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Implemented struct array access rewriting code. Removed "old" struct asm instance code.

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This commit is contained in:
jespergravgaard 2019-06-10 21:24:33 +02:00
parent 5e0b33f2ca
commit c8178378b2
30 changed files with 1683 additions and 114 deletions
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2
src/main/fragment/pssc1_derefidx_vbuxx_mbr_0=vbuaa.asm
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@ -1,2 +0,0 @@
sta {c1},x

2
src/main/fragment/pssc1_derefidx_vbuxx_mbr_1=vbuaa.asm
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@ -1,2 +0,0 @@
sta {c1}+1,x

2
src/main/fragment/pssc1_derefidx_vbuyy_mbr_0=vbuaa.asm
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@ -1,2 +0,0 @@
sta {c1},y

2
src/main/fragment/pssc1_derefidx_vbuyy_mbr_1=vbuaa.asm
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@ -1,2 +0,0 @@
sta {c1}+1,y

1
src/main/fragment/vbuaa=_deref_pssc1_mbr_0.asm
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@ -1 +0,0 @@
lda {c1}

1
src/main/fragment/vbuaa=_deref_pssc1_mbr_1.asm
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@ -1 +0,0 @@
lda {c1}+1

1
src/main/fragment/vbuaa=pssc1_derefidx_vbuxx_mbr_0.asm
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@ -1 +0,0 @@
lda {c1},x

1
src/main/fragment/vbuaa=pssc1_derefidx_vbuxx_mbr_1.asm
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@ -1 +0,0 @@
lda {c1}+1,x

1
src/main/fragment/vbuaa=pssc1_derefidx_vbuyy_mbr_0.asm
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@ -1 +0,0 @@
lda {c1},y

1
src/main/fragment/vbuaa=pssc1_derefidx_vbuyy_mbr_1.asm
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@ -1 +0,0 @@
lda {c1}+1,y

3
src/main/fragment/vssz1=vssf2.asm
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@ -1,3 +0,0 @@
lda #0
sta {z1}
sta {z1}+1

4
src/main/java/dk/camelot64/kickc/Compiler.java
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@ -254,7 +254,6 @@ public class Compiler {
private List<Pass2SsaOptimization> getPass2Optimizations() {
List<Pass2SsaOptimization> optimizations = new ArrayList<>();
optimizations.add(new Pass2FixInlineConstructorsNew(program));
optimizations.add(new PassNAddNumberTypeConversions(program));
optimizations.add(new PassNAddArrayNumberTypeConversions(program));
optimizations.add(new Pass2InlineCast(program));
@ -262,7 +261,6 @@ public class Compiler {
optimizations.add(new PassNFinalizeNumberTypeConversions(program));
optimizations.add(new PassNTypeInference(program));
optimizations.add(new PassNAddTypeConversionAssignment(program));
optimizations.add(new PassNTypeIdSimplification(program));
optimizations.add(new PassNSizeOfSimplification(program));
optimizations.add(new PassNStatementIndices(program));
@ -275,7 +273,7 @@ public class Compiler {
optimizations.add(new Pass2ConditionalJumpSimplification(program));
optimizations.add(new Pass2ConditionalAndOrRewriting(program));
optimizations.add(new PassNAddBooleanCasts(program));
optimizations.add(new PassNStructPointerRewriting(program));
optimizations.add(new Pass2ConditionalJumpSequenceImprovement(program));
optimizations.add(new Pass2ConstantRValueConsolidation(program));
optimizations.add(new Pass2ConstantIdentification(program));

10
src/main/java/dk/camelot64/kickc/fragment/AsmFragmentInstance.java
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@ -95,16 +95,6 @@ public class AsmFragmentInstance {
} else if(boundValue instanceof Label) {
String param = ((Label) boundValue).getLocalName().replace('@', 'b').replace(':', '_').replace("$", "_");
return new AsmParameter(param, false);
} else if(boundValue instanceof StructMemberRef) {
StructMemberRef structMemberRef = (StructMemberRef) boundValue;
StructDefinition structDefinition = program.getScope().getStructDefinition(structMemberRef);
Variable structMember = structDefinition.getMember(structMemberRef.getMemberName());
long memberByteOffset = structDefinition.getMemberByteOffset(structMember);
VariableRef struct = (VariableRef) structMemberRef.getStruct();
Variable structVar = program.getScope().getVariable( struct);
Registers.RegisterZpStruct structRegister = (Registers.RegisterZpStruct) structVar.getAllocation();
// TODO Use STRUCT_OFFSET constants instead of hardcoded constants
return new AsmParameter(AsmFormat.getAsmParamName(structVar, codeScopeRef)+"+"+memberByteOffset,true);
} else {
throw new RuntimeException("Bound Value Type not implemented " + boundValue);
}

21
src/main/java/dk/camelot64/kickc/fragment/AsmFragmentInstanceSpecFactory.java
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@ -303,27 +303,6 @@ public class AsmFragmentInstanceSpecFactory {
String name = "la" + nextLabelIdx++;
bind(name, value);
return name;
} else if(value instanceof StructZero) {
return "vssf" + ((StructZero) value).getTypeStruct().getSizeBytes();
} else if(value instanceof StructMemberRef) {
StructMemberRef structMemberRef = (StructMemberRef) value;
StructDefinition structDefinition = program.getScope().getStructDefinition(structMemberRef);
Variable structMember = structDefinition.getMember(structMemberRef.getMemberName());
long memberByteOffset = structDefinition.getMemberByteOffset(structMember);
RValue struct = structMemberRef.getStruct();
if(struct instanceof VariableRef) {
Variable structVar = program.getScope().getVariable((VariableRef) struct);
if(structVar.getAllocation() instanceof Registers.RegisterZpStruct) {
Registers.RegisterZpStruct structRegister = (Registers.RegisterZpStruct) structVar.getAllocation();
Registers.RegisterZpStructMember memberRegister = structRegister.getMemberRegister(memberByteOffset);
String name = getTypePrefix(structMember.getType()) + getRegisterName(memberRegister);
bind(name, structMemberRef);
return name;
}
} else {
return bind(struct) + "_mbr_" + memberByteOffset;
}
}
throw new RuntimeException("Binding of value type not supported " + value);
}

24
src/main/java/dk/camelot64/kickc/passes/PassNStructPointerRewriting.java
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@ -54,6 +54,30 @@ public class PassNStructPointerRewriting extends Pass2SsaOptimization {
// Replace (*ptr_struct).x with *($1)
programValue.set(new PointerDereferenceSimple(memberAddress.getRef()));
modified.set(true);
} else if(struct instanceof PointerDereferenceIndexed) {
RValue structPointer = ((PointerDereferenceIndexed) struct).getPointer();
// We have a match for ptr_struct[idx].x
SymbolType structType = SymbolTypeInference.inferType(getScope(), struct);
if(!(structType instanceof SymbolTypeStruct)) {
throw new CompileError("Accessing member of a non-struct ", currentStmt.getSource());
}
StructDefinition structDefinition = ((SymbolTypeStruct) structType).getStructDefinition(getScope());
ConstantRef memberOffsetConstant = getMemberOffsetConstant(getScope(), structDefinition, structMemberRef.getMemberName());
SymbolType memberType = SymbolTypeInference.inferType(getScope(), structMemberRef);
getLog().append("Rewriting struct pointer member access " + programValue.get().toString(getProgram()));
// Cast struct pointer to the type of the member
CastValue structTypedPointer = new CastValue(new SymbolTypePointer(memberType), structPointer);
// Create temporary variable to hold pointer to member ($1)
Scope scope = getScope().getScope(currentBlock.getScope());
VariableIntermediate memberAddress = scope.addVariableIntermediate();
memberAddress.setType(new SymbolTypePointer(memberType));
// Add statement $1 = ptr_struct + OFFSET_STRUCT_NAME_MEMBER
stmtIt.previous();
stmtIt.add(new StatementAssignment(memberAddress.getRef(), structTypedPointer, Operators.PLUS, memberOffsetConstant, currentStmt.getSource(), currentStmt.getComments()));
stmtIt.next();
// Replace ptr_struct[idx].x with ($1)[idx]
programValue.set(new PointerDereferenceIndexed(memberAddress.getRef(), ((PointerDereferenceIndexed) struct).getIndex()));
modified.set(true);
}
}
});

12
src/test/java/dk/camelot64/kickc/test/TestPrograms.java
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@ -35,6 +35,16 @@ public class TestPrograms {
public TestPrograms() {
}
@Test
public void testStructPtr8() throws IOException, URISyntaxException {
compileAndCompare("struct-ptr-8");
}
@Test
public void testStructPtr7() throws IOException, URISyntaxException {
compileAndCompare("struct-ptr-7");
}
@Test
public void testStructPtr6() throws IOException, URISyntaxException {
compileAndCompare("struct-ptr-6");
@ -67,7 +77,7 @@ public class TestPrograms {
@Test
public void testStructPtr0() throws IOException, URISyntaxException {
compileAndCompare("struct-ptr-0", log());
compileAndCompare("struct-ptr-0");
}
@Test

21
src/test/kc/struct-ptr-7.kc Normal file
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@ -0,0 +1,21 @@
// Minimal struct - direct (constant) array access
struct Point {
byte x;
byte y;
};
struct Point[2] points;
void main() {
points[0].x = 2;
points[0].y = 3;
points[1].x = 5;
points[1].y = 6;
const byte* SCREEN = 0x0400;
SCREEN[0] = points[0].x;
SCREEN[1] = points[0].y;
SCREEN[3] = points[1].x;
SCREEN[4] = points[1].y;
}

23
src/test/kc/struct-ptr-8.kc Normal file
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@ -0,0 +1,23 @@
// Minimal struct - variable array access
struct Point {
byte x;
byte y;
};
struct Point[2] points;
void main() {
for( byte i: 0..1) {
points[i].x = 2+i;
points[i].y = 3+i;
}
const byte* SCREEN = 0x0400;
byte idx = 0;
for( byte i: 0..1) {
SCREEN[idx++] = points[i].x;
SCREEN[idx++] = points[i].y;
SCREEN[idx++] = ' ';
}
}

5
src/test/ref/struct-ptr-0.asm
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@ -2,6 +2,7 @@
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
.const OFFSET_STRUCT_POINT_Y = 1
main: {
.label SCREEN = $400
.label _5 = 2
@ -18,7 +19,7 @@ main: {
iny
tya
ldy _5
sta points+1,y
sta points+OFFSET_STRUCT_POINT_Y,y
inx
cpx #5
bne b1
@ -29,7 +30,7 @@ main: {
tax
lda points,x
sta SCREEN,y
lda points+1,x
lda points+OFFSET_STRUCT_POINT_Y,x
sta SCREEN+$28,y
iny
cpy #5

8
src/test/ref/struct-ptr-0.cfg
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@ -13,17 +13,17 @@ main: scope:[main] from @1
main::@1: scope:[main] from main main::@1
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
[6] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1
[7] *((const struct Point[4]) points#0 + (byte~) main::$5).x ← (byte) main::i#2
[7] *((byte*)(const struct Point[4]) points#0 + (byte~) main::$5) ← (byte) main::i#2
[8] (byte~) main::$0 ← (byte) main::i#2 + (byte) 1
[9] *((const struct Point[4]) points#0 + (byte~) main::$5).y ← (byte~) main::$0
[9] *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$0
[10] (byte) main::i#1 ← ++ (byte) main::i#2
[11] if((byte) main::i#1!=(byte) 5) goto main::@1
to:main::@2
main::@2: scope:[main] from main::@1 main::@2
[12] (byte) main::i1#2 ← phi( main::@1/(byte) 0 main::@2/(byte) main::i1#1 )
[13] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1
[14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).x
[15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).y
[14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0 + (byte~) main::$7)
[15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7)
[16] (byte) main::i1#1 ← ++ (byte) main::i1#2
[17] if((byte) main::i1#1!=(byte) 5) goto main::@2
to:main::@return

