Setting inferred volatile on symbol affected by address-of (struct Point*~) main::$0 ← & (struct Point) main::p
Created struct value member variable (byte) main::p_x
Created struct value member variable (byte) main::p_y
Converted struct value to member variables (struct Point) main::p
Adding struct value list initializer (byte) main::p_x ← (number) 2
Adding struct value list initializer (byte) main::p_y ← (number) 3
Rewriting struct pointer member access *((struct Point*) main::q).x
Rewriting struct pointer member access *((struct Point*) main::q).y
Rewriting struct pointer member access *((struct Point*) set::ptr).x
Rewriting struct pointer member access *((struct Point*) set::ptr).y
Culled Empty Block (label) @1
Adding versioned struct unwinding for (struct Point) main::p#0

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@2
main: scope:[main]  from @2
  (byte) main::p_x#0 ← (number) 2
  (byte) main::p_y#0 ← (number) 3
  (struct Point) main::p#0 ← struct-unwound {(byte) main::p_x#0, (byte) main::p_y#0}
  (struct Point*~) main::$0 ← & (struct Point) main::p#0
  (struct Point*) main::q#0 ← (struct Point*~) main::$0
  (struct Point*) set::ptr#0 ← (struct Point*) main::q#0
  call set 
  to:main::@1
main::@1: scope:[main]  from main
  (struct Point*) main::q#1 ← phi( main/(struct Point*) main::q#0 )
  (byte*) main::SCREEN#0 ← ((byte*)) (number) $400
  (byte*) main::$2 ← (byte*)(struct Point*) main::q#1 + (const byte) OFFSET_STRUCT_POINT_X
  *((byte*) main::SCREEN#0 + (number) 0) ← *((byte*) main::$2)
  (byte*) main::$3 ← (byte*)(struct Point*) main::q#1 + (const byte) OFFSET_STRUCT_POINT_Y
  *((byte*) main::SCREEN#0 + (number) 1) ← *((byte*) main::$3)
  to:main::@return
main::@return: scope:[main]  from main::@1
  return 
  to:@return
set: scope:[set]  from main
  (struct Point*) set::ptr#1 ← phi( main/(struct Point*) set::ptr#0 )
  (byte*) set::$0 ← (byte*)(struct Point*) set::ptr#1 + (const byte) OFFSET_STRUCT_POINT_X
  *((byte*) set::$0) ← (number) 4
  (byte*) set::$1 ← (byte*)(struct Point*) set::ptr#1 + (const byte) OFFSET_STRUCT_POINT_Y
  *((byte*) set::$1) ← (number) 5
  to:set::@return
set::@return: scope:[set]  from set
  return 
  to:@return
@2: scope:[]  from @begin
  call main 
  to:@3
@3: scope:[]  from @2
  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
(void()) main()
(struct Point*~) main::$0
(byte*) main::$2
(byte*) main::$3
(label) main::@1
(label) main::@return
(byte*) main::SCREEN
(byte*) main::SCREEN#0
(struct Point) main::p
(struct Point) main::p#0
(byte) main::p_x
(byte) main::p_x#0
(byte) main::p_y
(byte) main::p_y#0
(struct Point*) main::q
(struct Point*) main::q#0
(struct Point*) main::q#1
(void()) set((struct Point*) set::ptr)
(byte*) set::$0
(byte*) set::$1
(label) set::@return
(struct Point*) set::ptr
(struct Point*) set::ptr#0
(struct Point*) set::ptr#1

