Culled Empty Block (label) main::@2
Culled Empty Block (label) main::@4
Culled Empty Block (label) @1
Culled Empty Block (label) line::@2
Culled Empty Block (label) line::@4
Culled Empty Block (label) line::@8
Culled Empty Block (label) line::@7
Culled Empty Block (label) line::@9
Culled Empty Block (label) line::@10
Culled Empty Block (label) @2

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@3

(void()) main()
main: scope:[main]  from @3
  (byte) main::i#0 ← (byte) 0
  to:main::@1
main::@1: scope:[main]  from main main::@1
  (byte) main::i#2 ← phi( main/(byte) main::i#0 main::@1/(byte) main::i#1 )
  *((const byte*) plots + (byte) main::i#2) ← (byte) main::i#2
  *((const byte*) SCREEN + (byte) main::i#2) ← (number) 0
  (byte) main::i#1 ← (byte) main::i#2 + rangenext(0,$27)
  (bool~) main::$0 ← (byte) main::i#1 != rangelast(0,$27)
  if((bool~) main::$0) goto main::@1
  to:main::@3
main::@3: scope:[main]  from main::@1 main::@5
  (byte) line::x0#0 ← (number) 0
  (byte) line::x1#0 ← (number) $a
  call line 
  to:main::@5
main::@5: scope:[main]  from main::@3
  if(true) goto main::@3
  to:main::@return
main::@return: scope:[main]  from main::@5
  return 
  to:@return

(void()) line((byte) line::x0 , (byte) line::x1)
line: scope:[line]  from main::@3
  (byte) line::x1#1 ← phi( main::@3/(byte) line::x1#0 )
  (byte) line::x0#1 ← phi( main::@3/(byte) line::x0#0 )
  (bool~) line::$0 ← (byte) line::x0#1 < (byte) line::x1#1
  if((bool~) line::$0) goto line::@1
  to:line::@3
line::@1: scope:[line]  from line
  (byte) line::x1#3 ← phi( line/(byte) line::x1#1 )
  (byte) line::x0#2 ← phi( line/(byte) line::x0#1 )
  (byte) line::x#0 ← (byte) line::x0#2
  to:line::@5
line::@3: scope:[line]  from line
  (byte) line::x0#3 ← phi( line/(byte) line::x0#1 )
  (byte) plot::x#0 ← (byte) line::x0#3
  call plot 
  to:line::@11
line::@11: scope:[line]  from line::@3
  to:line::@return
line::@5: scope:[line]  from line::@1 line::@12
  (byte) line::x1#2 ← phi( line::@1/(byte) line::x1#3 line::@12/(byte) line::x1#4 )
  (byte) line::x#2 ← phi( line::@1/(byte) line::x#0 line::@12/(byte) line::x#1 )
  (bool~) line::$2 ← (byte) line::x#2 <= (byte) line::x1#2
  if((bool~) line::$2) goto line::@6
  to:line::@return
line::@6: scope:[line]  from line::@5
  (byte) line::x1#5 ← phi( line::@5/(byte) line::x1#2 )
  (byte) line::x#3 ← phi( line::@5/(byte) line::x#2 )
  (byte) plot::x#1 ← (byte) line::x#3
  call plot 
  to:line::@12
line::@12: scope:[line]  from line::@6
  (byte) line::x1#4 ← phi( line::@6/(byte) line::x1#5 )
  (byte) line::x#4 ← phi( line::@6/(byte) line::x#3 )
  (byte) line::x#1 ← ++ (byte) line::x#4
  to:line::@5
line::@return: scope:[line]  from line::@11 line::@5
  return 
  to:@return

(void()) plot((byte) plot::x)
plot: scope:[plot]  from line::@3 line::@6
  (byte) plot::x#2 ← phi( line::@3/(byte) plot::x#0 line::@6/(byte) plot::x#1 )
  (byte) plot::idx#0 ← *((const byte*) plots + (byte) plot::x#2)
  (number~) plot::$0 ← *((const byte*) SCREEN + (byte) plot::idx#0) + (number) 1
  *((const byte*) SCREEN + (byte) plot::idx#0) ← (number~) plot::$0
  to:plot::@return
plot::@return: scope:[plot]  from plot
  return 
  to:@return
@3: scope:[]  from @begin
  call main 
  to:@4
@4: scope:[]  from @3
  to:@end
@end: scope:[]  from @4