146
src/test/ref/struct-ptr-0.log
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@ -2,6 +2,10 @@ Fixing pointer array-indexing *((struct Point[4]) points + (byte) main::i)
Fixing pointer array-indexing *((struct Point[4]) points + (byte) main::i)
Fixing pointer array-indexing *((struct Point[4]) points + (byte) main::i1)
Fixing pointer array-indexing *((struct Point[4]) points + (byte) main::i1)
Rewriting struct pointer member access *((struct Point[4]) points + (byte~) main::$4).x
Rewriting struct pointer member access *((struct Point[4]) points + (byte~) main::$5).y
Rewriting struct pointer member access *((struct Point[4]) points + (byte~) main::$6).x
Rewriting struct pointer member access *((struct Point[4]) points + (byte~) main::$7).y
Adding pointer type conversion cast (byte*) main::SCREEN in (byte*) main::SCREEN ← (number) $400
Culled Empty Block (label) main::@4
@ -15,10 +19,12 @@ main: scope:[main] from @1
main::@1: scope:[main] from main main::@1
(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@1/(byte) main::i#1 )
(byte~) main::$4 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
*((struct Point[4]) points#0 + (byte~) main::$4).x ← (byte) main::i#2
(byte*) main::$8 ← (byte*)(struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
*((byte*) main::$8 + (byte~) main::$4) ← (byte) main::i#2
(number~) main::$0 ← (byte) main::i#2 + (number) 1
(byte~) main::$5 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
*((struct Point[4]) points#0 + (byte~) main::$5).y ← (number~) main::$0
(byte*) main::$9 ← (byte*)(struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
*((byte*) main::$9 + (byte~) main::$5) ← (number~) main::$0
(byte) main::i#1 ← (byte) main::i#2 + rangenext(0,4)
(bool~) main::$1 ← (byte) main::i#1 != rangelast(0,4)
if((bool~) main::$1) goto main::@1
@ -30,10 +36,12 @@ main::@2: scope:[main] from main::@1
main::@3: scope:[main] from main::@2 main::@3
(byte) main::i1#2 ← phi( main::@2/(byte) main::i1#0 main::@3/(byte) main::i1#1 )
(byte~) main::$6 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
*((byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((struct Point[4]) points#0 + (byte~) main::$6).x
(byte*) main::$10 ← (byte*)(struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
*((byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((byte*) main::$10 + (byte~) main::$6)
(byte*~) main::$2 ← (byte*) main::SCREEN#0 + (number) $28
(byte~) main::$7 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
*((byte*~) main::$2 + (byte) main::i1#2) ← *((struct Point[4]) points#0 + (byte~) main::$7).y
(byte*) main::$11 ← (byte*)(struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
*((byte*~) main::$2 + (byte) main::i1#2) ← *((byte*) main::$11 + (byte~) main::$7)
(byte) main::i1#1 ← (byte) main::i1#2 + rangenext(0,4)
(bool~) main::$3 ← (byte) main::i1#1 != rangelast(0,4)
if((bool~) main::$3) goto main::@3
@ -53,18 +61,24 @@ SYMBOL TABLE SSA
(label) @2
(label) @begin
(label) @end
(const byte) OFFSET_STRUCT_POINT_X = (byte) 0
(const byte) OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(const byte) SIZEOF_STRUCT_POINT = (byte) 2
(void()) main()
(number~) main::$0
(bool~) main::$1
(byte*) main::$10
(byte*) main::$11
(byte*~) main::$2
(bool~) main::$3
(byte~) main::$4
(byte~) main::$5
(byte~) main::$6
(byte~) main::$7
(byte*) main::$8
(byte*) main::$9
(label) main::@1
(label) main::@2
(label) main::@3
@ -96,11 +110,11 @@ Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) $28
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to byte in (unumber~) main::$0 ← (byte) main::i#2 + (byte) 1
Identified duplicate assignment right side [6] (byte~) main::$5 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
Identified duplicate assignment right side [17] (byte~) main::$7 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
Identified duplicate assignment right side [7] (byte~) main::$5 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
Identified duplicate assignment right side [20] (byte~) main::$7 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization Pass2DuplicateRValueIdentification
Simple Condition (bool~) main::$1 [10] if((byte) main::i#1!=rangelast(0,4)) goto main::@1
Simple Condition (bool~) main::$3 [21] if((byte) main::i1#1!=rangelast(0,4)) goto main::@3
Simple Condition (bool~) main::$1 [12] if((byte) main::i#1!=rangelast(0,4)) goto main::@1
Simple Condition (bool~) main::$3 [25] if((byte) main::i1#1!=rangelast(0,4)) goto main::@3
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant right-side identified [0] (struct Point[4]) points#0 ← { fill( 4, 0) }
Successful SSA optimization Pass2ConstantRValueConsolidation
@ -109,10 +123,20 @@ Constant (const byte) main::i#0 = 0
Constant (const byte*) main::SCREEN#0 = (byte*) 1024
Constant (const byte) main::i1#0 = 0
Successful SSA optimization Pass2ConstantIdentification
Resolved ranged next value [8] main::i#1 ← ++ main::i#2 to ++
Resolved ranged comparison value [10] if(main::i#1!=rangelast(0,4)) goto main::@1 to (number) 5
Resolved ranged next value [19] main::i1#1 ← ++ main::i1#2 to ++
Resolved ranged comparison value [21] if(main::i1#1!=rangelast(0,4)) goto main::@3 to (number) 5
Constant value identified (byte*)points#0 in [4] (byte*) main::$8 ← (byte*)(const struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [8] (byte*) main::$9 ← (byte*)(const struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant value identified (byte*)points#0 in [17] (byte*) main::$10 ← (byte*)(const struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [21] (byte*) main::$11 ← (byte*)(const struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantValues
Resolved ranged next value [10] main::i#1 ← ++ main::i#2 to ++
Resolved ranged comparison value [12] if(main::i#1!=rangelast(0,4)) goto main::@1 to (number) 5
Resolved ranged next value [23] main::i1#1 ← ++ main::i1#2 to ++
Resolved ranged comparison value [25] if(main::i1#1!=rangelast(0,4)) goto main::@3 to (number) 5
Simplifying expression containing zero (byte*)points#0 in [4] (byte*) main::$8 ← (byte*)(const struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero (byte*)points#0 in [17] (byte*) main::$10 ← (byte*)(const struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNSimplifyExpressionWithZero
Eliminating unused constant (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNEliminateUnusedVars
Adding number conversion cast (unumber) 5 in if((byte) main::i#1!=(number) 5) goto main::@1
Adding number conversion cast (unumber) 5 in if((byte) main::i1#1!=(number) 5) goto main::@3
Successful SSA optimization PassNAddNumberTypeConversions
@ -125,18 +149,28 @@ Successful SSA optimization PassNFinalizeNumberTypeConversions
Alias (byte~) main::$5 = (byte~) main::$4
Alias (byte~) main::$7 = (byte~) main::$6
Successful SSA optimization Pass2AliasElimination
Constant right-side identified [11] (byte*~) main::$2 ← (const byte*) main::SCREEN#0 + (byte) $28
Constant right-side identified [6] (byte*) main::$9 ← (byte*)(const struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant right-side identified [14] (byte*~) main::$2 ← (const byte*) main::SCREEN#0 + (byte) $28
Constant right-side identified [16] (byte*) main::$11 ← (byte*)(const struct Point[4]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const byte*) main::$8 = (byte*)points#0
Constant (const byte*) main::$9 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Constant (const byte*) main::$10 = (byte*)points#0
Constant (const byte*) main::$2 = main::SCREEN#0+$28
Constant (const byte*) main::$11 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantIdentification
Rewriting multiplication to use shift [1] (byte~) main::$5 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
Rewriting multiplication to use shift [8] (byte~) main::$7 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization Pass2MultiplyToShiftRewriting
Inlining constant with var siblings (const byte) main::i#0
Inlining constant with var siblings (const byte) main::i1#0
Constant inlined main::$2 = (const byte*) main::SCREEN#0+(byte) $28
Constant inlined main::i#0 = (byte) 0
Constant inlined main::i1#0 = (byte) 0
Constant inlined main::$2 = (const byte*) main::SCREEN#0+(byte) $28
Constant inlined main::$9 = (byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Constant inlined main::$10 = (byte*)(const struct Point[4]) points#0
Constant inlined main::$8 = (byte*)(const struct Point[4]) points#0
Constant inlined main::$11 = (byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantInlining
Eliminating unused constant (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization PassNEliminateUnusedVars
@ -181,17 +215,17 @@ main: scope:[main] from @1
main::@1: scope:[main] from main main::@1
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
[6] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1
[7] *((const struct Point[4]) points#0 + (byte~) main::$5).x ← (byte) main::i#2
[7] *((byte*)(const struct Point[4]) points#0 + (byte~) main::$5) ← (byte) main::i#2
[8] (byte~) main::$0 ← (byte) main::i#2 + (byte) 1
[9] *((const struct Point[4]) points#0 + (byte~) main::$5).y ← (byte~) main::$0
[9] *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$0
[10] (byte) main::i#1 ← ++ (byte) main::i#2
[11] if((byte) main::i#1!=(byte) 5) goto main::@1
to:main::@2
main::@2: scope:[main] from main::@1 main::@2
[12] (byte) main::i1#2 ← phi( main::@1/(byte) 0 main::@2/(byte) main::i1#1 )
[13] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1
[14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).x
[15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).y
[14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0 + (byte~) main::$7)
[15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7)
[16] (byte) main::i1#1 ← ++ (byte) main::i1#2
[17] if((byte) main::i1#1!=(byte) 5) goto main::@2
to:main::@return
@ -205,8 +239,8 @@ VARIABLE REGISTER WEIGHTS
(byte) Point::y
(void()) main()
(byte~) main::$0 22.0
(byte~) main::$5 3.6666666666666665
(byte~) main::$7 5.5
(byte~) main::$5 11.0
(byte~) main::$7 16.5
(byte*) main::SCREEN
(byte) main::i
(byte) main::i#1 16.5
@ -242,6 +276,7 @@ INITIAL ASM
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
@ -282,7 +317,7 @@ main: {
lda i
asl
sta _5
//SEG17 [7] *((const struct Point[4]) points#0 + (byte~) main::$5).x ← (byte) main::i#2 -- pssc1_derefidx_vbuz1_mbr_0=vbuz2
//SEG17 [7] *((byte*)(const struct Point[4]) points#0 + (byte~) main::$5) ← (byte) main::i#2 -- pbuc1_derefidx_vbuz1=vbuz2
lda i
ldy _5
sta points,y
@ -290,10 +325,10 @@ main: {
ldy i
iny
sty _0
//SEG19 [9] *((const struct Point[4]) points#0 + (byte~) main::$5).y ← (byte~) main::$0 -- pssc1_derefidx_vbuz1_mbr_1=vbuz2
//SEG19 [9] *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$0 -- pbuc1_derefidx_vbuz1=vbuz2
lda _0
ldy _5
sta points+1,y
sta points+OFFSET_STRUCT_POINT_Y,y
//SEG20 [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
inc i
//SEG21 [11] if((byte) main::i#1!=(byte) 5) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
@ -316,16 +351,16 @@ main: {
lda i1
asl
sta _7
//SEG28 [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).x -- pbuc1_derefidx_vbuz1=pssc2_derefidx_vbuz2_mbr_0
ldx _7
lda points,x
ldx i1
sta SCREEN,x
//SEG29 [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).y -- pbuc1_derefidx_vbuz1=pssc2_derefidx_vbuz2_mbr_1
ldx _7
lda points+1,x
ldx i1
sta SCREEN+$28,x
//SEG28 [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0 + (byte~) main::$7) -- pbuc1_derefidx_vbuz1=pbuc2_derefidx_vbuz2
ldy _7
lda points,y
ldy i1
sta SCREEN,y
//SEG29 [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) -- pbuc1_derefidx_vbuz1=pbuc2_derefidx_vbuz2
ldy _7
lda points+OFFSET_STRUCT_POINT_Y,y
ldy i1
sta SCREEN+$28,y
//SEG30 [16] (byte) main::i1#1 ← ++ (byte) main::i1#2 -- vbuz1=_inc_vbuz1
inc i1
//SEG31 [17] if((byte) main::i1#1!=(byte) 5) goto main::@2 -- vbuz1_neq_vbuc1_then_la1
@ -343,18 +378,18 @@ main: {
REGISTER UPLIFT POTENTIAL REGISTERS
Statement [6] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::$5 ] ( main:2 [ main::i#2 main::$5 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Statement [7] *((const struct Point[4]) points#0 + (byte~) main::$5).x ← (byte) main::i#2 [ main::i#2 main::$5 ] ( main:2 [ main::i#2 main::$5 ] ) always clobbers reg byte a
Statement [7] *((byte*)(const struct Point[4]) points#0 + (byte~) main::$5) ← (byte) main::i#2 [ main::i#2 main::$5 ] ( main:2 [ main::i#2 main::$5 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:4 [ main::$5 ]
Statement [13] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1 [ main::i1#2 main::$7 ] ( main:2 [ main::i1#2 main::$7 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ]
Statement [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).x [ main::i1#2 main::$7 ] ( main:2 [ main::i1#2 main::$7 ] ) always clobbers reg byte a
Statement [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0 + (byte~) main::$7) [ main::i1#2 main::$7 ] ( main:2 [ main::i1#2 main::$7 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:6 [ main::$7 ]
Statement [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).y [ main::i1#2 ] ( main:2 [ main::i1#2 ] ) always clobbers reg byte a
Statement [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) [ main::i1#2 ] ( main:2 [ main::i1#2 ] ) always clobbers reg byte a
Statement [6] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::$5 ] ( main:2 [ main::i#2 main::$5 ] ) always clobbers reg byte a
Statement [7] *((const struct Point[4]) points#0 + (byte~) main::$5).x ← (byte) main::i#2 [ main::i#2 main::$5 ] ( main:2 [ main::i#2 main::$5 ] ) always clobbers reg byte a
Statement [7] *((byte*)(const struct Point[4]) points#0 + (byte~) main::$5) ← (byte) main::i#2 [ main::i#2 main::$5 ] ( main:2 [ main::i#2 main::$5 ] ) always clobbers reg byte a
Statement [13] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1 [ main::i1#2 main::$7 ] ( main:2 [ main::i1#2 main::$7 ] ) always clobbers reg byte a
Statement [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).x [ main::i1#2 main::$7 ] ( main:2 [ main::i1#2 main::$7 ] ) always clobbers reg byte a
Statement [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).y [ main::i1#2 ] ( main:2 [ main::i1#2 ] ) always clobbers reg byte a
Statement [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0 + (byte~) main::$7) [ main::i1#2 main::$7 ] ( main:2 [ main::i1#2 main::$7 ] ) always clobbers reg byte a
Statement [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) [ main::i1#2 ] ( main:2 [ main::i1#2 ] ) always clobbers reg byte a
Potential registers zp ZP_BYTE:2 [ main::i#2 main::i#1 ] : zp ZP_BYTE:2 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ] : zp ZP_BYTE:3 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:4 [ main::$5 ] : zp ZP_BYTE:4 , reg byte x , reg byte y ,
@ -362,7 +397,7 @@ Potential registers zp ZP_BYTE:5 [ main::$0 ] : zp ZP_BYTE:5 , reg byte a , reg
Potential registers zp ZP_BYTE:6 [ main::$7 ] : zp ZP_BYTE:6 , reg byte x , reg byte y ,
REGISTER UPLIFT SCOPES
Uplift Scope [main] 30.25: zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ] 27.5: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 22: zp ZP_BYTE:5 [ main::$0 ] 5.5: zp ZP_BYTE:6 [ main::$7 ] 3.67: zp ZP_BYTE:4 [ main::$5 ]
Uplift Scope [main] 30.25: zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ] 27.5: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 22: zp ZP_BYTE:5 [ main::$0 ] 16.5: zp ZP_BYTE:6 [ main::$7 ] 11: zp ZP_BYTE:4 [ main::$5 ]
Uplift Scope [Point]
Uplift Scope []
@ -382,6 +417,7 @@ ASSEMBLER BEFORE OPTIMIZATION
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
@ -417,7 +453,7 @@ main: {
txa
asl
sta _5
//SEG17 [7] *((const struct Point[4]) points#0 + (byte~) main::$5).x ← (byte) main::i#2 -- pssc1_derefidx_vbuz1_mbr_0=vbuxx
//SEG17 [7] *((byte*)(const struct Point[4]) points#0 + (byte~) main::$5) ← (byte) main::i#2 -- pbuc1_derefidx_vbuz1=vbuxx
ldy _5
txa
sta points,y
@ -425,10 +461,10 @@ main: {
txa
tay
iny
//SEG19 [9] *((const struct Point[4]) points#0 + (byte~) main::$5).y ← (byte~) main::$0 -- pssc1_derefidx_vbuz1_mbr_1=vbuyy
//SEG19 [9] *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$0 -- pbuc1_derefidx_vbuz1=vbuyy
tya
ldy _5
sta points+1,y
sta points+OFFSET_STRUCT_POINT_Y,y
//SEG20 [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
inx
//SEG21 [11] if((byte) main::i#1!=(byte) 5) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
@ -449,11 +485,11 @@ main: {
tya
asl
tax
//SEG28 [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).x -- pbuc1_derefidx_vbuyy=pssc2_derefidx_vbuxx_mbr_0
//SEG28 [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0 + (byte~) main::$7) -- pbuc1_derefidx_vbuyy=pbuc2_derefidx_vbuxx
lda points,x
sta SCREEN,y
//SEG29 [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).y -- pbuc1_derefidx_vbuyy=pssc2_derefidx_vbuxx_mbr_1
lda points+1,x
//SEG29 [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) -- pbuc1_derefidx_vbuyy=pbuc2_derefidx_vbuxx
lda points+OFFSET_STRUCT_POINT_Y,x
sta SCREEN+$28,y
//SEG30 [16] (byte) main::i1#1 ← ++ (byte) main::i1#2 -- vbuyy=_inc_vbuyy
iny
@ -503,12 +539,13 @@ FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(void()) main()
(byte~) main::$0 reg byte y 22.0
(byte~) main::$5 $5 zp ZP_BYTE:2 3.6666666666666665
(byte~) main::$7 reg byte x 5.5
(byte~) main::$5 $5 zp ZP_BYTE:2 11.0
(byte~) main::$7 reg byte x 16.5
(label) main::@1
(label) main::@2
(label) main::@return
@ -540,6 +577,7 @@ Score: 746
:BasicUpstart(main)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
//SEG5 @1
@ -562,7 +600,7 @@ main: {
txa
asl
sta _5
//SEG17 [7] *((const struct Point[4]) points#0 + (byte~) main::$5).x ← (byte) main::i#2 -- pssc1_derefidx_vbuz1_mbr_0=vbuxx
//SEG17 [7] *((byte*)(const struct Point[4]) points#0 + (byte~) main::$5) ← (byte) main::i#2 -- pbuc1_derefidx_vbuz1=vbuxx
tay
txa
sta points,y
@ -570,10 +608,10 @@ main: {
txa
tay
iny
//SEG19 [9] *((const struct Point[4]) points#0 + (byte~) main::$5).y ← (byte~) main::$0 -- pssc1_derefidx_vbuz1_mbr_1=vbuyy
//SEG19 [9] *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$0 -- pbuc1_derefidx_vbuz1=vbuyy
tya
ldy _5
sta points+1,y
sta points+OFFSET_STRUCT_POINT_Y,y
//SEG20 [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
inx
//SEG21 [11] if((byte) main::i#1!=(byte) 5) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
@ -590,11 +628,11 @@ main: {
tya
asl
tax
//SEG28 [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).x -- pbuc1_derefidx_vbuyy=pssc2_derefidx_vbuxx_mbr_0
//SEG28 [14] *((const byte*) main::SCREEN#0 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0 + (byte~) main::$7) -- pbuc1_derefidx_vbuyy=pbuc2_derefidx_vbuxx
lda points,x
sta SCREEN,y
//SEG29 [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((const struct Point[4]) points#0 + (byte~) main::$7).y -- pbuc1_derefidx_vbuyy=pssc2_derefidx_vbuxx_mbr_1
lda points+1,x
//SEG29 [15] *((const byte*) main::SCREEN#0+(byte) $28 + (byte) main::i1#2) ← *((byte*)(const struct Point[4]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) -- pbuc1_derefidx_vbuyy=pbuc2_derefidx_vbuxx
lda points+OFFSET_STRUCT_POINT_Y,x
sta SCREEN+$28,y
//SEG30 [16] (byte) main::i1#1 ← ++ (byte) main::i1#2 -- vbuyy=_inc_vbuyy
iny