Adding number conversion cast (unumber) 2 in (byte) main::p_x#0 ← (number) 2
Adding number conversion cast (unumber) 3 in (byte) main::p_y#0 ← (number) 3
Adding number conversion cast (unumber) 0 in *((byte*) main::SCREEN#0 + (number) 0) ← *((byte*) main::$2)
Adding number conversion cast (unumber) 1 in *((byte*) main::SCREEN#0 + (number) 1) ← *((byte*) main::$3)
Adding number conversion cast (unumber) 4 in *((byte*) set::$0) ← (number) 4
Adding number conversion cast (unumber) 5 in *((byte*) set::$1) ← (number) 5
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast (byte) main::p_x#0 ← (unumber)(number) 2
Inlining cast (byte) main::p_y#0 ← (unumber)(number) 3
Inlining cast (byte*) main::SCREEN#0 ← (byte*)(number) $400
Inlining cast *((byte*) set::$0) ← (unumber)(number) 4
Inlining cast *((byte*) set::$1) ← (unumber)(number) 5
Successful SSA optimization Pass2InlineCast
Simplifying constant integer cast 2
Simplifying constant integer cast 3
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast 0
Simplifying constant integer cast 1
Simplifying constant integer cast 4
Simplifying constant integer cast 5
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 2
Finalized unsigned number type (byte) 3
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 4
Finalized unsigned number type (byte) 5
Successful SSA optimization PassNFinalizeNumberTypeConversions
Alias (struct Point*) main::q#0 = (struct Point*~) main::$0 (struct Point*) main::q#1 
Successful SSA optimization Pass2AliasElimination
Identical Phi Values (struct Point*) set::ptr#1 (struct Point*) set::ptr#0
Successful SSA optimization Pass2IdenticalPhiElimination
Rewriting struct address-of to first member [3] (struct Point*) main::q#0 ← (struct Point*)&(byte) main::p_x#0
Successful SSA optimization PassNStructAddressOfRewriting
Constant right-side identified [3] (struct Point*) main::q#0 ← (struct Point*)&(byte) main::p_x#0
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const struct Point*) main::q#0 = (struct Point*)&main::p_x#0
Constant (const byte*) main::SCREEN#0 = (byte*) 1024
Successful SSA optimization Pass2ConstantIdentification
Constant (const struct Point*) set::ptr#0 = main::q#0
Successful SSA optimization Pass2ConstantIdentification
Constant value identified (byte*)main::q#0 in [9] (byte*) main::$2 ← (byte*)(const struct Point*) main::q#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)main::q#0 in [11] (byte*) main::$3 ← (byte*)(const struct Point*) main::q#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant value identified (byte*)set::ptr#0 in [15] (byte*) set::$0 ← (byte*)(const struct Point*) set::ptr#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)set::ptr#0 in [17] (byte*) set::$1 ← (byte*)(const struct Point*) set::ptr#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantValues
Converting *(pointer+n) to pointer[n] [10] *((const byte*) main::SCREEN#0 + (byte) 0) ← *((byte*) main::$2)  -- *((byte*)main::q#0 + OFFSET_STRUCT_POINT_X)
Converting *(pointer+n) to pointer[n] [12] *((const byte*) main::SCREEN#0 + (byte) 1) ← *((byte*) main::$3)  -- *((byte*)main::q#0 + OFFSET_STRUCT_POINT_Y)
Converting *(pointer+n) to pointer[n] [16] *((byte*) set::$0) ← (byte) 4  -- *((byte*)set::ptr#0 + OFFSET_STRUCT_POINT_X)
Converting *(pointer+n) to pointer[n] [18] *((byte*) set::$1) ← (byte) 5  -- *((byte*)set::ptr#0 + OFFSET_STRUCT_POINT_Y)
Successful SSA optimization Pass2InlineDerefIdx
Simplifying expression containing zero (byte*)main::q#0 in [9] (byte*) main::$2 ← (byte*)(const struct Point*) main::q#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero (byte*)main::q#0 in [10] *((const byte*) main::SCREEN#0 + (byte) 0) ← *((byte*)(const struct Point*) main::q#0 + (const byte) OFFSET_STRUCT_POINT_X)
Simplifying expression containing zero main::SCREEN#0 in [10] *((const byte*) main::SCREEN#0 + (byte) 0) ← *((byte*)(const struct Point*) main::q#0)
Simplifying expression containing zero (byte*)set::ptr#0 in [15] (byte*) set::$0 ← (byte*)(const struct Point*) set::ptr#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero (byte*)set::ptr#0 in [16] *((byte*)(const struct Point*) set::ptr#0 + (const byte) OFFSET_STRUCT_POINT_X) ← (byte) 4
Successful SSA optimization PassNSimplifyExpressionWithZero
Eliminating unused variable (struct Point) main::p#0 and assignment [2] (struct Point) main::p#0 ← struct-unwound {(byte) main::p_x#0, (byte) main::p_y#0}
Eliminating unused variable (byte*) main::$2 and assignment [4] (byte*) main::$2 ← (byte*)(const struct Point*) main::q#0
Eliminating unused variable (byte*) main::$3 and assignment [6] (byte*) main::$3 ← (byte*)(const struct Point*) main::q#0 + (const byte) OFFSET_STRUCT_POINT_Y
Eliminating unused variable (byte*) set::$0 and assignment [9] (byte*) set::$0 ← (byte*)(const struct Point*) set::ptr#0
Eliminating unused variable (byte*) set::$1 and assignment [11] (byte*) set::$1 ← (byte*)(const struct Point*) set::ptr#0 + (const byte) OFFSET_STRUCT_POINT_Y
Eliminating unused constant (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNEliminateUnusedVars
Constant inlined set::ptr#0 = (const struct Point*) main::q#0
Successful SSA optimization Pass2ConstantInlining
Consolidated array index constant in *((byte*)main::q#0+OFFSET_STRUCT_POINT_Y)
Consolidated array index constant in *(main::SCREEN#0+1)
Consolidated array index constant in *((byte*)main::q#0+OFFSET_STRUCT_POINT_Y)
Successful SSA optimization Pass2ConstantAdditionElimination
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 set:7 

