kickc/src/test/ref/varmodel-ma_mem-3.log

Culled Empty Block (label) @1
Culled Empty Block (label) model_ma_mem::@2
Culled Empty Block (label) @2
Culled Empty Block (label) model_ssa_zp::@2

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

(void()) main()
main: scope:[main]  from @3
  call model_ma_mem 
  to:main::@1
main::@1: scope:[main]  from main
  call model_ssa_zp 
  to:main::@2
main::@2: scope:[main]  from main::@1
  to:main::@return
main::@return: scope:[main]  from main::@2
  return 
  to:@return

(void()) model_ma_mem()
model_ma_mem: scope:[model_ma_mem]  from main
  (byte*) model_ma_mem::screen ← (byte*)(number) $400
  (byte) model_ma_mem::i ← (byte) 0
  to:model_ma_mem::@1
model_ma_mem::@1: scope:[model_ma_mem]  from model_ma_mem model_ma_mem::@1
  *((byte*) model_ma_mem::screen) ← (byte) 'a'
  (byte*) model_ma_mem::screen ← ++ (byte*) model_ma_mem::screen
  (byte) model_ma_mem::i ← (byte) model_ma_mem::i + rangenext(0,5)
  (bool~) model_ma_mem::$0 ← (byte) model_ma_mem::i != rangelast(0,5)
  if((bool~) model_ma_mem::$0) goto model_ma_mem::@1
  to:model_ma_mem::@return
model_ma_mem::@return: scope:[model_ma_mem]  from model_ma_mem::@1
  return 
  to:@return

(void()) model_ssa_zp()
model_ssa_zp: scope:[model_ssa_zp]  from main::@1
  (byte*) model_ssa_zp::screen#0 ← (byte*)(number) $428
  (byte) model_ssa_zp::i#0 ← (byte) 0
  to:model_ssa_zp::@1
model_ssa_zp::@1: scope:[model_ssa_zp]  from model_ssa_zp model_ssa_zp::@1
  (byte) model_ssa_zp::i#2 ← phi( model_ssa_zp/(byte) model_ssa_zp::i#0 model_ssa_zp::@1/(byte) model_ssa_zp::i#1 )
  (byte*) model_ssa_zp::screen#2 ← phi( model_ssa_zp/(byte*) model_ssa_zp::screen#0 model_ssa_zp::@1/(byte*) model_ssa_zp::screen#1 )
  *((byte*) model_ssa_zp::screen#2) ← (byte) 'b'
  (byte*) model_ssa_zp::screen#1 ← ++ (byte*) model_ssa_zp::screen#2
  (byte) model_ssa_zp::i#1 ← (byte) model_ssa_zp::i#2 + rangenext(0,5)
  (bool~) model_ssa_zp::$0 ← (byte) model_ssa_zp::i#1 != rangelast(0,5)
  if((bool~) model_ssa_zp::$0) goto model_ssa_zp::@1
  to:model_ssa_zp::@return
model_ssa_zp::@return: scope:[model_ssa_zp]  from model_ssa_zp::@1
  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
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@return
(void()) model_ma_mem()
(bool~) model_ma_mem::$0
(label) model_ma_mem::@1
(label) model_ma_mem::@return
(byte) model_ma_mem::i loadstore
(byte*) model_ma_mem::screen loadstore
(void()) model_ssa_zp()
(bool~) model_ssa_zp::$0
(label) model_ssa_zp::@1
(label) model_ssa_zp::@return
(byte) model_ssa_zp::i
(byte) model_ssa_zp::i#0
(byte) model_ssa_zp::i#1
(byte) model_ssa_zp::i#2
(byte*) model_ssa_zp::screen
(byte*) model_ssa_zp::screen#0
(byte*) model_ssa_zp::screen#1
(byte*) model_ssa_zp::screen#2