SYMBOL TABLE SSA
(label) @3
(label) @4
(label) @begin
(label) @end
(const byte*) SCREEN = (byte*)(number) $400
(void()) line((byte) line::x0 , (byte) line::x1)
(bool~) line::$0
(bool~) line::$2
(label) line::@1
(label) line::@11
(label) line::@12
(label) line::@3
(label) line::@5
(label) line::@6
(label) line::@return
(byte) line::x
(byte) line::x#0
(byte) line::x#1
(byte) line::x#2
(byte) line::x#3
(byte) line::x#4
(byte) line::x0
(byte) line::x0#0
(byte) line::x0#1
(byte) line::x0#2
(byte) line::x0#3
(byte) line::x1
(byte) line::x1#0
(byte) line::x1#1
(byte) line::x1#2
(byte) line::x1#3
(byte) line::x1#4
(byte) line::x1#5
(void()) main()
(bool~) main::$0
(label) main::@1
(label) main::@3
(label) main::@5
(label) main::@return
(byte) main::i
(byte) main::i#0
(byte) main::i#1
(byte) main::i#2
(void()) plot((byte) plot::x)
(number~) plot::$0
(label) plot::@return
(byte) plot::idx
(byte) plot::idx#0
(byte) plot::x
(byte) plot::x#0
(byte) plot::x#1
(byte) plot::x#2
(const byte*) plots = (byte*)(number) $1000

Adding number conversion cast (unumber) 0 in *((const byte*) SCREEN + (byte) main::i#2) ← (number) 0
Adding number conversion cast (unumber) 0 in (byte) line::x0#0 ← (number) 0
Adding number conversion cast (unumber) $a in (byte) line::x1#0 ← (number) $a
Adding number conversion cast (unumber) 1 in (number~) plot::$0 ← *((const byte*) SCREEN + (byte) plot::idx#0) + (number) 1
Adding number conversion cast (unumber) plot::$0 in (number~) plot::$0 ← *((const byte*) SCREEN + (byte) plot::idx#0) + (unumber)(number) 1
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast *((const byte*) SCREEN + (byte) main::i#2) ← (unumber)(number) 0
Inlining cast (byte) line::x0#0 ← (unumber)(number) 0
Inlining cast (byte) line::x1#0 ← (unumber)(number) $a
Successful SSA optimization Pass2InlineCast
Simplifying constant pointer cast (byte*) 4096
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast 0
Simplifying constant integer cast 0
Simplifying constant integer cast $a
Simplifying constant integer cast 1
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) $a
Finalized unsigned number type (byte) 1
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to byte in (unumber~) plot::$0 ← *((const byte*) SCREEN + (byte) plot::idx#0) + (byte) 1
Alias (byte) line::x0#1 = (byte) line::x0#2 (byte) line::x#0 (byte) line::x0#3 
Alias (byte) line::x1#1 = (byte) line::x1#3 
Alias (byte) line::x#2 = (byte) line::x#3 (byte) line::x#4 
Alias (byte) line::x1#2 = (byte) line::x1#5 (byte) line::x1#4 
Successful SSA optimization Pass2AliasElimination
Identical Phi Values (byte) line::x0#1 (byte) line::x0#0
Identical Phi Values (byte) line::x1#1 (byte) line::x1#0
Identical Phi Values (byte) line::x1#2 (byte) line::x1#1
Successful SSA optimization Pass2IdenticalPhiElimination
Simple Condition (bool~) main::$0 [6] if((byte) main::i#1!=rangelast(0,$27)) goto main::@1
Simple Condition (bool~) line::$0 [14] if((byte) line::x0#0<(byte) line::x1#0) goto line::@1
Simple Condition (bool~) line::$2 [22] if((byte) line::x#2<=(byte) line::x1#0) goto line::@6
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const byte) main::i#0 = 0
Constant (const byte) line::x0#0 = 0
Constant (const byte) line::x1#0 = $a
Successful SSA optimization Pass2ConstantIdentification
Constant (const byte) plot::x#0 = line::x0#0
Successful SSA optimization Pass2ConstantIdentification
if() condition always true - replacing block destination [10] if(true) goto main::@3
if() condition always true - replacing block destination [14] if((const byte) line::x0#0<(const byte) line::x1#0) goto line::@1
Successful SSA optimization Pass2ConstantIfs
Resolved ranged next value [4] main::i#1 ← ++ main::i#2 to ++
Resolved ranged comparison value [6] if(main::i#1!=rangelast(0,$27)) goto main::@1 to (number) $28
Rewriting conditional comparison [22] if((byte) line::x#2<=(const byte) line::x1#0) goto line::@6
Removing unused block main::@return
Removing PHI-reference to removed block (line::@3) in block plot
Removing unused block line::@3
Removing unused block line::@11
Successful SSA optimization Pass2EliminateUnusedBlocks
Adding number conversion cast (unumber) $28 in if((byte) main::i#1!=(number) $28) goto main::@1
Adding number conversion cast (unumber) line::x1#0+1 in if((byte) line::x#2<(const byte) line::x1#0+(number) 1) goto line::@6
Adding number conversion cast (unumber) 1 in if((byte) line::x#2<(unumber)(const byte) line::x1#0+(number) 1) goto line::@6
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant integer cast $28
Simplifying constant integer cast (const byte) line::x1#0+(unumber)(number) 1
Simplifying constant integer cast 1
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) $28
Finalized unsigned number type (byte) 1
Successful SSA optimization PassNFinalizeNumberTypeConversions
Identical Phi Values (byte) plot::x#2 (byte) plot::x#1
Successful SSA optimization Pass2IdenticalPhiElimination
Eliminating unused constant (const byte) plot::x#0
Successful SSA optimization PassNEliminateUnusedVars
Inlining constant with var siblings (const byte) main::i#0
Constant inlined main::i#0 = (byte) 0
Successful SSA optimization Pass2ConstantInlining
Added new block during phi lifting main::@6(between main::@1 and main::@1)
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @3
Adding NOP phi() at start of @4
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
Adding NOP phi() at start of main::@3
Adding NOP phi() at start of main::@5
Adding NOP phi() at start of line
Adding NOP phi() at start of line::@1
CALL GRAPH
Calls in [] to main:2 
Calls in [main] to line:12 
Calls in [line] to plot:21 