Created 0 initial phi equivalence classes
Coalesced down to 0 phi equivalence classes
Culled Empty Block (label) @3
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

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) main::p_x#0 ← (byte) 2
  [5] (byte) main::p_y#0 ← (byte) 3
  [6] call set 
  to:main::@1
main::@1: scope:[main]  from main
  [7] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point*) main::q#0)
  [8] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y)
  to:main::@return
main::@return: scope:[main]  from main::@1
  [9] return 
  to:@return
set: scope:[set]  from main
  [10] *((byte*)(const struct Point*) main::q#0) ← (byte) 4
  [11] *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 5
  to:set::@return
set::@return: scope:[set]  from set
  [12] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(byte) Point::x
(byte) Point::y
(void()) main()
(byte*) main::SCREEN
(struct Point) main::p
(byte) main::p_x
(byte) main::p_x#0 20.0
(byte) main::p_y
(byte) main::p_y#0 20.0
(struct Point*) main::q
(void()) set((struct Point*) set::ptr)
(struct Point*) set::ptr

Initial phi equivalence classes
Complete equivalence classes
[ main::p_x#0 ]
[ main::p_y#0 ]
Allocated zp ZP_BYTE:2 [ main::p_x#0 ]
Allocated zp ZP_BYTE:3 [ main::p_y#0 ]

INITIAL ASM
Target platform is c64basic
  // File Comments
// Minimal struct -  using address-of and passing it to a function
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .const OFFSET_STRUCT_POINT_Y = 1
  // @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 q = p_x
    .label SCREEN = $400
    .label p_x = 2
    .label p_y = 3
    // [4] (byte) main::p_x#0 ← (byte) 2 -- vbuz1=vbuc1 
    lda #2
    sta.z p_x
    // [5] (byte) main::p_y#0 ← (byte) 3 -- vbuz1=vbuc1 
    lda #3
    sta.z p_y
    // [6] call set 
    jsr set
    jmp b1
    // main::@1
  b1:
    // [7] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point*) main::q#0) -- _deref_pbuc1=_deref_pbuc2 
    lda q
    sta SCREEN
    // [8] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2 
    lda q+OFFSET_STRUCT_POINT_Y
    sta SCREEN+1
    jmp breturn
    // main::@return
  breturn:
    // [9] return 
    rts
}
  // set
set: {
    // [10] *((byte*)(const struct Point*) main::q#0) ← (byte) 4 -- _deref_pbuc1=vbuc2 
    lda #4
    sta main.q
    // [11] *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 5 -- _deref_pbuc1=vbuc2 
    lda #5
    sta main.q+OFFSET_STRUCT_POINT_Y
    jmp breturn
    // set::@return
  breturn:
    // [12] return 
    rts
}
  // File Data

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [4] (byte) main::p_x#0 ← (byte) 2 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [5] (byte) main::p_y#0 ← (byte) 3 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [7] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point*) main::q#0) [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [8] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [10] *((byte*)(const struct Point*) main::q#0) ← (byte) 4 [ ] ( main:2::set:6 [ ] ) always clobbers reg byte a 
Statement [11] *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 5 [ ] ( main:2::set:6 [ ] ) always clobbers reg byte a 
Potential registers zp ZP_BYTE:2 [ main::p_x#0 ] : zp ZP_BYTE:2 , 
Potential registers zp ZP_BYTE:3 [ main::p_y#0 ] : zp ZP_BYTE:3 , 

REGISTER UPLIFT SCOPES
Uplift Scope [main] 20: zp ZP_BYTE:2 [ main::p_x#0 ] 20: zp ZP_BYTE:3 [ main::p_y#0 ] 
Uplift Scope [Point] 
Uplift Scope [set] 
Uplift Scope [] 

