturn:
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// [10] return
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rts
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}
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// File Data
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idx: .byte 0
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [0] (byte) idx ← (byte) 0 [ ] ( [ ] ) always clobbers reg byte a
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Statement [6] *((const byte*) SCREEN + (byte) main::i#2) ← *((const byte*) idx_p#0) [ main::i#2 ] ( main: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]:2 [ main::i#2 main::i#1 ]
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Statement [7] *((const byte*) idx_p#0) ← *((const byte*) idx_p#0) + (byte) main::i#2 [ main::i#2 ] ( main:2 [ main::i#2 ] ) always clobbers reg byte a
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Statement [0] (byte) idx ← (byte) 0 [ ] ( [ ] ) always clobbers reg byte a
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Statement [6] *((const byte*) SCREEN + (byte) main::i#2) ← *((const byte*) idx_p#0) [ main::i#2 ] ( main:2 [ main::i#2 ] ) always clobbers reg byte a
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Statement [7] *((const byte*) idx_p#0) ← *((const byte*) idx_p#0) + (byte) main::i#2 [ main::i#2 ] ( main:2 [ main::i#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 mem[1] [ idx ] : mem[1] ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [main] 31.17: zp[1]:2 [ main::i#2 main::i#1 ]
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Uplift Scope [] 20: mem[1] [ idx ]
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Uplifting [main] best 409 combination reg byte x [ main::i#2 main::i#1 ]
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Uplifting [] best 409 combination mem[1] [ idx ]
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Attempting to uplift remaining variables inmem[1] [ idx ]
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Uplifting [] best 409 combination mem[1] [ idx ]
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Test declaring a variable as "memory", meaning it will be stored in memory and accessed through an implicit pointer (using load/store)
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// Test a pointer to a memory variable
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(__bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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.label idx_p = idx
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.label SCREEN = $400
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// @begin
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__bbegin:
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// [0] (byte) idx ← (byte) 0 -- vbum1=vbuc1
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lda #0
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sta idx
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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::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
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ldx #0
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jmp __b1
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// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
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__b1_from___b1:
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// [5] phi (byte) main::i#2 = (byte) 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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// [6] *((const byte*) SCREEN + (byte) main::i#2) ← *((const byte*) idx_p#0) -- pbuc1_derefidx_vbuxx=_deref_pbuc2
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lda idx_p
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sta SCREEN,x
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// [7] *((const byte*) idx_p#0) ← *((const byte*) idx_p#0) + (byte) main::i#2 -- _deref_pbuc1=_deref_pbuc1_plus_vbuxx
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txa
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clc
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adc idx_p
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sta idx_p
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// [8] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
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inx
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// [9] if((byte) main::i#1!=(byte) 6) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
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cpx #6
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bne __b1_from___b1
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jmp __breturn
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// main::@return
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__breturn:
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// [10] return
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rts
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}
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// File Data
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idx: .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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Succesful ASM optimization Pass5NextJumpElimination
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Replacing label __b1_from___b1 with __b1
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Removing instruction __b1_from___bbegin:
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Removing instruction main_from___b1:
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Removing instruction __bend_from___b1:
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Removing instruction __b1_from___b1:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction __b1:
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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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Succesful ASM optimization Pass5UnusedLabelElimination
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Adding RTS to root block
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Succesful ASM optimization Pass5AddMainRts
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Removing instruction jmp __b1
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Succesful ASM optimization Pass5NextJumpElimination
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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 byte*) SCREEN = (byte*) 1024
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(byte) idx notregister mem[1] 20.0
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(byte*) idx_p
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(const byte*) idx_p#0 idx_p = &(byte) idx
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(void()) main()
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(label) main::@1
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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 16.5
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(byte) main::i#2 reg byte x 14.666666666666666
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reg byte x [ main::i#2 main::i#1 ]
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mem[1] [ idx ]
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FINAL ASSEMBLER
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Score: 319
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// File Comments
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// Test declaring a variable as "memory", meaning it will be stored in memory and accessed through an implicit pointer (using load/store)
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// Test a pointer to a memory variable
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(__bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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.label idx_p = idx
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.label SCREEN = $400
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// @begin
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__bbegin:
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// idx
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// [0] (byte) idx ← (byte) 0 -- vbum1=vbuc1
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lda #0
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sta idx
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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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jsr main
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rts
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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::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
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ldx #0
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// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
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// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy
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// main::@1
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__b1:
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// SCREEN[i] = *idx_p
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// [6] *((const byte*) SCREEN + (byte) main::i#2) ← *((const byte*) idx_p#0) -- pbuc1_derefidx_vbuxx=_deref_pbuc2
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lda idx_p
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sta SCREEN,x
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// *idx_p +=i
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// [7] *((const byte*) idx_p#0) ← *((const byte*) idx_p#0) + (byte) main::i#2 -- _deref_pbuc1=_deref_pbuc1_plus_vbuxx
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txa
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clc
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adc idx_p
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sta idx_p
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// for( char i: 0..5 )
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// [8] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
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inx
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// [9] if((byte) main::i#1!=(byte) 6) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
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cpx #6
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bne __b1
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// main::@return
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// }
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// [10] return
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rts
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}
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// File Data
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idx: .byte 0
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