Fixing pointer array-indexing *((struct Point[2]) points + (number) 0)
Fixing pointer array-indexing *((struct Point[2]) points + (number) 1)
Fixing pointer array-indexing *((struct Point[2]) points + (byte) main::i)
Created struct value member variable (byte) print::p_x
Created struct value member variable (byte) print::p_y
Converted struct value to member variables (struct Point) print::p
Converted procedure struct value parameter to member unwinding (void()) print((byte) print::p_x , (byte) print::p_y)
Adding struct value list initializer *((byte*) main::$5 + (number~) main::$2) ← (number) 1
Adding struct value list initializer *((byte*) main::$6 + (number~) main::$2) ← (number) 2
Adding struct value list initializer *((byte*) main::$7 + (number~) main::$3) ← (number) 3
Adding struct value list initializer *((byte*) main::$8 + (number~) main::$3) ← (number) 4
Converted procedure struct value parameter to member unwinding in call (void~) main::$0 ← call print *((byte*) main::$9 + (byte~) main::$4) *((byte*) main::$10 + (byte~) main::$4) 
Replacing struct member reference (struct Point) print::p.x with member unwinding reference (byte) print::p_x
Replacing struct member reference (struct Point) print::p.y with member unwinding reference (byte) print::p_y
Culled Empty Block (label) main::@2
Culled Empty Block (label) @1

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  (byte*) SCREEN#0 ← ((byte*)) (number) $400
  (byte) idx#0 ← (number) 0
  (struct Point[2]) points#0 ← { fill( 2, 0) }
  to:@2
main: scope:[main]  from @2
  (byte) idx#14 ← phi( @2/(byte) idx#13 )
  (number~) main::$2 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
  (byte*) main::$5 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
  *((byte*) main::$5 + (number~) main::$2) ← (number) 1
  (byte*) main::$6 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
  *((byte*) main::$6 + (number~) main::$2) ← (number) 2
  (number~) main::$3 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
  (byte*) main::$7 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
  *((byte*) main::$7 + (number~) main::$3) ← (number) 3
  (byte*) main::$8 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
  *((byte*) main::$8 + (number~) main::$3) ← (number) 4
  (byte) main::i#0 ← (byte) 0
  to:main::@1
main::@1: scope:[main]  from main main::@3
  (byte) idx#12 ← phi( main/(byte) idx#14 main::@3/(byte) idx#1 )
  (byte) main::i#2 ← phi( main/(byte) main::i#0 main::@3/(byte) main::i#1 )
  (byte~) main::$4 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
  (byte) print::p_x#0 ← *((byte*) main::$9 + (byte~) main::$4)
  (byte) print::p_y#0 ← *((byte*) main::$10 + (byte~) main::$4)
  call print 
  to:main::@3
main::@3: scope:[main]  from main::@1
  (byte) main::i#3 ← phi( main::@1/(byte) main::i#2 )
  (byte) idx#7 ← phi( main::@1/(byte) idx#5 )
  (byte) idx#1 ← (byte) idx#7
  (byte*) main::$9 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
  (byte*) main::$10 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
  (byte) main::i#1 ← (byte) main::i#3 + rangenext(0,1)
  (bool~) main::$1 ← (byte) main::i#1 != rangelast(0,1)
  if((bool~) main::$1) goto main::@1
  to:main::@return
main::@return: scope:[main]  from main::@3
  (byte) idx#8 ← phi( main::@3/(byte) idx#1 )
  (byte) idx#2 ← (byte) idx#8
  return 
  to:@return
print: scope:[print]  from main::@1
  (byte) print::p_y#1 ← phi( main::@1/(byte) print::p_y#0 )
  (byte) idx#9 ← phi( main::@1/(byte) idx#12 )
  (byte) print::p_x#1 ← phi( main::@1/(byte) print::p_x#0 )
  *((byte*) SCREEN#0 + (byte) idx#9) ← (byte) print::p_x#1
  (byte) idx#3 ← ++ (byte) idx#9
  *((byte*) SCREEN#0 + (byte) idx#3) ← (byte) print::p_y#1
  (byte) idx#4 ← ++ (byte) idx#3
  to:print::@return
print::@return: scope:[print]  from print
  (byte) idx#10 ← phi( print/(byte) idx#4 )
  (byte) idx#5 ← (byte) idx#10
  return 
  to:@return
@2: scope:[]  from @begin
  (byte) idx#13 ← phi( @begin/(byte) idx#0 )
  call main 
  to:@3
@3: scope:[]  from @2
  (byte) idx#11 ← phi( @2/(byte) idx#2 )
  (byte) idx#6 ← (byte) idx#11
  to:@end
@end: scope:[]  from @3

