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@ -0,0 +1,444 @@
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PARSING src/test/java/dk/camelot64/kickc/test/kc/const-word-pointer.kc
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// Test a constant word pointers (pointing to a word placed on zeropage).
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// The result when running is "CML!" on the screen.
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void main () {
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byte* screen = $400;
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word w = $0d03;
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word* wp = &w;
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screen[0] = <*wp;
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screen[1] = >*wp;
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*wp = $210c;
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screen[2] = <*wp;
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screen[3] = >*wp;
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}
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SYMBOLS
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(label) @1
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(label) @begin
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(label) @end
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(void()) main()
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(word*~) main::$0
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(byte~) main::$1
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(byte~) main::$2
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(byte~) main::$3
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(byte~) main::$4
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(label) main::@return
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(byte*) main::screen
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(word) main::w
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(word*) main::wp
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Promoting word/signed word/dword/signed dword to byte* in main::screen ← ((byte*)) 1024
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INITIAL CONTROL FLOW GRAPH
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@begin: scope:[] from
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to:@1
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main: scope:[main] from
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(byte*) main::screen ← ((byte*)) (word/signed word/dword/signed dword) 1024
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(word) main::w ← (word/signed word/dword/signed dword) 3331
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(word*~) main::$0 ← & (word) main::w
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(word*) main::wp ← (word*~) main::$0
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(byte~) main::$1 ← < *((word*) main::wp)
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*((byte*) main::screen + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte~) main::$1
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(byte~) main::$2 ← > *((word*) main::wp)
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*((byte*) main::screen + (byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte~) main::$2
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*((word*) main::wp) ← (word/signed word/dword/signed dword) 8460
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(byte~) main::$3 ← < *((word*) main::wp)
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*((byte*) main::screen + (byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte~) main::$3
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(byte~) main::$4 ← > *((word*) main::wp)
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*((byte*) main::screen + (byte/signed byte/word/signed word/dword/signed dword) 3) ← (byte~) main::$4
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to:main::@return
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main::@return: scope:[main] from main
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return
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to:@return
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@1: scope:[] from @begin
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call main
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to:@end
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@end: scope:[] from @1
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PROCEDURE MODIFY VARIABLE ANALYSIS
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Completing Phi functions...
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CONTROL FLOW GRAPH SSA WITH ASSIGNMENT CALL & RETURN
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@begin: scope:[] from
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to:@1
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main: scope:[main] from @1
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(byte*) main::screen#0 ← ((byte*)) (word/signed word/dword/signed dword) 1024
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(word) main::w#0 ← (word/signed word/dword/signed dword) 3331
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(word*~) main::$0 ← & (word) main::w#0
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(word*) main::wp#0 ← (word*~) main::$0
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(byte~) main::$1 ← < *((word*) main::wp#0)
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte~) main::$1
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(byte~) main::$2 ← > *((word*) main::wp#0)
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte~) main::$2
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*((word*) main::wp#0) ← (word/signed word/dword/signed dword) 8460
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(byte~) main::$3 ← < *((word*) main::wp#0)
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte~) main::$3
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(byte~) main::$4 ← > *((word*) main::wp#0)
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 3) ← (byte~) main::$4
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to:main::@return
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main::@return: scope:[main] from main
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return
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to:@return
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@1: scope:[] from @begin
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call main param-assignment
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to:@2
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@2: scope:[] from @1
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to:@end
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@end: scope:[] from @2
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SYMBOL TABLE SSA
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(label) @1
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(label) @2
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(label) @begin
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(label) @end
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(void()) main()
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(word*~) main::$0
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(byte~) main::$1
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(byte~) main::$2
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(byte~) main::$3
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(byte~) main::$4
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(label) main::@return
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(byte*) main::screen
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(byte*) main::screen#0
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(word) main::w
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(word) main::w#0
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(word*) main::wp
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(word*) main::wp#0
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OPTIMIZING CONTROL FLOW GRAPH
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Culled Empty Block (label) @2
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Succesful SSA optimization Pass2CullEmptyBlocks
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Alias (word*) main::wp#0 = (word*~) main::$0
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Succesful SSA optimization Pass2AliasElimination
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Constant (const byte*) main::screen#0 = ((byte*))1024
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Constant (const word*) main::wp#0 = &main::w#0
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Succesful SSA optimization Pass2ConstantIdentification
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Consolidated array index constant in *(main::screen#0+0)
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Consolidated array index constant in *(main::screen#0+1)
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Consolidated array index constant in *(main::screen#0+2)
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Consolidated array index constant in *(main::screen#0+3)
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Succesful SSA optimization Pass2ConstantAdditionElimination
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OPTIMIZING CONTROL FLOW GRAPH
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Block Sequence Planned @begin @1 @end main main::@return
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Block Sequence Planned @begin @1 @end main main::@return
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Adding NOP phi() at start of @begin
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Adding NOP phi() at start of @1
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Adding NOP phi() at start of @end
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CALL GRAPH
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Calls in [] to main:2
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Propagating live ranges...
