Warning! Adding boolean cast to non-boolean condition *((byte[]) MESSAGE + (byte) main::i)
Culled Empty Block (label) main::@4
Culled Empty Block (label) main::@3
Culled Empty Block (label) main::@5
Culled Empty Block (label) main::@6
Culled Empty Block (label) @1

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  (byte[]) MESSAGE#0 ← (const string) $0
  (byte*) memA#0 ← ((byte*)) (number) $ff
  to:@2
main: scope:[main]  from @2
  (byte) main::i#0 ← (number) 0
  to:main::@1
main::@1: scope:[main]  from main main::@7
  (byte) main::i#2 ← phi( main/(byte) main::i#0 main::@7/(byte) main::i#1 )
  (bool~) main::$1 ← (number) 0 != *((byte[]) MESSAGE#0 + (byte) main::i#2)
  if((bool~) main::$1) goto main::@2
  to:main::@return
main::@2: scope:[main]  from main::@1
  (byte) main::i#3 ← phi( main::@1/(byte) main::i#2 )
  (byte) chrout::c#0 ← *((byte[]) MESSAGE#0 + (byte) main::i#3)
  call chrout 
  to:main::@7
main::@7: scope:[main]  from main::@2
  (byte) main::i#4 ← phi( main::@2/(byte) main::i#3 )
  (byte) main::i#1 ← ++ (byte) main::i#4
  to:main::@1
main::@return: scope:[main]  from main::@1
  return 
  to:@return
chrout: scope:[chrout]  from main::@2
  (byte) chrout::c#1 ← phi( main::@2/(byte) chrout::c#0 )
  *((byte*) memA#0) ← (byte) chrout::c#1
  asm { ldamemA jsr$ffd2  }
  to:chrout::@return
chrout::@return: scope:[chrout]  from chrout
  return 
  to:@return
@2: scope:[]  from @begin
  call main 
  to:@3
@3: scope:[]  from @2
  to:@end
@end: scope:[]  from @3

SYMBOL TABLE SSA
(const string) $0 = (string) "hello
world\"pm
(label) @2
(label) @3
(label) @begin
(label) @end
(byte[]) MESSAGE
(byte[]) MESSAGE#0
(void()) chrout((byte) chrout::c)
(label) chrout::@return
(byte) chrout::c
(byte) chrout::c#0
(byte) chrout::c#1
(void()) main()
(bool~) main::$1
(label) main::@1
(label) main::@2
(label) main::@7
(label) main::@return
(byte) main::i
(byte) main::i#0
(byte) main::i#1
(byte) main::i#2
(byte) main::i#3
(byte) main::i#4
(byte*) memA
(byte*) memA#0

Adding number conversion cast (unumber) 0 in (byte) main::i#0 ← (number) 0
Adding number conversion cast (unumber) 0 in (bool~) main::$1 ← (number) 0 != *((byte[]) MESSAGE#0 + (byte) main::i#2)
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast (byte*) memA#0 ← (byte*)(number) $ff
Inlining cast (byte) main::i#0 ← (unumber)(number) 0
Successful SSA optimization Pass2InlineCast
Simplifying constant pointer cast (byte*) 255
Simplifying constant integer cast 0
Simplifying constant integer cast 0
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 0
Successful SSA optimization PassNFinalizeNumberTypeConversions
Alias (byte) main::i#2 = (byte) main::i#3 (byte) main::i#4 
Successful SSA optimization Pass2AliasElimination
Identical Phi Values (byte) chrout::c#1 (byte) chrout::c#0
Successful SSA optimization Pass2IdenticalPhiElimination
Simple Condition (bool~) main::$1 [5] if((byte) 0!=*((byte[]) MESSAGE#0 + (byte) main::i#2)) goto main::@2
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const byte[]) MESSAGE#0 = $0
Constant (const byte*) memA#0 = (byte*) 255
Constant (const byte) main::i#0 = 0
Successful SSA optimization Pass2ConstantIdentification
Inlining constant with var siblings (const byte) main::i#0
Constant inlined $0 = (const byte[]) MESSAGE#0
Constant inlined main::i#0 = (byte) 0
Successful SSA optimization Pass2ConstantInlining
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
Adding NOP phi() at start of main
CALL GRAPH
Calls in [] to main:2 
Calls in [main] to chrout:10 

Created 1 initial phi equivalence classes
Coalesced [12] main::i#5 ← main::i#1
Coalesced down to 1 phi equivalence classes
Culled Empty Block (label) @3
Renumbering block @2 to @1
Renumbering block main::@7 to main::@3
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