SYMBOL TABLE SSA
(label) @2
(label) @3
(label) @begin
(label) @end
(const byte) OFFSET_STRUCT_POINT_X = (byte) 0
(const byte) OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(byte*) SCREEN
(byte*) SCREEN#0
(const byte) SIZEOF_STRUCT_POINT = (byte) 2
(byte) idx
(byte) idx#0
(byte) idx#1
(byte) idx#10
(byte) idx#11
(byte) idx#12
(byte) idx#13
(byte) idx#14
(byte) idx#2
(byte) idx#3
(byte) idx#4
(byte) idx#5
(byte) idx#6
(byte) idx#7
(byte) idx#8
(byte) idx#9
(void()) main()
(bool~) main::$1
(byte*) main::$10
(number~) main::$2
(number~) main::$3
(byte~) main::$4
(byte*) main::$5
(byte*) main::$6
(byte*) main::$7
(byte*) main::$8
(byte*) main::$9
(label) main::@1
(label) main::@3
(label) main::@return
(byte) main::i
(byte) main::i#0
(byte) main::i#1
(byte) main::i#2
(byte) main::i#3
(struct Point[2]) points
(struct Point[2]) points#0
(void()) print((byte) print::p_x , (byte) print::p_y)
(label) print::@return
(struct Point) print::p
(byte) print::p_x
(byte) print::p_x#0
(byte) print::p_x#1
(byte) print::p_y
(byte) print::p_y#0
(byte) print::p_y#1