Simplifying constant pointer cast (byte*) 1024
Simplifying constant pointer cast (byte*) 1064
Successful SSA optimization PassNCastSimplification
Simple Condition (bool~) model_ma_mem::$0 [9] if((byte) model_ma_mem::i!=rangelast(0,5)) goto model_ma_mem::@1
Simple Condition (bool~) model_ssa_zp::$0 [18] if((byte) model_ssa_zp::i#1!=rangelast(0,5)) goto model_ssa_zp::@1
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const byte*) model_ssa_zp::screen#0 = (byte*) 1064
Constant (const byte) model_ssa_zp::i#0 = 0
Successful SSA optimization Pass2ConstantIdentification
Resolved ranged next value [7] model_ma_mem::i ← ++ model_ma_mem::i to ++
Resolved ranged comparison value [9] if(model_ma_mem::i!=rangelast(0,5)) goto model_ma_mem::@1 to (number) 6
Resolved ranged next value [16] model_ssa_zp::i#1 ← ++ model_ssa_zp::i#2 to ++
Resolved ranged comparison value [18] if(model_ssa_zp::i#1!=rangelast(0,5)) goto model_ssa_zp::@1 to (number) 6
Adding number conversion cast (unumber) 6 in if((byte) model_ma_mem::i!=(number) 6) goto model_ma_mem::@1
Adding number conversion cast (unumber) 6 in if((byte) model_ssa_zp::i#1!=(number) 6) goto model_ssa_zp::@1
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant integer cast 6
Simplifying constant integer cast 6
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 6
Finalized unsigned number type (byte) 6
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inlining constant with var siblings (const byte*) model_ssa_zp::screen#0
Inlining constant with var siblings (const byte) model_ssa_zp::i#0
Constant inlined model_ssa_zp::screen#0 = (byte*) 1064
Constant inlined model_ssa_zp::i#0 = (byte) 0
Successful SSA optimization Pass2ConstantInlining
Added new block during phi lifting model_ssa_zp::@3(between model_ssa_zp::@1 and model_ssa_zp::@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::@1
Adding NOP phi() at start of main::@2
Adding NOP phi() at start of model_ssa_zp
CALL GRAPH
Calls in [] to main:2 
Calls in [main] to model_ma_mem:6 model_ssa_zp:8 

Created 2 initial phi equivalence classes
Coalesced [18] model_ssa_zp::screen#3 ← model_ssa_zp::screen#1
Coalesced [19] model_ssa_zp::i#3 ← model_ssa_zp::i#1
Coalesced down to 2 phi equivalence classes
Culled Empty Block (label) @4
Culled Empty Block (label) main::@2
Culled Empty Block (label) model_ssa_zp::@3
Renumbering block @3 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
Adding NOP phi() at start of model_ssa_zp

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()
  [5] call model_ma_mem 
  to:main::@1
main::@1: scope:[main]  from main
  [6] phi()
  [7] call model_ssa_zp 
  to:main::@return
main::@return: scope:[main]  from main::@1
  [8] return 
  to:@return

(void()) model_ssa_zp()
model_ssa_zp: scope:[model_ssa_zp]  from main::@1
  [9] phi()
  to:model_ssa_zp::@1
model_ssa_zp::@1: scope:[model_ssa_zp]  from model_ssa_zp model_ssa_zp::@1
  [10] (byte) model_ssa_zp::i#2 ← phi( model_ssa_zp/(byte) 0 model_ssa_zp::@1/(byte) model_ssa_zp::i#1 )
  [10] (byte*) model_ssa_zp::screen#2 ← phi( model_ssa_zp/(byte*) 1064 model_ssa_zp::@1/(byte*) model_ssa_zp::screen#1 )
  [11] *((byte*) model_ssa_zp::screen#2) ← (byte) 'b'
  [12] (byte*) model_ssa_zp::screen#1 ← ++ (byte*) model_ssa_zp::screen#2
  [13] (byte) model_ssa_zp::i#1 ← ++ (byte) model_ssa_zp::i#2
  [14] if((byte) model_ssa_zp::i#1!=(byte) 6) goto model_ssa_zp::@1
  to:model_ssa_zp::@return
model_ssa_zp::@return: scope:[model_ssa_zp]  from model_ssa_zp::@1
  [15] return 
  to:@return