5
src/test/ref/struct-ptr-0.sym
View File

@ -1,12 +1,13 @@
(label) @1
(label) @begin
(label) @end
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(void()) main()
(byte~) main::$0 reg byte y 22.0
(byte~) main::$5 $5 zp ZP_BYTE:2 3.6666666666666665
(byte~) main::$7 reg byte x 5.5
(byte~) main::$5 $5 zp ZP_BYTE:2 11.0
(byte~) main::$7 reg byte x 16.5
(label) main::@1
(label) main::@2
(label) main::@return

27
src/test/ref/struct-ptr-7.asm Normal file
View File

@ -0,0 +1,27 @@
// Minimal struct - direct (constant) array access
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
.const SIZEOF_STRUCT_POINT = 2
.const OFFSET_STRUCT_POINT_Y = 1
main: {
.label SCREEN = $400
lda #2
sta points
lda #3
sta points+OFFSET_STRUCT_POINT_Y
lda #5
sta points+1*SIZEOF_STRUCT_POINT
lda #6
sta points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
lda points
sta SCREEN
lda points+OFFSET_STRUCT_POINT_Y
sta SCREEN+1
lda points+1*SIZEOF_STRUCT_POINT
sta SCREEN+3
lda points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
sta SCREEN+4
rts
}
points: .fill 2*2, 0

22
src/test/ref/struct-ptr-7.cfg Normal file
View File

@ -0,0 +1,22 @@
@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] *((byte*)(const struct Point[2]) points#0) ← (byte) 2
[5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3
[6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 5
[7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 6
[8] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point[2]) points#0)
[9] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y)
[10] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT)
[11] *((const byte*) main::SCREEN#0+(byte) 4) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT)
to:main::@return
main::@return: scope:[main] from main
[12] return
to:@return

