Created struct value member variable (byte) main::p1_x
Created struct value member variable (byte) main::p1_y
Converted struct value to member variables (struct Point) main::p1
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 member variable default initializer (byte) main::p1_x ← (byte) 0
Adding struct value member variable default initializer (byte) main::p1_y ← (byte) 0
Converted procedure struct value parameter to member unwinding in call (void~) main::$0 ← call print (byte) main::p1_x (byte) main::p1_y 
Converted procedure struct value parameter to member unwinding in call (void~) main::$1 ← call print (byte) main::p1_x (byte) main::p1_y 
Replacing struct member reference (struct Point) main::p1.x with member unwinding reference (byte) main::p1_x
Replacing struct member reference (struct Point) main::p1.y with member unwinding reference (byte) main::p1_y
Replacing struct member reference (struct Point) main::p1.x with member unwinding reference (byte) main::p1_x
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

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@1
main: scope:[main]  from @2
  (byte) idx#14 ← phi( @2/(byte) idx#15 )
  (byte) main::p1_x#0 ← (byte) 0
  (byte) main::p1_y#0 ← (byte) 0
  (byte) main::p1_x#1 ← (number) 1
  (byte) main::p1_y#1 ← (number) 4
  (byte) print::p_x#0 ← (byte) main::p1_x#1
  (byte) print::p_y#0 ← (byte) main::p1_y#1
  call print 
  to:main::@1
main::@1: scope:[main]  from main
  (byte) main::p1_y#2 ← phi( main/(byte) main::p1_y#1 )
  (byte) idx#8 ← phi( main/(byte) idx#6 )
  (byte) idx#0 ← (byte) idx#8
  (byte) main::p1_x#2 ← (number) 2
  (byte) print::p_x#1 ← (byte) main::p1_x#2
  (byte) print::p_y#1 ← (byte) main::p1_y#2
  call print 
  to:main::@2
main::@2: scope:[main]  from main::@1
  (byte) idx#9 ← phi( main::@1/(byte) idx#6 )
  (byte) idx#1 ← (byte) idx#9
  to:main::@return
main::@return: scope:[main]  from main::@2
  (byte) idx#10 ← phi( main::@2/(byte) idx#1 )
  (byte) idx#2 ← (byte) idx#10
  return 
  to:@return
@1: scope:[]  from @begin
  (byte*) SCREEN#0 ← ((byte*)) (number) $400
  (byte) idx#3 ← (number) 0
  to:@2
print: scope:[print]  from main main::@1
  (byte) print::p_y#2 ← phi( main/(byte) print::p_y#0 main::@1/(byte) print::p_y#1 )
  (byte) idx#11 ← phi( main/(byte) idx#14 main::@1/(byte) idx#0 )
  (byte) print::p_x#2 ← phi( main/(byte) print::p_x#0 main::@1/(byte) print::p_x#1 )
  *((byte*) SCREEN#0 + (byte) idx#11) ← (byte) print::p_x#2
  (byte) idx#4 ← ++ (byte) idx#11
  *((byte*) SCREEN#0 + (byte) idx#4) ← (byte) print::p_y#2
  (byte) idx#5 ← ++ (byte) idx#4
  to:print::@return
print::@return: scope:[print]  from print
  (byte) idx#12 ← phi( print/(byte) idx#5 )
  (byte) idx#6 ← (byte) idx#12
  return 
  to:@return
@2: scope:[]  from @1
  (byte) idx#15 ← phi( @1/(byte) idx#3 )
  call main 
  to:@3
@3: scope:[]  from @2
  (byte) idx#13 ← phi( @2/(byte) idx#2 )
  (byte) idx#7 ← (byte) idx#13
  to:@end
@end: scope:[]  from @3

SYMBOL TABLE SSA
(label) @1
(label) @2
(label) @3
(label) @begin
(label) @end
(byte) Point::x
(byte) Point::y
(byte*) SCREEN
(byte*) SCREEN#0
(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#15
(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()
(label) main::@1
(label) main::@2
(label) main::@return
(byte) main::p1_x
(byte) main::p1_x#0
(byte) main::p1_x#1
(byte) main::p1_x#2
(byte) main::p1_y
(byte) main::p1_y#0
(byte) main::p1_y#1
(byte) main::p1_y#2
(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_x#2
(byte) print::p_y
(byte) print::p_y#0
(byte) print::p_y#1
(byte) print::p_y#2

