diff --git a/src/test/kc/var-register-zp-3.kc b/src/test/kc/var-register-zp-3.kc
index 75902769a..cc4a39276 100644
--- a/src/test/kc/var-register-zp-3.kc
+++ b/src/test/kc/var-register-zp-3.kc
@@ -4,7 +4,7 @@ char* screen = $400;
 
 void main() {
     print2(screen, "hello");
-    //print2(screen+80, "hello");
+    print2(screen+80, "world");
 }
 
 void print2(char* __address(250) at, char* __address(252) msg) {
diff --git a/src/test/ref/var-register-zp-3.asm b/src/test/ref/var-register-zp-3.asm
index e8a0cf04a..791d42f58 100644
--- a/src/test/ref/var-register-zp-3.asm
+++ b/src/test/ref/var-register-zp-3.asm
@@ -4,10 +4,29 @@
 .pc = $80d "Program"
   .label screen = $400
 main: {
+    lda #<screen
+    sta.z print2.at
+    lda #>screen
+    sta.z print2.at+1
+    lda #<msg
+    sta.z print2.msg
+    lda #>msg
+    sta.z print2.msg+1
+    jsr print2
+    lda #<screen+$50
+    sta.z print2.at
+    lda #>screen+$50
+    sta.z print2.at+1
+    lda #<msg1
+    sta.z print2.msg
+    lda #>msg1
+    sta.z print2.msg+1
     jsr print2
     rts
     msg: .text "hello"
     .byte 0
+    msg1: .text "world"
+    .byte 0
 }
 // print2(byte* zeropage($fa) at, byte* zeropage($fc) msg)
 print2: {
@@ -15,16 +34,8 @@ print2: {
     .label msg = $fc
     .label at = $fa
     ldx #0
-    lda #<screen
-    sta.z at
-    lda #>screen
-    sta.z at+1
     txa
     sta.z i
-    lda #<main.msg
-    sta.z msg
-    lda #>main.msg
-    sta.z msg+1
   __b1:
     ldy.z i
     lda (msg),y
diff --git a/src/test/ref/var-register-zp-3.cfg b/src/test/ref/var-register-zp-3.cfg
index d789b1b86..437d38ca7 100644
--- a/src/test/ref/var-register-zp-3.cfg
+++ b/src/test/ref/var-register-zp-3.cfg
@@ -12,43 +12,48 @@
 main: scope:[main]  from @1
   [4] phi()
   [5] call print2 
+  to:main::@1
+main::@1: scope:[main]  from main
+  [6] phi()
+  [7] call print2 
   to:main::@return
-main::@return: scope:[main]  from main
-  [6] return 
+main::@return: scope:[main]  from main::@1
+  [8] return 
   to:@return
 
 (void()) print2((byte*) print2::at , (byte*) print2::msg)
-print2: scope:[print2]  from main
-  [7] phi()
+print2: scope:[print2]  from main main::@1
+  [9] (byte*) print2::at#4 ← phi( main/(const byte*) screen main::@1/(const byte*) screen+(byte) $50 )
+  [9] (byte*) print2::msg#4 ← phi( main/(const string) main::msg main::@1/(const string) main::msg1 )
   to:print2::@1
 print2::@1: scope:[print2]  from print2 print2::@3
-  [8] (byte) print2::j#2 ← phi( print2/(byte) 0 print2::@3/(byte) print2::j#1 )
-  [8] (byte*) print2::at#1 ← phi( print2/(const byte*) screen print2::@3/(byte*) print2::at#1 )
-  [8] (byte) print2::i#2 ← phi( print2/(byte) 0 print2::@3/(byte) print2::i#1 )
-  [8] (byte*) print2::msg#1 ← phi( print2/(const string) main::msg print2::@3/(byte*) print2::msg#1 )
-  [9] if((byte) 0!=*((byte*) print2::msg#1 + (byte) print2::i#2)) goto print2::@2
+  [10] (byte) print2::j#2 ← phi( print2/(byte) 0 print2::@3/(byte) print2::j#1 )
+  [10] (byte*) print2::at#2 ← phi( print2/(byte*) print2::at#4 print2::@3/(byte*) print2::at#2 )
+  [10] (byte) print2::i#2 ← phi( print2/(byte) 0 print2::@3/(byte) print2::i#1 )
+  [10] (byte*) print2::msg#2 ← phi( print2/(byte*) print2::msg#4 print2::@3/(byte*) print2::msg#2 )
+  [11] if((byte) 0!=*((byte*) print2::msg#2 + (byte) print2::i#2)) goto print2::@2
   to:print2::@return
 print2::@return: scope:[print2]  from print2::@1
-  [10] return 
+  [12] return 
   to:@return
 print2::@2: scope:[print2]  from print2::@1
-  [11] (byte*) print_char::at#0 ← (byte*) print2::at#1
-  [12] (byte) print_char::idx#0 ← (byte) print2::j#2
-  [13] (byte) print_char::ch#0 ← *((byte*) print2::msg#1 + (byte) print2::i#2)
-  [14] call print_char 
+  [13] (byte*) print_char::at#0 ← (byte*) print2::at#2
+  [14] (byte) print_char::idx#0 ← (byte) print2::j#2
+  [15] (byte) print_char::ch#0 ← *((byte*) print2::msg#2 + (byte) print2::i#2)
+  [16] call print_char 
   to:print2::@3
 print2::@3: scope:[print2]  from print2::@2
-  [15] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2
-  [16] (byte) print2::i#1 ← ++ (byte) print2::i#2
+  [17] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2
+  [18] (byte) print2::i#1 ← ++ (byte) print2::i#2
   to:print2::@1
 
 (void()) print_char((byte*) print_char::at , (byte) print_char::idx , (byte) print_char::ch)
 print_char: scope:[print_char]  from print2::@2
-  [17] (byte) print_char::idx#1 ← phi( print2::@2/(byte) print_char::idx#0 )
-  [17] (byte*) print_char::at#1 ← phi( print2::@2/(byte*) print_char::at#0 )
-  [17] (byte) print_char::ch#1 ← phi( print2::@2/(byte) print_char::ch#0 )
-  [18] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1
+  [19] (byte) print_char::idx#1 ← phi( print2::@2/(byte) print_char::idx#0 )
+  [19] (byte*) print_char::at#1 ← phi( print2::@2/(byte*) print_char::at#0 )
+  [19] (byte) print_char::ch#1 ← phi( print2::@2/(byte) print_char::ch#0 )
+  [20] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1
   to:print_char::@return
 print_char::@return: scope:[print_char]  from print_char
-  [19] return 
+  [21] return 
   to:@return
diff --git a/src/test/ref/var-register-zp-3.log b/src/test/ref/var-register-zp-3.log
index dff04997f..b2731944e 100644
--- a/src/test/ref/var-register-zp-3.log
+++ b/src/test/ref/var-register-zp-3.log
@@ -18,39 +18,45 @@ main: scope:[main]  from @3
   call print2 
   to:main::@1
 main::@1: scope:[main]  from main
+  (byte*~) main::$1 ← (const byte*) screen + (number) $50
+  (byte*) print2::at#1 ← (byte*~) main::$1
+  (byte*) print2::msg#1 ← (const string) main::msg1
+  call print2 
+  to:main::@2
+main::@2: scope:[main]  from main::@1
   to:main::@return
-main::@return: scope:[main]  from main::@1
+main::@return: scope:[main]  from main::@2
   return 
   to:@return
 