Adding number conversion cast (unumber) 0 in (byte) idx#0 ← (number) 0
Adding number conversion cast (unumber) 0 in (number~) main::$2 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$2 in (number~) main::$2 ← (unumber)(number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 1 in *((byte*) main::$5 + (unumber~) main::$2) ← (number) 1
Adding number conversion cast (unumber) 2 in *((byte*) main::$6 + (unumber~) main::$2) ← (number) 2
Adding number conversion cast (unumber) 1 in (number~) main::$3 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$3 in (number~) main::$3 ← (unumber)(number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 3 in *((byte*) main::$7 + (unumber~) main::$3) ← (number) 3
Adding number conversion cast (unumber) 4 in *((byte*) main::$8 + (unumber~) main::$3) ← (number) 4
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast (byte*) SCREEN#0 ← (byte*)(number) $400
Inlining cast (byte) idx#0 ← (unumber)(number) 0
Inlining cast *((byte*) main::$5 + (unumber~) main::$2) ← (unumber)(number) 1
Inlining cast *((byte*) main::$6 + (unumber~) main::$2) ← (unumber)(number) 2
Inlining cast *((byte*) main::$7 + (unumber~) main::$3) ← (unumber)(number) 3
Inlining cast *((byte*) main::$8 + (unumber~) main::$3) ← (unumber)(number) 4
Successful SSA optimization Pass2InlineCast
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast 0
Simplifying constant integer cast 0
Simplifying constant integer cast 1
Simplifying constant integer cast 2
Simplifying constant integer cast 1
Simplifying constant integer cast 3
Simplifying constant integer cast 4
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 2
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 3
Finalized unsigned number type (byte) 4
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to byte in (unumber~) main::$2 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Inferred type updated to byte in (unumber~) main::$3 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Alias (byte) main::i#2 = (byte) main::i#3 
Alias (byte) idx#1 = (byte) idx#7 (byte) idx#8 (byte) idx#2 
Alias (byte) idx#10 = (byte) idx#4 (byte) idx#5 
Alias (byte) idx#0 = (byte) idx#13 
Alias (byte) idx#11 = (byte) idx#6 
Successful SSA optimization Pass2AliasElimination
Identical Phi Values (byte) idx#14 (byte) idx#0
Identical Phi Values (byte) idx#1 (byte) idx#10
Identical Phi Values (byte) print::p_x#1 (byte) print::p_x#0
Identical Phi Values (byte) idx#9 (byte) idx#12
Identical Phi Values (byte) print::p_y#1 (byte) print::p_y#0
Identical Phi Values (byte) idx#11 (byte) idx#1
Successful SSA optimization Pass2IdenticalPhiElimination
Simple Condition (bool~) main::$1 [26] if((byte) main::i#1!=rangelast(0,1)) goto main::@1
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant right-side identified [2] (struct Point[2]) points#0 ← { fill( 2, 0) }
Constant right-side identified [4] (byte~) main::$2 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [9] (byte~) main::$3 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const byte*) SCREEN#0 = (byte*) 1024
Constant (const byte) idx#0 = 0
Constant (const struct Point[2]) points#0 = { fill( 2, 0) }
Constant (const byte) main::$2 = 0*SIZEOF_STRUCT_POINT
Constant (const byte) main::$3 = 1*SIZEOF_STRUCT_POINT
Constant (const byte) main::i#0 = 0
Successful SSA optimization Pass2ConstantIdentification
Constant value identified (byte*)points#0 in [5] (byte*) main::$5 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [7] (byte*) main::$6 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant value identified (byte*)points#0 in [10] (byte*) main::$7 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [12] (byte*) main::$8 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant value identified (byte*)points#0 in [22] (byte*) main::$9 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [23] (byte*) main::$10 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantValues
Resolved ranged next value [24] main::i#1 ← ++ main::i#2 to ++
Resolved ranged comparison value [26] if(main::i#1!=rangelast(0,1)) goto main::@1 to (number) 2
Simplifying constant evaluating to zero (byte) 0*(const byte) SIZEOF_STRUCT_POINT in 
Successful SSA optimization PassNSimplifyConstantZero
Simplifying expression containing zero (byte*)points#0 in [5] (byte*) main::$5 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero main::$5 in [6] *((byte*) main::$5 + (const byte) main::$2) ← (byte) 1
Simplifying expression containing zero main::$6 in [8] *((byte*) main::$6 + (const byte) main::$2) ← (byte) 2
Simplifying expression containing zero (byte*)points#0 in [10] (byte*) main::$7 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero (byte*)points#0 in [22] (byte*) main::$9 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNSimplifyExpressionWithZero
Eliminating unused constant (const byte) main::$2
Eliminating unused constant (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNEliminateUnusedVars
Adding number conversion cast (unumber) 2 in if((byte) main::i#1!=(number) 2) goto main::@1
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant integer cast 2
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 2
Successful SSA optimization PassNFinalizeNumberTypeConversions
Constant right-side identified [2] (byte*) main::$6 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant right-side identified [6] (byte*) main::$8 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant right-side identified [14] (byte*) main::$10 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const byte*) main::$5 = (byte*)points#0
Constant (const byte*) main::$6 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Constant (const byte*) main::$7 = (byte*)points#0
Constant (const byte*) main::$8 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Constant (const byte*) main::$9 = (byte*)points#0
Constant (const byte*) main::$10 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantIdentification
Rewriting multiplication to use shift [5] (byte~) main::$4 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization Pass2MultiplyToShiftRewriting
Inlining constant with var siblings (const byte) main::i#0
Inlining constant with var siblings (const byte) idx#0
Constant inlined main::$5 = (byte*)(const struct Point[2]) points#0
Constant inlined main::i#0 = (byte) 0
Constant inlined main::$6 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Constant inlined main::$3 = (byte) 1*(const byte) SIZEOF_STRUCT_POINT
Constant inlined main::$9 = (byte*)(const struct Point[2]) points#0
Constant inlined idx#0 = (byte) 0
Constant inlined main::$7 = (byte*)(const struct Point[2]) points#0
Constant inlined main::$10 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Constant inlined main::$8 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantInlining
Consolidated array index constant in *((byte*)points#0+1*SIZEOF_STRUCT_POINT)
Consolidated array index constant in *((byte*)points#0+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT)
Successful SSA optimization Pass2ConstantAdditionElimination
Added new block during phi lifting main::@4(between main::@3 and main::@1)
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @2
Adding NOP phi() at start of @3
Adding NOP phi() at start of @end
CALL GRAPH
Calls in [] to main:2 
Calls in [main] to print:13 