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()
  to:main::@1
main::@1: scope:[main]  from main main::@3
  [5] (byte) main::i#2 ← phi( main/(byte) 0 main::@3/(byte) main::i#1 )
  [6] if((byte) 0!=*((const byte[]) MESSAGE#0 + (byte) main::i#2)) goto main::@2
  to:main::@return
main::@return: scope:[main]  from main::@1
  [7] return 
  to:@return
main::@2: scope:[main]  from main::@1
  [8] (byte) chrout::c#0 ← *((const byte[]) MESSAGE#0 + (byte) main::i#2)
  [9] call chrout 
  to:main::@3
main::@3: scope:[main]  from main::@2
  [10] (byte) main::i#1 ← ++ (byte) main::i#2
  to:main::@1
chrout: scope:[chrout]  from main::@2
  [11] *((const byte*) memA#0) ← (byte) chrout::c#0
  asm { ldamemA jsr$ffd2  }
  to:chrout::@return
chrout::@return: scope:[chrout]  from chrout
  [13] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(byte[]) MESSAGE
(void()) chrout((byte) chrout::c)
(byte) chrout::c
(byte) chrout::c#0 13.0
(void()) main()
(byte) main::i
(byte) main::i#1 22.0
(byte) main::i#2 11.0
(byte*) memA

Initial phi equivalence classes
[ main::i#2 main::i#1 ]
Added variable chrout::c#0 to zero page equivalence class [ chrout::c#0 ]
Complete equivalence classes
[ main::i#2 main::i#1 ]
[ chrout::c#0 ]
Allocated zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Allocated zp ZP_BYTE:3 [ chrout::c#0 ]

INITIAL ASM
Target platform is c64basic / MOS6502X
  // File Comments
// Test using some simple supported string escape characters in PETSCII
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .label memA = $ff
  // @begin
bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
  jmp b1
  // @1
b1:
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
main_from_b1:
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
  jmp bend
  // @end
bend:
  // main
main: {
    .label i = 2
    // [5] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
    // [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta.z i
    jmp b1
    // main::@1
  b1:
    // [6] if((byte) 0!=*((const byte[]) MESSAGE#0 + (byte) main::i#2)) goto main::@2 -- vbuc1_neq_pbuc2_derefidx_vbuz1_then_la1 
    lda #0
    ldy.z i
    cmp MESSAGE,y
    bne b2
    jmp breturn
    // main::@return
  breturn:
    // [7] return 
    rts
    // main::@2
  b2:
    // [8] (byte) chrout::c#0 ← *((const byte[]) MESSAGE#0 + (byte) main::i#2) -- vbuz1=pbuc1_derefidx_vbuz2 
    ldy.z i
    lda MESSAGE,y
    sta.z chrout.c
    // [9] call chrout 
    jsr chrout
    jmp b3
    // main::@3
  b3:
    // [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1 
    inc.z i
    // [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
  b1_from_b3:
    // [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@3->main::@1#0] -- register_copy 
    jmp b1
}
  // chrout
// chrout(byte zeropage(3) c)
chrout: {
    .label c = 3
    // [11] *((const byte*) memA#0) ← (byte) chrout::c#0 -- _deref_pbuc1=vbuz1 
    lda.z c
    sta memA
    // asm { ldamemA jsr$ffd2  }
    lda memA
    jsr $ffd2
    jmp breturn
    // chrout::@return
  breturn:
    // [13] return 
    rts
}
  // File Data
.encoding "petscii_mixed"
  MESSAGE: .text @"hello\nworld\\"
  .byte 0

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [6] if((byte) 0!=*((const byte[]) MESSAGE#0 + (byte) main::i#2)) goto main::@2 [ main::i#2 ] ( main:2 [ main::i#2 ] ) 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 ]
Statement asm { ldamemA jsr$ffd2  } always clobbers reg byte a reg byte x reg byte y 
Removing always clobbered register reg byte x as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Removing always clobbered register reg byte y as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Statement [6] if((byte) 0!=*((const byte[]) MESSAGE#0 + (byte) main::i#2)) goto main::@2 [ main::i#2 ] ( main:2 [ main::i#2 ] ) always clobbers reg byte a reg byte y 
Statement [8] (byte) chrout::c#0 ← *((const byte[]) MESSAGE#0 + (byte) main::i#2) [ main::i#2 chrout::c#0 ] ( main:2 [ main::i#2 chrout::c#0 ] ) always clobbers reg byte y 
Statement asm { ldamemA jsr$ffd2  } always clobbers reg byte a reg byte x reg byte y 
Potential registers zp ZP_BYTE:2 [ main::i#2 main::i#1 ] : zp ZP_BYTE:2 , 
Potential registers zp ZP_BYTE:3 [ chrout::c#0 ] : zp ZP_BYTE:3 , reg byte a , reg byte x , reg byte y , 

REGISTER UPLIFT SCOPES
Uplift Scope [main] 33: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 
Uplift Scope [chrout] 13: zp ZP_BYTE:3 [ chrout::c#0 ] 
Uplift Scope [] 