Created 2 initial phi equivalence classes
Coalesced [14] main::i#3 ← main::i#1
Coalesced [23] line::x#5 ← line::x#1
Coalesced down to 2 phi equivalence classes
Culled Empty Block (label) @4
Culled Empty Block (label) main::@5
Culled Empty Block (label) main::@6
Culled Empty Block (label) line::@1
Renumbering block @3 to @1
Renumbering block main::@3 to main::@2
Renumbering block line::@5 to line::@1
Renumbering block line::@6 to line::@2
Renumbering block line::@12 to line::@3
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
Adding NOP phi() at start of main::@2
Adding NOP phi() at start of line

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()

(void()) main()
main: scope:[main]  from @1
  [4] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@1
  [5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
  [6] *((const byte*) plots + (byte) main::i#2) ← (byte) main::i#2
  [7] *((const byte*) SCREEN + (byte) main::i#2) ← (byte) 0
  [8] (byte) main::i#1 ← ++ (byte) main::i#2
  [9] if((byte) main::i#1!=(byte) $28) goto main::@1
  to:main::@2
main::@2: scope:[main]  from main::@1 main::@2
  [10] phi()
  [11] call line 
  to:main::@2

(void()) line((byte) line::x0 , (byte) line::x1)
line: scope:[line]  from main::@2
  [12] phi()
  to:line::@1
line::@1: scope:[line]  from line line::@3
  [13] (byte) line::x#2 ← phi( line/(const byte) line::x0#0 line::@3/(byte) line::x#1 )
  [14] if((byte) line::x#2<(const byte) line::x1#0+(byte) 1) goto line::@2
  to:line::@return
line::@return: scope:[line]  from line::@1
  [15] return 
  to:@return
line::@2: scope:[line]  from line::@1
  [16] (byte) plot::x#1 ← (byte) line::x#2
  [17] call plot 
  to:line::@3
line::@3: scope:[line]  from line::@2
  [18] (byte) line::x#1 ← ++ (byte) line::x#2
  to:line::@1

