Identified constant variable (byte*) screen
Inlined call (byte~) main::$0 ← call toUpper (byte) 'c' true 
Inlined call (byte~) main::$1 ← call toUpper (byte) 'm' false 
Culled Empty Block (label) main::toUpper1_@3
Culled Empty Block (label) main::toUpper2_@3
Culled Empty Block (label) @1

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@2

(void()) main()
main: scope:[main]  from @2
  (byte) main::toUpper1_ch#0 ← (byte) 'c'
  (bool) main::toUpper1_bo#0 ← true
  to:main::toUpper1
main::toUpper1: scope:[main]  from main
  (bool) main::toUpper1_bo#1 ← phi( main/(bool) main::toUpper1_bo#0 )
  (byte) main::toUpper1_ch#1 ← phi( main/(byte) main::toUpper1_ch#0 )
  (byte) main::toUpper1_res#0 ← (byte) main::toUpper1_ch#1
  (bool~) main::toUpper1_$0 ← ! (bool) main::toUpper1_bo#1
  if((bool~) main::toUpper1_$0) goto main::toUpper1_@1
  to:main::toUpper1_@2
main::toUpper1_@1: scope:[main]  from main::toUpper1 main::toUpper1_@2
  (byte) main::toUpper1_res#2 ← phi( main::toUpper1/(byte) main::toUpper1_res#0 main::toUpper1_@2/(byte) main::toUpper1_res#1 )
  (byte) main::toUpper1_return#0 ← (byte) main::toUpper1_res#2
  to:main::toUpper1_@return
main::toUpper1_@2: scope:[main]  from main::toUpper1
  (byte) main::toUpper1_res#3 ← phi( main::toUpper1/(byte) main::toUpper1_res#0 )
  (byte) main::toUpper1_res#1 ← (byte) main::toUpper1_res#3 + (number) $40
  to:main::toUpper1_@1
main::toUpper1_@return: scope:[main]  from main::toUpper1_@1
  (byte) main::toUpper1_return#2 ← phi( main::toUpper1_@1/(byte) main::toUpper1_return#0 )
  (byte) main::toUpper1_return#1 ← (byte) main::toUpper1_return#2
  to:main::@1
main::@1: scope:[main]  from main::toUpper1_@return
  (byte) main::toUpper1_return#3 ← phi( main::toUpper1_@return/(byte) main::toUpper1_return#1 )
  (byte~) main::$0 ← (byte) main::toUpper1_return#3
  *((const byte*) screen + (number) 0) ← (byte~) main::$0
  (byte) main::toUpper2_ch#0 ← (byte) 'm'
  (bool) main::toUpper2_bo#0 ← false
  to:main::toUpper2
main::toUpper2: scope:[main]  from main::@1
  (bool) main::toUpper2_bo#1 ← phi( main::@1/(bool) main::toUpper2_bo#0 )
  (byte) main::toUpper2_ch#1 ← phi( main::@1/(byte) main::toUpper2_ch#0 )
  (byte) main::toUpper2_res#0 ← (byte) main::toUpper2_ch#1
  (bool~) main::toUpper2_$0 ← ! (bool) main::toUpper2_bo#1
  if((bool~) main::toUpper2_$0) goto main::toUpper2_@1
  to:main::toUpper2_@2
main::toUpper2_@1: scope:[main]  from main::toUpper2 main::toUpper2_@2
  (byte) main::toUpper2_res#2 ← phi( main::toUpper2/(byte) main::toUpper2_res#0 main::toUpper2_@2/(byte) main::toUpper2_res#1 )
  (byte) main::toUpper2_return#0 ← (byte) main::toUpper2_res#2
  to:main::toUpper2_@return
main::toUpper2_@2: scope:[main]  from main::toUpper2
  (byte) main::toUpper2_res#3 ← phi( main::toUpper2/(byte) main::toUpper2_res#0 )
  (byte) main::toUpper2_res#1 ← (byte) main::toUpper2_res#3 + (number) $40
  to:main::toUpper2_@1
main::toUpper2_@return: scope:[main]  from main::toUpper2_@1
  (byte) main::toUpper2_return#2 ← phi( main::toUpper2_@1/(byte) main::toUpper2_return#0 )
  (byte) main::toUpper2_return#1 ← (byte) main::toUpper2_return#2
  to:main::@2
main::@2: scope:[main]  from main::toUpper2_@return
  (byte) main::toUpper2_return#3 ← phi( main::toUpper2_@return/(byte) main::toUpper2_return#1 )
  (byte~) main::$1 ← (byte) main::toUpper2_return#3
  *((const byte*) screen + (number) 1) ← (byte~) main::$1
  to:main::@return
main::@return: scope:[main]  from main::@2
  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
(void()) main()
(byte~) main::$0
(byte~) main::$1
(label) main::@1
(label) main::@2
(label) main::@return
(label) main::toUpper1
(bool~) main::toUpper1_$0
(label) main::toUpper1_@1
(label) main::toUpper1_@2
(label) main::toUpper1_@return
(bool) main::toUpper1_bo
(bool) main::toUpper1_bo#0
(bool) main::toUpper1_bo#1
(byte) main::toUpper1_ch
(byte) main::toUpper1_ch#0
(byte) main::toUpper1_ch#1
(byte) main::toUpper1_res
(byte) main::toUpper1_res#0
(byte) main::toUpper1_res#1
(byte) main::toUpper1_res#2
(byte) main::toUpper1_res#3
(byte) main::toUpper1_return
(byte) main::toUpper1_return#0
(byte) main::toUpper1_return#1
(byte) main::toUpper1_return#2
(byte) main::toUpper1_return#3
(label) main::toUpper2
(bool~) main::toUpper2_$0
(label) main::toUpper2_@1
(label) main::toUpper2_@2
(label) main::toUpper2_@return
(bool) main::toUpper2_bo
(bool) main::toUpper2_bo#0
(bool) main::toUpper2_bo#1
(byte) main::toUpper2_ch
(byte) main::toUpper2_ch#0
(byte) main::toUpper2_ch#1
(byte) main::toUpper2_res
(byte) main::toUpper2_res#0
(byte) main::toUpper2_res#1
(byte) main::toUpper2_res#2
(byte) main::toUpper2_res#3
(byte) main::toUpper2_return
(byte) main::toUpper2_return#0
(byte) main::toUpper2_return#1
(byte) main::toUpper2_return#2
(byte) main::toUpper2_return#3
(const byte*) screen = (byte*)(number) $400