 (void()) print2((byte*) print2::at , (byte*) print2::msg)
-print2: scope:[print2]  from main
-  (byte*) print2::at#3 ← phi( main/(byte*) print2::at#0 )
-  (byte*) print2::msg#3 ← phi( main/(byte*) print2::msg#0 )
+print2: scope:[print2]  from main main::@1
+  (byte*) print2::at#4 ← phi( main/(byte*) print2::at#0 main::@1/(byte*) print2::at#1 )
+  (byte*) print2::msg#4 ← phi( main/(byte*) print2::msg#0 main::@1/(byte*) print2::msg#1 )
   (byte) print2::j#0 ← (number) 0
   (byte) print2::i#0 ← (number) 0
   to:print2::@1
 print2::@1: scope:[print2]  from print2 print2::@7
   (byte) print2::j#4 ← phi( print2/(byte) print2::j#0 print2::@7/(byte) print2::j#1 )
-  (byte*) print2::at#2 ← phi( print2/(byte*) print2::at#3 print2::@7/(byte*) print2::at#4 )
+  (byte*) print2::at#3 ← phi( print2/(byte*) print2::at#4 print2::@7/(byte*) print2::at#5 )
   (byte) print2::i#2 ← phi( print2/(byte) print2::i#0 print2::@7/(byte) print2::i#1 )
-  (byte*) print2::msg#1 ← phi( print2/(byte*) print2::msg#3 print2::@7/(byte*) print2::msg#4 )
-  (bool~) print2::$1 ← (number) 0 != *((byte*) print2::msg#1 + (byte) print2::i#2)
+  (byte*) print2::msg#2 ← phi( print2/(byte*) print2::msg#4 print2::@7/(byte*) print2::msg#5 )
+  (bool~) print2::$1 ← (number) 0 != *((byte*) print2::msg#2 + (byte) print2::i#2)
   if((bool~) print2::$1) goto print2::@2
   to:print2::@return
 print2::@2: scope:[print2]  from print2::@1
   (byte) print2::i#3 ← phi( print2::@1/(byte) print2::i#2 )
-  (byte*) print2::msg#2 ← phi( print2::@1/(byte*) print2::msg#1 )
+  (byte*) print2::msg#3 ← phi( print2::@1/(byte*) print2::msg#2 )
   (byte) print2::j#2 ← phi( print2::@1/(byte) print2::j#4 )
-  (byte*) print2::at#1 ← phi( print2::@1/(byte*) print2::at#2 )
-  (byte*) print_char::at#0 ← (byte*) print2::at#1
+  (byte*) print2::at#2 ← phi( print2::@1/(byte*) print2::at#3 )
+  (byte*) print_char::at#0 ← (byte*) print2::at#2
   (byte) print_char::idx#0 ← (byte) print2::j#2
-  (byte) print_char::ch#0 ← *((byte*) print2::msg#2 + (byte) print2::i#3)
+  (byte) print_char::ch#0 ← *((byte*) print2::msg#3 + (byte) print2::i#3)
   call print_char 
   to:print2::@7
 print2::@7: scope:[print2]  from print2::@2
-  (byte*) print2::at#4 ← phi( print2::@2/(byte*) print2::at#1 )
-  (byte*) print2::msg#4 ← phi( print2::@2/(byte*) print2::msg#2 )
+  (byte*) print2::at#5 ← phi( print2::@2/(byte*) print2::at#2 )
+  (byte*) print2::msg#5 ← phi( print2::@2/(byte*) print2::msg#3 )
   (byte) print2::i#4 ← phi( print2::@2/(byte) print2::i#3 )
   (byte) print2::j#3 ← phi( print2::@2/(byte) print2::j#2 )
   (byte) print2::j#1 ← (byte) print2::j#3 + (number) 2
@@ -83,9 +89,12 @@ SYMBOL TABLE SSA
 (label) @begin
 (label) @end
 (void()) main()
+(byte*~) main::$1
 (label) main::@1
+(label) main::@2
 (label) main::@return
 (const string) main::msg = (string) "hello"
+(const string) main::msg1 = (string) "world"
 (void()) print2((byte*) print2::at , (byte*) print2::msg)
 (bool~) print2::$1
 (label) print2::@1
@@ -98,6 +107,7 @@ SYMBOL TABLE SSA
 (byte*) print2::at#2 !zp[-1]:250
 (byte*) print2::at#3 !zp[-1]:250
 (byte*) print2::at#4 !zp[-1]:250
+(byte*) print2::at#5 !zp[-1]:250
 (byte) print2::i
 (byte) print2::i#0
 (byte) print2::i#1
@@ -116,6 +126,7 @@ SYMBOL TABLE SSA
 (byte*) print2::msg#2 !zp[-1]:252
 (byte*) print2::msg#3 !zp[-1]:252
 (byte*) print2::msg#4 !zp[-1]:252
+(byte*) print2::msg#5 !zp[-1]:252
 (void()) print_char((byte*) print_char::at , (byte) print_char::idx , (byte) print_char::ch)
 (label) print_char::@return
 (byte*) print_char::at !zp[-1]:250
@@ -129,52 +140,57 @@ SYMBOL TABLE SSA
 (byte) print_char::idx#1 !reg byte x
 (const byte*) screen = (byte*)(number) $400
 
+Adding number conversion cast (unumber) $50 in (byte*~) main::$1 ← (const byte*) screen + (number) $50
 Adding number conversion cast (unumber) 0 in (byte) print2::j#0 ← (number) 0
 Adding number conversion cast (unumber) 0 in (byte) print2::i#0 ← (number) 0
-Adding number conversion cast (unumber) 0 in (bool~) print2::$1 ← (number) 0 != *((byte*) print2::msg#1 + (byte) print2::i#2)
+Adding number conversion cast (unumber) 0 in (bool~) print2::$1 ← (number) 0 != *((byte*) print2::msg#2 + (byte) print2::i#2)
 Adding number conversion cast (unumber) 2 in (byte) print2::j#1 ← (byte) print2::j#3 + (number) 2
 Successful SSA optimization PassNAddNumberTypeConversions
 Inlining cast (byte) print2::j#0 ← (unumber)(number) 0
 Inlining cast (byte) print2::i#0 ← (unumber)(number) 0
 Successful SSA optimization Pass2InlineCast
 Simplifying constant pointer cast (byte*) 1024
+Simplifying constant integer cast $50
 Simplifying constant integer cast 0
 Simplifying constant integer cast 0
 Simplifying constant integer cast 0
 Simplifying constant integer cast 2
 Successful SSA optimization PassNCastSimplification
+Finalized unsigned number type (byte) $50
 Finalized unsigned number type (byte) 0
 Finalized unsigned number type (byte) 0
 Finalized unsigned number type (byte) 0
 Finalized unsigned number type (byte) 2
 Successful SSA optimization PassNFinalizeNumberTypeConversions
-Alias (byte*) print2::at#1 = (byte*) print2::at#2 (byte*) print2::at#4 
+Alias (byte*) print2::at#1 = (byte*~) main::$1 
+Alias (byte*) print2::at#2 = (byte*) print2::at#3 (byte*) print2::at#5 
 Alias (byte) print2::j#2 = (byte) print2::j#4 (byte) print2::j#3 
-Alias (byte*) print2::msg#1 = (byte*) print2::msg#2 (byte*) print2::msg#4 
+Alias (byte*) print2::msg#2 = (byte*) print2::msg#3 (byte*) print2::msg#5 
 Alias (byte) print2::i#2 = (byte) print2::i#3 (byte) print2::i#4 
 Successful SSA optimization Pass2AliasElimination
-Simple Condition (bool~) print2::$1 [9] if((byte) 0!=*((byte*) print2::msg#1 + (byte) print2::i#2)) goto print2::@2
+Simple Condition (bool~) print2::$1 [13] if((byte) 0!=*((byte*) print2::msg#2 + (byte) print2::i#2)) goto print2::@2
 Successful SSA optimization Pass2ConditionalJumpSimplification
+Constant right-side identified [3] (byte*) print2::at#1 ← (const byte*) screen + (byte) $50
+Successful SSA optimization Pass2ConstantRValueConsolidation
 Constant (const byte*) print2::at#0 = screen
 Constant (const byte*) print2::msg#0 = main::msg
+Constant (const byte*) print2::at#1 = screen+$50
+Constant (const byte*) print2::msg#1 = main::msg1
 Constant (const byte) print2::j#0 = 0
 Constant (const byte) print2::i#0 = 0
 Successful SSA optimization Pass2ConstantIdentification
-Constant (const byte*) print2::msg#3 = print2::msg#0
-Constant (const byte*) print2::at#3 = print2::at#0
-Successful SSA optimization Pass2ConstantIdentification
 Inlining constant with var siblings (const byte*) print2::at#0
 Inlining constant with var siblings (const byte*) print2::msg#0
+Inlining constant with var siblings (const byte*) print2::at#1
+Inlining constant with var siblings (const byte*) print2::msg#1
 Inlining constant with var siblings (const byte) print2::j#0
 Inlining constant with var siblings (const byte) print2::i#0
-Inlining constant with var siblings (const byte*) print2::msg#3
-Inlining constant with var siblings (const byte*) print2::at#3
+Constant inlined print2::at#1 = (const byte*) screen+(byte) $50
 Constant inlined print2::at#0 = (const byte*) screen
-Constant inlined print2::msg#3 = (const string) main::msg
+Constant inlined print2::msg#1 = (const string) main::msg1
 Constant inlined print2::j#0 = (byte) 0
 Constant inlined print2::msg#0 = (const string) main::msg
 Constant inlined print2::i#0 = (byte) 0
-Constant inlined print2::at#3 = (const byte*) screen
 Successful SSA optimization Pass2ConstantInlining
 Adding NOP phi() at start of @begin
 Adding NOP phi() at start of @3
@@ -182,30 +198,32 @@ 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 print2
+Adding NOP phi() at start of main::@2
 CALL GRAPH
 Calls in [] to main:2 
-Calls in [main] to print2:6 
-Calls in [print2] to print_char:19 
+Calls in [main] to print2:6 print2:8 
+Calls in [print2] to print_char:23 
 