(void()) plot((byte) plot::x)
plot: scope:[plot]  from line::@2
  [19] (byte) plot::idx#0 ← *((const byte*) plots + (byte) plot::x#1)
  [20] (byte~) plot::$0 ← *((const byte*) SCREEN + (byte) plot::idx#0) + (byte) 1
  [21] *((const byte*) SCREEN + (byte) plot::idx#0) ← (byte~) plot::$0
  to:plot::@return
plot::@return: scope:[plot]  from plot
  [22] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(void()) line((byte) line::x0 , (byte) line::x1)
(byte) line::x
(byte) line::x#1 202.0
(byte) line::x#2 101.0
(byte) line::x0
(byte) line::x1
(void()) main()
(byte) main::i
(byte) main::i#1 16.5
(byte) main::i#2 18.333333333333332
(void()) plot((byte) plot::x)
(byte~) plot::$0 4.0
(byte) plot::idx
(byte) plot::idx#0 3.0
(byte) plot::x
(byte) plot::x#1 103.0

Initial phi equivalence classes
[ main::i#2 main::i#1 ]
[ line::x#2 line::x#1 ]
Added variable plot::x#1 to live range equivalence class [ plot::x#1 ]
Added variable plot::idx#0 to live range equivalence class [ plot::idx#0 ]
Added variable plot::$0 to live range equivalence class [ plot::$0 ]
Complete equivalence classes
[ main::i#2 main::i#1 ]
[ line::x#2 line::x#1 ]
[ plot::x#1 ]
[ plot::idx#0 ]
[ plot::$0 ]
Allocated zp[1]:2 [ main::i#2 main::i#1 ]
Allocated zp[1]:3 [ line::x#2 line::x#1 ]
Allocated zp[1]:4 [ plot::x#1 ]
Allocated zp[1]:5 [ plot::idx#0 ]
Allocated zp[1]:6 [ plot::$0 ]

INITIAL ASM
Target platform is c64basic / MOS6502X
  // File Comments
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(__bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .label plots = $1000
  .label SCREEN = $400
  // @begin
__bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
__b1_from___bbegin:
  jmp __b1
  // @1
__b1:
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
main_from___b1:
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
__bend_from___b1:
  jmp __bend
  // @end
__bend:
  // main
main: {
    .label i = 2
    // [5] phi from main to main::@1 [phi:main->main::@1]
  __b1_from_main:
    // [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta.z i
    jmp __b1
    // [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
  __b1_from___b1:
    // [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy 
    jmp __b1
    // main::@1
  __b1:
    // [6] *((const byte*) plots + (byte) main::i#2) ← (byte) main::i#2 -- pbuc1_derefidx_vbuz1=vbuz1 
    ldy.z i
    tya
    sta plots,y
    // [7] *((const byte*) SCREEN + (byte) main::i#2) ← (byte) 0 -- pbuc1_derefidx_vbuz1=vbuc2 
    lda #0
    ldy.z i
    sta SCREEN,y
    // [8] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1 
    inc.z i
    // [9] if((byte) main::i#1!=(byte) $28) goto main::@1 -- vbuz1_neq_vbuc1_then_la1 
    lda #$28
    cmp.z i
    bne __b1_from___b1
    // [10] phi from main::@1 main::@2 to main::@2 [phi:main::@1/main::@2->main::@2]
  __b2_from___b1:
  __b2_from___b2:
    jmp __b2
    // main::@2
  __b2:
    // [11] call line 
    // [12] phi from main::@2 to line [phi:main::@2->line]
  line_from___b2:
    jsr line
    jmp __b2_from___b2
}
  // line
line: {
    .const x0 = 0
    .const x1 = $a
    .label x = 3
    // [13] phi from line to line::@1 [phi:line->line::@1]
  __b1_from_line:
    // [13] phi (byte) line::x#2 = (const byte) line::x0#0 [phi:line->line::@1#0] -- vbuz1=vbuc1 
    lda #x0
    sta.z x
    jmp __b1
    // line::@1
  __b1:
    // [14] if((byte) line::x#2<(const byte) line::x1#0+(byte) 1) goto line::@2 -- vbuz1_lt_vbuc1_then_la1 
    lda.z x
    cmp #x1+1
    bcc __b2
    jmp __breturn
    // line::@return
  __breturn:
    // [15] return 
    rts
    // line::@2
  __b2:
    // [16] (byte) plot::x#1 ← (byte) line::x#2 -- vbuz1=vbuz2 
    lda.z x
    sta.z plot.x
    // [17] call plot 
    jsr plot
    jmp __b3
    // line::@3
  __b3:
    // [18] (byte) line::x#1 ← ++ (byte) line::x#2 -- vbuz1=_inc_vbuz1 
    inc.z x
    // [13] phi from line::@3 to line::@1 [phi:line::@3->line::@1]
  __b1_from___b3:
    // [13] phi (byte) line::x#2 = (byte) line::x#1 [phi:line::@3->line::@1#0] -- register_copy 
    jmp __b1
}
  // plot
// plot(byte zp(4) x)
plot: {
    .label __0 = 6
    .label x = 4
    .label idx = 5
    // [19] (byte) plot::idx#0 ← *((const byte*) plots + (byte) plot::x#1) -- vbuz1=pbuc1_derefidx_vbuz2 
    ldy.z x
    lda plots,y
    sta.z idx
    // [20] (byte~) plot::$0 ← *((const byte*) SCREEN + (byte) plot::idx#0) + (byte) 1 -- vbuz1=pbuc1_derefidx_vbuz2_plus_1 
    ldx.z idx
    ldy SCREEN,x
    iny
    sty.z __0
    // [21] *((const byte*) SCREEN + (byte) plot::idx#0) ← (byte~) plot::$0 -- pbuc1_derefidx_vbuz1=vbuz2 
    lda.z __0
    ldy.z idx
    sta SCREEN,y
    jmp __breturn
    // plot::@return
  __breturn:
    // [22] return 
    rts
}
  // File Data