Adding number conversion cast (unumber) $40 in (byte) main::toUpper1_res#1 ← (byte) main::toUpper1_res#3 + (number) $40
Adding number conversion cast (unumber) 0 in *((const byte*) screen + (number) 0) ← (byte~) main::$0
Adding number conversion cast (unumber) $40 in (byte) main::toUpper2_res#1 ← (byte) main::toUpper2_res#3 + (number) $40
Adding number conversion cast (unumber) 1 in *((const byte*) screen + (number) 1) ← (byte~) main::$1
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast $40
Simplifying constant integer cast 0
Simplifying constant integer cast $40
Simplifying constant integer cast 1
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) $40
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) $40
Finalized unsigned number type (byte) 1
Successful SSA optimization PassNFinalizeNumberTypeConversions
Alias (byte) main::toUpper1_ch#0 = (byte) main::toUpper1_ch#1 (byte) main::toUpper1_res#0 (byte) main::toUpper1_res#3 
Alias (bool) main::toUpper1_bo#0 = (bool) main::toUpper1_bo#1 
Alias (byte) main::toUpper1_return#0 = (byte) main::toUpper1_res#2 (byte) main::toUpper1_return#2 (byte) main::toUpper1_return#1 (byte) main::toUpper1_return#3 (byte~) main::$0 
Alias (byte) main::toUpper2_ch#0 = (byte) main::toUpper2_ch#1 (byte) main::toUpper2_res#0 (byte) main::toUpper2_res#3 
Alias (bool) main::toUpper2_bo#0 = (bool) main::toUpper2_bo#1 
Alias (byte) main::toUpper2_return#0 = (byte) main::toUpper2_res#2 (byte) main::toUpper2_return#2 (byte) main::toUpper2_return#1 (byte) main::toUpper2_return#3 (byte~) main::$1 
Successful SSA optimization Pass2AliasElimination
Rewriting ! if()-condition to reversed if() [2] (bool~) main::toUpper1_$0 ← ! (bool) main::toUpper1_bo#0
Rewriting ! if()-condition to reversed if() [9] (bool~) main::toUpper2_$0 ← ! (bool) main::toUpper2_bo#0
Successful SSA optimization Pass2ConditionalAndOrRewriting
Constant (const byte) main::toUpper1_ch#0 = 'c'
Constant (const bool) main::toUpper1_bo#0 = true
Constant (const byte) main::toUpper2_ch#0 = 'm'
Constant (const bool) main::toUpper2_bo#0 = false
Successful SSA optimization Pass2ConstantIdentification
Removing PHI-reference to removed block (main::toUpper1) in block main::toUpper1_@1
if() condition always true - replacing block destination [3] if((const bool) main::toUpper1_bo#0) goto main::toUpper1_@2
if() condition always false - eliminating [10] if((const bool) main::toUpper2_bo#0) goto main::toUpper2_@2
Successful SSA optimization Pass2ConstantIfs
Simplifying expression containing zero screen in [6] *((const byte*) screen + (byte) 0) ← (byte) main::toUpper1_return#0
Successful SSA optimization PassNSimplifyExpressionWithZero
Eliminating unused constant (const bool) main::toUpper1_bo#0
Eliminating unused constant (const bool) main::toUpper2_bo#0
Successful SSA optimization PassNEliminateUnusedVars
Eliminating variable (byte) main::toUpper2_res#1 from unused block main::toUpper2_@2
Removing PHI-reference to removed block (main::toUpper2_@2) in block main::toUpper2_@1
Removing unused block main::toUpper2_@2
Successful SSA optimization Pass2EliminateUnusedBlocks
Alias (byte) main::toUpper1_return#0 = (byte) main::toUpper1_res#1 
Successful SSA optimization Pass2AliasElimination
Identical Phi Values (byte) main::toUpper2_return#0 (const byte) main::toUpper2_ch#0
Successful SSA optimization Pass2IdenticalPhiElimination
Constant right-side identified [0] (byte) main::toUpper1_return#0 ← (const byte) main::toUpper1_ch#0 + (byte) $40
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const byte) main::toUpper1_return#0 = main::toUpper1_ch#0+$40
Successful SSA optimization Pass2ConstantIdentification
Consolidated array index constant in *(screen+1)
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
Adding NOP phi() at start of main
Adding NOP phi() at start of main::toUpper1
Adding NOP phi() at start of main::toUpper1_@2
Adding NOP phi() at start of main::toUpper1_@1
Adding NOP phi() at start of main::toUpper1_@return
Adding NOP phi() at start of main::toUpper2
Adding NOP phi() at start of main::toUpper2_@1
Adding NOP phi() at start of main::toUpper2_@return
CALL GRAPH
Calls in [] to main:2 

