
CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@1
main: scope:[main]  from @1
  (byte) main::i#0 ← (byte/signed byte/word/signed word/dword/signed dword) 100
  (byte) main::s#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:main::@1
main::@1: scope:[main]  from main main::@4 main::@8
  (byte) main::s#6 ← phi( main/(byte) main::s#0 main::@4/(byte) main::s#1 main::@8/(byte) main::s#2 )
  (byte) main::i#2 ← phi( main/(byte) main::i#0 main::@4/(byte) main::i#4 main::@8/(byte) main::i#5 )
  (byte) main::i#1 ← -- (byte) main::i#2
  (bool~) main::$0 ← (byte) main::i#1 > (byte/signed byte/word/signed word/dword/signed dword) 0
  if((bool~) main::$0) goto main::@2
  to:main::@return
main::@2: scope:[main]  from main::@1
  (byte) main::s#5 ← phi( main::@1/(byte) main::s#6 )
  (byte) main::i#3 ← phi( main::@1/(byte) main::i#1 )
  (bool~) main::$1 ← (byte) main::i#3 > (byte/signed byte/word/signed word/dword/signed dword) 50
  if((bool~) main::$1) goto main::@4
  to:main::@8
main::@4: scope:[main]  from main::@2
  (byte) main::i#4 ← phi( main::@2/(byte) main::i#3 )
  (byte) main::s#3 ← phi( main::@2/(byte) main::s#5 )
  (byte) main::s#1 ← ++ (byte) main::s#3
  to:main::@1
main::@8: scope:[main]  from main::@2
  (byte) main::i#5 ← phi( main::@2/(byte) main::i#3 )
  (byte) main::s#4 ← phi( main::@2/(byte) main::s#5 )
  (byte) main::s#2 ← -- (byte) main::s#4
  to:main::@1
main::@return: scope:[main]  from main::@1
  return 
  to:@return
@1: scope:[]  from @begin
  call main 
  to:@2
@2: scope:[]  from @1
  to:@end
@end: scope:[]  from @2

SYMBOL TABLE SSA
(label) @1
(label) @2
(label) @begin
(label) @end
(void()) main()
(bool~) main::$0
(bool~) main::$1
(label) main::@1
(label) main::@2
(label) main::@4
(label) main::@8
(label) main::@return
(byte) main::i
(byte) main::i#0
(byte) main::i#1
(byte) main::i#2
(byte) main::i#3
(byte) main::i#4
(byte) main::i#5
(byte) main::s
(byte) main::s#0
(byte) main::s#1
(byte) main::s#2
(byte) main::s#3
(byte) main::s#4
(byte) main::s#5
(byte) main::s#6

Culled Empty Block (label) @2
Successful SSA optimization Pass2CullEmptyBlocks
Alias (byte) main::i#1 = (byte) main::i#3 (byte) main::i#4 (byte) main::i#5 
Alias (byte) main::s#3 = (byte) main::s#5 (byte) main::s#6 (byte) main::s#4 
Successful SSA optimization Pass2AliasElimination
Simple Condition (bool~) main::$0 [5] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 0) goto main::@2
Simple Condition (bool~) main::$1 [8] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 50) goto main::@4
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const byte) main::i#0 = 100
Constant (const byte) main::s#0 = 0
Successful SSA optimization Pass2ConstantIdentification
Inlining constant with var siblings (const byte) main::i#0
Inlining constant with var siblings (const byte) main::s#0
Constant inlined main::i#0 = (byte/signed byte/word/signed word/dword/signed dword) 100
Constant inlined main::s#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Successful SSA optimization Pass2ConstantInlining
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
CALL GRAPH
Calls in [] to main:2 

Created 2 initial phi equivalence classes
Coalesced [11] main::i#7 ← main::i#1
Coalesced [12] main::s#8 ← main::s#2
Coalesced (already) [14] main::i#6 ← main::i#1
Coalesced [15] main::s#7 ← main::s#1
Coalesced down to 2 phi equivalence classes
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end
Adding NOP phi() at start of main

FINAL CONTROL FLOW GRAPH
@begin: scope:[]  from
  [0] phi()
  to:@1
@1: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @1
  [3] phi()
main: scope:[main]  from @1
  [4] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@4 main::@8
  [5] (byte) main::s#3 ← phi( main/(byte/signed byte/word/signed word/dword/signed dword) 0 main::@4/(byte) main::s#1 main::@8/(byte) main::s#2 )
  [5] (byte) main::i#2 ← phi( main/(byte/signed byte/word/signed word/dword/signed dword) 100 main::@4/(byte) main::i#1 main::@8/(byte) main::i#1 )
  [6] (byte) main::i#1 ← -- (byte) main::i#2
  [7] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 0) goto main::@2
  to:main::@return
main::@return: scope:[main]  from main::@1
  [8] return 
  to:@return
main::@2: scope:[main]  from main::@1
  [9] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 50) goto main::@4
  to:main::@8
main::@8: scope:[main]  from main::@2
  [10] (byte) main::s#2 ← -- (byte) main::s#3
  to:main::@1
main::@4: scope:[main]  from main::@2
  [11] (byte) main::s#1 ← ++ (byte) main::s#3
  to:main::@1