-Created 7 initial phi equivalence classes
-Coalesced [16] print_char::ch#2 ← print_char::ch#0
-Coalesced [17] print_char::at#2 ← print_char::at#0
-Coalesced [18] print_char::idx#2 ← print_char::idx#0
-Coalesced (already) [22] print2::msg#5 ← print2::msg#1
-Coalesced [23] print2::i#5 ← print2::i#1
-Coalesced (already) [24] print2::at#5 ← print2::at#1
-Coalesced [25] print2::j#5 ← print2::j#1
+Created 9 initial phi equivalence classes
+Coalesced [12] print2::msg#6 ← print2::msg#4
+Coalesced [13] print2::at#6 ← print2::at#4
+Coalesced [20] print_char::ch#2 ← print_char::ch#0
+Coalesced [21] print_char::at#2 ← print_char::at#0
+Coalesced [22] print_char::idx#2 ← print_char::idx#0
+Coalesced (already) [26] print2::msg#7 ← print2::msg#2
+Coalesced [27] print2::i#5 ← print2::i#1
+Coalesced (already) [28] print2::at#7 ← print2::at#2
+Coalesced [29] print2::j#5 ← print2::j#1
 Coalesced down to 7 phi equivalence classes
 Culled Empty Block (label) @4
-Culled Empty Block (label) main::@1
+Culled Empty Block (label) main::@2
 Renumbering block @3 to @1
 Renumbering block print2::@7 to print2::@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
-Adding NOP phi() at start of print2
+Adding NOP phi() at start of main::@1
 
 FINAL CONTROL FLOW GRAPH
 @begin: scope:[]  from
@@ -222,45 +240,50 @@ FINAL CONTROL FLOW GRAPH
 main: scope:[main]  from @1
   [4] phi()
   [5] call print2 
+  to:main::@1
+main::@1: scope:[main]  from main
+  [6] phi()
+  [7] call print2 
   to:main::@return
-main::@return: scope:[main]  from main
-  [6] return 
+main::@return: scope:[main]  from main::@1
+  [8] return 
   to:@return
 
 (void()) print2((byte*) print2::at , (byte*) print2::msg)
-print2: scope:[print2]  from main
-  [7] phi()
+print2: scope:[print2]  from main main::@1
+  [9] (byte*) print2::at#4 ← phi( main/(const byte*) screen main::@1/(const byte*) screen+(byte) $50 )
+  [9] (byte*) print2::msg#4 ← phi( main/(const string) main::msg main::@1/(const string) main::msg1 )
   to:print2::@1
 print2::@1: scope:[print2]  from print2 print2::@3
-  [8] (byte) print2::j#2 ← phi( print2/(byte) 0 print2::@3/(byte) print2::j#1 )
-  [8] (byte*) print2::at#1 ← phi( print2/(const byte*) screen print2::@3/(byte*) print2::at#1 )
-  [8] (byte) print2::i#2 ← phi( print2/(byte) 0 print2::@3/(byte) print2::i#1 )
-  [8] (byte*) print2::msg#1 ← phi( print2/(const string) main::msg print2::@3/(byte*) print2::msg#1 )
-  [9] if((byte) 0!=*((byte*) print2::msg#1 + (byte) print2::i#2)) goto print2::@2
+  [10] (byte) print2::j#2 ← phi( print2/(byte) 0 print2::@3/(byte) print2::j#1 )
+  [10] (byte*) print2::at#2 ← phi( print2/(byte*) print2::at#4 print2::@3/(byte*) print2::at#2 )
+  [10] (byte) print2::i#2 ← phi( print2/(byte) 0 print2::@3/(byte) print2::i#1 )
+  [10] (byte*) print2::msg#2 ← phi( print2/(byte*) print2::msg#4 print2::@3/(byte*) print2::msg#2 )
+  [11] if((byte) 0!=*((byte*) print2::msg#2 + (byte) print2::i#2)) goto print2::@2
   to:print2::@return
 print2::@return: scope:[print2]  from print2::@1
-  [10] return 
+  [12] return 
   to:@return
 print2::@2: scope:[print2]  from print2::@1
-  [11] (byte*) print_char::at#0 ← (byte*) print2::at#1
-  [12] (byte) print_char::idx#0 ← (byte) print2::j#2
-  [13] (byte) print_char::ch#0 ← *((byte*) print2::msg#1 + (byte) print2::i#2)
-  [14] call print_char 
+  [13] (byte*) print_char::at#0 ← (byte*) print2::at#2
+  [14] (byte) print_char::idx#0 ← (byte) print2::j#2
+  [15] (byte) print_char::ch#0 ← *((byte*) print2::msg#2 + (byte) print2::i#2)
+  [16] call print_char 
   to:print2::@3
 print2::@3: scope:[print2]  from print2::@2
-  [15] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2
-  [16] (byte) print2::i#1 ← ++ (byte) print2::i#2
+  [17] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2
+  [18] (byte) print2::i#1 ← ++ (byte) print2::i#2
   to:print2::@1
 
 (void()) print_char((byte*) print_char::at , (byte) print_char::idx , (byte) print_char::ch)
 print_char: scope:[print_char]  from print2::@2
-  [17] (byte) print_char::idx#1 ← phi( print2::@2/(byte) print_char::idx#0 )
-  [17] (byte*) print_char::at#1 ← phi( print2::@2/(byte*) print_char::at#0 )
-  [17] (byte) print_char::ch#1 ← phi( print2::@2/(byte) print_char::ch#0 )
-  [18] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1
+  [19] (byte) print_char::idx#1 ← phi( print2::@2/(byte) print_char::idx#0 )
+  [19] (byte*) print_char::at#1 ← phi( print2::@2/(byte*) print_char::at#0 )
+  [19] (byte) print_char::ch#1 ← phi( print2::@2/(byte) print_char::ch#0 )
+  [20] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1
   to:print_char::@return
 print_char::@return: scope:[print_char]  from print_char
-  [19] return 
+  [21] return 
   to:@return
 