Created 0 initial phi equivalence classes
Coalesced down to 0 phi equivalence classes
Culled Empty Block (label) @3
Culled Empty Block (label) main::toUpper1_@2
Culled Empty Block (label) main::toUpper1_@1
Culled Empty Block (label) main::toUpper1_@return
Culled Empty Block (label) main::toUpper2_@1
Culled Empty Block (label) main::toUpper2_@return
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::toUpper1
Adding NOP phi() at start of main::toUpper2

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()
  to:main::toUpper1
main::toUpper1: scope:[main]  from main
  [5] phi()
  to:main::@1
main::@1: scope:[main]  from main::toUpper1
  [6] *((const byte*) screen) ← (const byte) main::toUpper1_return#0
  to:main::toUpper2
main::toUpper2: scope:[main]  from main::@1
  [7] phi()
  to:main::@2
main::@2: scope:[main]  from main::toUpper2
  [8] *((const byte*) screen+(byte) 1) ← (const byte) main::toUpper2_ch#0
  to:main::@return
main::@return: scope:[main]  from main::@2
  [9] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(void()) main()
(bool) main::toUpper1_bo
(byte) main::toUpper1_ch
(byte) main::toUpper1_res
(byte) main::toUpper1_return
(bool) main::toUpper2_bo
(byte) main::toUpper2_ch
(byte) main::toUpper2_res
(byte) main::toUpper2_return

Initial phi equivalence classes
Complete equivalence classes

INITIAL ASM
Target platform is c64basic / MOS6502X
  // File Comments
// Test inlining a slightly complex print function (containing an if)
  // 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: {
    .const toUpper1_ch = 'c'
    .const toUpper2_ch = 'm'
    .const toUpper1_return = toUpper1_ch+$40
    // [5] phi from main to main::toUpper1 [phi:main->main::toUpper1]
  toUpper1_from_main:
    jmp toUpper1
    // main::toUpper1
  toUpper1:
    jmp __b1
    // main::@1
  __b1:
    // [6] *((const byte*) screen) ← (const byte) main::toUpper1_return#0 -- _deref_pbuc1=vbuc2 
    lda #toUpper1_return
    sta screen
    // [7] phi from main::@1 to main::toUpper2 [phi:main::@1->main::toUpper2]
  toUpper2_from___b1:
    jmp toUpper2
    // main::toUpper2
  toUpper2:
    jmp __b2
    // main::@2
  __b2:
    // [8] *((const byte*) screen+(byte) 1) ← (const byte) main::toUpper2_ch#0 -- _deref_pbuc1=vbuc2 
    lda #toUpper2_ch
    sta screen+1
    jmp __breturn
    // main::@return
  __breturn:
    // [9] return 
    rts
}
  // File Data