(void()) model_ma_mem()
model_ma_mem: scope:[model_ma_mem]  from main
  [16] (byte*) model_ma_mem::screen ← (byte*) 1024
  [17] (byte) model_ma_mem::i ← (byte) 0
  to:model_ma_mem::@1
model_ma_mem::@1: scope:[model_ma_mem]  from model_ma_mem model_ma_mem::@1
  [18] *((byte*) model_ma_mem::screen) ← (byte) 'a'
  [19] (byte*) model_ma_mem::screen ← ++ (byte*) model_ma_mem::screen
  [20] (byte) model_ma_mem::i ← ++ (byte) model_ma_mem::i
  [21] if((byte) model_ma_mem::i!=(byte) 6) goto model_ma_mem::@1
  to:model_ma_mem::@return
model_ma_mem::@return: scope:[model_ma_mem]  from model_ma_mem::@1
  [22] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(void()) main()
(void()) model_ma_mem()
(byte) model_ma_mem::i loadstore 7.000000000000001
(byte*) model_ma_mem::screen loadstore 5.833333333333333
(void()) model_ssa_zp()
(byte) model_ssa_zp::i
(byte) model_ssa_zp::i#1 16.5
(byte) model_ssa_zp::i#2 7.333333333333333
(byte*) model_ssa_zp::screen
(byte*) model_ssa_zp::screen#1 7.333333333333333
(byte*) model_ssa_zp::screen#2 16.5

Initial phi equivalence classes
[ model_ssa_zp::screen#2 model_ssa_zp::screen#1 ]
[ model_ssa_zp::i#2 model_ssa_zp::i#1 ]
Added variable model_ma_mem::screen to live range equivalence class [ model_ma_mem::screen ]
Added variable model_ma_mem::i to live range equivalence class [ model_ma_mem::i ]
Complete equivalence classes
[ model_ssa_zp::screen#2 model_ssa_zp::screen#1 ]
[ model_ssa_zp::i#2 model_ssa_zp::i#1 ]
[ model_ma_mem::screen ]
[ model_ma_mem::i ]
Allocated zp[2]:2 [ model_ssa_zp::screen#2 model_ssa_zp::screen#1 ]
Allocated zp[1]:4 [ model_ssa_zp::i#2 model_ssa_zp::i#1 ]
Allocated mem[2] [ model_ma_mem::screen ]
Allocated mem[1] [ model_ma_mem::i ]

INITIAL ASM
Target platform is c64basic / MOS6502X
  // File Comments
// Test two different memory models
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(__bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  // @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] call model_ma_mem 
    jsr model_ma_mem
    // [6] phi from main to main::@1 [phi:main->main::@1]
  __b1_from_main:
    jmp __b1
    // main::@1
  __b1:
    // [7] call model_ssa_zp 
    // [9] phi from main::@1 to model_ssa_zp [phi:main::@1->model_ssa_zp]
  model_ssa_zp_from___b1:
    jsr model_ssa_zp
    jmp __breturn
    // main::@return
  __breturn:
    // [8] return 
    rts
}
  // model_ssa_zp
model_ssa_zp: {
    // A local pointer
    .label screen = 2
    .label i = 4
    // [10] phi from model_ssa_zp to model_ssa_zp::@1 [phi:model_ssa_zp->model_ssa_zp::@1]
  __b1_from_model_ssa_zp:
    // [10] phi (byte) model_ssa_zp::i#2 = (byte) 0 [phi:model_ssa_zp->model_ssa_zp::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta.z i
    // [10] phi (byte*) model_ssa_zp::screen#2 = (byte*) 1064 [phi:model_ssa_zp->model_ssa_zp::@1#1] -- pbuz1=pbuc1 
    lda #<$428
    sta.z screen
    lda #>$428
    sta.z screen+1
    jmp __b1
  // A local counter
    // [10] phi from model_ssa_zp::@1 to model_ssa_zp::@1 [phi:model_ssa_zp::@1->model_ssa_zp::@1]
  __b1_from___b1:
    // [10] phi (byte) model_ssa_zp::i#2 = (byte) model_ssa_zp::i#1 [phi:model_ssa_zp::@1->model_ssa_zp::@1#0] -- register_copy 
    // [10] phi (byte*) model_ssa_zp::screen#2 = (byte*) model_ssa_zp::screen#1 [phi:model_ssa_zp::@1->model_ssa_zp::@1#1] -- register_copy 
    jmp __b1
    // model_ssa_zp::@1
  __b1:
    // [11] *((byte*) model_ssa_zp::screen#2) ← (byte) 'b' -- _deref_pbuz1=vbuc1 
    lda #'b'
    ldy #0
    sta (screen),y
    // [12] (byte*) model_ssa_zp::screen#1 ← ++ (byte*) model_ssa_zp::screen#2 -- pbuz1=_inc_pbuz1 
    inc.z screen
    bne !+
    inc.z screen+1
  !:
    // [13] (byte) model_ssa_zp::i#1 ← ++ (byte) model_ssa_zp::i#2 -- vbuz1=_inc_vbuz1 
    inc.z i
    // [14] if((byte) model_ssa_zp::i#1!=(byte) 6) goto model_ssa_zp::@1 -- vbuz1_neq_vbuc1_then_la1 
    lda #6
    cmp.z i
    bne __b1_from___b1
    jmp __breturn
    // model_ssa_zp::@return
  __breturn:
    // [15] return 
    rts
}
  // model_ma_mem
model_ma_mem: {
    // [16] (byte*) model_ma_mem::screen ← (byte*) 1024 -- pbum1=pbuc1 
    // A local pointer
    lda #<$400
    sta screen
    lda #>$400
    sta screen+1
    // [17] (byte) model_ma_mem::i ← (byte) 0 -- vbum1=vbuc1 
    lda #0
    sta i
    jmp __b1
  // A local counter
    // model_ma_mem::@1
  __b1:
    // [18] *((byte*) model_ma_mem::screen) ← (byte) 'a' -- _deref_pbum1=vbuc1 
    lda #'a'
    ldy screen
    sty.z $fe
    ldy screen+1
    sty.z $ff
    ldy #0
    sta ($fe),y
    // [19] (byte*) model_ma_mem::screen ← ++ (byte*) model_ma_mem::screen -- pbum1=_inc_pbum1 
    inc screen
    bne !+
    inc screen+1
  !:
    // [20] (byte) model_ma_mem::i ← ++ (byte) model_ma_mem::i -- vbum1=_inc_vbum1 
    inc i
    // [21] if((byte) model_ma_mem::i!=(byte) 6) goto model_ma_mem::@1 -- vbum1_neq_vbuc1_then_la1 
    lda #6
    cmp i
    bne __b1
    jmp __breturn
    // model_ma_mem::@return
  __breturn:
    // [22] return 
    rts
    screen: .word 0
    i: .byte 0
}
  // File Data