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [7] *((const byte*) SCREEN + (byte) main::i#2) ← (byte) 0 [ main::i#2 ] ( main:2 [ main::i#2 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp[1]:2 [ main::i#2 main::i#1 ]
Statement [6] *((const byte*) plots + (byte) main::i#2) ← (byte) main::i#2 [ main::i#2 ] ( main:2 [ main::i#2 ] ) always clobbers reg byte a 
Statement [7] *((const byte*) SCREEN + (byte) main::i#2) ← (byte) 0 [ main::i#2 ] ( main:2 [ main::i#2 ] ) always clobbers reg byte a 
Potential registers zp[1]:2 [ main::i#2 main::i#1 ] : zp[1]:2 , reg byte x , reg byte y , 
Potential registers zp[1]:3 [ line::x#2 line::x#1 ] : zp[1]:3 , reg byte a , reg byte x , reg byte y , 
Potential registers zp[1]:4 [ plot::x#1 ] : zp[1]:4 , reg byte a , reg byte x , reg byte y , 
Potential registers zp[1]:5 [ plot::idx#0 ] : zp[1]:5 , reg byte a , reg byte x , reg byte y , 
Potential registers zp[1]:6 [ plot::$0 ] : zp[1]:6 , reg byte a , reg byte x , reg byte y , 

REGISTER UPLIFT SCOPES
Uplift Scope [line] 303: zp[1]:3 [ line::x#2 line::x#1 ] 
Uplift Scope [plot] 103: zp[1]:4 [ plot::x#1 ] 4: zp[1]:6 [ plot::$0 ] 3: zp[1]:5 [ plot::idx#0 ] 
Uplift Scope [main] 34.83: zp[1]:2 [ main::i#2 main::i#1 ] 
Uplift Scope [] 

Uplifting [line] best 4684 combination zp[1]:3 [ line::x#2 line::x#1 ] 
Uplifting [plot] best 4368 combination reg byte y [ plot::x#1 ] reg byte a [ plot::$0 ] reg byte x [ plot::idx#0 ] 
Uplifting [main] best 4218 combination reg byte x [ main::i#2 main::i#1 ] 
Uplifting [] best 4218 combination 
Attempting to uplift remaining variables inzp[1]:3 [ line::x#2 line::x#1 ]
Uplifting [line] best 3018 combination reg byte y [ line::x#2 line::x#1 ] 