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [6] *((const byte*) screen) ← (const byte) main::toUpper1_return#0 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [8] *((const byte*) screen+(byte) 1) ← (const byte) main::toUpper2_ch#0 [ ] ( main:2 [ ] ) always clobbers reg byte a 

REGISTER UPLIFT SCOPES
Uplift Scope [main] 
Uplift Scope [] 

Uplifting [main] best 99 combination 
Uplifting [] best 99 combination 

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Test inlining a slightly complex print function (containing an if)
  // 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: {
    .const toUpper1_ch = 'c'
    .const toUpper2_ch = 'm'
    .const toUpper1_return = toUpper1_ch+$40
    // [5] phi from main to main::toUpper1 [phi:main->main::toUpper1]
  toUpper1_from_main:
    jmp toUpper1
    // main::toUpper1
  toUpper1:
    jmp __b1
    // main::@1
  __b1:
    // [6] *((const byte*) screen) ← (const byte) main::toUpper1_return#0 -- _deref_pbuc1=vbuc2 
    lda #toUpper1_return
    sta screen
    // [7] phi from main::@1 to main::toUpper2 [phi:main::@1->main::toUpper2]
  toUpper2_from___b1:
    jmp toUpper2
    // main::toUpper2
  toUpper2:
    jmp __b2
    // main::@2
  __b2:
    // [8] *((const byte*) screen+(byte) 1) ← (const byte) main::toUpper2_ch#0 -- _deref_pbuc1=vbuc2 
    lda #toUpper2_ch
    sta screen+1
    jmp __breturn
    // main::@return
  __breturn:
    // [9] return 
    rts
}
  // File Data

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp __b1
Removing instruction jmp __bend
Removing instruction jmp toUpper1
Removing instruction jmp __b1
Removing instruction jmp toUpper2
Removing instruction jmp __b2
Removing instruction jmp __breturn
Succesful ASM optimization Pass5NextJumpElimination
Replacing label __bbegin with __b1
Removing instruction __bbegin:
Removing instruction __b1_from___bbegin:
Removing instruction main_from___b1:
Removing instruction __bend_from___b1:
Removing instruction toUpper1_from_main:
Removing instruction toUpper1:
Removing instruction toUpper2_from___b1:
Removing instruction toUpper2:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction __bend:
Removing instruction __b1:
Removing instruction __b2:
Removing instruction __breturn:
Succesful ASM optimization Pass5UnusedLabelElimination
Updating BasicUpstart to call main directly
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
Removing instruction __b1:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@return
(label) main::toUpper1
(bool) main::toUpper1_bo
(byte) main::toUpper1_ch
(const byte) main::toUpper1_ch#0 toUpper1_ch = (byte) 'c'
(byte) main::toUpper1_res
(byte) main::toUpper1_return
(const byte) main::toUpper1_return#0 toUpper1_return = (const byte) main::toUpper1_ch#0+(byte) $40
(label) main::toUpper2
(bool) main::toUpper2_bo
(byte) main::toUpper2_ch
(const byte) main::toUpper2_ch#0 toUpper2_ch = (byte) 'm'
(byte) main::toUpper2_res
(byte) main::toUpper2_return
(const byte*) screen = (byte*) 1024



FINAL ASSEMBLER
Score: 18

  // File Comments
// Test inlining a slightly complex print function (containing an if)
  // 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: {
    .const toUpper1_ch = 'c'
    .const toUpper2_ch = 'm'
    .const toUpper1_return = toUpper1_ch+$40
    // [5] phi from main to main::toUpper1 [phi:main->main::toUpper1]
    // main::toUpper1
    // main::@1
    // screen[0] = toUpper('c',true)
    // [6] *((const byte*) screen) ← (const byte) main::toUpper1_return#0 -- _deref_pbuc1=vbuc2 
    lda #toUpper1_return
    sta screen
    // [7] phi from main::@1 to main::toUpper2 [phi:main::@1->main::toUpper2]
    // main::toUpper2
    // main::@2
    // screen[1] = toUpper('m',false)
    // [8] *((const byte*) screen+(byte) 1) ← (const byte) main::toUpper2_ch#0 -- _deref_pbuc1=vbuc2 
    lda #toUpper2_ch
    sta screen+1
    // main::@return
    // }
    // [9] return 
    rts
}
  // File Data