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [11] *((byte*) model_ssa_zp::screen#2) ← (byte) 'b' [ model_ssa_zp::screen#2 model_ssa_zp::i#2 ] ( main:2::model_ssa_zp:7 [ model_ssa_zp::screen#2 model_ssa_zp::i#2 ] ) always clobbers reg byte a reg byte y 
Removing always clobbered register reg byte a as potential for zp[1]:4 [ model_ssa_zp::i#2 model_ssa_zp::i#1 ]
Removing always clobbered register reg byte y as potential for zp[1]:4 [ model_ssa_zp::i#2 model_ssa_zp::i#1 ]
Statement [16] (byte*) model_ma_mem::screen ← (byte*) 1024 [ model_ma_mem::screen ] ( main:2::model_ma_mem:5 [ model_ma_mem::screen ] ) always clobbers reg byte a 
Statement [17] (byte) model_ma_mem::i ← (byte) 0 [ model_ma_mem::screen model_ma_mem::i ] ( main:2::model_ma_mem:5 [ model_ma_mem::screen model_ma_mem::i ] ) always clobbers reg byte a 
Statement [18] *((byte*) model_ma_mem::screen) ← (byte) 'a' [ model_ma_mem::screen model_ma_mem::i ] ( main:2::model_ma_mem:5 [ model_ma_mem::screen model_ma_mem::i ] ) always clobbers reg byte a reg byte y 
Statement [21] if((byte) model_ma_mem::i!=(byte) 6) goto model_ma_mem::@1 [ model_ma_mem::screen model_ma_mem::i ] ( main:2::model_ma_mem:5 [ model_ma_mem::screen model_ma_mem::i ] ) always clobbers reg byte a 
Statement [11] *((byte*) model_ssa_zp::screen#2) ← (byte) 'b' [ model_ssa_zp::screen#2 model_ssa_zp::i#2 ] ( main:2::model_ssa_zp:7 [ model_ssa_zp::screen#2 model_ssa_zp::i#2 ] ) always clobbers reg byte a reg byte y 
Statement [16] (byte*) model_ma_mem::screen ← (byte*) 1024 [ model_ma_mem::screen ] ( main:2::model_ma_mem:5 [ model_ma_mem::screen ] ) always clobbers reg byte a 
Statement [17] (byte) model_ma_mem::i ← (byte) 0 [ model_ma_mem::screen model_ma_mem::i ] ( main:2::model_ma_mem:5 [ model_ma_mem::screen model_ma_mem::i ] ) always clobbers reg byte a 
Statement [18] *((byte*) model_ma_mem::screen) ← (byte) 'a' [ model_ma_mem::screen model_ma_mem::i ] ( main:2::model_ma_mem:5 [ model_ma_mem::screen model_ma_mem::i ] ) always clobbers reg byte a reg byte y 
Statement [21] if((byte) model_ma_mem::i!=(byte) 6) goto model_ma_mem::@1 [ model_ma_mem::screen model_ma_mem::i ] ( main:2::model_ma_mem:5 [ model_ma_mem::screen model_ma_mem::i ] ) always clobbers reg byte a 
Potential registers zp[2]:2 [ model_ssa_zp::screen#2 model_ssa_zp::screen#1 ] : zp[2]:2 , 
Potential registers zp[1]:4 [ model_ssa_zp::i#2 model_ssa_zp::i#1 ] : zp[1]:4 , reg byte x , 
Potential registers mem[2] [ model_ma_mem::screen ] : mem[2] , 
Potential registers mem[1] [ model_ma_mem::i ] : mem[1] , 