 
@@ -268,7 +291,8 @@ VARIABLE REGISTER WEIGHTS
 (void()) main()
 (void()) print2((byte*) print2::at , (byte*) print2::msg)
 (byte*) print2::at !zp[-1]:250
-(byte*) print2::at#1 !zp[-1]:250 4.125
+(byte*) print2::at#2 !zp[-1]:250 4.375
+(byte*) print2::at#4 !zp[-1]:250 2.0
 (byte) print2::i
 (byte) print2::i#1 22.0
 (byte) print2::i#2 6.285714285714286
@@ -276,7 +300,8 @@ VARIABLE REGISTER WEIGHTS
 (byte) print2::j#1 11.0
 (byte) print2::j#2 5.5
 (byte*) print2::msg !zp[-1]:252
-(byte*) print2::msg#1 !zp[-1]:252 5.5
+(byte*) print2::msg#2 !zp[-1]:252 5.75
+(byte*) print2::msg#4 !zp[-1]:252 2.0
 (void()) print_char((byte*) print_char::at , (byte) print_char::idx , (byte) print_char::ch)
 (byte*) print_char::at !zp[-1]:250
 (byte*) print_char::at#0 !zp[-1]:250 7.333333333333333
@@ -289,17 +314,17 @@ VARIABLE REGISTER WEIGHTS
 (byte) print_char::idx#1 !reg byte x 13.0
 
 Initial phi equivalence classes
-[ print2::msg#1 ]
+[ print2::msg#2 print2::msg#4 ]
 [ print2::i#2 print2::i#1 ]
-[ print2::at#1 ]
+[ print2::at#2 print2::at#4 ]
 [ print2::j#2 print2::j#1 ]
 [ print_char::ch#1 print_char::ch#0 ]
 [ print_char::at#1 print_char::at#0 ]
 [ print_char::idx#1 print_char::idx#0 ]
 Complete equivalence classes
-[ print2::msg#1 ]
+[ print2::msg#2 print2::msg#4 ]
 [ print2::i#2 print2::i#1 ]
-[ print2::at#1 ]
+[ print2::at#2 print2::at#4 ]
 [ print2::j#2 print2::j#1 ]
 [ print_char::ch#1 print_char::ch#0 ]
 [ print_char::at#1 print_char::at#0 ]
@@ -336,16 +361,47 @@ __bend:
   // main
 main: {
     // [5] call print2 
-    // [7] phi from main to print2 [phi:main->print2]
+    // [9] phi from main to print2 [phi:main->print2]
   print2_from_main:
+    // [9] phi (byte*) print2::at#4 = (const byte*) screen [phi:main->print2#0] -- pbuz1=pbuc1 
+    lda #<screen
+    sta.z print2.at
+    lda #>screen
+    sta.z print2.at+1
+    // [9] phi (byte*) print2::msg#4 = (const string) main::msg [phi:main->print2#1] -- pbuz1=pbuc1 
+    lda #<msg
+    sta.z print2.msg
+    lda #>msg
+    sta.z print2.msg+1
+    jsr print2
+    // [6] phi from main to main::@1 [phi:main->main::@1]
+  __b1_from_main:
+    jmp __b1
+    // main::@1
+  __b1:
+    // [7] call print2 
+    // [9] phi from main::@1 to print2 [phi:main::@1->print2]
+  print2_from___b1:
+    // [9] phi (byte*) print2::at#4 = (const byte*) screen+(byte) $50 [phi:main::@1->print2#0] -- pbuz1=pbuc1 
+    lda #<screen+$50
+    sta.z print2.at
+    lda #>screen+$50
+    sta.z print2.at+1
+    // [9] phi (byte*) print2::msg#4 = (const string) main::msg1 [phi:main::@1->print2#1] -- pbuz1=pbuc1 
+    lda #<msg1
+    sta.z print2.msg
+    lda #>msg1
+    sta.z print2.msg+1
     jsr print2
     jmp __breturn
     // main::@return
   __breturn:
-    // [6] return 
+    // [8] return 
     rts
     msg: .text "hello"
     .byte 0
+    msg1: .text "world"
+    .byte 0
 }
   // print2
 // print2(byte* zeropage($fa) at, byte* zeropage($fc) msg)
@@ -354,28 +410,20 @@ print2: {
     .label i = 2
     .label msg = $fc
     .label at = $fa
-    // [8] phi from print2 to print2::@1 [phi:print2->print2::@1]
+    // [10] phi from print2 to print2::@1 [phi:print2->print2::@1]
   __b1_from_print2:
-    // [8] phi (byte) print2::j#2 = (byte) 0 [phi:print2->print2::@1#0] -- vbuz1=vbuc1 
+    // [10] phi (byte) print2::j#2 = (byte) 0 [phi:print2->print2::@1#0] -- vbuz1=vbuc1 
     lda #0
     sta.z j
-    // [8] phi (byte*) print2::at#1 = (const byte*) screen [phi:print2->print2::@1#1] -- pbuz1=pbuc1 
-    lda #<screen
-    sta.z at
-    lda #>screen
-    sta.z at+1
-    // [8] phi (byte) print2::i#2 = (byte) 0 [phi:print2->print2::@1#2] -- vbuz1=vbuc1 
+    // [10] phi (byte*) print2::at#2 = (byte*) print2::at#4 [phi:print2->print2::@1#1] -- register_copy 
+    // [10] phi (byte) print2::i#2 = (byte) 0 [phi:print2->print2::@1#2] -- vbuz1=vbuc1 
     lda #0
     sta.z i
-    // [8] phi (byte*) print2::msg#1 = (const string) main::msg [phi:print2->print2::@1#3] -- pbuz1=pbuc1 
-    lda #<main.msg
-    sta.z msg
-    lda #>main.msg
-    sta.z msg+1
+    // [10] phi (byte*) print2::msg#2 = (byte*) print2::msg#4 [phi:print2->print2::@1#3] -- register_copy 
     jmp __b1
     // print2::@1
   __b1:
-    // [9] if((byte) 0!=*((byte*) print2::msg#1 + (byte) print2::i#2)) goto print2::@2 -- vbuc1_neq_pbuz1_derefidx_vbuz2_then_la1 
+    // [11] if((byte) 0!=*((byte*) print2::msg#2 + (byte) print2::i#2)) goto print2::@2 -- vbuc1_neq_pbuz1_derefidx_vbuz2_then_la1 
     ldy.z i
     lda (msg),y
     cmp #0
@@ -383,71 +431,71 @@ print2: {
     jmp __breturn
     // print2::@return
   __breturn:
-    // [10] return 
+    // [12] return 
     rts
     // print2::@2
   __b2:
-    // [11] (byte*) print_char::at#0 ← (byte*) print2::at#1
-    // [12] (byte) print_char::idx#0 ← (byte) print2::j#2 -- vbuxx=vbuz1 
+    // [13] (byte*) print_char::at#0 ← (byte*) print2::at#2
+    // [14] (byte) print_char::idx#0 ← (byte) print2::j#2 -- vbuxx=vbuz1 
     ldx.z j
-    // [13] (byte) print_char::ch#0 ← *((byte*) print2::msg#1 + (byte) print2::i#2) -- vbuaa=pbuz1_derefidx_vbuz2 
+    // [15] (byte) print_char::ch#0 ← *((byte*) print2::msg#2 + (byte) print2::i#2) -- vbuaa=pbuz1_derefidx_vbuz2 
     ldy.z i
     lda (msg),y
-    // [14] call print_char 
-    // [17] phi from print2::@2 to print_char [phi:print2::@2->print_char]
+    // [16] call print_char 
+    // [19] phi from print2::@2 to print_char [phi:print2::@2->print_char]
   print_char_from___b2:
-    // [17] phi (byte) print_char::idx#1 = (byte) print_char::idx#0 [phi:print2::@2->print_char#0] -- register_copy 
-    // [17] phi (byte*) print_char::at#1 = (byte*) print_char::at#0 [phi:print2::@2->print_char#1] -- register_copy 
-    // [17] phi (byte) print_char::ch#1 = (byte) print_char::ch#0 [phi:print2::@2->print_char#2] -- register_copy 
+    // [19] phi (byte) print_char::idx#1 = (byte) print_char::idx#0 [phi:print2::@2->print_char#0] -- register_copy 
+    // [19] phi (byte*) print_char::at#1 = (byte*) print_char::at#0 [phi:print2::@2->print_char#1] -- register_copy 
+    // [19] phi (byte) print_char::ch#1 = (byte) print_char::ch#0 [phi:print2::@2->print_char#2] -- register_copy 
     jsr print_char
     jmp __b3
     // print2::@3
   __b3:
-    // [15] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2 -- vbuz1=vbuz1_plus_2 
+    // [17] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2 -- vbuz1=vbuz1_plus_2 
     lda.z j
     clc
     adc #2
     sta.z j
-    // [16] (byte) print2::i#1 ← ++ (byte) print2::i#2 -- vbuz1=_inc_vbuz1 
+    // [18] (byte) print2::i#1 ← ++ (byte) print2::i#2 -- vbuz1=_inc_vbuz1 
     inc.z i
-    // [8] phi from print2::@3 to print2::@1 [phi:print2::@3->print2::@1]
+    // [10] phi from print2::@3 to print2::@1 [phi:print2::@3->print2::@1]
   __b1_from___b3:
-    // [8] phi (byte) print2::j#2 = (byte) print2::j#1 [phi:print2::@3->print2::@1#0] -- register_copy 
-    // [8] phi (byte*) print2::at#1 = (byte*) print2::at#1 [phi:print2::@3->print2::@1#1] -- register_copy 
-    // [8] phi (byte) print2::i#2 = (byte) print2::i#1 [phi:print2::@3->print2::@1#2] -- register_copy 
-    // [8] phi (byte*) print2::msg#1 = (byte*) print2::msg#1 [phi:print2::@3->print2::@1#3] -- register_copy 
+    // [10] phi (byte) print2::j#2 = (byte) print2::j#1 [phi:print2::@3->print2::@1#0] -- register_copy 
+    // [10] phi (byte*) print2::at#2 = (byte*) print2::at#2 [phi:print2::@3->print2::@1#1] -- register_copy 
+    // [10] phi (byte) print2::i#2 = (byte) print2::i#1 [phi:print2::@3->print2::@1#2] -- register_copy 
+    // [10] phi (byte*) print2::msg#2 = (byte*) print2::msg#2 [phi:print2::@3->print2::@1#3] -- register_copy 
     jmp __b1
 }
   // print_char
 // print_char(byte* zeropage($fa) at, byte register(X) idx, byte register(A) ch)
 print_char: {
     .label at = $fa
-    // [18] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 -- pbuz1_derefidx_vbuxx=vbuaa 
+    // [20] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 -- pbuz1_derefidx_vbuxx=vbuaa 
     stx.z $ff
     ldy.z $ff
     sta (at),y
     jmp __breturn
     // print_char::@return
   __breturn:
-    // [19] return 
+    // [21] return 
     rts
 }
   // File Data
 