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Propagating live ranges...
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Created 0 initial phi equivalence classes
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Coalesced down to 0 phi equivalence classes
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Block Sequence Planned @begin @1 @end main main::@return
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Adding NOP phi() at start of @begin
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Adding NOP phi() at start of @1
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Adding NOP phi() at start of @end
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Propagating live ranges...
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Propagating live ranges...
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FINAL CONTROL FLOW GRAPH
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@begin: scope:[] from
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[0] phi() [ ] ( )
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to:@1
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@1: scope:[] from @begin
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[1] phi() [ ] ( )
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[2] call main param-assignment [ ] ( )
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to:@end
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@end: scope:[] from @1
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[3] phi() [ ] ( )
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main: scope:[main] from @1
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[4] (word) main::w#0 ← (word/signed word/dword/signed dword) 3331 [ ] ( main:2 [ ] )
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[5] (byte~) main::$1 ← < *((const word*) main::wp#0) [ main::$1 ] ( main:2 [ main::$1 ] )
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[6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte~) main::$1 [ ] ( main:2 [ ] )
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[7] (byte~) main::$2 ← > *((const word*) main::wp#0) [ main::$2 ] ( main:2 [ main::$2 ] )
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[8] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte~) main::$2 [ ] ( main:2 [ ] )
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[9] *((const word*) main::wp#0) ← (word/signed word/dword/signed dword) 8460 [ ] ( main:2 [ ] )
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[10] (byte~) main::$3 ← < *((const word*) main::wp#0) [ main::$3 ] ( main:2 [ main::$3 ] )
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[11] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte~) main::$3 [ ] ( main:2 [ ] )
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[12] (byte~) main::$4 ← > *((const word*) main::wp#0) [ main::$4 ] ( main:2 [ main::$4 ] )
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[13] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 3) ← (byte~) main::$4 [ ] ( main:2 [ ] )
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to:main::@return
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main::@return: scope:[main] from main
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[14] return [ ] ( main:2 [ ] )
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to:@return
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DOMINATORS
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@begin dominated by @begin
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@1 dominated by @1 @begin
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@end dominated by @1 @begin @end
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main dominated by @1 @begin main
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main::@return dominated by main::@return @1 @begin main
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NATURAL LOOPS
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NATURAL LOOPS WITH DEPTH
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Found 0 loops in scope []
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Found 0 loops in scope [main]
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VARIABLE REGISTER WEIGHTS
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(void()) main()
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(byte~) main::$1 4.0
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(byte~) main::$2 4.0
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(byte~) main::$3 4.0
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(byte~) main::$4 4.0
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(byte*) main::screen
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(word) main::w
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(word) main::w#0 20.0
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(word*) main::wp
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Initial phi equivalence classes
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Added variable main::w#0 to zero page equivalence class [ main::w#0 ]
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Added variable main::$1 to zero page equivalence class [ main::$1 ]
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Added variable main::$2 to zero page equivalence class [ main::$2 ]
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Added variable main::$3 to zero page equivalence class [ main::$3 ]
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Added variable main::$4 to zero page equivalence class [ main::$4 ]
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Complete equivalence classes
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[ main::w#0 ]
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[ main::$1 ]
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[ main::$2 ]
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[ main::$3 ]
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[ main::$4 ]
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Allocated zp ZP_WORD:2 [ main::w#0 ]
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Allocated zp ZP_BYTE:4 [ main::$1 ]
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Allocated zp ZP_BYTE:5 [ main::$2 ]
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Allocated zp ZP_BYTE:6 [ main::$3 ]
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Allocated zp ZP_BYTE:7 [ main::$4 ]
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INITIAL ASM
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//SEG0 Basic Upstart
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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//SEG1 Global Constants & labels
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//SEG2 @begin