Created 2 initial phi equivalence classes
Coalesced [17] main::i#4 ← main::i#1
Coalesced [18] idx#15 ← idx#10
Coalesced down to 2 phi equivalence classes
Culled Empty Block (label) @3
Culled Empty Block (label) main::@4
Renumbering block @2 to @1
Renumbering block main::@3 to main::@2
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end

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] *((byte*)(const struct Point[2]) points#0) ← (byte) 1
  [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 2
  [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 3
  [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 4
  to:main::@1
main::@1: scope:[main]  from main main::@2
  [8] (byte) idx#12 ← phi( main/(byte) 0 main::@2/(byte) idx#10 )
  [8] (byte) main::i#2 ← phi( main/(byte) 0 main::@2/(byte) main::i#1 )
  [9] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1
  [10] (byte) print::p_x#0 ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$4)
  [11] (byte) print::p_y#0 ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$4)
  [12] call print 
  to:main::@2
main::@2: scope:[main]  from main::@1
  [13] (byte) main::i#1 ← ++ (byte) main::i#2
  [14] if((byte) main::i#1!=(byte) 2) goto main::@1
  to:main::@return
main::@return: scope:[main]  from main::@2
  [15] return 
  to:@return
print: scope:[print]  from main::@1
  [16] *((const byte*) SCREEN#0 + (byte) idx#12) ← (byte) print::p_x#0
  [17] (byte) idx#3 ← ++ (byte) idx#12
  [18] *((const byte*) SCREEN#0 + (byte) idx#3) ← (byte) print::p_y#0
  [19] (byte) idx#10 ← ++ (byte) idx#3
  to:print::@return
print::@return: scope:[print]  from print
  [20] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(byte) Point::x
(byte) Point::y
(byte*) SCREEN
(byte) idx
(byte) idx#10 2.6
(byte) idx#12 3.0
(byte) idx#3 3.0
(void()) main()
(byte~) main::$4 16.5
(byte) main::i
(byte) main::i#1 16.5
(byte) main::i#2 6.6000000000000005
(struct Point[2]) points
(void()) print((byte) print::p_x , (byte) print::p_y)
(struct Point) print::p
(byte) print::p_x
(byte) print::p_x#0 6.5
(byte) print::p_y
(byte) print::p_y#0 4.333333333333333

Initial phi equivalence classes
[ main::i#2 main::i#1 ]
[ idx#12 idx#10 ]
Added variable main::$4 to zero page equivalence class [ main::$4 ]
Added variable print::p_x#0 to zero page equivalence class [ print::p_x#0 ]
Added variable print::p_y#0 to zero page equivalence class [ print::p_y#0 ]
Added variable idx#3 to zero page equivalence class [ idx#3 ]
Complete equivalence classes
[ main::i#2 main::i#1 ]
[ idx#12 idx#10 ]
[ main::$4 ]
[ print::p_x#0 ]
[ print::p_y#0 ]
[ idx#3 ]
Allocated zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Allocated zp ZP_BYTE:3 [ idx#12 idx#10 ]
Allocated zp ZP_BYTE:4 [ main::$4 ]
Allocated zp ZP_BYTE:5 [ print::p_x#0 ]
Allocated zp ZP_BYTE:6 [ print::p_y#0 ]
Allocated zp ZP_BYTE:7 [ idx#3 ]