REGISTER UPLIFT SCOPES
Uplift Scope [model_ssa_zp] 23.83: zp[2]:2 [ model_ssa_zp::screen#2 model_ssa_zp::screen#1 ] 23.83: zp[1]:4 [ model_ssa_zp::i#2 model_ssa_zp::i#1 ] 
Uplift Scope [model_ma_mem] 7: mem[1] [ model_ma_mem::i ] 5.83: mem[2] [ model_ma_mem::screen ] 
Uplift Scope [main] 
Uplift Scope [] 

Uplifting [model_ssa_zp] best 1129 combination zp[2]:2 [ model_ssa_zp::screen#2 model_ssa_zp::screen#1 ] reg byte x [ model_ssa_zp::i#2 model_ssa_zp::i#1 ] 
Uplifting [model_ma_mem] best 1129 combination mem[1] [ model_ma_mem::i ] mem[2] [ model_ma_mem::screen ] 
Uplifting [main] best 1129 combination 
Uplifting [] best 1129 combination 
Attempting to uplift remaining variables inmem[1] [ model_ma_mem::i ]
Uplifting [model_ma_mem] best 1129 combination mem[1] [ model_ma_mem::i ] 

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Test two different memory models
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(__bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  // @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] call model_ma_mem 
    jsr model_ma_mem
    // [6] phi from main to main::@1 [phi:main->main::@1]
  __b1_from_main:
    jmp __b1
    // main::@1
  __b1:
    // [7] call model_ssa_zp 
    // [9] phi from main::@1 to model_ssa_zp [phi:main::@1->model_ssa_zp]
  model_ssa_zp_from___b1:
    jsr model_ssa_zp
    jmp __breturn
    // main::@return
  __breturn:
    // [8] return 
    rts
}
  // model_ssa_zp
model_ssa_zp: {
    // A local pointer
    .label screen = 2
    // [10] phi from model_ssa_zp to model_ssa_zp::@1 [phi:model_ssa_zp->model_ssa_zp::@1]
  __b1_from_model_ssa_zp:
    // [10] phi (byte) model_ssa_zp::i#2 = (byte) 0 [phi:model_ssa_zp->model_ssa_zp::@1#0] -- vbuxx=vbuc1 
    ldx #0
    // [10] phi (byte*) model_ssa_zp::screen#2 = (byte*) 1064 [phi:model_ssa_zp->model_ssa_zp::@1#1] -- pbuz1=pbuc1 
    lda #<$428
    sta.z screen
    lda #>$428
    sta.z screen+1
    jmp __b1
  // A local counter
    // [10] phi from model_ssa_zp::@1 to model_ssa_zp::@1 [phi:model_ssa_zp::@1->model_ssa_zp::@1]
  __b1_from___b1:
    // [10] phi (byte) model_ssa_zp::i#2 = (byte) model_ssa_zp::i#1 [phi:model_ssa_zp::@1->model_ssa_zp::@1#0] -- register_copy 
    // [10] phi (byte*) model_ssa_zp::screen#2 = (byte*) model_ssa_zp::screen#1 [phi:model_ssa_zp::@1->model_ssa_zp::@1#1] -- register_copy 
    jmp __b1
    // model_ssa_zp::@1
  __b1:
    // [11] *((byte*) model_ssa_zp::screen#2) ← (byte) 'b' -- _deref_pbuz1=vbuc1 
    lda #'b'
    ldy #0
    sta (screen),y
    // [12] (byte*) model_ssa_zp::screen#1 ← ++ (byte*) model_ssa_zp::screen#2 -- pbuz1=_inc_pbuz1 
    inc.z screen
    bne !+
    inc.z screen+1
  !:
    // [13] (byte) model_ssa_zp::i#1 ← ++ (byte) model_ssa_zp::i#2 -- vbuxx=_inc_vbuxx 
    inx
    // [14] if((byte) model_ssa_zp::i#1!=(byte) 6) goto model_ssa_zp::@1 -- vbuxx_neq_vbuc1_then_la1 