524
src/test/ref/struct-ptr-7.log Normal file
View File

@ -0,0 +1,524 @@
Fixing pointer array-indexing *((struct Point[2]) points + (number) 0)
Fixing pointer array-indexing *((struct Point[2]) points + (number) 0)
Fixing pointer array-indexing *((struct Point[2]) points + (number) 1)
Fixing pointer array-indexing *((struct Point[2]) points + (number) 1)
Fixing pointer array-indexing *((struct Point[2]) points + (number) 0)
Fixing pointer array-indexing *((struct Point[2]) points + (number) 0)
Fixing pointer array-indexing *((struct Point[2]) points + (number) 1)
Fixing pointer array-indexing *((struct Point[2]) points + (number) 1)
Rewriting struct pointer member access *((struct Point[2]) points + (number~) main::$0).x
Rewriting struct pointer member access *((struct Point[2]) points + (number~) main::$1).y
Rewriting struct pointer member access *((struct Point[2]) points + (number~) main::$2).x
Rewriting struct pointer member access *((struct Point[2]) points + (number~) main::$3).y
Rewriting struct pointer member access *((struct Point[2]) points + (number~) main::$4).x
Rewriting struct pointer member access *((struct Point[2]) points + (number~) main::$5).y
Rewriting struct pointer member access *((struct Point[2]) points + (number~) main::$6).x
Rewriting struct pointer member access *((struct Point[2]) points + (number~) main::$7).y
Adding pointer type conversion cast (byte*) main::SCREEN in (byte*) main::SCREEN ← (number) $400
CONTROL FLOW GRAPH SSA
@begin: scope:[] from
(struct Point[2]) points#0 ← { fill( 2, 0) }
to:@1
main: scope:[main] from @1
(number~) main::$0 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$8 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
*((byte*) main::$8 + (number~) main::$0) ← (number) 2
(number~) main::$1 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$9 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
*((byte*) main::$9 + (number~) main::$1) ← (number) 3
(number~) main::$2 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$10 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
*((byte*) main::$10 + (number~) main::$2) ← (number) 5
(number~) main::$3 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$11 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
*((byte*) main::$11 + (number~) main::$3) ← (number) 6
(byte*) main::SCREEN#0 ← ((byte*)) (number) $400
(number~) main::$4 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$12 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
*((byte*) main::SCREEN#0 + (number) 0) ← *((byte*) main::$12 + (number~) main::$4)
(number~) main::$5 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$13 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
*((byte*) main::SCREEN#0 + (number) 1) ← *((byte*) main::$13 + (number~) main::$5)
(number~) main::$6 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$14 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
*((byte*) main::SCREEN#0 + (number) 3) ← *((byte*) main::$14 + (number~) main::$6)
(number~) main::$7 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$15 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
*((byte*) main::SCREEN#0 + (number) 4) ← *((byte*) main::$15 + (number~) main::$7)
to:main::@return
main::@return: scope:[main] from main
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
(const byte) OFFSET_STRUCT_POINT_X = (byte) 0
(const byte) OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(const byte) SIZEOF_STRUCT_POINT = (byte) 2
(void()) main()
(number~) main::$0
(number~) main::$1
(byte*) main::$10
(byte*) main::$11
(byte*) main::$12
(byte*) main::$13
(byte*) main::$14
(byte*) main::$15
(number~) main::$2
(number~) main::$3
(number~) main::$4
(number~) main::$5
(number~) main::$6
(number~) main::$7
(byte*) main::$8
(byte*) main::$9
(label) main::@return
(byte*) main::SCREEN
(byte*) main::SCREEN#0
(struct Point[2]) points
(struct Point[2]) points#0
Adding number conversion cast (unumber) 0 in (number~) main::$0 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$0 in (number~) main::$0 ← (unumber)(number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 2 in *((byte*) main::$8 + (unumber~) main::$0) ← (number) 2
Adding number conversion cast (unumber) 0 in (number~) main::$1 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$1 in (number~) main::$1 ← (unumber)(number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 3 in *((byte*) main::$9 + (unumber~) main::$1) ← (number) 3
Adding number conversion cast (unumber) 1 in (number~) main::$2 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$2 in (number~) main::$2 ← (unumber)(number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 5 in *((byte*) main::$10 + (unumber~) main::$2) ← (number) 5
Adding number conversion cast (unumber) 1 in (number~) main::$3 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$3 in (number~) main::$3 ← (unumber)(number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 6 in *((byte*) main::$11 + (unumber~) main::$3) ← (number) 6
Adding number conversion cast (unumber) 0 in (number~) main::$4 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$4 in (number~) main::$4 ← (unumber)(number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 0 in *((byte*) main::SCREEN#0 + (number) 0) ← *((byte*) main::$12 + (unumber~) main::$4)
Adding number conversion cast (unumber) 0 in (number~) main::$5 ← (number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$5 in (number~) main::$5 ← (unumber)(number) 0 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 1 in *((byte*) main::SCREEN#0 + (number) 1) ← *((byte*) main::$13 + (unumber~) main::$5)
Adding number conversion cast (unumber) 1 in (number~) main::$6 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$6 in (number~) main::$6 ← (unumber)(number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 3 in *((byte*) main::SCREEN#0 + (number) 3) ← *((byte*) main::$14 + (unumber~) main::$6)
Adding number conversion cast (unumber) 1 in (number~) main::$7 ← (number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) main::$7 in (number~) main::$7 ← (unumber)(number) 1 * (const byte) SIZEOF_STRUCT_POINT
Adding number conversion cast (unumber) 4 in *((byte*) main::SCREEN#0 + (number) 4) ← *((byte*) main::$15 + (unumber~) main::$7)
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast *((byte*) main::$8 + (unumber~) main::$0) ← (unumber)(number) 2
Inlining cast *((byte*) main::$9 + (unumber~) main::$1) ← (unumber)(number) 3
Inlining cast *((byte*) main::$10 + (unumber~) main::$2) ← (unumber)(number) 5
Inlining cast *((byte*) main::$11 + (unumber~) main::$3) ← (unumber)(number) 6
Inlining cast (byte*) main::SCREEN#0 ← (byte*)(number) $400
Successful SSA optimization Pass2InlineCast
Simplifying constant integer cast 0
Simplifying constant integer cast 2
Simplifying constant integer cast 0
Simplifying constant integer cast 3
Simplifying constant integer cast 1
Simplifying constant integer cast 5
Simplifying constant integer cast 1
Simplifying constant integer cast 6
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast 0
Simplifying constant integer cast 0
Simplifying constant integer cast 0
Simplifying constant integer cast 1
Simplifying constant integer cast 1
Simplifying constant integer cast 3
Simplifying constant integer cast 1
Simplifying constant integer cast 4
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 2
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 3
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 5
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 6
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 3
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 4
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to byte in (unumber~) main::$0 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Inferred type updated to byte in (unumber~) main::$1 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Inferred type updated to byte in (unumber~) main::$2 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Inferred type updated to byte in (unumber~) main::$3 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Inferred type updated to byte in (unumber~) main::$4 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Inferred type updated to byte in (unumber~) main::$5 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Inferred type updated to byte in (unumber~) main::$6 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Inferred type updated to byte in (unumber~) main::$7 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [0] (struct Point[2]) points#0 ← { fill( 2, 0) }
Constant right-side identified [1] (byte~) main::$0 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [4] (byte~) main::$1 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [7] (byte~) main::$2 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [10] (byte~) main::$3 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [14] (byte~) main::$4 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [17] (byte~) main::$5 ← (byte) 0 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [20] (byte~) main::$6 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Constant right-side identified [23] (byte~) main::$7 ← (byte) 1 * (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const struct Point[2]) points#0 = { fill( 2, 0) }
Constant (const byte) main::$0 = 0*SIZEOF_STRUCT_POINT
Constant (const byte) main::$1 = 0*SIZEOF_STRUCT_POINT
Constant (const byte) main::$2 = 1*SIZEOF_STRUCT_POINT
Constant (const byte) main::$3 = 1*SIZEOF_STRUCT_POINT
Constant (const byte*) main::SCREEN#0 = (byte*) 1024
Constant (const byte) main::$4 = 0*SIZEOF_STRUCT_POINT
Constant (const byte) main::$5 = 0*SIZEOF_STRUCT_POINT
Constant (const byte) main::$6 = 1*SIZEOF_STRUCT_POINT
Constant (const byte) main::$7 = 1*SIZEOF_STRUCT_POINT
Successful SSA optimization Pass2ConstantIdentification
Constant value identified (byte*)points#0 in [2] (byte*) main::$8 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [5] (byte*) main::$9 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant value identified (byte*)points#0 in [8] (byte*) main::$10 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [11] (byte*) main::$11 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant value identified (byte*)points#0 in [15] (byte*) main::$12 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [18] (byte*) main::$13 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant value identified (byte*)points#0 in [21] (byte*) main::$14 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [24] (byte*) main::$15 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantValues
Simplifying constant evaluating to zero (byte) 0*(const byte) SIZEOF_STRUCT_POINT in
Simplifying constant evaluating to zero (byte) 0*(const byte) SIZEOF_STRUCT_POINT in
Simplifying constant evaluating to zero (byte) 0*(const byte) SIZEOF_STRUCT_POINT in
Simplifying constant evaluating to zero (byte) 0*(const byte) SIZEOF_STRUCT_POINT in
Successful SSA optimization PassNSimplifyConstantZero
Simplifying expression containing zero (byte*)points#0 in [2] (byte*) main::$8 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero main::$8 in [3] *((byte*) main::$8 + (const byte) main::$0) ← (byte) 2
Simplifying expression containing zero main::$9 in [6] *((byte*) main::$9 + (const byte) main::$1) ← (byte) 3
Simplifying expression containing zero (byte*)points#0 in [8] (byte*) main::$10 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero (byte*)points#0 in [15] (byte*) main::$12 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero main::$12 in [16] *((const byte*) main::SCREEN#0 + (byte) 0) ← *((byte*) main::$12 + (const byte) main::$4)
Simplifying expression containing zero main::SCREEN#0 in [16] *((const byte*) main::SCREEN#0 + (byte) 0) ← *((byte*) main::$12)
Simplifying expression containing zero main::$13 in [19] *((const byte*) main::SCREEN#0 + (byte) 1) ← *((byte*) main::$13 + (const byte) main::$5)
Simplifying expression containing zero (byte*)points#0 in [21] (byte*) main::$14 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNSimplifyExpressionWithZero
Eliminating unused constant (const byte) main::$0
Eliminating unused constant (const byte) main::$1
Eliminating unused constant (const byte) main::$4
Eliminating unused constant (const byte) main::$5
Eliminating unused constant (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNEliminateUnusedVars
Constant right-side identified [2] (byte*) main::$9 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant right-side identified [6] (byte*) main::$11 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant right-side identified [10] (byte*) main::$13 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant right-side identified [14] (byte*) main::$15 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const byte*) main::$8 = (byte*)points#0
Constant (const byte*) main::$9 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Constant (const byte*) main::$10 = (byte*)points#0
Constant (const byte*) main::$11 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Constant (const byte*) main::$12 = (byte*)points#0
Constant (const byte*) main::$13 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Constant (const byte*) main::$14 = (byte*)points#0
Constant (const byte*) main::$15 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantIdentification
Constant inlined main::$12 = (byte*)(const struct Point[2]) points#0
Constant inlined main::$13 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Constant inlined main::$14 = (byte*)(const struct Point[2]) points#0
Constant inlined main::$15 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Constant inlined main::$10 = (byte*)(const struct Point[2]) points#0
Constant inlined main::$11 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Constant inlined main::$2 = (byte) 1*(const byte) SIZEOF_STRUCT_POINT
Constant inlined main::$6 = (byte) 1*(const byte) SIZEOF_STRUCT_POINT
Constant inlined main::$3 = (byte) 1*(const byte) SIZEOF_STRUCT_POINT
Constant inlined main::$9 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Constant inlined main::$7 = (byte) 1*(const byte) SIZEOF_STRUCT_POINT
Constant inlined main::$8 = (byte*)(const struct Point[2]) points#0
Successful SSA optimization Pass2ConstantInlining
Consolidated array index constant in *((byte*)points#0+1*SIZEOF_STRUCT_POINT)
Consolidated array index constant in *((byte*)points#0+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT)
Consolidated array index constant in *(main::SCREEN#0+1)
Consolidated array index constant in *((byte*)points#0+1*SIZEOF_STRUCT_POINT)
Consolidated array index constant in *(main::SCREEN#0+3)
Consolidated array index constant in *((byte*)points#0+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT)
Consolidated array index constant in *(main::SCREEN#0+4)
Successful SSA optimization Pass2ConstantAdditionElimination
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
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
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end
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] *((byte*)(const struct Point[2]) points#0) ← (byte) 2
[5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3
[6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 5
[7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 6
[8] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point[2]) points#0)
[9] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y)
[10] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT)
[11] *((const byte*) main::SCREEN#0+(byte) 4) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT)
to:main::@return
main::@return: scope:[main] from main
[12] return
to:@return
VARIABLE REGISTER WEIGHTS
(byte) Point::x
(byte) Point::y
(void()) main()
(byte*) main::SCREEN
(struct Point[2]) points
Initial phi equivalence classes
Complete equivalence classes
INITIAL ASM
//SEG0 File Comments
// Minimal struct - direct (constant) array access
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const SIZEOF_STRUCT_POINT = 2
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
jmp b1
//SEG5 @1
b1:
//SEG6 [2] call main
jsr main
//SEG7 [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
jmp bend
//SEG8 @end
bend:
//SEG9 main
main: {
.label SCREEN = $400
//SEG10 [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 2 -- _deref_pbuc1=vbuc2
lda #2
sta points
//SEG11 [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3 -- _deref_pbuc1=vbuc2
lda #3
sta points+OFFSET_STRUCT_POINT_Y
//SEG12 [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 5 -- _deref_pbuc1=vbuc2
lda #5
sta points+1*SIZEOF_STRUCT_POINT
//SEG13 [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 6 -- _deref_pbuc1=vbuc2
lda #6
sta points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
//SEG14 [8] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point[2]) points#0) -- _deref_pbuc1=_deref_pbuc2
lda points
sta SCREEN
//SEG15 [9] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
lda points+OFFSET_STRUCT_POINT_Y
sta SCREEN+1
//SEG16 [10] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
lda points+1*SIZEOF_STRUCT_POINT
sta SCREEN+3
//SEG17 [11] *((const byte*) main::SCREEN#0+(byte) 4) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
lda points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
sta SCREEN+4
jmp breturn
//SEG18 main::@return
breturn:
//SEG19 [12] return
rts
}
points: .fill 2*2, 0
REGISTER UPLIFT POTENTIAL REGISTERS
Statement [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 2 [ ] ( main:2 [ ] ) always clobbers reg byte a
Statement [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3 [ ] ( main:2 [ ] ) always clobbers reg byte a
Statement [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 5 [ ] ( main:2 [ ] ) always clobbers reg byte a
Statement [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 6 [ ] ( main:2 [ ] ) always clobbers reg byte a
Statement [8] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point[2]) points#0) [ ] ( main:2 [ ] ) always clobbers reg byte a
Statement [9] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) [ ] ( main:2 [ ] ) always clobbers reg byte a
Statement [10] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) [ ] ( main:2 [ ] ) always clobbers reg byte a
Statement [11] *((const byte*) main::SCREEN#0+(byte) 4) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) [ ] ( main:2 [ ] ) always clobbers reg byte a
REGISTER UPLIFT SCOPES
Uplift Scope [Point]
Uplift Scope [main]
Uplift Scope []
Uplifting [Point] best 77 combination
Uplifting [main] best 77 combination
Uplifting [] best 77 combination
ASSEMBLER BEFORE OPTIMIZATION
//SEG0 File Comments
// Minimal struct - direct (constant) array access
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const SIZEOF_STRUCT_POINT = 2
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
jmp b1
//SEG5 @1
b1:
//SEG6 [2] call main
jsr main
//SEG7 [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
jmp bend
//SEG8 @end
bend:
//SEG9 main
main: {
.label SCREEN = $400
//SEG10 [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 2 -- _deref_pbuc1=vbuc2
lda #2
sta points
//SEG11 [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3 -- _deref_pbuc1=vbuc2
lda #3
sta points+OFFSET_STRUCT_POINT_Y
//SEG12 [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 5 -- _deref_pbuc1=vbuc2
lda #5
sta points+1*SIZEOF_STRUCT_POINT
//SEG13 [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 6 -- _deref_pbuc1=vbuc2
lda #6
sta points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
//SEG14 [8] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point[2]) points#0) -- _deref_pbuc1=_deref_pbuc2
lda points
sta SCREEN
//SEG15 [9] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
lda points+OFFSET_STRUCT_POINT_Y
sta SCREEN+1
//SEG16 [10] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
lda points+1*SIZEOF_STRUCT_POINT
sta SCREEN+3
//SEG17 [11] *((const byte*) main::SCREEN#0+(byte) 4) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
lda points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
sta SCREEN+4
jmp breturn
//SEG18 main::@return
breturn:
//SEG19 [12] return
rts
}
points: .fill 2*2, 0
ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction b1_from_bbegin:
Removing instruction b1:
Removing instruction bend_from_b1:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
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
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(const byte) SIZEOF_STRUCT_POINT SIZEOF_STRUCT_POINT = (byte) 2
(void()) main()
(label) main::@return
(byte*) main::SCREEN
(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
(struct Point[2]) points
(const struct Point[2]) points#0 points = { fill( 2, 0) }
FINAL ASSEMBLER
Score: 62
//SEG0 File Comments
// Minimal struct - direct (constant) array access
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const SIZEOF_STRUCT_POINT = 2
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
//SEG5 @1
//SEG6 [2] call main
//SEG7 [3] phi from @1 to @end [phi:@1->@end]
//SEG8 @end
//SEG9 main
main: {
.label SCREEN = $400
//SEG10 [4] *((byte*)(const struct Point[2]) points#0) ← (byte) 2 -- _deref_pbuc1=vbuc2
lda #2
sta points
//SEG11 [5] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3 -- _deref_pbuc1=vbuc2
lda #3
sta points+OFFSET_STRUCT_POINT_Y
//SEG12 [6] *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 5 -- _deref_pbuc1=vbuc2
lda #5
sta points+1*SIZEOF_STRUCT_POINT
//SEG13 [7] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) ← (byte) 6 -- _deref_pbuc1=vbuc2
lda #6
sta points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
//SEG14 [8] *((const byte*) main::SCREEN#0) ← *((byte*)(const struct Point[2]) points#0) -- _deref_pbuc1=_deref_pbuc2
lda points
sta SCREEN
//SEG15 [9] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
lda points+OFFSET_STRUCT_POINT_Y
sta SCREEN+1
//SEG16 [10] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(const struct Point[2]) points#0+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
lda points+1*SIZEOF_STRUCT_POINT
sta SCREEN+3
//SEG17 [11] *((const byte*) main::SCREEN#0+(byte) 4) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y+(byte) 1*(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
lda points+OFFSET_STRUCT_POINT_Y+1*SIZEOF_STRUCT_POINT
sta SCREEN+4
//SEG18 main::@return
//SEG19 [12] return
rts
}
points: .fill 2*2, 0