INITIAL ASM
Target platform is c64basic
  // File Comments
// Demonstrates problem with passing struct array element as parameter to call
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .const SIZEOF_STRUCT_POINT = 2
  .const OFFSET_STRUCT_POINT_Y = 1
  .label SCREEN = $400
  .label idx = 7
  .label idx_10 = 3
  .label idx_12 = 3
  // @begin
bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
  jmp b1
  // @1
b1:
  // [2] call main 
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
  jmp bend
  // @end
bend:
  // main
main: {
    .label _4 = 4
    .label i = 2
    // [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 1 -- _deref_pbuc1=vbuc2 
    lda #1
    sta points
    // [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 2 -- _deref_pbuc1=vbuc2 
    lda #2
    sta points+OFFSET_STRUCT_POINT_Y
    // [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 3 -- _deref_pbuc1=vbuc2 
    lda #3
    sta points+1*SIZEOF_STRUCT_POINT
    // [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 4 -- _deref_pbuc1=vbuc2 
    lda #4
    sta points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
    // [8] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
    // [8] phi (byte) idx#12 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta.z idx_12
    // [8] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuz1=vbuc1 
    lda #0
    sta.z i
    jmp b1
    // [8] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
  b1_from_b2:
    // [8] phi (byte) idx#12 = (byte) idx#10 [phi:main::@2->main::@1#0] -- register_copy 
    // [8] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#1] -- register_copy 
    jmp b1
    // main::@1
  b1:
    // [9] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
    lda.z i
    asl
    sta.z _4
    // [10] (byte) print::p_x#0 ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$4) -- vbuz1=pbuc1_derefidx_vbuz2 
    ldy.z _4
    lda points,y
    sta.z print.p_x
    // [11] (byte) print::p_y#0 ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$4) -- vbuz1=pbuc1_derefidx_vbuz2 
    ldy.z _4
    lda points+OFFSET_STRUCT_POINT_Y,y
    sta.z print.p_y
    // [12] call print 
    jsr print
    jmp b2
    // main::@2
  b2:
    // [13] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1 
    inc.z i
    // [14] if((byte) main::i#1!=(byte) 2) goto main::@1 -- vbuz1_neq_vbuc1_then_la1 
    lda #2
    cmp.z i
    bne b1_from_b2
    jmp breturn
    // main::@return
  breturn:
    // [15] return 
    rts
}
  // print
// print(byte zeropage(5) p_x, byte zeropage(6) p_y)
print: {
    .label p_x = 5
    .label p_y = 6
    // [16] *((const byte*) SCREEN#0 + (byte) idx#12) ← (byte) print::p_x#0 -- pbuc1_derefidx_vbuz1=vbuz2 
    lda.z p_x
    ldy.z idx_12
    sta SCREEN,y
    // [17] (byte) idx#3 ← ++ (byte) idx#12 -- vbuz1=_inc_vbuz2 
    ldy.z idx_12
    iny
    sty.z idx
    // [18] *((const byte*) SCREEN#0 + (byte) idx#3) ← (byte) print::p_y#0 -- pbuc1_derefidx_vbuz1=vbuz2 
    lda.z p_y
    ldy.z idx
    sta SCREEN,y
    // [19] (byte) idx#10 ← ++ (byte) idx#3 -- vbuz1=_inc_vbuz2 
    ldy.z idx
    iny
    sty.z idx_10
    jmp breturn
    // print::@return
  breturn:
    // [20] return 
    rts
}
  // File Data
  points: .fill 2*2, 0