    cpx #6
    bne __b1_from___b1
    jmp __breturn
    // model_ssa_zp::@return
  __breturn:
    // [15] return 
    rts
}
  // model_ma_mem
model_ma_mem: {
    // [16] (byte*) model_ma_mem::screen ← (byte*) 1024 -- pbum1=pbuc1 
    // A local pointer
    lda #<$400
    sta screen
    lda #>$400
    sta screen+1
    // [17] (byte) model_ma_mem::i ← (byte) 0 -- vbum1=vbuc1 
    lda #0
    sta i
    jmp __b1
  // A local counter
    // model_ma_mem::@1
  __b1:
    // [18] *((byte*) model_ma_mem::screen) ← (byte) 'a' -- _deref_pbum1=vbuc1 
    lda #'a'
    ldy screen
    sty.z $fe
    ldy screen+1
    sty.z $ff
    ldy #0
    sta ($fe),y
    // [19] (byte*) model_ma_mem::screen ← ++ (byte*) model_ma_mem::screen -- pbum1=_inc_pbum1 
    inc screen
    bne !+
    inc screen+1
  !:
    // [20] (byte) model_ma_mem::i ← ++ (byte) model_ma_mem::i -- vbum1=_inc_vbum1 
    inc i
    // [21] if((byte) model_ma_mem::i!=(byte) 6) goto model_ma_mem::@1 -- vbum1_neq_vbuc1_then_la1 
    lda #6
    cmp i
    bne __b1
    jmp __breturn
    // model_ma_mem::@return
  __breturn:
    // [22] return 
    rts
    screen: .word 0
    i: .byte 0
}
  // File Data

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp __b1
Removing instruction jmp __bend
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __b1
Removing instruction jmp __breturn
Succesful ASM optimization Pass5NextJumpElimination
Replacing label __bbegin with __b1
Replacing label __b1_from___b1 with __b1
Removing instruction __bbegin:
Removing instruction __b1_from___bbegin:
Removing instruction main_from___b1:
Removing instruction __bend_from___b1:
Removing instruction __b1_from_main:
Removing instruction model_ssa_zp_from___b1:
Removing instruction __b1_from___b1:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction __bend:
Removing instruction __b1:
Removing instruction __breturn:
Removing instruction __b1_from_model_ssa_zp:
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 __b1:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(void()) main()
(label) main::@1
(label) main::@return
(void()) model_ma_mem()
(label) model_ma_mem::@1
(label) model_ma_mem::@return
(byte) model_ma_mem::i loadstore mem[1] 7.000000000000001
(byte*) model_ma_mem::screen loadstore mem[2] 5.833333333333333
(void()) model_ssa_zp()
(label) model_ssa_zp::@1
(label) model_ssa_zp::@return
(byte) model_ssa_zp::i
(byte) model_ssa_zp::i#1 reg byte x 16.5
(byte) model_ssa_zp::i#2 reg byte x 7.333333333333333
(byte*) model_ssa_zp::screen
(byte*) model_ssa_zp::screen#1 screen zp[2]:2 7.333333333333333
(byte*) model_ssa_zp::screen#2 screen zp[2]:2 16.5

zp[2]:2 [ model_ssa_zp::screen#2 model_ssa_zp::screen#1 ]
reg byte x [ model_ssa_zp::i#2 model_ssa_zp::i#1 ]
mem[2] [ model_ma_mem::screen ]
mem[1] [ model_ma_mem::i ]