14
src/test/ref/struct-ptr-7.sym Normal file
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(label) @1
(label) @begin
(label) @end
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(const byte) SIZEOF_STRUCT_POINT SIZEOF_STRUCT_POINT = (byte) 2
(void()) main()
(label) main::@return
(byte*) main::SCREEN
(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
(struct Point[2]) points
(const struct Point[2]) points#0 points = { fill( 2, 0) }

50
src/test/ref/struct-ptr-8.asm Normal file
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// Minimal struct - variable array access
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
.const OFFSET_STRUCT_POINT_Y = 1
main: {
.label SCREEN = $400
.label i = 2
.label i1 = 3
lda #0
sta i
b1:
lax i
axs #-[2]
lda i
asl
tay
txa
sta points,y
lda #3
clc
adc i
sta points+OFFSET_STRUCT_POINT_Y,y
inc i
lda #2
cmp i
bne b1
ldx #0
txa
sta i1
b2:
lda i1
asl
tay
lda points,y
sta SCREEN,x
inx
lda points+OFFSET_STRUCT_POINT_Y,y
sta SCREEN,x
inx
lda #' '
sta SCREEN,x
inx
inc i1
lda #2
cmp i1
bne b2
rts
}
points: .fill 2*2, 0

38
src/test/ref/struct-ptr-8.cfg Normal file
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@begin: scope:[] from
[0] phi()
to:@1
@1: scope:[] from @begin
[1] phi()
[2] call main
to:@end
@end: scope:[] from @1
[3] phi()
main: scope:[main] from @1
[4] phi()
to:main::@1
main::@1: scope:[main] from main main::@1
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
[6] (byte~) main::$0 ← (byte) 2 + (byte) main::i#2
[7] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1
[8] *((byte*)(const struct Point[2]) points#0 + (byte~) main::$5) ← (byte~) main::$0
[9] (byte~) main::$1 ← (byte) 3 + (byte) main::i#2
[10] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$1
[11] (byte) main::i#1 ← ++ (byte) main::i#2
[12] if((byte) main::i#1!=(byte) 2) goto main::@1
to:main::@2
main::@2: scope:[main] from main::@1 main::@2
[13] (byte) main::idx#4 ← phi( main::@1/(byte) 0 main::@2/(byte) main::idx#3 )
[13] (byte) main::i1#2 ← phi( main::@1/(byte) 0 main::@2/(byte) main::i1#1 )
[14] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1
[15] *((const byte*) main::SCREEN#0 + (byte) main::idx#4) ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$7)
[16] (byte) main::idx#1 ← ++ (byte) main::idx#4
[17] *((const byte*) main::SCREEN#0 + (byte) main::idx#1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7)
[18] (byte) main::idx#2 ← ++ (byte) main::idx#1
[19] *((const byte*) main::SCREEN#0 + (byte) main::idx#2) ← (byte) ' '
[20] (byte) main::idx#3 ← ++ (byte) main::idx#2
[21] (byte) main::i1#1 ← ++ (byte) main::i1#2
[22] if((byte) main::i1#1!=(byte) 2) goto main::@2
to:main::@return
main::@return: scope:[main] from main::@2
[23] return
to:@return