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 1 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 2 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 3 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 4 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [9] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 [ main::i#2 idx#12 main::$4 ] ( main:2 [ main::i#2 idx#12 main::$4 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:3 [ idx#12 idx#10 ]
Statement [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 1 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 2 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 3 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 4 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [9] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 [ main::i#2 idx#12 main::$4 ] ( main:2 [ main::i#2 idx#12 main::$4 ] ) always clobbers reg byte a 
Potential registers zp ZP_BYTE:2 [ main::i#2 main::i#1 ] : zp ZP_BYTE:2 , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:3 [ idx#12 idx#10 ] : zp ZP_BYTE:3 , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:4 [ main::$4 ] : zp ZP_BYTE:4 , reg byte a , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:5 [ print::p_x#0 ] : zp ZP_BYTE:5 , reg byte a , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:6 [ print::p_y#0 ] : zp ZP_BYTE:6 , reg byte a , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:7 [ idx#3 ] : zp ZP_BYTE:7 , reg byte a , reg byte x , reg byte y , 

REGISTER UPLIFT SCOPES
Uplift Scope [main] 23.1: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 16.5: zp ZP_BYTE:4 [ main::$4 ] 
Uplift Scope [print] 6.5: zp ZP_BYTE:5 [ print::p_x#0 ] 4.33: zp ZP_BYTE:6 [ print::p_y#0 ] 
Uplift Scope [] 5.6: zp ZP_BYTE:3 [ idx#12 idx#10 ] 3: zp ZP_BYTE:7 [ idx#3 ] 
Uplift Scope [Point] 

Uplifting [main] best 614 combination reg byte x [ main::i#2 main::i#1 ] reg byte y [ main::$4 ] 
Uplifting [print] best 614 combination zp ZP_BYTE:5 [ print::p_x#0 ] zp ZP_BYTE:6 [ print::p_y#0 ] 
Uplifting [] best 605 combination zp ZP_BYTE:3 [ idx#12 idx#10 ] reg byte y [ idx#3 ] 
Uplifting [Point] best 605 combination 
Attempting to uplift remaining variables inzp ZP_BYTE:5 [ print::p_x#0 ]
Uplifting [print] best 605 combination zp ZP_BYTE:5 [ print::p_x#0 ] 
Attempting to uplift remaining variables inzp ZP_BYTE:3 [ idx#12 idx#10 ]
Uplifting [] best 605 combination zp ZP_BYTE:3 [ idx#12 idx#10 ] 
Attempting to uplift remaining variables inzp ZP_BYTE:6 [ print::p_y#0 ]
Uplifting [print] best 605 combination zp ZP_BYTE:6 [ print::p_y#0 ] 
Allocated (was zp ZP_BYTE:3) zp ZP_BYTE:2 [ idx#12 idx#10 ]
Allocated (was zp ZP_BYTE:5) zp ZP_BYTE:3 [ print::p_x#0 ]
Allocated (was zp ZP_BYTE:6) zp ZP_BYTE:4 [ print::p_y#0 ]