Adding number conversion cast (unumber) 1 in (byte) main::p1_x#1 ← (number) 1
Adding number conversion cast (unumber) 4 in (byte) main::p1_y#1 ← (number) 4
Adding number conversion cast (unumber) 2 in (byte) main::p1_x#2 ← (number) 2
Adding number conversion cast (unumber) 0 in (byte) idx#3 ← (number) 0
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast (byte) main::p1_x#1 ← (unumber)(number) 1
Inlining cast (byte) main::p1_y#1 ← (unumber)(number) 4
Inlining cast (byte) main::p1_x#2 ← (unumber)(number) 2
Inlining cast (byte*) SCREEN#0 ← (byte*)(number) $400
Inlining cast (byte) idx#3 ← (unumber)(number) 0
Successful SSA optimization Pass2InlineCast
Simplifying constant integer cast 1
Simplifying constant integer cast 4
Simplifying constant integer cast 2
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast 0
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 4
Finalized unsigned number type (byte) 2
Finalized unsigned number type (byte) 0
Successful SSA optimization PassNFinalizeNumberTypeConversions
Alias (byte) main::p1_y#1 = (byte) main::p1_y#2 
Alias (byte) idx#0 = (byte) idx#8 
Alias (byte) idx#1 = (byte) idx#9 (byte) idx#10 (byte) idx#2 
Alias (byte) idx#12 = (byte) idx#5 (byte) idx#6 
Alias (byte) idx#15 = (byte) idx#3 
Alias (byte) idx#13 = (byte) idx#7 
Successful SSA optimization Pass2AliasElimination
Identical Phi Values (byte) idx#14 (byte) idx#15
Identical Phi Values (byte) idx#0 (byte) idx#12
Identical Phi Values (byte) idx#1 (byte) idx#12
Identical Phi Values (byte) idx#13 (byte) idx#1
Successful SSA optimization Pass2IdenticalPhiElimination
Constant (const byte) main::p1_x#0 = 0
Constant (const byte) main::p1_y#0 = 0
Constant (const byte) main::p1_x#1 = 1
Constant (const byte) main::p1_y#1 = 4
Constant (const byte) main::p1_x#2 = 2
Constant (const byte*) SCREEN#0 = (byte*) 1024
Constant (const byte) idx#15 = 0
Successful SSA optimization Pass2ConstantIdentification
Constant (const byte) print::p_x#0 = main::p1_x#1
Constant (const byte) print::p_y#0 = main::p1_y#1
Constant (const byte) print::p_x#1 = main::p1_x#2
Constant (const byte) print::p_y#1 = main::p1_y#1
Successful SSA optimization Pass2ConstantIdentification
Eliminating unused constant (const byte) main::p1_x#0
Eliminating unused constant (const byte) main::p1_y#0
Successful SSA optimization PassNEliminateUnusedVars
Inlining constant with different constant siblings (const byte) main::p1_x#1
Inlining constant with different constant siblings (const byte) main::p1_x#2
Inlining constant with var siblings (const byte) print::p_x#0
Inlining constant with var siblings (const byte) print::p_y#0
Inlining constant with var siblings (const byte) print::p_x#1
Inlining constant with var siblings (const byte) print::p_y#1
Inlining constant with var siblings (const byte) idx#15
Constant inlined print::p_x#0 = (byte) 1
Constant inlined print::p_y#1 = (const byte) main::p1_y#1
Constant inlined print::p_y#0 = (const byte) main::p1_y#1
Constant inlined print::p_x#1 = (byte) 2
Constant inlined main::p1_x#2 = (byte) 2
Constant inlined main::p1_x#1 = (byte) 1
Constant inlined idx#15 = (byte) 0
Successful SSA optimization Pass2ConstantInlining
Identical Phi Values (byte) print::p_y#2 (const byte) main::p1_y#1
Successful SSA optimization Pass2IdenticalPhiElimination
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @2
Adding NOP phi() at start of @3
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
Adding NOP phi() at start of main::@2
CALL GRAPH
Calls in [] to main:3 
Calls in [main] to print:7 print:9 

Created 2 initial phi equivalence classes
Coalesced [8] idx#16 ← idx#12
Coalesced down to 2 phi equivalence classes
Culled Empty Block (label) @1
Culled Empty Block (label) @3
Culled Empty Block (label) main::@2
Renumbering block @2 to @1
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::@1

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()
  [5] call print 
  to:main::@1
main::@1: scope:[main]  from main
  [6] phi()
  [7] call print 
  to:main::@return
main::@return: scope:[main]  from main::@1
  [8] return 
  to:@return
print: scope:[print]  from main main::@1
  [9] (byte) idx#11 ← phi( main/(byte) 0 main::@1/(byte) idx#12 )
  [9] (byte) print::p_x#2 ← phi( main/(byte) 1 main::@1/(byte) 2 )
  [10] *((const byte*) SCREEN#0 + (byte) idx#11) ← (byte) print::p_x#2
  [11] (byte) idx#4 ← ++ (byte) idx#11
  [12] *((const byte*) SCREEN#0 + (byte) idx#4) ← (const byte) main::p1_y#1
  [13] (byte) idx#12 ← ++ (byte) idx#4
  to:print::@return
print::@return: scope:[print]  from print
  [14] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(byte) Point::x
(byte) Point::y
(byte*) SCREEN
(byte) idx
(byte) idx#11 3.0
(byte) idx#12 1.0
(byte) idx#4 3.0
(void()) main()
(byte) main::p1_x
(byte) main::p1_y
(void()) print((byte) print::p_x , (byte) print::p_y)
(struct Point) print::p
(byte) print::p_x
(byte) print::p_x#2 2.0
(byte) print::p_y