787
src/test/ref/struct-ptr-8.log Normal file
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Fixing pointer array-indexing *((struct Point[2]) points + (byte) main::i)
Fixing pointer array-indexing *((struct Point[2]) points + (byte) main::i)
Fixing pointer array-indexing *((struct Point[2]) points + (byte) main::i1)
Fixing pointer array-indexing *((struct Point[2]) points + (byte) main::i1)
Rewriting struct pointer member access *((struct Point[2]) points + (byte~) main::$4).x
Rewriting struct pointer member access *((struct Point[2]) points + (byte~) main::$5).y
Rewriting struct pointer member access *((struct Point[2]) points + (byte~) main::$6).x
Rewriting struct pointer member access *((struct Point[2]) points + (byte~) main::$7).y
Adding pointer type conversion cast (byte*) main::SCREEN in (byte*) main::SCREEN ← (number) $400
Culled Empty Block (label) main::@4
CONTROL FLOW GRAPH SSA
@begin: scope:[] from
(struct Point[2]) points#0 ← { fill( 2, 0) }
to:@1
main: scope:[main] from @1
(byte) main::i#0 ← (byte) 0
to:main::@1
main::@1: scope:[main] from main main::@1
(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@1/(byte) main::i#1 )
(number~) main::$0 ← (number) 2 + (byte) main::i#2
(byte~) main::$4 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$8 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
*((byte*) main::$8 + (byte~) main::$4) ← (number~) main::$0
(number~) main::$1 ← (number) 3 + (byte) main::i#2
(byte~) main::$5 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$9 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
*((byte*) main::$9 + (byte~) main::$5) ← (number~) main::$1
(byte) main::i#1 ← (byte) main::i#2 + rangenext(0,1)
(bool~) main::$2 ← (byte) main::i#1 != rangelast(0,1)
if((bool~) main::$2) goto main::@1
to:main::@2
main::@2: scope:[main] from main::@1
(byte*) main::SCREEN#0 ← ((byte*)) (number) $400
(byte) main::idx#0 ← (number) 0
(byte) main::i1#0 ← (byte) 0
to:main::@3
main::@3: scope:[main] from main::@2 main::@3
(byte) main::idx#4 ← phi( main::@2/(byte) main::idx#0 main::@3/(byte) main::idx#3 )
(byte) main::i1#2 ← phi( main::@2/(byte) main::i1#0 main::@3/(byte) main::i1#1 )
(byte~) main::$6 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$10 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
*((byte*) main::SCREEN#0 + (byte) main::idx#4) ← *((byte*) main::$10 + (byte~) main::$6)
(byte) main::idx#1 ← ++ (byte) main::idx#4
(byte~) main::$7 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
(byte*) main::$11 ← (byte*)(struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
*((byte*) main::SCREEN#0 + (byte) main::idx#1) ← *((byte*) main::$11 + (byte~) main::$7)
(byte) main::idx#2 ← ++ (byte) main::idx#1
*((byte*) main::SCREEN#0 + (byte) main::idx#2) ← (byte) ' '
(byte) main::idx#3 ← ++ (byte) main::idx#2
(byte) main::i1#1 ← (byte) main::i1#2 + rangenext(0,1)
(bool~) main::$3 ← (byte) main::i1#1 != rangelast(0,1)
if((bool~) main::$3) goto main::@3
to:main::@return
main::@return: scope:[main] from main::@3
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
(const byte) OFFSET_STRUCT_POINT_X = (byte) 0
(const byte) OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(const byte) SIZEOF_STRUCT_POINT = (byte) 2
(void()) main()
(number~) main::$0
(number~) main::$1
(byte*) main::$10
(byte*) main::$11
(bool~) main::$2
(bool~) main::$3
(byte~) main::$4
(byte~) main::$5
(byte~) main::$6
(byte~) main::$7
(byte*) main::$8
(byte*) main::$9
(label) main::@1
(label) main::@2
(label) main::@3
(label) main::@return
(byte*) main::SCREEN
(byte*) main::SCREEN#0
(byte) main::i
(byte) main::i#0
(byte) main::i#1
(byte) main::i#2
(byte) main::i1
(byte) main::i1#0
(byte) main::i1#1
(byte) main::i1#2
(byte) main::idx
(byte) main::idx#0
(byte) main::idx#1
(byte) main::idx#2
(byte) main::idx#3
(byte) main::idx#4
(struct Point[2]) points
(struct Point[2]) points#0
Adding number conversion cast (unumber) 2 in (number~) main::$0 ← (number) 2 + (byte) main::i#2
Adding number conversion cast (unumber) main::$0 in (number~) main::$0 ← (unumber)(number) 2 + (byte) main::i#2
Adding number conversion cast (unumber) 3 in (number~) main::$1 ← (number) 3 + (byte) main::i#2
Adding number conversion cast (unumber) main::$1 in (number~) main::$1 ← (unumber)(number) 3 + (byte) main::i#2
Adding number conversion cast (unumber) 0 in (byte) main::idx#0 ← (number) 0
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast (byte*) main::SCREEN#0 ← (byte*)(number) $400
Inlining cast (byte) main::idx#0 ← (unumber)(number) 0
Successful SSA optimization Pass2InlineCast
Simplifying constant integer cast 2
Simplifying constant integer cast 3
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast 0
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 2
Finalized unsigned number type (byte) 3
Finalized unsigned number type (byte) 0
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to byte in (unumber~) main::$0 ← (byte) 2 + (byte) main::i#2
Inferred type updated to byte in (unumber~) main::$1 ← (byte) 3 + (byte) main::i#2
Identified duplicate assignment right side [8] (byte~) main::$5 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
Identified duplicate assignment right side [22] (byte~) main::$7 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization Pass2DuplicateRValueIdentification
Simple Condition (bool~) main::$2 [13] if((byte) main::i#1!=rangelast(0,1)) goto main::@1
Simple Condition (bool~) main::$3 [30] if((byte) main::i1#1!=rangelast(0,1)) goto main::@3
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant right-side identified [0] (struct Point[2]) points#0 ← { fill( 2, 0) }
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const struct Point[2]) points#0 = { fill( 2, 0) }
Constant (const byte) main::i#0 = 0
Constant (const byte*) main::SCREEN#0 = (byte*) 1024
Constant (const byte) main::idx#0 = 0
Constant (const byte) main::i1#0 = 0
Successful SSA optimization Pass2ConstantIdentification
Constant value identified (byte*)points#0 in [5] (byte*) main::$8 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [9] (byte*) main::$9 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant value identified (byte*)points#0 in [19] (byte*) main::$10 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Constant value identified (byte*)points#0 in [23] (byte*) main::$11 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantValues
Resolved ranged next value [11] main::i#1 ← ++ main::i#2 to ++
Resolved ranged comparison value [13] if(main::i#1!=rangelast(0,1)) goto main::@1 to (number) 2
Resolved ranged next value [28] main::i1#1 ← ++ main::i1#2 to ++
Resolved ranged comparison value [30] if(main::i1#1!=rangelast(0,1)) goto main::@3 to (number) 2
Simplifying expression containing zero (byte*)points#0 in [5] (byte*) main::$8 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Simplifying expression containing zero (byte*)points#0 in [19] (byte*) main::$10 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNSimplifyExpressionWithZero
Eliminating unused constant (const byte) OFFSET_STRUCT_POINT_X
Successful SSA optimization PassNEliminateUnusedVars
Adding number conversion cast (unumber) 2 in if((byte) main::i#1!=(number) 2) goto main::@1
Adding number conversion cast (unumber) 2 in if((byte) main::i1#1!=(number) 2) goto main::@3
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant integer cast 2
Simplifying constant integer cast 2
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 2
Finalized unsigned number type (byte) 2
Successful SSA optimization PassNFinalizeNumberTypeConversions
Alias (byte~) main::$5 = (byte~) main::$4
Alias (byte~) main::$7 = (byte~) main::$6
Successful SSA optimization Pass2AliasElimination
Constant right-side identified [7] (byte*) main::$9 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Constant right-side identified [17] (byte*) main::$11 ← (byte*)(const struct Point[2]) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const byte*) main::$8 = (byte*)points#0
Constant (const byte*) main::$9 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Constant (const byte*) main::$10 = (byte*)points#0
Constant (const byte*) main::$11 = (byte*)points#0+OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantIdentification
Rewriting multiplication to use shift [2] (byte~) main::$5 ← (byte) main::i#2 * (const byte) SIZEOF_STRUCT_POINT
Rewriting multiplication to use shift [9] (byte~) main::$7 ← (byte) main::i1#2 * (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization Pass2MultiplyToShiftRewriting
Inlining constant with var siblings (const byte) main::i#0
Inlining constant with var siblings (const byte) main::idx#0
Inlining constant with var siblings (const byte) main::i1#0
Constant inlined main::idx#0 = (byte) 0
Constant inlined main::i#0 = (byte) 0
Constant inlined main::i1#0 = (byte) 0
Constant inlined main::$9 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Constant inlined main::$10 = (byte*)(const struct Point[2]) points#0
Constant inlined main::$8 = (byte*)(const struct Point[2]) points#0
Constant inlined main::$11 = (byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y
Successful SSA optimization Pass2ConstantInlining
Eliminating unused constant (const byte) SIZEOF_STRUCT_POINT
Successful SSA optimization PassNEliminateUnusedVars
Added new block during phi lifting main::@5(between main::@1 and main::@1)
Added new block during phi lifting main::@6(between main::@3 and main::@3)
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
Adding NOP phi() at start of main::@2
CALL GRAPH
Calls in [] to main:2
Created 3 initial phi equivalence classes
Coalesced [26] main::i1#3 ← main::i1#1
Coalesced [27] main::idx#5 ← main::idx#3
Coalesced [28] main::i#3 ← main::i#1
Coalesced down to 3 phi equivalence classes
Culled Empty Block (label) @2
Culled Empty Block (label) main::@2
Culled Empty Block (label) main::@6
Culled Empty Block (label) main::@5
Renumbering block main::@3 to main::@2
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
FINAL CONTROL FLOW GRAPH
@begin: scope:[] from
[0] phi()
to:@1
@1: scope:[] from @begin
[1] phi()
[2] call main
to:@end
@end: scope:[] from @1
[3] phi()
main: scope:[main] from @1
[4] phi()
to:main::@1
main::@1: scope:[main] from main main::@1
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
[6] (byte~) main::$0 ← (byte) 2 + (byte) main::i#2
[7] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1
[8] *((byte*)(const struct Point[2]) points#0 + (byte~) main::$5) ← (byte~) main::$0
[9] (byte~) main::$1 ← (byte) 3 + (byte) main::i#2