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bbegin:
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//SEG3 [1] phi from @begin to @1 [phi:@begin->@1]
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b1_from_bbegin:
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jmp b1
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//SEG4 @1
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b1:
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//SEG5 [2] call main param-assignment [ ] ( )
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jsr main
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//SEG6 [3] phi from @1 to @end [phi:@1->@end]
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bend_from_b1:
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jmp bend
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//SEG7 @end
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bend:
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//SEG8 main
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main: {
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.label screen = $400
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.label wp = w
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.label _1 = 4
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.label _2 = 5
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.label _3 = 6
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.label _4 = 7
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.label w = 2
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//SEG9 [4] (word) main::w#0 ← (word/signed word/dword/signed dword) 3331 [ ] ( main:2 [ ] ) -- vwuz1=vwuc1
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lda #<$d03
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sta w
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lda #>$d03
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sta w+1
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//SEG10 [5] (byte~) main::$1 ← < *((const word*) main::wp#0) [ main::$1 ] ( main:2 [ main::$1 ] ) -- vbuz1=_lo__deref_pwuc1
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lda wp
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sta _1
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//SEG11 [6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte~) main::$1 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuz1
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lda _1
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sta screen+0
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//SEG12 [7] (byte~) main::$2 ← > *((const word*) main::wp#0) [ main::$2 ] ( main:2 [ main::$2 ] ) -- vbuz1=_hi__deref_pwuc1
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lda wp+1
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sta _2
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//SEG13 [8] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte~) main::$2 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuz1
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lda _2
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sta screen+1
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//SEG14 [9] *((const word*) main::wp#0) ← (word/signed word/dword/signed dword) 8460 [ ] ( main:2 [ ] ) -- _deref_pwuc1=vwuc2
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lda #<$210c
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sta wp
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lda #>$210c
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sta wp+1
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//SEG15 [10] (byte~) main::$3 ← < *((const word*) main::wp#0) [ main::$3 ] ( main:2 [ main::$3 ] ) -- vbuz1=_lo__deref_pwuc1
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lda wp
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sta _3
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//SEG16 [11] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte~) main::$3 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuz1
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lda _3
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sta screen+2
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//SEG17 [12] (byte~) main::$4 ← > *((const word*) main::wp#0) [ main::$4 ] ( main:2 [ main::$4 ] ) -- vbuz1=_hi__deref_pwuc1
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lda wp+1
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sta _4
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//SEG18 [13] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 3) ← (byte~) main::$4 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuz1
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lda _4
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sta screen+3
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jmp breturn
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//SEG19 main::@return
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breturn:
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//SEG20 [14] return [ ] ( main:2 [ ] )
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rts
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}
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [4] (word) main::w#0 ← (word/signed word/dword/signed dword) 3331 [ ] ( main:2 [ ] ) always clobbers reg byte a
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Statement [9] *((const word*) main::wp#0) ← (word/signed word/dword/signed dword) 8460 [ ] ( main:2 [ ] ) always clobbers reg byte a
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Potential registers zp ZP_WORD:2 [ main::w#0 ] : zp ZP_WORD:2 ,
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Potential registers zp ZP_BYTE:4 [ main::$1 ] : zp ZP_BYTE:4 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp ZP_BYTE:5 [ main::$2 ] : zp ZP_BYTE:5 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp ZP_BYTE:6 [ main::$3 ] : zp ZP_BYTE:6 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp ZP_BYTE:7 [ main::$4 ] : zp ZP_BYTE:7 , reg byte a , reg byte x , reg byte y ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [main] 20: zp ZP_WORD:2 [ main::w#0 ] 4: zp ZP_BYTE:4 [ main::$1 ] 4: zp ZP_BYTE:5 [ main::$2 ] 4: zp ZP_BYTE:6 [ main::$3 ] 4: zp ZP_BYTE:7 [ main::$4 ]
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Uplift Scope []
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Uplifting [main] best 75 combination zp ZP_WORD:2 [ main::w#0 ] reg byte a [ main::$1 ] reg byte a [ main::$2 ] reg byte a [ main::$3 ] reg byte a [ main::$4 ]
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Limited combination testing to 100 combinations of 256 possible.