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Demonstrates problem with passing struct array element as parameter to call
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .const SIZEOF_STRUCT_POINT = 2
  .const OFFSET_STRUCT_POINT_Y = 1
  .label SCREEN = $400
  .label idx = 2
  // @begin
bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
  jmp b1
  // @1
b1:
  // [2] call main 
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
  jmp bend
  // @end
bend:
  // main
main: {
    // [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 1 -- _deref_pbuc1=vbuc2 
    lda #1
    sta points
    // [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 2 -- _deref_pbuc1=vbuc2 
    lda #2
    sta points+OFFSET_STRUCT_POINT_Y
    // [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 3 -- _deref_pbuc1=vbuc2 
    lda #3
    sta points+1*SIZEOF_STRUCT_POINT
    // [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 4 -- _deref_pbuc1=vbuc2 
    lda #4
    sta points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
    // [8] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
    // [8] phi (byte) idx#12 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta.z idx
    // [8] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuxx=vbuc1 
    ldx #0
    jmp b1
    // [8] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
  b1_from_b2:
    // [8] phi (byte) idx#12 = (byte) idx#10 [phi:main::@2->main::@1#0] -- register_copy 
    // [8] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#1] -- register_copy 
    jmp b1
    // main::@1
  b1:
    // [9] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 -- vbuyy=vbuxx_rol_1 
    txa
    asl
    tay
    // [10] (byte) print::p_x#0 ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$4) -- vbuz1=pbuc1_derefidx_vbuyy 
    lda points,y
    sta.z print.p_x
    // [11] (byte) print::p_y#0 ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$4) -- vbuz1=pbuc1_derefidx_vbuyy 
    lda points+OFFSET_STRUCT_POINT_Y,y
    sta.z print.p_y
    // [12] call print 
    jsr print
    jmp b2
    // main::@2
  b2:
    // [13] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx 
    inx
    // [14] if((byte) main::i#1!=(byte) 2) goto main::@1 -- vbuxx_neq_vbuc1_then_la1 
    cpx #2
    bne b1_from_b2
    jmp breturn
    // main::@return
  breturn:
    // [15] return 
    rts
}
  // print
// print(byte zeropage(3) p_x, byte zeropage(4) p_y)
print: {
    .label p_x = 3
    .label p_y = 4
    // [16] *((const byte*) SCREEN#0 + (byte) idx#12) ← (byte) print::p_x#0 -- pbuc1_derefidx_vbuz1=vbuz2 
    lda.z p_x
    ldy.z idx
    sta SCREEN,y
    // [17] (byte) idx#3 ← ++ (byte) idx#12 -- vbuyy=_inc_vbuz1 
    ldy.z idx
    iny
    // [18] *((const byte*) SCREEN#0 + (byte) idx#3) ← (byte) print::p_y#0 -- pbuc1_derefidx_vbuyy=vbuz1 
    lda.z p_y
    sta SCREEN,y
    // [19] (byte) idx#10 ← ++ (byte) idx#3 -- vbuz1=_inc_vbuyy 
    iny
    sty.z idx
    jmp breturn
    // print::@return
  breturn:
    // [20] return 
    rts
}
  // File Data
  points: .fill 2*2, 0

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp breturn
Removing instruction jmp breturn
Succesful ASM optimization Pass5NextJumpElimination
Replacing instruction ldx #0 with TAX
Removing instruction ldy.z idx
Succesful ASM optimization Pass5UnnecesaryLoadElimination
Replacing label b1_from_b2 with b1
Removing instruction b1_from_bbegin:
Removing instruction b1:
Removing instruction bend_from_b1:
Removing instruction b1_from_b2:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction b1_from_main:
Removing instruction b2:
Removing instruction breturn:
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 bbegin:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(byte*) SCREEN
(const byte*) SCREEN#0 SCREEN = (byte*) 1024
(const byte) SIZEOF_STRUCT_POINT SIZEOF_STRUCT_POINT = (byte) 2
(byte) idx
(byte) idx#10 idx zp ZP_BYTE:2 2.6
(byte) idx#12 idx zp ZP_BYTE:2 3.0
(byte) idx#3 reg byte y 3.0
(void()) main()
(byte~) main::$4 reg byte y 16.5
(label) main::@1
(label) main::@2
(label) main::@return
(byte) main::i
(byte) main::i#1 reg byte x 16.5
(byte) main::i#2 reg byte x 6.6000000000000005
(struct Point[2]) points
(const struct Point[2]) points#0 points = { fill( 2, 0) }
(void()) print((byte) print::p_x , (byte) print::p_y)
(label) print::@return
(struct Point) print::p
(byte) print::p_x
(byte) print::p_x#0 p_x zp ZP_BYTE:3 6.5
(byte) print::p_y
(byte) print::p_y#0 p_y zp ZP_BYTE:4 4.333333333333333

reg byte x [ main::i#2 main::i#1 ]
zp ZP_BYTE:2 [ idx#12 idx#10 ]
reg byte y [ main::$4 ]
zp ZP_BYTE:3 [ print::p_x#0 ]
zp ZP_BYTE:4 [ print::p_y#0 ]
reg byte y [ idx#3 ]