[10] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$1
[11] (byte) main::i#1 ← ++ (byte) main::i#2
[12] if((byte) main::i#1!=(byte) 2) goto main::@1
to:main::@2
main::@2: scope:[main] from main::@1 main::@2
[13] (byte) main::idx#4 ← phi( main::@1/(byte) 0 main::@2/(byte) main::idx#3 )
[13] (byte) main::i1#2 ← phi( main::@1/(byte) 0 main::@2/(byte) main::i1#1 )
[14] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1
[15] *((const byte*) main::SCREEN#0 + (byte) main::idx#4) ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$7)
[16] (byte) main::idx#1 ← ++ (byte) main::idx#4
[17] *((const byte*) main::SCREEN#0 + (byte) main::idx#1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7)
[18] (byte) main::idx#2 ← ++ (byte) main::idx#1
[19] *((const byte*) main::SCREEN#0 + (byte) main::idx#2) ← (byte) ' '
[20] (byte) main::idx#3 ← ++ (byte) main::idx#2
[21] (byte) main::i1#1 ← ++ (byte) main::i1#2
[22] if((byte) main::i1#1!=(byte) 2) goto main::@2
to:main::@return
main::@return: scope:[main] from main::@2
[23] return
to:@return
VARIABLE REGISTER WEIGHTS
(byte) Point::x
(byte) Point::y
(void()) main()
(byte~) main::$0 11.0
(byte~) main::$1 22.0
(byte~) main::$5 11.0
(byte~) main::$7 11.0
(byte*) main::SCREEN
(byte) main::i
(byte) main::i#1 16.5
(byte) main::i#2 9.166666666666666
(byte) main::i1
(byte) main::i1#1 16.5
(byte) main::i1#2 4.125
(byte) main::idx
(byte) main::idx#1 16.5
(byte) main::idx#2 16.5
(byte) main::idx#3 7.333333333333333
(byte) main::idx#4 11.0
(struct Point[2]) points
Initial phi equivalence classes
[ main::i#2 main::i#1 ]
[ main::i1#2 main::i1#1 ]
[ main::idx#4 main::idx#3 ]
Added variable main::$0 to zero page equivalence class [ main::$0 ]
Added variable main::$5 to zero page equivalence class [ main::$5 ]
Added variable main::$1 to zero page equivalence class [ main::$1 ]
Added variable main::$7 to zero page equivalence class [ main::$7 ]
Added variable main::idx#1 to zero page equivalence class [ main::idx#1 ]
Added variable main::idx#2 to zero page equivalence class [ main::idx#2 ]
Complete equivalence classes
[ main::i#2 main::i#1 ]
[ main::i1#2 main::i1#1 ]
[ main::idx#4 main::idx#3 ]
[ main::$0 ]
[ main::$5 ]
[ main::$1 ]
[ main::$7 ]
[ main::idx#1 ]
[ main::idx#2 ]
Allocated zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Allocated zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ]
Allocated zp ZP_BYTE:4 [ main::idx#4 main::idx#3 ]
Allocated zp ZP_BYTE:5 [ main::$0 ]
Allocated zp ZP_BYTE:6 [ main::$5 ]
Allocated zp ZP_BYTE:7 [ main::$1 ]
Allocated zp ZP_BYTE:8 [ main::$7 ]
Allocated zp ZP_BYTE:9 [ main::idx#1 ]
Allocated zp ZP_BYTE:10 [ main::idx#2 ]
INITIAL ASM
//SEG0 File Comments
// Minimal struct - variable array access
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
jmp b1
//SEG5 @1
b1:
//SEG6 [2] call main
//SEG7 [4] phi from @1 to main [phi:@1->main]
main_from_b1:
jsr main
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
jmp bend
//SEG9 @end
bend:
//SEG10 main
main: {
.label SCREEN = $400
.label _0 = 5
.label _1 = 7
.label _5 = 6
.label _7 = 8
.label i = 2
.label idx = 9
.label idx_2 = $a
.label idx_3 = 4
.label i1 = 3
.label idx_4 = 4
//SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
b1_from_main:
//SEG12 [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
lda #0
sta i
jmp b1
//SEG13 [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
b1_from_b1:
//SEG14 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy
jmp b1
//SEG15 main::@1
b1:
//SEG16 [6] (byte~) main::$0 ← (byte) 2 + (byte) main::i#2 -- vbuz1=vbuc1_plus_vbuz2
lax i
axs #-[2]
stx _0
//SEG17 [7] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1
lda i
asl
sta _5
//SEG18 [8] *((byte*)(const struct Point[2]) points#0 + (byte~) main::$5) ← (byte~) main::$0 -- pbuc1_derefidx_vbuz1=vbuz2
lda _0
ldy _5
sta points,y
//SEG19 [9] (byte~) main::$1 ← (byte) 3 + (byte) main::i#2 -- vbuz1=vbuc1_plus_vbuz2
lax i
axs #-[3]
stx _1
//SEG20 [10] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$1 -- pbuc1_derefidx_vbuz1=vbuz2
lda _1
ldy _5
sta points+OFFSET_STRUCT_POINT_Y,y
//SEG21 [11] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
inc i
//SEG22 [12] if((byte) main::i#1!=(byte) 2) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
lda #2
cmp i
bne b1_from_b1
//SEG23 [13] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
b2_from_b1:
//SEG24 [13] phi (byte) main::idx#4 = (byte) 0 [phi:main::@1->main::@2#0] -- vbuz1=vbuc1
lda #0
sta idx_4
//SEG25 [13] phi (byte) main::i1#2 = (byte) 0 [phi:main::@1->main::@2#1] -- vbuz1=vbuc1
lda #0
sta i1
jmp b2
//SEG26 [13] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
b2_from_b2:
//SEG27 [13] phi (byte) main::idx#4 = (byte) main::idx#3 [phi:main::@2->main::@2#0] -- register_copy
//SEG28 [13] phi (byte) main::i1#2 = (byte) main::i1#1 [phi:main::@2->main::@2#1] -- register_copy
jmp b2
//SEG29 main::@2
b2:
//SEG30 [14] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1 -- vbuz1=vbuz2_rol_1
lda i1
asl
sta _7
//SEG31 [15] *((const byte*) main::SCREEN#0 + (byte) main::idx#4) ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$7) -- pbuc1_derefidx_vbuz1=pbuc2_derefidx_vbuz2
ldy _7
lda points,y
ldy idx_4
sta SCREEN,y
//SEG32 [16] (byte) main::idx#1 ← ++ (byte) main::idx#4 -- vbuz1=_inc_vbuz2
ldy idx_4
iny
sty idx
//SEG33 [17] *((const byte*) main::SCREEN#0 + (byte) main::idx#1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) -- pbuc1_derefidx_vbuz1=pbuc2_derefidx_vbuz2
ldy _7
lda points+OFFSET_STRUCT_POINT_Y,y
ldy idx
sta SCREEN,y
//SEG34 [18] (byte) main::idx#2 ← ++ (byte) main::idx#1 -- vbuz1=_inc_vbuz2
ldy idx
iny
sty idx_2
//SEG35 [19] *((const byte*) main::SCREEN#0 + (byte) main::idx#2) ← (byte) ' ' -- pbuc1_derefidx_vbuz1=vbuc2
lda #' '
ldy idx_2
sta SCREEN,y
//SEG36 [20] (byte) main::idx#3 ← ++ (byte) main::idx#2 -- vbuz1=_inc_vbuz2
ldy idx_2
iny
sty idx_3
//SEG37 [21] (byte) main::i1#1 ← ++ (byte) main::i1#2 -- vbuz1=_inc_vbuz1
inc i1
//SEG38 [22] if((byte) main::i1#1!=(byte) 2) goto main::@2 -- vbuz1_neq_vbuc1_then_la1
lda #2
cmp i1
bne b2_from_b2
jmp breturn
//SEG39 main::@return
breturn:
//SEG40 [23] return
rts
}
points: .fill 2*2, 0
REGISTER UPLIFT POTENTIAL REGISTERS
Statement [7] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::$0 main::$5 ] ( main:2 [ main::i#2 main::$0 main::$5 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:5 [ main::$0 ]
Statement [8] *((byte*)(const struct Point[2]) points#0 + (byte~) main::$5) ← (byte~) main::$0 [ main::i#2 main::$5 ] ( main:2 [ main::i#2 main::$5 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:6 [ main::$5 ]
Statement [9] (byte~) main::$1 ← (byte) 3 + (byte) main::i#2 [ main::i#2 main::$5 main::$1 ] ( main:2 [ main::i#2 main::$5 main::$1 ] ) always clobbers reg byte a
Statement [14] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1 [ main::i1#2 main::idx#4 main::$7 ] ( main:2 [ main::i1#2 main::idx#4 main::$7 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ]
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:4 [ main::idx#4 main::idx#3 ]
Statement [15] *((const byte*) main::SCREEN#0 + (byte) main::idx#4) ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$7) [ main::i1#2 main::idx#4 main::$7 ] ( main:2 [ main::i1#2 main::idx#4 main::$7 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:8 [ main::$7 ]
Statement [17] *((const byte*) main::SCREEN#0 + (byte) main::idx#1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) [ main::i1#2 main::idx#1 ] ( main:2 [ main::i1#2 main::idx#1 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:9 [ main::idx#1 ]
Statement [19] *((const byte*) main::SCREEN#0 + (byte) main::idx#2) ← (byte) ' ' [ main::i1#2 main::idx#2 ] ( main:2 [ main::i1#2 main::idx#2 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:10 [ main::idx#2 ]
Statement [6] (byte~) main::$0 ← (byte) 2 + (byte) main::i#2 [ main::i#2 main::$0 ] ( main:2 [ main::i#2 main::$0 ] ) always clobbers reg byte a
Statement [7] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::$0 main::$5 ] ( main:2 [ main::i#2 main::$0 main::$5 ] ) always clobbers reg byte a
Statement [8] *((byte*)(const struct Point[2]) points#0 + (byte~) main::$5) ← (byte~) main::$0 [ main::i#2 main::$5 ] ( main:2 [ main::i#2 main::$5 ] ) always clobbers reg byte a
Statement [9] (byte~) main::$1 ← (byte) 3 + (byte) main::i#2 [ main::i#2 main::$5 main::$1 ] ( main:2 [ main::i#2 main::$5 main::$1 ] ) always clobbers reg byte a
Statement [14] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1 [ main::i1#2 main::idx#4 main::$7 ] ( main:2 [ main::i1#2 main::idx#4 main::$7 ] ) always clobbers reg byte a
Statement [15] *((const byte*) main::SCREEN#0 + (byte) main::idx#4) ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$7) [ main::i1#2 main::idx#4 main::$7 ] ( main:2 [ main::i1#2 main::idx#4 main::$7 ] ) always clobbers reg byte a
Statement [17] *((const byte*) main::SCREEN#0 + (byte) main::idx#1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) [ main::i1#2 main::idx#1 ] ( main:2 [ main::i1#2 main::idx#1 ] ) always clobbers reg byte a
Statement [19] *((const byte*) main::SCREEN#0 + (byte) main::idx#2) ← (byte) ' ' [ main::i1#2 main::idx#2 ] ( main:2 [ main::i1#2 main::idx#2 ] ) always clobbers reg byte a
Potential registers zp ZP_BYTE:2 [ main::i#2 main::i#1 ] : zp ZP_BYTE:2 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ] : zp ZP_BYTE:3 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:4 [ main::idx#4 main::idx#3 ] : zp ZP_BYTE:4 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:5 [ main::$0 ] : zp ZP_BYTE:5 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:6 [ main::$5 ] : zp ZP_BYTE:6 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:7 [ main::$1 ] : zp ZP_BYTE:7 , reg byte a , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:8 [ main::$7 ] : zp ZP_BYTE:8 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:9 [ main::idx#1 ] : zp ZP_BYTE:9 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:10 [ main::idx#2 ] : zp ZP_BYTE:10 , reg byte x , reg byte y ,
REGISTER UPLIFT SCOPES
Uplift Scope [main] 25.67: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 22: zp ZP_BYTE:7 [ main::$1 ] 20.62: zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ] 18.33: zp ZP_BYTE:4 [ main::idx#4 main::idx#3 ] 16.5: zp ZP_BYTE:9 [ main::idx#1 ] 16.5: zp ZP_BYTE:10 [ main::idx#2 ] 11: zp ZP_BYTE:5 [ main::$0 ] 11: zp ZP_BYTE:6 [ main::$5 ] 11: zp ZP_BYTE:8 [ main::$7 ]
Uplift Scope [Point]
Uplift Scope []