 REGISTER UPLIFT POTENTIAL REGISTERS
-Statement [9] if((byte) 0!=*((byte*) print2::msg#1 + (byte) print2::i#2)) goto print2::@2 [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 ] ( main:2::print2:5 [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 ] ) always clobbers reg byte a 
+Statement [11] if((byte) 0!=*((byte*) print2::msg#2 + (byte) print2::i#2)) goto print2::@2 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] ( main:2::print2:5 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] main:2::print2:7 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] ) always clobbers reg byte a 
 Removing always clobbered register reg byte a as potential for zp[1]:2 [ print2::i#2 print2::i#1 ]
 Removing always clobbered register reg byte a as potential for zp[1]:3 [ print2::j#2 print2::j#1 ]
-Statement [13] (byte) print_char::ch#0 ← *((byte*) print2::msg#1 + (byte) print2::i#2) [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] ( main:2::print2:5 [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] ) always clobbers reg byte a 
-Statement [18] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 [ ] ( main:2::print2:5::print_char:14 [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 ] ) always clobbers reg byte y 
+Statement [15] (byte) print_char::ch#0 ← *((byte*) print2::msg#2 + (byte) print2::i#2) [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] ( main:2::print2:5 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] main:2::print2:7 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] ) always clobbers reg byte a 
+Statement [20] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 [ ] ( main:2::print2:5::print_char:16 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] main:2::print2:7::print_char:16 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] ) always clobbers reg byte y 
 Removing always clobbered register reg byte y as potential for zp[1]:2 [ print2::i#2 print2::i#1 ]
 Removing always clobbered register reg byte y as potential for zp[1]:3 [ print2::j#2 print2::j#1 ]
-Statement [9] if((byte) 0!=*((byte*) print2::msg#1 + (byte) print2::i#2)) goto print2::@2 [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 ] ( main:2::print2:5 [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 ] ) always clobbers reg byte a reg byte y 
-Statement [13] (byte) print_char::ch#0 ← *((byte*) print2::msg#1 + (byte) print2::i#2) [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] ( main:2::print2:5 [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] ) always clobbers reg byte a reg byte y 
-Statement [18] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 [ ] ( main:2::print2:5::print_char:14 [ print2::msg#1 print2::i#2 print2::at#1 print2::j#2 ] ) always clobbers reg byte y 
-Potential registers zp[2]:252 [ print2::msg#1 ] : zp[2]:252 , 
+Statement [11] if((byte) 0!=*((byte*) print2::msg#2 + (byte) print2::i#2)) goto print2::@2 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] ( main:2::print2:5 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] main:2::print2:7 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] ) always clobbers reg byte a reg byte y 
+Statement [15] (byte) print_char::ch#0 ← *((byte*) print2::msg#2 + (byte) print2::i#2) [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] ( main:2::print2:5 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] main:2::print2:7 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 print_char::at#0 print_char::idx#0 print_char::ch#0 ] ) always clobbers reg byte a reg byte y 
+Statement [20] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 [ ] ( main:2::print2:5::print_char:16 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] main:2::print2:7::print_char:16 [ print2::msg#2 print2::i#2 print2::at#2 print2::j#2 ] ) always clobbers reg byte y 
+Potential registers zp[2]:252 [ print2::msg#2 print2::msg#4 ] : zp[2]:252 , 
 Potential registers zp[1]:2 [ print2::i#2 print2::i#1 ] : zp[1]:2 , reg byte x , 
-Potential registers zp[2]:250 [ print2::at#1 ] : zp[2]:250 , 
+Potential registers zp[2]:250 [ print2::at#2 print2::at#4 ] : zp[2]:250 , 
 Potential registers zp[1]:3 [ print2::j#2 print2::j#1 ] : zp[1]:3 , reg byte x , 
 Potential registers reg byte a [ print_char::ch#1 print_char::ch#0 ] : reg byte a , 
 Potential registers zp[2]:250 [ print_char::at#1 print_char::at#0 ] : zp[2]:250 , 
@@ -455,17 +503,17 @@ Potential registers reg byte x [ print_char::idx#1 print_char::idx#0 ] : reg byt
 
 REGISTER UPLIFT SCOPES
 Uplift Scope [print_char] 35: reg byte a [ print_char::ch#1 print_char::ch#0 ] 24: reg byte x [ print_char::idx#1 print_char::idx#0 ] 20.33: zp[2]:250 [ print_char::at#1 print_char::at#0 ] 
-Uplift Scope [print2] 28.29: zp[1]:2 [ print2::i#2 print2::i#1 ] 16.5: zp[1]:3 [ print2::j#2 print2::j#1 ] 5.5: zp[2]:252 [ print2::msg#1 ] 4.12: zp[2]:250 [ print2::at#1 ] 
+Uplift Scope [print2] 28.29: zp[1]:2 [ print2::i#2 print2::i#1 ] 16.5: zp[1]:3 [ print2::j#2 print2::j#1 ] 7.75: zp[2]:252 [ print2::msg#2 print2::msg#4 ] 6.38: zp[2]:250 [ print2::at#2 print2::at#4 ] 
 Uplift Scope [main] 
 Uplift Scope [] 
 