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Uplifting [] best 75 combination
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ASSEMBLER BEFORE OPTIMIZATION
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//SEG0 Basic Upstart
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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//SEG1 Global Constants & labels
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//SEG2 @begin
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bbegin:
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//SEG3 [1] phi from @begin to @1 [phi:@begin->@1]
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b1_from_bbegin:
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jmp b1
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//SEG4 @1
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b1:
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//SEG5 [2] call main param-assignment [ ] ( )
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jsr main
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//SEG6 [3] phi from @1 to @end [phi:@1->@end]
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bend_from_b1:
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jmp bend
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//SEG7 @end
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bend:
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//SEG8 main
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main: {
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.label screen = $400
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.label wp = w
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.label w = 2
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//SEG9 [4] (word) main::w#0 ← (word/signed word/dword/signed dword) 3331 [ ] ( main:2 [ ] ) -- vwuz1=vwuc1
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lda #<$d03
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sta w
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lda #>$d03
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sta w+1
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//SEG10 [5] (byte~) main::$1 ← < *((const word*) main::wp#0) [ main::$1 ] ( main:2 [ main::$1 ] ) -- vbuaa=_lo__deref_pwuc1
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lda wp
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//SEG11 [6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte~) main::$1 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuaa
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sta screen+0
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//SEG12 [7] (byte~) main::$2 ← > *((const word*) main::wp#0) [ main::$2 ] ( main:2 [ main::$2 ] ) -- vbuaa=_hi__deref_pwuc1
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lda wp+1
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//SEG13 [8] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte~) main::$2 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuaa
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sta screen+1
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//SEG14 [9] *((const word*) main::wp#0) ← (word/signed word/dword/signed dword) 8460 [ ] ( main:2 [ ] ) -- _deref_pwuc1=vwuc2
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lda #<$210c
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sta wp
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lda #>$210c
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sta wp+1
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//SEG15 [10] (byte~) main::$3 ← < *((const word*) main::wp#0) [ main::$3 ] ( main:2 [ main::$3 ] ) -- vbuaa=_lo__deref_pwuc1
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lda wp
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//SEG16 [11] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte~) main::$3 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuaa
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sta screen+2
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//SEG17 [12] (byte~) main::$4 ← > *((const word*) main::wp#0) [ main::$4 ] ( main:2 [ main::$4 ] ) -- vbuaa=_hi__deref_pwuc1
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lda wp+1
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//SEG18 [13] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 3) ← (byte~) main::$4 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuaa
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sta screen+3
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jmp breturn
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//SEG19 main::@return
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breturn:
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//SEG20 [14] return [ ] ( main:2 [ ] )
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rts
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}
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ASSEMBLER OPTIMIZATIONS
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Removing instruction jmp b1
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Removing instruction jmp bend
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Removing instruction jmp breturn
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Succesful ASM optimization Pass5NextJumpElimination
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Removing instruction bbegin:
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Removing instruction b1_from_bbegin:
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Removing instruction bend_from_b1:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction b1:
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Removing instruction bend:
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Removing instruction breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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FINAL SYMBOL TABLE
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(label) @1
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(label) @begin
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(label) @end
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(void()) main()
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(byte~) main::$1 reg byte a 4.0
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(byte~) main::$2 reg byte a 4.0
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(byte~) main::$3 reg byte a 4.0
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(byte~) main::$4 reg byte a 4.0
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(label) main::@return
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(byte*) main::screen
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(const byte*) main::screen#0 screen = ((byte*))(word/signed word/dword/signed dword) 1024
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(word) main::w
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(word) main::w#0 w zp ZP_WORD:2 20.0
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(word*) main::wp
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(const word*) main::wp#0 wp = &(word) main::w#0
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zp ZP_WORD:2 [ main::w#0 ]
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reg byte a [ main::$1 ]
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reg byte a [ main::$2 ]
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reg byte a [ main::$3 ]
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reg byte a [ main::$4 ]
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|
FINAL ASSEMBLER
|
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|
|
Score: 66
|
|
|
|
|
|
|
|
|
|
//SEG0 Basic Upstart
|
|
|
|
|
.pc = $801 "Basic"
|
|
|
|
|
:BasicUpstart(main)
|
|
|
|
|
.pc = $80d "Program"
|
|
|
|
|
//SEG1 Global Constants & labels
|
|
|
|
|
//SEG2 @begin
|
|
|
|
|
//SEG3 [1] phi from @begin to @1 [phi:@begin->@1]
|
|
|
|
|
//SEG4 @1
|
|
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|
|
//SEG5 [2] call main param-assignment [ ] ( )
|
|
|
|
|
jsr main
|
|
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|
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//SEG6 [3] phi from @1 to @end [phi:@1->@end]
|
|
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|
|
//SEG7 @end
|
|
|
|
|
//SEG8 main
|
|
|
|
|
main: {
|
|
|
|
|
.label screen = $400
|
|
|
|
|
.label wp = w
|
|
|
|
|
.label w = 2
|
|
|
|
|
//SEG9 [4] (word) main::w#0 ← (word/signed word/dword/signed dword) 3331 [ ] ( main:2 [ ] ) -- vwuz1=vwuc1
|
|
|
|
|
lda #<$d03
|
|
|
|
|
sta w
|
|
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|
|
lda #>$d03
|
|
|
|
|
sta w+1
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|
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|
|
//SEG10 [5] (byte~) main::$1 ← < *((const word*) main::wp#0) [ main::$1 ] ( main:2 [ main::$1 ] ) -- vbuaa=_lo__deref_pwuc1
|
|
|
|
|
lda wp
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|
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|
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//SEG11 [6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte~) main::$1 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuaa
|
|
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|
|
sta screen+0
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|
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|
|
//SEG12 [7] (byte~) main::$2 ← > *((const word*) main::wp#0) [ main::$2 ] ( main:2 [ main::$2 ] ) -- vbuaa=_hi__deref_pwuc1
|
|
|
|
|
lda wp+1
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|
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|
//SEG13 [8] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte~) main::$2 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuaa
|
|
|
|
|
sta screen+1
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|
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//SEG14 [9] *((const word*) main::wp#0) ← (word/signed word/dword/signed dword) 8460 [ ] ( main:2 [ ] ) -- _deref_pwuc1=vwuc2
|
|
|
|
|
lda #<$210c
|
|
|
|
|
sta wp
|
|
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|
|
lda #>$210c
|
|
|
|
|
sta wp+1
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|
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|
|
//SEG15 [10] (byte~) main::$3 ← < *((const word*) main::wp#0) [ main::$3 ] ( main:2 [ main::$3 ] ) -- vbuaa=_lo__deref_pwuc1
|
|
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|
|
lda wp
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|
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//SEG16 [11] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte~) main::$3 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuaa
|
|
|
|
|
sta screen+2
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//SEG17 [12] (byte~) main::$4 ← > *((const word*) main::wp#0) [ main::$4 ] ( main:2 [ main::$4 ] ) -- vbuaa=_hi__deref_pwuc1
|
|
|
|
|
lda wp+1
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|
//SEG18 [13] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 3) ← (byte~) main::$4 [ ] ( main:2 [ ] ) -- _deref_pbuc1=vbuaa
|
|
|
|
|
sta screen+3
|
|
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|
|
//SEG19 main::@return
|
|
|
|
|
//SEG20 [14] return [ ] ( main:2 [ ] )
|
|
|
|
|
rts
|
|
|
|
|
}
|
|
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|