
CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@1
main: scope:[main]  from @1
  (byte[1024]) main::SCREEN#0 ← ((byte*)) (word/signed word/dword/signed dword) 1024
  (byte) main::i#0 ← (byte/signed byte/word/signed word/dword/signed dword) 2
  to:main::@1
main::@1: scope:[main]  from main main::@2
  (byte) main::i#2 ← phi( main/(byte) main::i#0 main::@2/(byte) main::i#1 )
  (bool~) main::$0 ← (byte) main::i#2 < (byte/signed byte/word/signed word/dword/signed dword) 10
  if((bool~) main::$0) goto main::@2
  to:main::@return
main::@2: scope:[main]  from main::@1
  (byte) main::i#3 ← phi( main::@1/(byte) main::i#2 )
  (byte) main::b#0 ← *((byte[1024]) main::SCREEN#0 + (byte) main::i#3)
  (byte) main::i#1 ← ++ (byte) main::i#3
  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
(label) main::@1
(label) main::@2
(label) main::@return
(byte[1024]) main::SCREEN
(byte[1024]) main::SCREEN#0
(byte) main::b
(byte) main::b#0
(byte) main::i
(byte) main::i#0
(byte) main::i#1
(byte) main::i#2
(byte) main::i#3

Culled Empty Block (label) @2
Successful SSA optimization Pass2CullEmptyBlocks
Alias (byte) main::i#2 = (byte) main::i#3 
Successful SSA optimization Pass2AliasElimination
Simple Condition (bool~) main::$0 [4] if((byte) main::i#2<(byte/signed byte/word/signed word/dword/signed dword) 10) goto main::@2
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const byte[1024]) main::SCREEN#0 = ((byte*))1024
Constant (const byte) main::i#0 = 2
Successful SSA optimization Pass2ConstantIdentification
Inlining constant with var siblings (const byte) main::i#0
Constant inlined main::i#0 = (byte/signed byte/word/signed word/dword/signed dword) 2
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 1 initial phi equivalence classes
Coalesced [10] main::i#4 ← main::i#1
Coalesced down to 1 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::@2
  [5] (byte) main::i#2 ← phi( main/(byte/signed byte/word/signed word/dword/signed dword) 2 main::@2/(byte) main::i#1 )
  [6] if((byte) main::i#2<(byte/signed byte/word/signed word/dword/signed dword) 10) goto main::@2
  to:main::@return
main::@return: scope:[main]  from main::@1
  [7] return 
  to:@return
main::@2: scope:[main]  from main::@1
  [8] (byte) main::b#0 ← *((const byte[1024]) main::SCREEN#0 + (byte) main::i#2)
  [9] (byte) main::i#1 ← ++ (byte) main::i#2
  to:main::@1


VARIABLE REGISTER WEIGHTS
(void()) main()
(byte[1024]) main::SCREEN
(byte) main::b
(byte) main::b#0 110.0
(byte) main::i
(byte) main::i#1 22.0
(byte) main::i#2 14.666666666666666

Initial phi equivalence classes
[ main::i#2 main::i#1 ]
Added variable main::b#0 to zero page equivalence class [ main::b#0 ]
Complete equivalence classes
[ main::i#2 main::i#1 ]
[ main::b#0 ]
Allocated zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Allocated zp ZP_BYTE:3 [ main::b#0 ]

INITIAL ASM
//SEG0 File Comments
// Test all types of pointers
//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: {
    // A constant pointer
    .label SCREEN = $400
    .label b = 3
    .label i = 2
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
  //SEG12 [5] phi (byte) main::i#2 = (byte/signed byte/word/signed word/dword/signed dword) 2 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #2
    sta i
    jmp b1
  //SEG13 main::@1
  b1:
  //SEG14 [6] if((byte) main::i#2<(byte/signed byte/word/signed word/dword/signed dword) 10) goto main::@2 -- vbuz1_lt_vbuc1_then_la1 
    lda i
    cmp #$a
    bcc b2
    jmp breturn
  //SEG15 main::@return
  breturn:
  //SEG16 [7] return 
    rts
  //SEG17 main::@2
  b2:
  //SEG18 [8] (byte) main::b#0 ← *((const byte[1024]) main::SCREEN#0 + (byte) main::i#2) -- vbuz1=pbuc1_derefidx_vbuz2 
    ldy i
    lda SCREEN,y
    sta b
  //SEG19 [9] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1 
    inc i
  //SEG20 [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
  b1_from_b2:
  //SEG21 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#0] -- register_copy 
    jmp b1
}