Initial phi equivalence classes
[ print::p_x#2 ]
[ idx#11 idx#12 ]
Added variable idx#4 to zero page equivalence class [ idx#4 ]
Complete equivalence classes
[ print::p_x#2 ]
[ idx#11 idx#12 ]
[ idx#4 ]
Allocated zp ZP_BYTE:2 [ print::p_x#2 ]
Allocated zp ZP_BYTE:3 [ idx#11 idx#12 ]
Allocated zp ZP_BYTE:4 [ idx#4 ]

INITIAL ASM
Target platform is c64basic
  // File Comments
// Minimal struct - passing struct value parameter
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .label SCREEN = $400
  .label idx = 4
  .label idx_11 = 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 
  // [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 p1_y = 4
    // [5] call print 
    // [9] phi from main to print [phi:main->print]
  print_from_main:
    // [9] phi (byte) idx#11 = (byte) 0 [phi:main->print#0] -- vbuz1=vbuc1 
    lda #0
    sta.z idx_11
    // [9] phi (byte) print::p_x#2 = (byte) 1 [phi:main->print#1] -- vbuz1=vbuc1 
    lda #1
    sta.z print.p_x
    jsr print
    // [6] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
    jmp b1
    // main::@1
  b1:
    // [7] call print 
    // [9] phi from main::@1 to print [phi:main::@1->print]
  print_from_b1:
    // [9] phi (byte) idx#11 = (byte) idx#12 [phi:main::@1->print#0] -- register_copy 
    // [9] phi (byte) print::p_x#2 = (byte) 2 [phi:main::@1->print#1] -- vbuz1=vbuc1 
    lda #2
    sta.z print.p_x
    jsr print
    jmp breturn
    // main::@return
  breturn:
    // [8] return 
    rts
}
  // print
// print(byte zeropage(2) p_x)
print: {
    .label p_x = 2
    // [10] *((const byte*) SCREEN#0 + (byte) idx#11) ← (byte) print::p_x#2 -- pbuc1_derefidx_vbuz1=vbuz2 
    lda.z p_x
    ldy.z idx_11
    sta SCREEN,y
    // [11] (byte) idx#4 ← ++ (byte) idx#11 -- vbuz1=_inc_vbuz2 
    ldy.z idx_11
    iny
    sty.z idx
    // [12] *((const byte*) SCREEN#0 + (byte) idx#4) ← (const byte) main::p1_y#1 -- pbuc1_derefidx_vbuz1=vbuc2 
    lda #main.p1_y
    ldy.z idx
    sta SCREEN,y
    // [13] (byte) idx#12 ← ++ (byte) idx#4 -- vbuz1=_inc_vbuz2 
    ldy.z idx
    iny
    sty.z idx_12
    jmp breturn
    // print::@return
  breturn:
    // [14] return 
    rts
}
  // File Data

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [12] *((const byte*) SCREEN#0 + (byte) idx#4) ← (const byte) main::p1_y#1 [ idx#4 ] ( main:2::print:5 [ idx#4 ] main:2::print:7 [ idx#4 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:4 [ idx#4 ]
Statement [12] *((const byte*) SCREEN#0 + (byte) idx#4) ← (const byte) main::p1_y#1 [ idx#4 ] ( main:2::print:5 [ idx#4 ] main:2::print:7 [ idx#4 ] ) always clobbers reg byte a 
Potential registers zp ZP_BYTE:2 [ print::p_x#2 ] : zp ZP_BYTE:2 , reg byte a , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:3 [ idx#11 idx#12 ] : zp ZP_BYTE:3 , reg byte a , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:4 [ idx#4 ] : zp ZP_BYTE:4 , reg byte x , reg byte y , 

REGISTER UPLIFT SCOPES
Uplift Scope [] 4: zp ZP_BYTE:3 [ idx#11 idx#12 ] 3: zp ZP_BYTE:4 [ idx#4 ] 
Uplift Scope [print] 2: zp ZP_BYTE:2 [ print::p_x#2 ] 
Uplift Scope [Point] 
Uplift Scope [main] 

Uplifting [] best 76 combination reg byte x [ idx#11 idx#12 ] reg byte x [ idx#4 ] 
Uplifting [print] best 67 combination reg byte a [ print::p_x#2 ] 
Uplifting [Point] best 67 combination 
Uplifting [main] best 67 combination 