VARIABLE REGISTER WEIGHTS
(void()) main()
(byte) main::i
(byte) main::i#1 11.0
(byte) main::i#2 33.0
(byte) main::s
(byte) main::s#1 22.0
(byte) main::s#2 22.0
(byte) main::s#3 11.0

Initial phi equivalence classes
[ main::i#2 main::i#1 ]
[ main::s#3 main::s#1 main::s#2 ]
Complete equivalence classes
[ main::i#2 main::i#1 ]
[ main::s#3 main::s#1 main::s#2 ]
Allocated zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Allocated zp ZP_BYTE:3 [ main::s#3 main::s#1 main::s#2 ]

INITIAL ASM
//SEG0 File Comments
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
  jmp b1
//SEG5 @1
b1:
//SEG6 [2] call main 
//SEG7 [4] phi from @1 to main [phi:@1->main]
main_from_b1:
  jsr main
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
  jmp bend
//SEG9 @end
bend:
//SEG10 main
main: {
    .label i = 2
    .label s = 3
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
  //SEG12 [5] phi (byte) main::s#3 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta s
  //SEG13 [5] phi (byte) main::i#2 = (byte/signed byte/word/signed word/dword/signed dword) 100 [phi:main->main::@1#1] -- vbuz1=vbuc1 
    lda #$64
    sta i
    jmp b1
  //SEG14 main::@1
  b1:
  //SEG15 [6] (byte) main::i#1 ← -- (byte) main::i#2 -- vbuz1=_dec_vbuz1 
    dec i
  //SEG16 [7] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 0) goto main::@2 -- vbuz1_gt_0_then_la1 
    lda i
    bne b2
    jmp breturn
  //SEG17 main::@return
  breturn:
  //SEG18 [8] return 
    rts
  //SEG19 main::@2
  b2:
  //SEG20 [9] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 50) goto main::@4 -- vbuz1_gt_vbuc1_then_la1 
    lda i
    cmp #$32
    beq !+
    bcs b4
  !:
    jmp b8
  //SEG21 main::@8
  b8:
  //SEG22 [10] (byte) main::s#2 ← -- (byte) main::s#3 -- vbuz1=_dec_vbuz1 
    dec s
  //SEG23 [5] phi from main::@4 main::@8 to main::@1 [phi:main::@4/main::@8->main::@1]
  b1_from_b4:
  b1_from_b8:
  //SEG24 [5] phi (byte) main::s#3 = (byte) main::s#1 [phi:main::@4/main::@8->main::@1#0] -- register_copy 
  //SEG25 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@4/main::@8->main::@1#1] -- register_copy 
    jmp b1
  //SEG26 main::@4
  b4:
  //SEG27 [11] (byte) main::s#1 ← ++ (byte) main::s#3 -- vbuz1=_inc_vbuz1 
    inc s
    jmp b1_from_b4
}

REGISTER UPLIFT POTENTIAL REGISTERS
Potential registers zp ZP_BYTE:2 [ main::i#2 main::i#1 ] : zp ZP_BYTE:2 , reg byte a , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:3 [ main::s#3 main::s#1 main::s#2 ] : zp ZP_BYTE:3 , reg byte a , reg byte x , reg byte y , 

REGISTER UPLIFT SCOPES
Uplift Scope [main] 55: zp ZP_BYTE:3 [ main::s#3 main::s#1 main::s#2 ] 44: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 
Uplift Scope [] 

Uplifting [main] best 403 combination reg byte x [ main::s#3 main::s#1 main::s#2 ] reg byte a [ main::i#2 main::i#1 ] 
Uplifting [] best 403 combination 

