CONTROL FLOW GRAPH SSA

(void()) main()
main: scope:[main]  from __start
  (number~) main::$0 ← (const byte) main::y + (number) 1
  (byte) main::p_x#0 ← (const byte) main::x
  (byte) main::p_y#0 ← (number~) main::$0
  *((const nomodify byte*) main::SCREEN + (number) 0) ← (byte) main::p_x#0
  *((const nomodify byte*) main::SCREEN + (number) 1) ← (byte) main::p_y#0
  to:main::@return
main::@return: scope:[main]  from main
  return 
  to:@return

(void()) __start()
__start: scope:[__start]  from
  call main 
  to:__start::@1
__start::@1: scope:[__start]  from __start
  to:__start::@return
__start::@return: scope:[__start]  from __start::@1
  return 
  to:@return

SYMBOL TABLE SSA
(byte) Point::x
(byte) Point::y
(void()) __start()
(label) __start::@1
(label) __start::@return
(void()) main()
(number~) main::$0
(label) main::@return
(const nomodify byte*) main::SCREEN = (byte*)(number) $400
(byte) main::p_x
(byte) main::p_x#0
(byte) main::p_y
(byte) main::p_y#0
(const byte) main::x = (byte) 2
(const byte) main::y = (byte) 3

Adding number conversion cast (unumber) 1 in (number~) main::$0 ← (const byte) main::y + (number) 1
Adding number conversion cast (unumber) main::$0 in (number~) main::$0 ← (const byte) main::y + (unumber)(number) 1
Adding number conversion cast (unumber) 0 in *((const nomodify byte*) main::SCREEN + (number) 0) ← (byte) main::p_x#0
Adding number conversion cast (unumber) 1 in *((const nomodify byte*) main::SCREEN + (number) 1) ← (byte) main::p_y#0
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast 1
Simplifying constant integer cast 0
Simplifying constant integer cast 1
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 1
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to byte in (unumber~) main::$0 ← (const byte) main::y + (byte) 1
Alias main::p_y#0 = main::$0 
Successful SSA optimization Pass2AliasElimination
Constant right-side identified [0] (byte) main::p_y#0 ← (const byte) main::y + (byte) 1
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const byte) main::p_y#0 = main::y+1
Constant (const byte) main::p_x#0 = main::x
Successful SSA optimization Pass2ConstantIdentification
Simplifying expression containing zero main::SCREEN in [2] *((const nomodify byte*) main::SCREEN + (byte) 0) ← (const byte) main::p_x#0
Successful SSA optimization PassNSimplifyExpressionWithZero
Removing unused procedure __start
Removing unused procedure block __start
Removing unused procedure block __start::@1
Removing unused procedure block __start::@return
Successful SSA optimization PassNEliminateEmptyStart
Constant inlined main::p_x#0 = (const byte) main::x
Successful SSA optimization Pass2ConstantInlining
Consolidated array index constant in *(main::SCREEN+1)
Successful SSA optimization Pass2ConstantAdditionElimination
CALL GRAPH

Created 0 initial phi equivalence classes
Coalesced down to 0 phi equivalence classes

FINAL CONTROL FLOW GRAPH

(void()) main()
main: scope:[main]  from
  [0] *((const nomodify byte*) main::SCREEN) ← (const byte) main::x
  [1] *((const nomodify byte*) main::SCREEN+(byte) 1) ← (const byte) main::p_y#0
  to:main::@return
main::@return: scope:[main]  from main
  [2] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(byte) Point::x
(byte) Point::y
(void()) main()
(byte) main::p_x
(byte) main::p_y

Initial phi equivalence classes
Complete equivalence classes

INITIAL ASM
Target platform is c64basic / MOS6502X
  // File Comments
// Minimal struct - initializing using a value list
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  // main
main: {
    .const x = 2
    .const y = 3
    .const p_y = y+1
    .label SCREEN = $400
    // [0] *((const nomodify byte*) main::SCREEN) ← (const byte) main::x -- _deref_pbuc1=vbuc2 
    lda #x
    sta SCREEN
    // [1] *((const nomodify byte*) main::SCREEN+(byte) 1) ← (const byte) main::p_y#0 -- _deref_pbuc1=vbuc2 
    lda #p_y
    sta SCREEN+1
    jmp __breturn
    // main::@return
  __breturn:
    // [2] return 
    rts
}
  // File Data

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [0] *((const nomodify byte*) main::SCREEN) ← (const byte) main::x [ ] (  [ ] { }  ) always clobbers reg byte a 
Statement [1] *((const nomodify byte*) main::SCREEN+(byte) 1) ← (const byte) main::p_y#0 [ ] (  [ ] { }  ) always clobbers reg byte a 

REGISTER UPLIFT SCOPES
Uplift Scope [Point] 
Uplift Scope [main] 
Uplift Scope [] 

Uplifting [Point] best 21 combination 
Uplifting [main] best 21 combination 
Uplifting [] best 21 combination 

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Minimal struct - initializing using a value list
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  // main
main: {
    .const x = 2
    .const y = 3
    .const p_y = y+1
    .label SCREEN = $400
    // [0] *((const nomodify byte*) main::SCREEN) ← (const byte) main::x -- _deref_pbuc1=vbuc2 
    lda #x
    sta SCREEN
    // [1] *((const nomodify byte*) main::SCREEN+(byte) 1) ← (const byte) main::p_y#0 -- _deref_pbuc1=vbuc2 
    lda #p_y
    sta SCREEN+1
    jmp __breturn
    // main::@return
  __breturn:
    // [2] return 
    rts
}
  // File Data

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp __breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction __breturn:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(byte) Point::x
(byte) Point::y
(void()) main()
(label) main::@return
(const nomodify byte*) main::SCREEN = (byte*) 1024
(byte) main::p_x
(byte) main::p_y
(const byte) main::p_y#0 p_y = (const byte) main::y+(byte) 1
(const byte) main::x = (byte) 2
(const byte) main::y = (byte) 3



FINAL ASSEMBLER
Score: 18

  // File Comments
// Minimal struct - initializing using a value list
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  // main
main: {
    .const x = 2
    .const y = 3
    .const p_y = y+1
    .label SCREEN = $400
    // SCREEN[0] = p.x
    // [0] *((const nomodify byte*) main::SCREEN) ← (const byte) main::x -- _deref_pbuc1=vbuc2 
    lda #x
    sta SCREEN
    // SCREEN[1] = p.y
    // [1] *((const nomodify byte*) main::SCREEN+(byte) 1) ← (const byte) main::p_y#0 -- _deref_pbuc1=vbuc2 
    lda #p_y
    sta SCREEN+1
    // main::@return
    // }
    // [2] return 
    rts
}
  // File Data