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Minimal struct - passing struct value parameter
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .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 p1_y = 4
    // [5] call print 
    // [9] phi from main to print [phi:main->print]
  print_from_main:
    // [9] phi (byte) idx#11 = (byte) 0 [phi:main->print#0] -- vbuxx=vbuc1 
    ldx #0
    // [9] phi (byte) print::p_x#2 = (byte) 1 [phi:main->print#1] -- vbuaa=vbuc1 
    lda #1
    jsr print
    // [6] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
    jmp b1
    // main::@1
  b1:
    // [7] call print 
    // [9] phi from main::@1 to print [phi:main::@1->print]
  print_from_b1:
    // [9] phi (byte) idx#11 = (byte) idx#12 [phi:main::@1->print#0] -- register_copy 
    // [9] phi (byte) print::p_x#2 = (byte) 2 [phi:main::@1->print#1] -- vbuaa=vbuc1 
    lda #2
    jsr print
    jmp breturn
    // main::@return
  breturn:
    // [8] return 
    rts
}
  // print
// print(byte register(A) p_x)
print: {
    // [10] *((const byte*) SCREEN#0 + (byte) idx#11) ← (byte) print::p_x#2 -- pbuc1_derefidx_vbuxx=vbuaa 
    sta SCREEN,x
    // [11] (byte) idx#4 ← ++ (byte) idx#11 -- vbuxx=_inc_vbuxx 
    inx
    // [12] *((const byte*) SCREEN#0 + (byte) idx#4) ← (const byte) main::p1_y#1 -- pbuc1_derefidx_vbuxx=vbuc2 
    lda #main.p1_y
    sta SCREEN,x
    // [13] (byte) idx#12 ← ++ (byte) idx#4 -- vbuxx=_inc_vbuxx 
    inx
    jmp breturn
    // print::@return
  breturn:
    // [14] return 
    rts
}
  // File Data

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp breturn
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:
Removing instruction b1_from_main:
Removing instruction print_from_b1:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction print_from_main:
Removing instruction b1:
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 bbegin:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(byte) Point::x
(byte) Point::y
(byte*) SCREEN
(const byte*) SCREEN#0 SCREEN = (byte*) 1024
(byte) idx
(byte) idx#11 reg byte x 3.0
(byte) idx#12 reg byte x 1.0
(byte) idx#4 reg byte x 3.0
(void()) main()
(label) main::@1
(label) main::@return
(byte) main::p1_x
(byte) main::p1_y
(const byte) main::p1_y#1 p1_y = (byte) 4
(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#2 reg byte a 2.0
(byte) print::p_y

reg byte a [ print::p_x#2 ]
reg byte x [ idx#11 idx#12 ]
reg byte x [ idx#4 ]


FINAL ASSEMBLER
Score: 46

  // File Comments
// Minimal struct - passing struct value parameter
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  .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: {
    .label p1_y = 4
    // print(p1)
    // [5] call print 
    // [9] phi from main to print [phi:main->print]
    // [9] phi (byte) idx#11 = (byte) 0 [phi:main->print#0] -- vbuxx=vbuc1 
    ldx #0
    // [9] phi (byte) print::p_x#2 = (byte) 1 [phi:main->print#1] -- vbuaa=vbuc1 
    lda #1
    jsr print
    // [6] phi from main to main::@1 [phi:main->main::@1]
    // main::@1
    // print(p1)
    // [7] call print 
    // [9] phi from main::@1 to print [phi:main::@1->print]
    // [9] phi (byte) idx#11 = (byte) idx#12 [phi:main::@1->print#0] -- register_copy 
    // [9] phi (byte) print::p_x#2 = (byte) 2 [phi:main::@1->print#1] -- vbuaa=vbuc1 
    lda #2
    jsr print
    // main::@return
    // }
    // [8] return 
    rts
}
  // print
// print(byte register(A) p_x)
print: {
    // SCREEN[idx++] = p.x
    // [10] *((const byte*) SCREEN#0 + (byte) idx#11) ← (byte) print::p_x#2 -- pbuc1_derefidx_vbuxx=vbuaa 
    sta SCREEN,x
    // SCREEN[idx++] = p.x;
    // [11] (byte) idx#4 ← ++ (byte) idx#11 -- vbuxx=_inc_vbuxx 
    inx
    // SCREEN[idx++] = p.y
    // [12] *((const byte*) SCREEN#0 + (byte) idx#4) ← (const byte) main::p1_y#1 -- pbuc1_derefidx_vbuxx=vbuc2 
    lda #main.p1_y
    sta SCREEN,x
    // SCREEN[idx++] = p.y;
    // [13] (byte) idx#12 ← ++ (byte) idx#4 -- vbuxx=_inc_vbuxx 
    inx
    // print::@return
    // }
    // [14] return 
    rts
}
  // File Data