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::b#0 ] : zp ZP_BYTE:3 , reg byte a , reg byte x , reg byte y , 

REGISTER UPLIFT SCOPES
Uplift Scope [main] 110: zp ZP_BYTE:3 [ main::b#0 ] 36.67: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 
Uplift Scope [] 

Uplifting [main] best 238 combination reg byte a [ main::b#0 ] reg byte x [ main::i#2 main::i#1 ] 
Uplifting [] best 238 combination 

ASSEMBLER BEFORE OPTIMIZATION
//SEG0 File Comments
// Test all types of pointers
//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: {
    // A constant pointer
    .label SCREEN = $400
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
  //SEG12 [5] phi (byte) main::i#2 = (byte/signed byte/word/signed word/dword/signed dword) 2 [phi:main->main::@1#0] -- vbuxx=vbuc1 
    ldx #2
    jmp b1
  //SEG13 main::@1
  b1:
  //SEG14 [6] if((byte) main::i#2<(byte/signed byte/word/signed word/dword/signed dword) 10) goto main::@2 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$a
    bcc b2
    jmp breturn
  //SEG15 main::@return
  breturn:
  //SEG16 [7] return 
    rts
  //SEG17 main::@2
  b2:
  //SEG18 [8] (byte) main::b#0 ← *((const byte[1024]) main::SCREEN#0 + (byte) main::i#2) -- vbuaa=pbuc1_derefidx_vbuxx 
    lda SCREEN,x
  //SEG19 [9] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx 
    inx
  //SEG20 [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
  b1_from_b2:
  //SEG21 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#0] -- register_copy 
    jmp b1
}

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction b1_from_bbegin:
Removing instruction b1:
Removing instruction main_from_b1:
Removing instruction bend_from_b1:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction b1_from_main:
Removing instruction breturn:
Removing instruction b1_from_b2:
Succesful ASM optimization Pass5UnusedLabelElimination
Updating BasicUpstart to call main directly
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
Removing instruction bbegin:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@return
(byte[1024]) main::SCREEN
(const byte[1024]) main::SCREEN#0 SCREEN = ((byte*))(word/signed word/dword/signed dword) 1024
(byte) main::b
(byte) main::b#0 reg byte a 110.0
(byte) main::i
(byte) main::i#1 reg byte x 22.0
(byte) main::i#2 reg byte x 14.666666666666666

reg byte x [ main::i#2 main::i#1 ]
reg byte a [ main::b#0 ]


FINAL ASSEMBLER
Score: 166

//SEG0 File Comments
// Test all types of pointers
//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: {
    // A constant pointer
    .label SCREEN = $400
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  //SEG12 [5] phi (byte) main::i#2 = (byte/signed byte/word/signed word/dword/signed dword) 2 [phi:main->main::@1#0] -- vbuxx=vbuc1 
    ldx #2
  //SEG13 main::@1
  b1:
  //SEG14 [6] if((byte) main::i#2<(byte/signed byte/word/signed word/dword/signed dword) 10) goto main::@2 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$a
    bcc b2
  //SEG15 main::@return
  //SEG16 [7] return 
    rts
  //SEG17 main::@2
  b2:
  //SEG18 [8] (byte) main::b#0 ← *((const byte[1024]) main::SCREEN#0 + (byte) main::i#2) -- vbuaa=pbuc1_derefidx_vbuxx 
    lda SCREEN,x
  //SEG19 [9] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx 
    inx
  //SEG20 [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
  //SEG21 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#0] -- register_copy 
    jmp b1
}