-Uplifting [print_char] best 848 combination reg byte a [ print_char::ch#1 print_char::ch#0 ] reg byte x [ print_char::idx#1 print_char::idx#0 ] zp[2]:250 [ print_char::at#1 print_char::at#0 ] 
-Uplifting [print2] best 728 combination zp[1]:2 [ print2::i#2 print2::i#1 ] reg byte x [ print2::j#2 print2::j#1 ] zp[2]:252 [ print2::msg#1 ] zp[2]:250 [ print2::at#1 ] 
-Uplifting [main] best 728 combination 
-Uplifting [] best 728 combination 
+Uplifting [print_char] best 697 combination reg byte a [ print_char::ch#1 print_char::ch#0 ] reg byte x [ print_char::idx#1 print_char::idx#0 ] zp[2]:250 [ print_char::at#1 print_char::at#0 ] 
+Uplifting [print2] best 577 combination zp[1]:2 [ print2::i#2 print2::i#1 ] reg byte x [ print2::j#2 print2::j#1 ] zp[2]:252 [ print2::msg#2 print2::msg#4 ] zp[2]:250 [ print2::at#2 print2::at#4 ] 
+Uplifting [main] best 577 combination 
+Uplifting [] best 577 combination 
 Attempting to uplift remaining variables inzp[1]:2 [ print2::i#2 print2::i#1 ]
-Uplifting [print2] best 728 combination zp[1]:2 [ print2::i#2 print2::i#1 ] 
-Coalescing zero page register [ zp[2]:250 [ print2::at#1 ] ] with [ zp[2]:250 [ print_char::at#1 print_char::at#0 ] ] - score: 1
+Uplifting [print2] best 577 combination zp[1]:2 [ print2::i#2 print2::i#1 ] 
+Coalescing zero page register [ zp[2]:250 [ print2::at#2 print2::at#4 ] ] with [ zp[2]:250 [ print_char::at#1 print_char::at#0 ] ] - score: 1
 
 ASSEMBLER BEFORE OPTIMIZATION
   // File Comments
@@ -495,16 +543,47 @@ __bend:
   // main
 main: {
     // [5] call print2 
-    // [7] phi from main to print2 [phi:main->print2]
+    // [9] phi from main to print2 [phi:main->print2]
   print2_from_main:
+    // [9] phi (byte*) print2::at#4 = (const byte*) screen [phi:main->print2#0] -- pbuz1=pbuc1 
+    lda #<screen
+    sta.z print2.at
+    lda #>screen
+    sta.z print2.at+1
+    // [9] phi (byte*) print2::msg#4 = (const string) main::msg [phi:main->print2#1] -- pbuz1=pbuc1 
+    lda #<msg
+    sta.z print2.msg
+    lda #>msg
+    sta.z print2.msg+1
+    jsr print2
+    // [6] phi from main to main::@1 [phi:main->main::@1]
+  __b1_from_main:
+    jmp __b1
+    // main::@1
+  __b1:
+    // [7] call print2 
+    // [9] phi from main::@1 to print2 [phi:main::@1->print2]
+  print2_from___b1:
+    // [9] phi (byte*) print2::at#4 = (const byte*) screen+(byte) $50 [phi:main::@1->print2#0] -- pbuz1=pbuc1 
+    lda #<screen+$50
+    sta.z print2.at
+    lda #>screen+$50
+    sta.z print2.at+1
+    // [9] phi (byte*) print2::msg#4 = (const string) main::msg1 [phi:main::@1->print2#1] -- pbuz1=pbuc1 
+    lda #<msg1
+    sta.z print2.msg
+    lda #>msg1
+    sta.z print2.msg+1
     jsr print2
     jmp __breturn
     // main::@return
   __breturn:
-    // [6] return 
+    // [8] return 
     rts
     msg: .text "hello"
     .byte 0
+    msg1: .text "world"
+    .byte 0
 }
   // print2
 // print2(byte* zeropage($fa) at, byte* zeropage($fc) msg)
@@ -512,27 +591,19 @@ print2: {
     .label i = 2
     .label msg = $fc
     .label at = $fa
-    // [8] phi from print2 to print2::@1 [phi:print2->print2::@1]
+    // [10] phi from print2 to print2::@1 [phi:print2->print2::@1]
   __b1_from_print2:
-    // [8] phi (byte) print2::j#2 = (byte) 0 [phi:print2->print2::@1#0] -- vbuxx=vbuc1 
+    // [10] phi (byte) print2::j#2 = (byte) 0 [phi:print2->print2::@1#0] -- vbuxx=vbuc1 
     ldx #0
-    // [8] phi (byte*) print2::at#1 = (const byte*) screen [phi:print2->print2::@1#1] -- pbuz1=pbuc1 
-    lda #<screen
-    sta.z at
-    lda #>screen
-    sta.z at+1
-    // [8] phi (byte) print2::i#2 = (byte) 0 [phi:print2->print2::@1#2] -- vbuz1=vbuc1 
+    // [10] phi (byte*) print2::at#2 = (byte*) print2::at#4 [phi:print2->print2::@1#1] -- register_copy 
+    // [10] phi (byte) print2::i#2 = (byte) 0 [phi:print2->print2::@1#2] -- vbuz1=vbuc1 
     lda #0
     sta.z i
-    // [8] phi (byte*) print2::msg#1 = (const string) main::msg [phi:print2->print2::@1#3] -- pbuz1=pbuc1 
-    lda #<main.msg
-    sta.z msg
-    lda #>main.msg
-    sta.z msg+1
+    // [10] phi (byte*) print2::msg#2 = (byte*) print2::msg#4 [phi:print2->print2::@1#3] -- register_copy 
     jmp __b1
     // print2::@1
   __b1:
-    // [9] if((byte) 0!=*((byte*) print2::msg#1 + (byte) print2::i#2)) goto print2::@2 -- vbuc1_neq_pbuz1_derefidx_vbuz2_then_la1 
+    // [11] if((byte) 0!=*((byte*) print2::msg#2 + (byte) print2::i#2)) goto print2::@2 -- vbuc1_neq_pbuz1_derefidx_vbuz2_then_la1 
     ldy.z i
     lda (msg),y
     cmp #0
@@ -540,50 +611,50 @@ print2: {
     jmp __breturn
     // print2::@return
   __breturn:
-    // [10] return 
+    // [12] return 
     rts
     // print2::@2
   __b2:
-    // [11] (byte*) print_char::at#0 ← (byte*) print2::at#1
-    // [12] (byte) print_char::idx#0 ← (byte) print2::j#2
-    // [13] (byte) print_char::ch#0 ← *((byte*) print2::msg#1 + (byte) print2::i#2) -- vbuaa=pbuz1_derefidx_vbuz2 