Uplifting [main] best 77 combination zp ZP_BYTE:2 [ main::p_x#0 ] zp ZP_BYTE:3 [ main::p_y#0 ] 
Uplifting [Point] best 77 combination 
Uplifting [set] best 77 combination 
Uplifting [] best 77 combination 
Attempting to uplift remaining variables inzp ZP_BYTE:2 [ main::p_x#0 ]
Uplifting [main] best 77 combination zp ZP_BYTE:2 [ main::p_x#0 ] 
Attempting to uplift remaining variables inzp ZP_BYTE:3 [ main::p_y#0 ]
Uplifting [main] best 77 combination zp ZP_BYTE:3 [ main::p_y#0 ] 

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Minimal struct -  using address-of and passing it to a function
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .const OFFSET_STRUCT_POINT_Y = 1
  // @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 q = p_x
    .label SCREEN = $400
    .label p_x = 2
    .label p_y = 3
    // [4] (byte) main::p_x#0 ← (byte) 2 -- vbuz1=vbuc1 
    lda #2
    sta.z p_x
    // [5] (byte) main::p_y#0 ← (byte) 3 -- vbuz1=vbuc1 
    lda #3
    sta.z p_y
    // [6] call set 
    jsr set
    jmp b1
    // main::@1
  b1:
    // [7] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point*) main::q#0) -- _deref_pbuc1=_deref_pbuc2 
    lda q
    sta SCREEN
    // [8] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2 
    lda q+OFFSET_STRUCT_POINT_Y
    sta SCREEN+1
    jmp breturn
    // main::@return
  breturn:
    // [9] return 
    rts
}
  // set
set: {
    // [10] *((byte*)(const struct Point*) main::q#0) ← (byte) 4 -- _deref_pbuc1=vbuc2 
    lda #4
    sta main.q
    // [11] *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 5 -- _deref_pbuc1=vbuc2 
    lda #5
    sta main.q+OFFSET_STRUCT_POINT_Y
    jmp breturn
    // set::@return
  breturn:
    // [12] 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 bend_from_b1:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
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
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(void()) main()
(label) main::@1
(label) main::@return
(byte*) main::SCREEN
(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
(struct Point) main::p
(byte) main::p_x
(byte) main::p_x#0 p_x zp ZP_BYTE:2 20.0
(byte) main::p_y
(byte) main::p_y#0 p_y zp ZP_BYTE:3 20.0
(struct Point*) main::q
(const struct Point*) main::q#0 q = (struct Point*)&(byte) main::p_x#0
(void()) set((struct Point*) set::ptr)
(label) set::@return
(struct Point*) set::ptr

zp ZP_BYTE:2 [ main::p_x#0 ]
zp ZP_BYTE:3 [ main::p_y#0 ]


FINAL ASSEMBLER
Score: 56

  // File Comments
// Minimal struct -  using address-of and passing it to a function
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  .const OFFSET_STRUCT_POINT_Y = 1
  // @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: {
    .label q = p_x
    .label SCREEN = $400
    .label p_x = 2
    .label p_y = 3
    // p = { 2, 3 }
    // [4] (byte) main::p_x#0 ← (byte) 2 -- vbuz1=vbuc1 
    lda #2
    sta.z p_x
    // [5] (byte) main::p_y#0 ← (byte) 3 -- vbuz1=vbuc1 
    lda #3
    sta.z p_y
    // set(q)
    // [6] call set 
    jsr set
    // main::@1
    // SCREEN[0] = q->x
    // [7] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point*) main::q#0) -- _deref_pbuc1=_deref_pbuc2 
    lda q
    sta SCREEN
    // SCREEN[1] = q->y
    // [8] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2 
    lda q+OFFSET_STRUCT_POINT_Y
    sta SCREEN+1
    // main::@return
    // }
    // [9] return 
    rts
}
  // set
set: {
    // ptr->x = 4
    // [10] *((byte*)(const struct Point*) main::q#0) ← (byte) 4 -- _deref_pbuc1=vbuc2 
    lda #4
    sta main.q
    // ptr->y = 5
    // [11] *((byte*)(const struct Point*) main::q#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 5 -- _deref_pbuc1=vbuc2 
    lda #5
    sta main.q+OFFSET_STRUCT_POINT_Y
    // set::@return
    // }
    // [12] return 
    rts
}
  // File Data