ASSEMBLER BEFORE OPTIMIZATION
//SEG0 File Comments
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
  jmp b1
//SEG5 @1
b1:
//SEG6 [2] call main 
//SEG7 [4] phi from @1 to main [phi:@1->main]
main_from_b1:
  jsr main
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
  jmp bend
//SEG9 @end
bend:
//SEG10 main
main: {
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
  //SEG12 [5] phi (byte) main::s#3 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1 
    ldx #0
  //SEG13 [5] phi (byte) main::i#2 = (byte/signed byte/word/signed word/dword/signed dword) 100 [phi:main->main::@1#1] -- vbuaa=vbuc1 
    lda #$64
    jmp b1
  //SEG14 main::@1
  b1:
  //SEG15 [6] (byte) main::i#1 ← -- (byte) main::i#2 -- vbuaa=_dec_vbuaa 
    sec
    sbc #1
  //SEG16 [7] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 0) goto main::@2 -- vbuaa_gt_0_then_la1 
    cmp #0
    bne b2
    jmp breturn
  //SEG17 main::@return
  breturn:
  //SEG18 [8] return 
    rts
  //SEG19 main::@2
  b2:
  //SEG20 [9] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 50) goto main::@4 -- vbuaa_gt_vbuc1_then_la1 
    cmp #$32
    beq !+
    bcs b4
  !:
    jmp b8
  //SEG21 main::@8
  b8:
  //SEG22 [10] (byte) main::s#2 ← -- (byte) main::s#3 -- vbuxx=_dec_vbuxx 
    dex
  //SEG23 [5] phi from main::@4 main::@8 to main::@1 [phi:main::@4/main::@8->main::@1]
  b1_from_b4:
  b1_from_b8:
  //SEG24 [5] phi (byte) main::s#3 = (byte) main::s#1 [phi:main::@4/main::@8->main::@1#0] -- register_copy 
  //SEG25 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@4/main::@8->main::@1#1] -- register_copy 
    jmp b1
  //SEG26 main::@4
  b4:
  //SEG27 [11] (byte) main::s#1 ← ++ (byte) main::s#3 -- vbuxx=_inc_vbuxx 
    inx
    jmp b1_from_b4
}

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp breturn
Removing instruction jmp b8
Succesful ASM optimization Pass5NextJumpElimination
Replacing label b1_from_b4 with b1_from_b8
Removing instruction b1_from_bbegin:
Removing instruction b1:
Removing instruction main_from_b1:
Removing instruction bend_from_b1:
Removing instruction b1_from_b4:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction b1_from_main:
Removing instruction breturn:
Removing instruction b8:
Succesful ASM optimization Pass5UnusedLabelElimination
Updating BasicUpstart to call main directly
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
Skipping double jump to b1 in jmp b1_from_b8
Succesful ASM optimization Pass5DoubleJumpElimination
Relabelling long label b1_from_b8 to b3
Succesful ASM optimization Pass5RelabelLongLabels
Removing instruction bbegin:
Removing instruction b3:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@4
(label) main::@8
(label) main::@return
(byte) main::i
(byte) main::i#1 reg byte a 11.0
(byte) main::i#2 reg byte a 33.0
(byte) main::s
(byte) main::s#1 reg byte x 22.0
(byte) main::s#2 reg byte x 22.0
(byte) main::s#3 reg byte x 11.0

reg byte a [ main::i#2 main::i#1 ]
reg byte x [ main::s#3 main::s#1 main::s#2 ]


FINAL ASSEMBLER
Score: 301

//SEG0 File Comments
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
//SEG2 Global Constants & labels
//SEG3 @begin
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
//SEG5 @1
//SEG6 [2] call main 
//SEG7 [4] phi from @1 to main [phi:@1->main]
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
//SEG9 @end
//SEG10 main
main: {
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  //SEG12 [5] phi (byte) main::s#3 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1 
    ldx #0
  //SEG13 [5] phi (byte) main::i#2 = (byte/signed byte/word/signed word/dword/signed dword) 100 [phi:main->main::@1#1] -- vbuaa=vbuc1 
    lda #$64
  //SEG14 main::@1
  b1:
  //SEG15 [6] (byte) main::i#1 ← -- (byte) main::i#2 -- vbuaa=_dec_vbuaa 
    sec
    sbc #1
  //SEG16 [7] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 0) goto main::@2 -- vbuaa_gt_0_then_la1 
    cmp #0
    bne b2
  //SEG17 main::@return
  //SEG18 [8] return 
    rts
  //SEG19 main::@2
  b2:
  //SEG20 [9] if((byte) main::i#1>(byte/signed byte/word/signed word/dword/signed dword) 50) goto main::@4 -- vbuaa_gt_vbuc1_then_la1 
    cmp #$32
    beq !+
    bcs b4
  !:
  //SEG21 main::@8
  //SEG22 [10] (byte) main::s#2 ← -- (byte) main::s#3 -- vbuxx=_dec_vbuxx 
    dex
  //SEG23 [5] phi from main::@4 main::@8 to main::@1 [phi:main::@4/main::@8->main::@1]
  //SEG24 [5] phi (byte) main::s#3 = (byte) main::s#1 [phi:main::@4/main::@8->main::@1#0] -- register_copy 
  //SEG25 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@4/main::@8->main::@1#1] -- register_copy 
    jmp b1
  //SEG26 main::@4
  b4:
  //SEG27 [11] (byte) main::s#1 ← ++ (byte) main::s#3 -- vbuxx=_inc_vbuxx 
    inx
    jmp b1
}