+    // [13] (byte*) print_char::at#0 ← (byte*) print2::at#2
+    // [14] (byte) print_char::idx#0 ← (byte) print2::j#2
+    // [15] (byte) print_char::ch#0 ← *((byte*) print2::msg#2 + (byte) print2::i#2) -- vbuaa=pbuz1_derefidx_vbuz2 
     ldy.z i
     lda (msg),y
-    // [14] call print_char 
-    // [17] phi from print2::@2 to print_char [phi:print2::@2->print_char]
+    // [16] call print_char 
+    // [19] phi from print2::@2 to print_char [phi:print2::@2->print_char]
   print_char_from___b2:
-    // [17] phi (byte) print_char::idx#1 = (byte) print_char::idx#0 [phi:print2::@2->print_char#0] -- register_copy 
-    // [17] phi (byte*) print_char::at#1 = (byte*) print_char::at#0 [phi:print2::@2->print_char#1] -- register_copy 
-    // [17] phi (byte) print_char::ch#1 = (byte) print_char::ch#0 [phi:print2::@2->print_char#2] -- register_copy 
+    // [19] phi (byte) print_char::idx#1 = (byte) print_char::idx#0 [phi:print2::@2->print_char#0] -- register_copy 
+    // [19] phi (byte*) print_char::at#1 = (byte*) print_char::at#0 [phi:print2::@2->print_char#1] -- register_copy 
+    // [19] phi (byte) print_char::ch#1 = (byte) print_char::ch#0 [phi:print2::@2->print_char#2] -- register_copy 
     jsr print_char
     jmp __b3
     // print2::@3
   __b3:
-    // [15] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2 -- vbuxx=vbuxx_plus_2 
+    // [17] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2 -- vbuxx=vbuxx_plus_2 
     inx
     inx
-    // [16] (byte) print2::i#1 ← ++ (byte) print2::i#2 -- vbuz1=_inc_vbuz1 
+    // [18] (byte) print2::i#1 ← ++ (byte) print2::i#2 -- vbuz1=_inc_vbuz1 
     inc.z i
-    // [8] phi from print2::@3 to print2::@1 [phi:print2::@3->print2::@1]
+    // [10] phi from print2::@3 to print2::@1 [phi:print2::@3->print2::@1]
   __b1_from___b3:
-    // [8] phi (byte) print2::j#2 = (byte) print2::j#1 [phi:print2::@3->print2::@1#0] -- register_copy 
-    // [8] phi (byte*) print2::at#1 = (byte*) print2::at#1 [phi:print2::@3->print2::@1#1] -- register_copy 
-    // [8] phi (byte) print2::i#2 = (byte) print2::i#1 [phi:print2::@3->print2::@1#2] -- register_copy 
-    // [8] phi (byte*) print2::msg#1 = (byte*) print2::msg#1 [phi:print2::@3->print2::@1#3] -- register_copy 
+    // [10] phi (byte) print2::j#2 = (byte) print2::j#1 [phi:print2::@3->print2::@1#0] -- register_copy 
+    // [10] phi (byte*) print2::at#2 = (byte*) print2::at#2 [phi:print2::@3->print2::@1#1] -- register_copy 
+    // [10] phi (byte) print2::i#2 = (byte) print2::i#1 [phi:print2::@3->print2::@1#2] -- register_copy 
+    // [10] phi (byte*) print2::msg#2 = (byte*) print2::msg#2 [phi:print2::@3->print2::@1#3] -- register_copy 
     jmp __b1
 }
   // print_char
 // print_char(byte* zeropage($fa) at, byte register(X) idx, byte register(A) ch)
 print_char: {
     .label at = $fa
-    // [18] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 -- pbuz1_derefidx_vbuxx=vbuaa 
+    // [20] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 -- pbuz1_derefidx_vbuxx=vbuaa 
     stx.z $ff
     ldy.z $ff
     sta (at),y
     jmp __breturn
     // print_char::@return
   __breturn:
-    // [19] return 
+    // [21] return 
     rts
 }
   // File Data
@@ -591,6 +662,7 @@ print_char: {
 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
@@ -603,9 +675,12 @@ 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 print2_from___b1:
 Succesful ASM optimization Pass5RedundantLabelElimination
 Removing instruction __bend:
 Removing instruction print2_from_main:
+Removing instruction __b1:
 Removing instruction __breturn:
 Removing instruction __b1_from_print2:
 Removing instruction __breturn:
@@ -625,15 +700,18 @@ FINAL SYMBOL TABLE
 (label) @begin
 (label) @end
 (void()) main()
+(label) main::@1
 (label) main::@return
 (const string) main::msg = (string) "hello"
+(const string) main::msg1 = (string) "world"
 (void()) print2((byte*) print2::at , (byte*) print2::msg)
 (label) print2::@1
 (label) print2::@2
 (label) print2::@3
 (label) print2::@return
 (byte*) print2::at !zp[-1]:250
-(byte*) print2::at#1 at !zp[-1]:250 zp[2]:250 4.125
+(byte*) print2::at#2 at !zp[-1]:250 zp[2]:250 4.375
+(byte*) print2::at#4 at !zp[-1]:250 zp[2]:250 2.0
 (byte) print2::i
 (byte) print2::i#1 i zp[1]:2 22.0
 (byte) print2::i#2 i zp[1]:2 6.285714285714286
@@ -641,7 +719,8 @@ FINAL SYMBOL TABLE
 (byte) print2::j#1 reg byte x 11.0
 (byte) print2::j#2 reg byte x 5.5
 (byte*) print2::msg !zp[-1]:252
-(byte*) print2::msg#1 msg !zp[-1]:252 zp[2]:252 5.5
+(byte*) print2::msg#2 msg !zp[-1]:252 zp[2]:252 5.75
+(byte*) print2::msg#4 msg !zp[-1]:252 zp[2]:252 2.0
 (void()) print_char((byte*) print_char::at , (byte) print_char::idx , (byte) print_char::ch)
 (label) print_char::@return
 (byte*) print_char::at !zp[-1]:250
@@ -655,16 +734,16 @@ FINAL SYMBOL TABLE
 (byte) print_char::idx#1 !reg byte x 13.0
 (const byte*) screen = (byte*) 1024
 