FINAL ASSEMBLER
Score: 467

  // File Comments
// Demonstrates problem with passing struct array element as parameter to call
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  .const SIZEOF_STRUCT_POINT = 2
  .const OFFSET_STRUCT_POINT_Y = 1
  .label SCREEN = $400
  .label idx = 2
  // @begin
  // [1] phi from @begin to @1 [phi:@begin->@1]
  // @1
  // [2] call main 
  // [3] phi from @1 to @end [phi:@1->@end]
  // @end
  // main
main: {
    // points[0] = { 1, 2 }
    // [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 1 -- _deref_pbuc1=vbuc2 
    lda #1
    sta points
    // [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 2 -- _deref_pbuc1=vbuc2 
    lda #2
    sta points+OFFSET_STRUCT_POINT_Y
    // points[1] = { 3, 4 }
    // [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 3 -- _deref_pbuc1=vbuc2 
    lda #3
    sta points+1*SIZEOF_STRUCT_POINT
    // [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 4 -- _deref_pbuc1=vbuc2 
    lda #4
    sta points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
    // [8] phi from main to main::@1 [phi:main->main::@1]
    // [8] phi (byte) idx#12 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta.z idx
    // [8] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuxx=vbuc1 
    tax
    // [8] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
    // [8] phi (byte) idx#12 = (byte) idx#10 [phi:main::@2->main::@1#0] -- register_copy 
    // [8] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#1] -- register_copy 
    // main::@1
  b1:
    // print(points[i])
    // [9] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 -- vbuyy=vbuxx_rol_1 
    txa
    asl
    tay
    // [10] (byte) print::p_x#0 ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$4) -- vbuz1=pbuc1_derefidx_vbuyy 
    lda points,y
    sta.z print.p_x
    // [11] (byte) print::p_y#0 ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$4) -- vbuz1=pbuc1_derefidx_vbuyy 
    lda points+OFFSET_STRUCT_POINT_Y,y
    sta.z print.p_y
    // [12] call print 
    jsr print
    // main::@2
    // for ( char i: 0..1)
    // [13] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx 
    inx
    // [14] if((byte) main::i#1!=(byte) 2) goto main::@1 -- vbuxx_neq_vbuc1_then_la1 
    cpx #2
    bne b1
    // main::@return
    // }
    // [15] return 
    rts
}
  // print
// print(byte zeropage(3) p_x, byte zeropage(4) p_y)
print: {
    .label p_x = 3
    .label p_y = 4
    // SCREEN[idx++] = p.x
    // [16] *((const byte*) SCREEN#0 + (byte) idx#12) ← (byte) print::p_x#0 -- pbuc1_derefidx_vbuz1=vbuz2 
    lda.z p_x
    ldy.z idx
    sta SCREEN,y
    // SCREEN[idx++] = p.x;
    // [17] (byte) idx#3 ← ++ (byte) idx#12 -- vbuyy=_inc_vbuz1 
    iny
    // SCREEN[idx++] = p.y
    // [18] *((const byte*) SCREEN#0 + (byte) idx#3) ← (byte) print::p_y#0 -- pbuc1_derefidx_vbuyy=vbuz1 
    lda.z p_y
    sta SCREEN,y
    // SCREEN[idx++] = p.y;
    // [19] (byte) idx#10 ← ++ (byte) idx#3 -- vbuz1=_inc_vbuyy 
    iny
    sty.z idx
    // print::@return
    // }
    // [20] return 
    rts
}
  // File Data
  points: .fill 2*2, 0