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(__bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .label plots = $1000
  .label SCREEN = $400
  // @begin
__bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
__b1_from___bbegin:
  jmp __b1
  // @1
__b1:
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
main_from___b1:
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
__bend_from___b1:
  jmp __bend
  // @end
__bend:
  // main
main: {
    // [5] phi from main to main::@1 [phi:main->main::@1]
  __b1_from_main:
    // [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1 
    ldx #0
    jmp __b1
    // [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
  __b1_from___b1:
    // [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy 
    jmp __b1
    // main::@1
  __b1:
    // [6] *((const byte*) plots + (byte) main::i#2) ← (byte) main::i#2 -- pbuc1_derefidx_vbuxx=vbuxx 
    txa
    sta plots,x
    // [7] *((const byte*) SCREEN + (byte) main::i#2) ← (byte) 0 -- pbuc1_derefidx_vbuxx=vbuc2 
    lda #0
    sta SCREEN,x
    // [8] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx 
    inx
    // [9] if((byte) main::i#1!=(byte) $28) goto main::@1 -- vbuxx_neq_vbuc1_then_la1 
    cpx #$28
    bne __b1_from___b1
    // [10] phi from main::@1 main::@2 to main::@2 [phi:main::@1/main::@2->main::@2]
  __b2_from___b1:
  __b2_from___b2:
    jmp __b2
    // main::@2
  __b2:
    // [11] call line 
    // [12] phi from main::@2 to line [phi:main::@2->line]
  line_from___b2:
    jsr line
    jmp __b2_from___b2
}
  // line
line: {
    .const x0 = 0
    .const x1 = $a
    // [13] phi from line to line::@1 [phi:line->line::@1]
  __b1_from_line:
    // [13] phi (byte) line::x#2 = (const byte) line::x0#0 [phi:line->line::@1#0] -- vbuyy=vbuc1 
    ldy #x0
    jmp __b1
    // line::@1
  __b1:
    // [14] if((byte) line::x#2<(const byte) line::x1#0+(byte) 1) goto line::@2 -- vbuyy_lt_vbuc1_then_la1 
    cpy #x1+1
    bcc __b2
    jmp __breturn
    // line::@return
  __breturn:
    // [15] return 
    rts
    // line::@2
  __b2:
    // [16] (byte) plot::x#1 ← (byte) line::x#2
    // [17] call plot 
    jsr plot
    jmp __b3
    // line::@3
  __b3:
    // [18] (byte) line::x#1 ← ++ (byte) line::x#2 -- vbuyy=_inc_vbuyy 
    iny
    // [13] phi from line::@3 to line::@1 [phi:line::@3->line::@1]
  __b1_from___b3:
    // [13] phi (byte) line::x#2 = (byte) line::x#1 [phi:line::@3->line::@1#0] -- register_copy 
    jmp __b1
}
  // plot
// plot(byte register(Y) x)
plot: {
    // [19] (byte) plot::idx#0 ← *((const byte*) plots + (byte) plot::x#1) -- vbuxx=pbuc1_derefidx_vbuyy 
    ldx plots,y
    // [20] (byte~) plot::$0 ← *((const byte*) SCREEN + (byte) plot::idx#0) + (byte) 1 -- vbuaa=pbuc1_derefidx_vbuxx_plus_1 
    lda SCREEN,x
    clc
    adc #1
    // [21] *((const byte*) SCREEN + (byte) plot::idx#0) ← (byte~) plot::$0 -- pbuc1_derefidx_vbuxx=vbuaa 
    sta SCREEN,x
    jmp __breturn
    // plot::@return
  __breturn:
    // [22] return 
    rts
}
  // File Data

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp __b1
Removing instruction jmp __bend
Removing instruction jmp __b1
Removing instruction jmp __b2
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __b3
Removing instruction jmp __breturn
Succesful ASM optimization Pass5NextJumpElimination
Replacing label __bbegin with __b1
Replacing label __b1_from___b1 with __b1
Replacing label __b2_from___b2 with __b2
Removing instruction __bbegin:
Removing instruction __b1_from___bbegin:
Removing instruction main_from___b1:
Removing instruction __bend_from___b1:
Removing instruction __b1_from___b1:
Removing instruction __b2_from___b1:
Removing instruction __b2_from___b2:
Removing instruction line_from___b2:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction __bend:
Removing instruction __b1_from_main:
Removing instruction __b1_from_line:
Removing instruction __breturn:
Removing instruction __b3:
Removing instruction __b1_from___b3:
Removing instruction __breturn:
Succesful ASM optimization Pass5UnusedLabelElimination
Updating BasicUpstart to call main directly
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
Removing instruction jmp __b1
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction __b1:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(const byte*) SCREEN = (byte*) 1024
(void()) line((byte) line::x0 , (byte) line::x1)
(label) line::@1
(label) line::@2
(label) line::@3
(label) line::@return
(byte) line::x
(byte) line::x#1 reg byte y 202.0
(byte) line::x#2 reg byte y 101.0
(byte) line::x0
(const byte) line::x0#0 x0 = (byte) 0
(byte) line::x1
(const byte) line::x1#0 x1 = (byte) $a
(void()) main()
(label) main::@1
(label) main::@2
(byte) main::i
(byte) main::i#1 reg byte x 16.5
(byte) main::i#2 reg byte x 18.333333333333332
(void()) plot((byte) plot::x)
(byte~) plot::$0 reg byte a 4.0
(label) plot::@return
(byte) plot::idx
(byte) plot::idx#0 reg byte x 3.0
(byte) plot::x
(byte) plot::x#1 reg byte y 103.0
(const byte*) plots = (byte*) 4096