-zp[2]:252 [ print2::msg#1 ]
+zp[2]:252 [ print2::msg#2 print2::msg#4 ]
 zp[1]:2 [ print2::i#2 print2::i#1 ]
-zp[2]:250 [ print2::at#1 print_char::at#1 print_char::at#0 ]
+zp[2]:250 [ print2::at#2 print2::at#4 print_char::at#1 print_char::at#0 ]
 reg byte x [ print2::j#2 print2::j#1 ]
 reg byte a [ print_char::ch#1 print_char::ch#0 ]
 reg byte x [ print_char::idx#1 print_char::idx#0 ]
 
 
 FINAL ASSEMBLER
-Score: 647
+Score: 493
 
   // File Comments
 // Test declaring a variable as register on a specific ZP address
@@ -685,14 +764,42 @@ Score: 647
 main: {
     // print2(screen, "hello")
     // [5] call print2 
-    // [7] phi from main to print2 [phi:main->print2]
+    // [9] phi from main to print2 [phi:main->print2]
+    // [9] phi (byte*) print2::at#4 = (const byte*) screen [phi:main->print2#0] -- pbuz1=pbuc1 
+    lda #<screen
+    sta.z print2.at
+    lda #>screen
+    sta.z print2.at+1
+    // [9] phi (byte*) print2::msg#4 = (const string) main::msg [phi:main->print2#1] -- pbuz1=pbuc1 
+    lda #<msg
+    sta.z print2.msg
+    lda #>msg
+    sta.z print2.msg+1
+    jsr print2
+    // [6] phi from main to main::@1 [phi:main->main::@1]
+    // main::@1
+    // print2(screen+80, "world")
+    // [7] call print2 
+    // [9] phi from main::@1 to print2 [phi:main::@1->print2]
+    // [9] phi (byte*) print2::at#4 = (const byte*) screen+(byte) $50 [phi:main::@1->print2#0] -- pbuz1=pbuc1 
+    lda #<screen+$50
+    sta.z print2.at
+    lda #>screen+$50
+    sta.z print2.at+1
+    // [9] phi (byte*) print2::msg#4 = (const string) main::msg1 [phi:main::@1->print2#1] -- pbuz1=pbuc1 
+    lda #<msg1
+    sta.z print2.msg
+    lda #>msg1
+    sta.z print2.msg+1
     jsr print2
     // main::@return
     // }
-    // [6] return 
+    // [8] return 
     rts
     msg: .text "hello"
     .byte 0
+    msg1: .text "world"
+    .byte 0
 }
   // print2
 // print2(byte* zeropage($fa) at, byte* zeropage($fc) msg)
@@ -700,61 +807,53 @@ print2: {
     .label i = 2
     .label msg = $fc
     .label at = $fa
-    // [8] phi from print2 to print2::@1 [phi:print2->print2::@1]
-    // [8] phi (byte) print2::j#2 = (byte) 0 [phi:print2->print2::@1#0] -- vbuxx=vbuc1 
+    // [10] phi from print2 to print2::@1 [phi:print2->print2::@1]
+    // [10] phi (byte) print2::j#2 = (byte) 0 [phi:print2->print2::@1#0] -- vbuxx=vbuc1 
     ldx #0
-    // [8] phi (byte*) print2::at#1 = (const byte*) screen [phi:print2->print2::@1#1] -- pbuz1=pbuc1 
-    lda #<screen
-    sta.z at
-    lda #>screen
-    sta.z at+1
-    // [8] phi (byte) print2::i#2 = (byte) 0 [phi:print2->print2::@1#2] -- vbuz1=vbuc1 
+    // [10] phi (byte*) print2::at#2 = (byte*) print2::at#4 [phi:print2->print2::@1#1] -- register_copy 
+    // [10] phi (byte) print2::i#2 = (byte) 0 [phi:print2->print2::@1#2] -- vbuz1=vbuc1 
     txa
     sta.z i
-    // [8] phi (byte*) print2::msg#1 = (const string) main::msg [phi:print2->print2::@1#3] -- pbuz1=pbuc1 
-    lda #<main.msg
-    sta.z msg
-    lda #>main.msg
-    sta.z msg+1
+    // [10] phi (byte*) print2::msg#2 = (byte*) print2::msg#4 [phi:print2->print2::@1#3] -- register_copy 
     // print2::@1
   __b1:
     // for(byte i=0; msg[i]; i++)
-    // [9] if((byte) 0!=*((byte*) print2::msg#1 + (byte) print2::i#2)) goto print2::@2 -- vbuc1_neq_pbuz1_derefidx_vbuz2_then_la1 
+    // [11] if((byte) 0!=*((byte*) print2::msg#2 + (byte) print2::i#2)) goto print2::@2 -- vbuc1_neq_pbuz1_derefidx_vbuz2_then_la1 
     ldy.z i
     lda (msg),y
     cmp #0
     bne __b2
     // print2::@return
     // }
-    // [10] return 
+    // [12] return 
     rts
     // print2::@2
   __b2:
     // print_char(at, j, msg[i])
-    // [11] (byte*) print_char::at#0 ← (byte*) print2::at#1
-    // [12] (byte) print_char::idx#0 ← (byte) print2::j#2
-    // [13] (byte) print_char::ch#0 ← *((byte*) print2::msg#1 + (byte) print2::i#2) -- vbuaa=pbuz1_derefidx_vbuz2 
+    // [13] (byte*) print_char::at#0 ← (byte*) print2::at#2
+    // [14] (byte) print_char::idx#0 ← (byte) print2::j#2
+    // [15] (byte) print_char::ch#0 ← *((byte*) print2::msg#2 + (byte) print2::i#2) -- vbuaa=pbuz1_derefidx_vbuz2 
     ldy.z i
     lda (msg),y
-    // [14] call print_char 
-    // [17] phi from print2::@2 to print_char [phi:print2::@2->print_char]
-    // [17] phi (byte) print_char::idx#1 = (byte) print_char::idx#0 [phi:print2::@2->print_char#0] -- register_copy 
-    // [17] phi (byte*) print_char::at#1 = (byte*) print_char::at#0 [phi:print2::@2->print_char#1] -- register_copy 
-    // [17] phi (byte) print_char::ch#1 = (byte) print_char::ch#0 [phi:print2::@2->print_char#2] -- register_copy 
+    // [16] call print_char 
+    // [19] phi from print2::@2 to print_char [phi:print2::@2->print_char]
+    // [19] phi (byte) print_char::idx#1 = (byte) print_char::idx#0 [phi:print2::@2->print_char#0] -- register_copy 
+    // [19] phi (byte*) print_char::at#1 = (byte*) print_char::at#0 [phi:print2::@2->print_char#1] -- register_copy 
+    // [19] phi (byte) print_char::ch#1 = (byte) print_char::ch#0 [phi:print2::@2->print_char#2] -- register_copy 
     jsr print_char
     // print2::@3
     // j += 2
-    // [15] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2 -- vbuxx=vbuxx_plus_2 
+    // [17] (byte) print2::j#1 ← (byte) print2::j#2 + (byte) 2 -- vbuxx=vbuxx_plus_2 
     inx
     inx
     // for(byte i=0; msg[i]; i++)
-    // [16] (byte) print2::i#1 ← ++ (byte) print2::i#2 -- vbuz1=_inc_vbuz1 
+    // [18] (byte) print2::i#1 ← ++ (byte) print2::i#2 -- vbuz1=_inc_vbuz1 
     inc.z i
-    // [8] phi from print2::@3 to print2::@1 [phi:print2::@3->print2::@1]
-    // [8] phi (byte) print2::j#2 = (byte) print2::j#1 [phi:print2::@3->print2::@1#0] -- register_copy 
-    // [8] phi (byte*) print2::at#1 = (byte*) print2::at#1 [phi:print2::@3->print2::@1#1] -- register_copy 
-    // [8] phi (byte) print2::i#2 = (byte) print2::i#1 [phi:print2::@3->print2::@1#2] -- register_copy 
-    // [8] phi (byte*) print2::msg#1 = (byte*) print2::msg#1 [phi:print2::@3->print2::@1#3] -- register_copy 
+    // [10] phi from print2::@3 to print2::@1 [phi:print2::@3->print2::@1]
+    // [10] phi (byte) print2::j#2 = (byte) print2::j#1 [phi:print2::@3->print2::@1#0] -- register_copy 
+    // [10] phi (byte*) print2::at#2 = (byte*) print2::at#2 [phi:print2::@3->print2::@1#1] -- register_copy 
+    // [10] phi (byte) print2::i#2 = (byte) print2::i#1 [phi:print2::@3->print2::@1#2] -- register_copy 
+    // [10] phi (byte*) print2::msg#2 = (byte*) print2::msg#2 [phi:print2::@3->print2::@1#3] -- register_copy 
     jmp __b1
 }
   // print_char
@@ -762,13 +861,13 @@ print2: {
 print_char: {
     .label at = $fa
     // at[idx] = ch
-    // [18] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 -- pbuz1_derefidx_vbuxx=vbuaa 
+    // [20] *((byte*) print_char::at#1 + (byte) print_char::idx#1) ← (byte) print_char::ch#1 -- pbuz1_derefidx_vbuxx=vbuaa 
     stx.z $ff
     ldy.z $ff
     sta (at),y
     // print_char::@return
     // }
-    // [19] return 
+    // [21] return 
     rts
 }
   // File Data
diff --git a/src/test/ref/var-register-zp-3.sym b/src/test/ref/var-register-zp-3.sym
index 13690ef3b..d4a12d66e 100644
--- a/src/test/ref/var-register-zp-3.sym
+++ b/src/test/ref/var-register-zp-3.sym
@@ -2,15 +2,18 @@
 (label) @begin
 (label) @end
 (void()) main()
+(label) main::@1
 (label) main::@return
 (const string) main::msg = (string) "hello"
+(const string) main::msg1 = (string) "world"
 (void()) print2((byte*) print2::at , (byte*) print2::msg)
 (label) print2::@1
 (label) print2::@2
 (label) print2::@3
 (label) print2::@return
 (byte*) print2::at !zp[-1]:250
-(byte*) print2::at#1 at !zp[-1]:250 zp[2]:250 4.125
+(byte*) print2::at#2 at !zp[-1]:250 zp[2]:250 4.375
+(byte*) print2::at#4 at !zp[-1]:250 zp[2]:250 2.0
 (byte) print2::i
 (byte) print2::i#1 i zp[1]:2 22.0
 (byte) print2::i#2 i zp[1]:2 6.285714285714286
@@ -18,7 +21,8 @@
 (byte) print2::j#1 reg byte x 11.0
 (byte) print2::j#2 reg byte x 5.5
 (byte*) print2::msg !zp[-1]:252
-(byte*) print2::msg#1 msg !zp[-1]:252 zp[2]:252 5.5
+(byte*) print2::msg#2 msg !zp[-1]:252 zp[2]:252 5.75
+(byte*) print2::msg#4 msg !zp[-1]:252 zp[2]:252 2.0
 (void()) print_char((byte*) print_char::at , (byte) print_char::idx , (byte) print_char::ch)
 (label) print_char::@return
 (byte*) print_char::at !zp[-1]:250
@@ -32,9 +36,9 @@
 (byte) print_char::idx#1 !reg byte x 13.0
 (const byte*) screen = (byte*) 1024
 
-zp[2]:252 [ print2::msg#1 ]
+zp[2]:252 [ print2::msg#2 print2::msg#4 ]
 zp[1]:2 [ print2::i#2 print2::i#1 ]
-zp[2]:250 [ print2::at#1 print_char::at#1 print_char::at#0 ]
+zp[2]:250 [ print2::at#2 print2::at#4 print_char::at#1 print_char::at#0 ]
 reg byte x [ print2::j#2 print2::j#1 ]
 reg byte a [ print_char::ch#1 print_char::ch#0 ]
 reg byte x [ print_char::idx#1 print_char::idx#0 ]