Warning! Adding boolean cast to non-boolean sub-expression (byte) main::b
Identified constant variable (byte) main::b
Identified constant variable (byte*) main::screen
Culled Empty Block (label) main::@1

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@1
main: scope:[main]  from @1
  (byte) main::b#0 ← (number) $c
  (bool~) main::$1 ← (number) 0 != (byte) main::b#0
  (bool~) main::$0 ← ! (bool~) main::$1
  if((bool~) main::$0) goto main::@return
  to:main::@2
main::@2: scope:[main]  from main
  (byte*) main::screen#0 ← ((byte*)) (number) $400
  *((byte*) main::screen#0) ← (byte) 'a'
  to:main::@return
main::@return: scope:[main]  from main main::@2
  return 
  to:@return
@1: scope:[]  from @begin
  call main 
  to:@2
@2: scope:[]  from @1
  to:@end
@end: scope:[]  from @2

SYMBOL TABLE SSA
(label) @1
(label) @2
(label) @begin
(label) @end
(void()) main()
(bool~) main::$0
(bool~) main::$1
(label) main::@2
(label) main::@return
(byte) main::b
(byte) main::b#0
(byte*) main::screen
(byte*) main::screen#0

Adding number conversion cast (unumber) $c in (byte) main::b#0 ← (number) $c
Adding number conversion cast (unumber) 0 in (bool~) main::$1 ← (number) 0 != (byte) main::b#0
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast (byte) main::b#0 ← (unumber)(number) $c
Inlining cast (byte*) main::screen#0 ← (byte*)(number) $400
Successful SSA optimization Pass2InlineCast
Simplifying constant integer cast $c
Simplifying constant integer cast 0
Simplifying constant pointer cast (byte*) 1024
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) $c
Finalized unsigned number type (byte) 0
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inversing boolean not [2] (bool~) main::$0 ← (byte) 0 == (byte) main::b#0 from [1] (bool~) main::$1 ← (byte) 0 != (byte) main::b#0
Successful SSA optimization Pass2UnaryNotSimplification
Simple Condition (bool~) main::$0 [3] if((byte) 0==(byte) main::b#0) goto main::@return
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const byte) main::b#0 = $c
Constant (const byte*) main::screen#0 = (byte*) 1024
Successful SSA optimization Pass2ConstantIdentification
if() condition always false - eliminating [3] if((byte) 0==(const byte) main::b#0) goto main::@return
Successful SSA optimization Pass2ConstantIfs
Eliminating unused constant (const byte) main::b#0
Successful SSA optimization PassNEliminateUnusedVars
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 @end
Adding NOP phi() at start of main
CALL GRAPH
Calls in [] to main:2 

Created 0 initial phi equivalence classes
Coalesced down to 0 phi equivalence classes
Culled Empty Block (label) @2
Renumbering block main::@2 to main::@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

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
  [5] *((const byte*) main::screen#0) ← (byte) 'a'
  to:main::@return
main::@return: scope:[main]  from main::@1
  [6] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(void()) main()
(byte) main::b
(byte*) main::screen

Initial phi equivalence classes
Complete equivalence classes

INITIAL ASM
Target platform is c64basic
  // File Comments
// Tests a condition type mismatch (not boolean)
  // 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: {
    .label screen = $400
    jmp b1
    // main::@1
  b1:
    // [5] *((const byte*) main::screen#0) ← (byte) 'a' -- _deref_pbuc1=vbuc2 
    lda #'a'
    sta screen
    jmp breturn
    // main::@return
  breturn:
    // [6] return 
    rts
}
  // File Data

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [5] *((const byte*) main::screen#0) ← (byte) 'a' [ ] ( main:2 [ ] ) always clobbers reg byte a 

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

Uplifting [main] best 57 combination 
Uplifting [] best 57 combination 

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Tests a condition type mismatch (not boolean)
  // 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: {
    .label screen = $400
    jmp b1
    // main::@1
  b1:
    // [5] *((const byte*) main::screen#0) ← (byte) 'a' -- _deref_pbuc1=vbuc2 
    lda #'a'
    sta screen
    jmp breturn
    // main::@return
  breturn:
    // [6] return 
    rts
}
  // File Data

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
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:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction b1:
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
(void()) main()
(label) main::@1
(label) main::@return
(byte) main::b
(byte*) main::screen
(const byte*) main::screen#0 screen = (byte*) 1024



FINAL ASSEMBLER
Score: 12

  // File Comments
// Tests a condition type mismatch (not boolean)
  // 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: {
    .label screen = $400
    // main::@1
    // *screen = 'a'
    // [5] *((const byte*) main::screen#0) ← (byte) 'a' -- _deref_pbuc1=vbuc2 
    lda #'a'
    sta screen
    // main::@return
    // }
    // [6] return 
    rts
}
  // File Data