reg byte x [ main::i#2 main::i#1 ]
reg byte y [ line::x#2 line::x#1 ]
reg byte y [ plot::x#1 ]
reg byte x [ plot::idx#0 ]
reg byte a [ plot::$0 ]


FINAL ASSEMBLER
Score: 2013

  // File Comments
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  .label plots = $1000
  .label SCREEN = $400
  // @begin
  // [1] phi from @begin to @1 [phi:@begin->@1]
  // @1
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
  // [3] phi from @1 to @end [phi:@1->@end]
  // @end
  // main
main: {
    // [5] phi from main to main::@1 [phi:main->main::@1]
    // [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1 
    ldx #0
    // [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
    // [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy 
    // main::@1
  __b1:
    // plots[i] = i
    // [6] *((const byte*) plots + (byte) main::i#2) ← (byte) main::i#2 -- pbuc1_derefidx_vbuxx=vbuxx 
    txa
    sta plots,x
    // SCREEN[i] = 0
    // [7] *((const byte*) SCREEN + (byte) main::i#2) ← (byte) 0 -- pbuc1_derefidx_vbuxx=vbuc2 
    lda #0
    sta SCREEN,x
    // for(byte i : 0..39)
    // [8] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx 
    inx
    // [9] if((byte) main::i#1!=(byte) $28) goto main::@1 -- vbuxx_neq_vbuc1_then_la1 
    cpx #$28
    bne __b1
    // [10] phi from main::@1 main::@2 to main::@2 [phi:main::@1/main::@2->main::@2]
    // main::@2
  __b2:
    // line(0, 10)
    // [11] call line 
    // [12] phi from main::@2 to line [phi:main::@2->line]
    jsr line
    jmp __b2
}
  // line
line: {
    .const x0 = 0
    .const x1 = $a
    // [13] phi from line to line::@1 [phi:line->line::@1]
    // [13] phi (byte) line::x#2 = (const byte) line::x0#0 [phi:line->line::@1#0] -- vbuyy=vbuc1 
    ldy #x0
    // line::@1
  __b1:
    // for(byte x = x0; x<=x1; x++)
    // [14] if((byte) line::x#2<(const byte) line::x1#0+(byte) 1) goto line::@2 -- vbuyy_lt_vbuc1_then_la1 
    cpy #x1+1
    bcc __b2
    // line::@return
    // }
    // [15] return 
    rts
    // line::@2
  __b2:
    // plot(x)
    // [16] (byte) plot::x#1 ← (byte) line::x#2
    // [17] call plot 
    jsr plot
    // line::@3
    // for(byte x = x0; x<=x1; x++)
    // [18] (byte) line::x#1 ← ++ (byte) line::x#2 -- vbuyy=_inc_vbuyy 
    iny
    // [13] phi from line::@3 to line::@1 [phi:line::@3->line::@1]
    // [13] phi (byte) line::x#2 = (byte) line::x#1 [phi:line::@3->line::@1#0] -- register_copy 
    jmp __b1
}
  // plot
// plot(byte register(Y) x)
plot: {
    // idx = plots[x]
    // [19] (byte) plot::idx#0 ← *((const byte*) plots + (byte) plot::x#1) -- vbuxx=pbuc1_derefidx_vbuyy 
    ldx plots,y
    // SCREEN[idx]+1
    // [20] (byte~) plot::$0 ← *((const byte*) SCREEN + (byte) plot::idx#0) + (byte) 1 -- vbuaa=pbuc1_derefidx_vbuxx_plus_1 
    lda SCREEN,x
    clc
    adc #1
    // SCREEN[idx] = SCREEN[idx]+1
    // [21] *((const byte*) SCREEN + (byte) plot::idx#0) ← (byte~) plot::$0 -- pbuc1_derefidx_vbuxx=vbuaa 
    sta SCREEN,x
    // plot::@return
    // }
    // [22] return 
    rts
}
  // File Data