FINAL ASSEMBLER
Score: 988

  // File Comments
// Test two different memory models
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  // @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: {
    // model_ma_mem()
    // [5] call model_ma_mem 
    jsr model_ma_mem
    // [6] phi from main to main::@1 [phi:main->main::@1]
    // main::@1
    // model_ssa_zp()
    // [7] call model_ssa_zp 
    // [9] phi from main::@1 to model_ssa_zp [phi:main::@1->model_ssa_zp]
    jsr model_ssa_zp
    // main::@return
    // }
    // [8] return 
    rts
}
  // model_ssa_zp
model_ssa_zp: {
    // A local pointer
    .label screen = 2
    // [10] phi from model_ssa_zp to model_ssa_zp::@1 [phi:model_ssa_zp->model_ssa_zp::@1]
    // [10] phi (byte) model_ssa_zp::i#2 = (byte) 0 [phi:model_ssa_zp->model_ssa_zp::@1#0] -- vbuxx=vbuc1 
    ldx #0
    // [10] phi (byte*) model_ssa_zp::screen#2 = (byte*) 1064 [phi:model_ssa_zp->model_ssa_zp::@1#1] -- pbuz1=pbuc1 
    lda #<$428
    sta.z screen
    lda #>$428
    sta.z screen+1
  // A local counter
    // [10] phi from model_ssa_zp::@1 to model_ssa_zp::@1 [phi:model_ssa_zp::@1->model_ssa_zp::@1]
    // [10] phi (byte) model_ssa_zp::i#2 = (byte) model_ssa_zp::i#1 [phi:model_ssa_zp::@1->model_ssa_zp::@1#0] -- register_copy 
    // [10] phi (byte*) model_ssa_zp::screen#2 = (byte*) model_ssa_zp::screen#1 [phi:model_ssa_zp::@1->model_ssa_zp::@1#1] -- register_copy 
    // model_ssa_zp::@1
  __b1:
    // *(screen++) = 'b'
    // [11] *((byte*) model_ssa_zp::screen#2) ← (byte) 'b' -- _deref_pbuz1=vbuc1 
    lda #'b'
    ldy #0
    sta (screen),y
    // *(screen++) = 'b';
    // [12] (byte*) model_ssa_zp::screen#1 ← ++ (byte*) model_ssa_zp::screen#2 -- pbuz1=_inc_pbuz1 
    inc.z screen
    bne !+
    inc.z screen+1
  !:
    // for( char i: 0..5 )
    // [13] (byte) model_ssa_zp::i#1 ← ++ (byte) model_ssa_zp::i#2 -- vbuxx=_inc_vbuxx 
    inx
    // [14] if((byte) model_ssa_zp::i#1!=(byte) 6) goto model_ssa_zp::@1 -- vbuxx_neq_vbuc1_then_la1 
    cpx #6
    bne __b1
    // model_ssa_zp::@return
    // }
    // [15] return 
    rts
}
  // model_ma_mem
model_ma_mem: {
    // screen = 0x0400
    // [16] (byte*) model_ma_mem::screen ← (byte*) 1024 -- pbum1=pbuc1 
    // A local pointer
    lda #<$400
    sta screen
    lda #>$400
    sta screen+1
    // for( char i: 0..5 )
    // [17] (byte) model_ma_mem::i ← (byte) 0 -- vbum1=vbuc1 
    lda #0
    sta i
  // A local counter
    // model_ma_mem::@1
  __b1:
    // *(screen++) = 'a'
    // [18] *((byte*) model_ma_mem::screen) ← (byte) 'a' -- _deref_pbum1=vbuc1 
    lda #'a'
    ldy screen
    sty.z $fe
    ldy screen+1
    sty.z $ff
    ldy #0
    sta ($fe),y
    // *(screen++) = 'a';
    // [19] (byte*) model_ma_mem::screen ← ++ (byte*) model_ma_mem::screen -- pbum1=_inc_pbum1 
    inc screen
    bne !+
    inc screen+1
  !:
    // for( char i: 0..5 )
    // [20] (byte) model_ma_mem::i ← ++ (byte) model_ma_mem::i -- vbum1=_inc_vbum1 
    inc i
    // [21] if((byte) model_ma_mem::i!=(byte) 6) goto model_ma_mem::@1 -- vbum1_neq_vbuc1_then_la1 
    lda #6
    cmp i
    bne __b1
    // model_ma_mem::@return
    // }
    // [22] return 
    rts
    screen: .word 0
    i: .byte 0
}
  // File Data