Uplifting [main] best 549 combination zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 
Uplifting [chrout] best 516 combination reg byte a [ chrout::c#0 ] 
Uplifting [] best 516 combination 
Attempting to uplift remaining variables inzp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Uplifting [main] best 516 combination zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Test using some simple supported string escape characters in PETSCII
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  .label memA = $ff
  // @begin
bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
  jmp b1
  // @1
b1:
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
main_from_b1:
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
  jmp bend
  // @end
bend:
  // main
main: {
    .label i = 2
    // [5] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
    // [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta.z i
    jmp b1
    // main::@1
  b1:
    // [6] if((byte) 0!=*((const byte[]) MESSAGE#0 + (byte) main::i#2)) goto main::@2 -- vbuc1_neq_pbuc2_derefidx_vbuz1_then_la1 
    lda #0
    ldy.z i
    cmp MESSAGE,y
    bne b2
    jmp breturn
    // main::@return
  breturn:
    // [7] return 
    rts
    // main::@2
  b2:
    // [8] (byte) chrout::c#0 ← *((const byte[]) MESSAGE#0 + (byte) main::i#2) -- vbuaa=pbuc1_derefidx_vbuz1 
    ldy.z i
    lda MESSAGE,y
    // [9] call chrout 
    jsr chrout
    jmp b3
    // main::@3
  b3:
    // [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1 
    inc.z i
    // [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
  b1_from_b3:
    // [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@3->main::@1#0] -- register_copy 
    jmp b1
}
  // chrout
// chrout(byte register(A) c)
chrout: {
    // [11] *((const byte*) memA#0) ← (byte) chrout::c#0 -- _deref_pbuc1=vbuaa 
    sta memA
    // asm { ldamemA jsr$ffd2  }
    lda memA
    jsr $ffd2
    jmp breturn
    // chrout::@return
  breturn:
    // [13] return 
    rts
}
  // File Data
.encoding "petscii_mixed"
  MESSAGE: .text @"hello\nworld\\"
  .byte 0

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp breturn
Removing instruction jmp b3
Removing instruction jmp breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction lda memA
Succesful ASM optimization Pass5UnnecesaryLoadElimination
Removing instruction b1_from_bbegin:
Removing instruction b1:
Removing instruction main_from_b1:
Removing instruction bend_from_b1:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction b1_from_main:
Removing instruction breturn:
Removing instruction b3:
Removing instruction b1_from_b3:
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[]) MESSAGE
(const byte[]) MESSAGE#0 MESSAGE = (string) "hello
world\"pm
(void()) chrout((byte) chrout::c)
(label) chrout::@return
(byte) chrout::c
(byte) chrout::c#0 reg byte a 13.0
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@3
(label) main::@return
(byte) main::i
(byte) main::i#1 i zp ZP_BYTE:2 22.0
(byte) main::i#2 i zp ZP_BYTE:2 11.0
(byte*) memA
(const byte*) memA#0 memA = (byte*) 255

zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
reg byte a [ chrout::c#0 ]


FINAL ASSEMBLER
Score: 407

  // File Comments
// Test using some simple supported string escape characters in PETSCII
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  .label memA = $ff
  // @begin
  // [1] phi from @begin to @1 [phi:@begin->@1]
  // @1
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
  // [3] phi from @1 to @end [phi:@1->@end]
  // @end
  // main
main: {
    .label i = 2
    // [5] phi from main to main::@1 [phi:main->main::@1]
    // [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta.z i
    // main::@1
  b1:
    // while(MESSAGE[i])
    // [6] if((byte) 0!=*((const byte[]) MESSAGE#0 + (byte) main::i#2)) goto main::@2 -- vbuc1_neq_pbuc2_derefidx_vbuz1_then_la1 
    lda #0
    ldy.z i
    cmp MESSAGE,y
    bne b2
    // main::@return
    // }
    // [7] return 
    rts
    // main::@2
  b2:
    // chrout(MESSAGE[i++])
    // [8] (byte) chrout::c#0 ← *((const byte[]) MESSAGE#0 + (byte) main::i#2) -- vbuaa=pbuc1_derefidx_vbuz1 
    ldy.z i
    lda MESSAGE,y
    // [9] call chrout 
    jsr chrout
    // main::@3
    // chrout(MESSAGE[i++]);
    // [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1 
    inc.z i
    // [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
    // [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@3->main::@1#0] -- register_copy 
    jmp b1
}
  // chrout
// chrout(byte register(A) c)
chrout: {
    // *memA = c
    // [11] *((const byte*) memA#0) ← (byte) chrout::c#0 -- _deref_pbuc1=vbuaa 
    sta memA
    // asm
    // asm { ldamemA jsr$ffd2  }
    jsr $ffd2
    // chrout::@return
    // }
    // [13] return 
    rts
}
  // File Data
.encoding "petscii_mixed"
  MESSAGE: .text @"hello\nworld\\"
  .byte 0