Uplifting [main] best 1598 combination zp ZP_BYTE:2 [ main::i#2 main::i#1 ] reg byte a [ main::$1 ] zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ] reg byte x [ main::idx#4 main::idx#3 ] zp ZP_BYTE:9 [ main::idx#1 ] zp ZP_BYTE:10 [ main::idx#2 ] zp ZP_BYTE:5 [ main::$0 ] zp ZP_BYTE:6 [ main::$5 ] zp ZP_BYTE:8 [ main::$7 ]
Limited combination testing to 100 combinations of 26244 possible.
Uplifting [Point] best 1598 combination
Uplifting [] best 1598 combination
Attempting to uplift remaining variables inzp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Uplifting [main] best 1598 combination zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
Attempting to uplift remaining variables inzp ZP_BYTE:3 [ main::i1#2 main::i1#1 ]
Uplifting [main] best 1598 combination zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ]
Attempting to uplift remaining variables inzp ZP_BYTE:9 [ main::idx#1 ]
Uplifting [main] best 1508 combination reg byte x [ main::idx#1 ]
Attempting to uplift remaining variables inzp ZP_BYTE:10 [ main::idx#2 ]
Uplifting [main] best 1418 combination reg byte x [ main::idx#2 ]
Attempting to uplift remaining variables inzp ZP_BYTE:5 [ main::$0 ]
Uplifting [main] best 1378 combination reg byte x [ main::$0 ]
Attempting to uplift remaining variables inzp ZP_BYTE:6 [ main::$5 ]
Uplifting [main] best 1308 combination reg byte y [ main::$5 ]
Attempting to uplift remaining variables inzp ZP_BYTE:8 [ main::$7 ]
Uplifting [main] best 1238 combination reg byte y [ main::$7 ]
ASSEMBLER BEFORE OPTIMIZATION
//SEG0 File Comments
// Minimal struct - variable array access
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
jmp b1
//SEG5 @1
b1:
//SEG6 [2] call main
//SEG7 [4] phi from @1 to main [phi:@1->main]
main_from_b1:
jsr main
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
jmp bend
//SEG9 @end
bend:
//SEG10 main
main: {
.label SCREEN = $400
.label i = 2
.label i1 = 3
//SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
b1_from_main:
//SEG12 [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
lda #0
sta i
jmp b1
//SEG13 [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
b1_from_b1:
//SEG14 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy
jmp b1
//SEG15 main::@1
b1:
//SEG16 [6] (byte~) main::$0 ← (byte) 2 + (byte) main::i#2 -- vbuxx=vbuc1_plus_vbuz1
lax i
axs #-[2]
//SEG17 [7] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1 -- vbuyy=vbuz1_rol_1
lda i
asl
tay
//SEG18 [8] *((byte*)(const struct Point[2]) points#0 + (byte~) main::$5) ← (byte~) main::$0 -- pbuc1_derefidx_vbuyy=vbuxx
txa
sta points,y
//SEG19 [9] (byte~) main::$1 ← (byte) 3 + (byte) main::i#2 -- vbuaa=vbuc1_plus_vbuz1
lda #3
clc
adc i
//SEG20 [10] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$1 -- pbuc1_derefidx_vbuyy=vbuaa
sta points+OFFSET_STRUCT_POINT_Y,y
//SEG21 [11] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
inc i
//SEG22 [12] if((byte) main::i#1!=(byte) 2) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
lda #2
cmp i
bne b1_from_b1
//SEG23 [13] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
b2_from_b1:
//SEG24 [13] phi (byte) main::idx#4 = (byte) 0 [phi:main::@1->main::@2#0] -- vbuxx=vbuc1
ldx #0
//SEG25 [13] phi (byte) main::i1#2 = (byte) 0 [phi:main::@1->main::@2#1] -- vbuz1=vbuc1
lda #0
sta i1
jmp b2
//SEG26 [13] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
b2_from_b2:
//SEG27 [13] phi (byte) main::idx#4 = (byte) main::idx#3 [phi:main::@2->main::@2#0] -- register_copy
//SEG28 [13] phi (byte) main::i1#2 = (byte) main::i1#1 [phi:main::@2->main::@2#1] -- register_copy
jmp b2
//SEG29 main::@2
b2:
//SEG30 [14] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1 -- vbuyy=vbuz1_rol_1
lda i1
asl
tay
//SEG31 [15] *((const byte*) main::SCREEN#0 + (byte) main::idx#4) ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$7) -- pbuc1_derefidx_vbuxx=pbuc2_derefidx_vbuyy
lda points,y
sta SCREEN,x
//SEG32 [16] (byte) main::idx#1 ← ++ (byte) main::idx#4 -- vbuxx=_inc_vbuxx
inx
//SEG33 [17] *((const byte*) main::SCREEN#0 + (byte) main::idx#1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) -- pbuc1_derefidx_vbuxx=pbuc2_derefidx_vbuyy
lda points+OFFSET_STRUCT_POINT_Y,y
sta SCREEN,x
//SEG34 [18] (byte) main::idx#2 ← ++ (byte) main::idx#1 -- vbuxx=_inc_vbuxx
inx
//SEG35 [19] *((const byte*) main::SCREEN#0 + (byte) main::idx#2) ← (byte) ' ' -- pbuc1_derefidx_vbuxx=vbuc2
lda #' '
sta SCREEN,x
//SEG36 [20] (byte) main::idx#3 ← ++ (byte) main::idx#2 -- vbuxx=_inc_vbuxx
inx
//SEG37 [21] (byte) main::i1#1 ← ++ (byte) main::i1#2 -- vbuz1=_inc_vbuz1
inc i1
//SEG38 [22] if((byte) main::i1#1!=(byte) 2) goto main::@2 -- vbuz1_neq_vbuc1_then_la1
lda #2
cmp i1
bne b2_from_b2
jmp breturn
//SEG39 main::@return
breturn:
//SEG40 [23] return
rts
}
points: .fill 2*2, 0
ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp breturn
Succesful ASM optimization Pass5NextJumpElimination
Replacing instruction lda #0 with TXA
Replacing label b1_from_b1 with b1
Replacing label b2_from_b2 with b2
Removing instruction b1_from_bbegin:
Removing instruction b1:
Removing instruction main_from_b1:
Removing instruction bend_from_b1:
Removing instruction b1_from_b1:
Removing instruction b2_from_b2:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction b1_from_main:
Removing instruction b2_from_b1:
Removing instruction breturn:
Succesful ASM optimization Pass5UnusedLabelElimination
Updating BasicUpstart to call main directly
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
Removing instruction jmp b1
Removing instruction jmp b2
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction bbegin:
Succesful ASM optimization Pass5UnusedLabelElimination
FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(void()) main()
(byte~) main::$0 reg byte x 11.0
(byte~) main::$1 reg byte a 22.0
(byte~) main::$5 reg byte y 11.0
(byte~) main::$7 reg byte y 11.0
(label) main::@1
(label) main::@2
(label) main::@return
(byte*) main::SCREEN
(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
(byte) main::i
(byte) main::i#1 i zp ZP_BYTE:2 16.5
(byte) main::i#2 i zp ZP_BYTE:2 9.166666666666666
(byte) main::i1
(byte) main::i1#1 i1 zp ZP_BYTE:3 16.5
(byte) main::i1#2 i1 zp ZP_BYTE:3 4.125
(byte) main::idx
(byte) main::idx#1 reg byte x 16.5
(byte) main::idx#2 reg byte x 16.5
(byte) main::idx#3 reg byte x 7.333333333333333
(byte) main::idx#4 reg byte x 11.0
(struct Point[2]) points
(const struct Point[2]) points#0 points = { fill( 2, 0) }
zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ]
reg byte x [ main::idx#4 main::idx#3 ]
reg byte x [ main::$0 ]
reg byte y [ main::$5 ]
reg byte a [ main::$1 ]
reg byte y [ main::$7 ]
reg byte x [ main::idx#1 ]
reg byte x [ main::idx#2 ]
FINAL ASSEMBLER
Score: 1076
//SEG0 File Comments
// Minimal struct - variable array access
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
//SEG2 Global Constants & labels
.const OFFSET_STRUCT_POINT_Y = 1
//SEG3 @begin
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
//SEG5 @1
//SEG6 [2] call main
//SEG7 [4] phi from @1 to main [phi:@1->main]
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
//SEG9 @end
//SEG10 main
main: {
.label SCREEN = $400
.label i = 2
.label i1 = 3
//SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
//SEG12 [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
lda #0
sta i
//SEG13 [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
//SEG14 [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy
//SEG15 main::@1
b1:
//SEG16 [6] (byte~) main::$0 ← (byte) 2 + (byte) main::i#2 -- vbuxx=vbuc1_plus_vbuz1
lax i
axs #-[2]
//SEG17 [7] (byte~) main::$5 ← (byte) main::i#2 << (byte) 1 -- vbuyy=vbuz1_rol_1
lda i
asl
tay
//SEG18 [8] *((byte*)(const struct Point[2]) points#0 + (byte~) main::$5) ← (byte~) main::$0 -- pbuc1_derefidx_vbuyy=vbuxx
txa
sta points,y
//SEG19 [9] (byte~) main::$1 ← (byte) 3 + (byte) main::i#2 -- vbuaa=vbuc1_plus_vbuz1
lda #3
clc
adc i
//SEG20 [10] *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$5) ← (byte~) main::$1 -- pbuc1_derefidx_vbuyy=vbuaa
sta points+OFFSET_STRUCT_POINT_Y,y
//SEG21 [11] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
inc i
//SEG22 [12] if((byte) main::i#1!=(byte) 2) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
lda #2
cmp i
bne b1
//SEG23 [13] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
//SEG24 [13] phi (byte) main::idx#4 = (byte) 0 [phi:main::@1->main::@2#0] -- vbuxx=vbuc1
ldx #0
//SEG25 [13] phi (byte) main::i1#2 = (byte) 0 [phi:main::@1->main::@2#1] -- vbuz1=vbuc1
txa
sta i1
//SEG26 [13] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
//SEG27 [13] phi (byte) main::idx#4 = (byte) main::idx#3 [phi:main::@2->main::@2#0] -- register_copy
//SEG28 [13] phi (byte) main::i1#2 = (byte) main::i1#1 [phi:main::@2->main::@2#1] -- register_copy
//SEG29 main::@2
b2:
//SEG30 [14] (byte~) main::$7 ← (byte) main::i1#2 << (byte) 1 -- vbuyy=vbuz1_rol_1
lda i1
asl
tay
//SEG31 [15] *((const byte*) main::SCREEN#0 + (byte) main::idx#4) ← *((byte*)(const struct Point[2]) points#0 + (byte~) main::$7) -- pbuc1_derefidx_vbuxx=pbuc2_derefidx_vbuyy
lda points,y
sta SCREEN,x
//SEG32 [16] (byte) main::idx#1 ← ++ (byte) main::idx#4 -- vbuxx=_inc_vbuxx
inx
//SEG33 [17] *((const byte*) main::SCREEN#0 + (byte) main::idx#1) ← *((byte*)(const struct Point[2]) points#0+(const byte) OFFSET_STRUCT_POINT_Y + (byte~) main::$7) -- pbuc1_derefidx_vbuxx=pbuc2_derefidx_vbuyy
lda points+OFFSET_STRUCT_POINT_Y,y
sta SCREEN,x
//SEG34 [18] (byte) main::idx#2 ← ++ (byte) main::idx#1 -- vbuxx=_inc_vbuxx
inx
//SEG35 [19] *((const byte*) main::SCREEN#0 + (byte) main::idx#2) ← (byte) ' ' -- pbuc1_derefidx_vbuxx=vbuc2
lda #' '
sta SCREEN,x
//SEG36 [20] (byte) main::idx#3 ← ++ (byte) main::idx#2 -- vbuxx=_inc_vbuxx
inx
//SEG37 [21] (byte) main::i1#1 ← ++ (byte) main::i1#2 -- vbuz1=_inc_vbuz1
inc i1
//SEG38 [22] if((byte) main::i1#1!=(byte) 2) goto main::@2 -- vbuz1_neq_vbuc1_then_la1
lda #2
cmp i1
bne b2
//SEG39 main::@return
//SEG40 [23] return
rts
}
points: .fill 2*2, 0

39
src/test/ref/struct-ptr-8.sym Normal file
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(label) @1
(label) @begin
(label) @end
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
(byte) Point::x
(byte) Point::y
(void()) main()
(byte~) main::$0 reg byte x 11.0
(byte~) main::$1 reg byte a 22.0
(byte~) main::$5 reg byte y 11.0
(byte~) main::$7 reg byte y 11.0
(label) main::@1
(label) main::@2
(label) main::@return
(byte*) main::SCREEN
(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
(byte) main::i
(byte) main::i#1 i zp ZP_BYTE:2 16.5
(byte) main::i#2 i zp ZP_BYTE:2 9.166666666666666
(byte) main::i1
(byte) main::i1#1 i1 zp ZP_BYTE:3 16.5
(byte) main::i1#2 i1 zp ZP_BYTE:3 4.125
(byte) main::idx
(byte) main::idx#1 reg byte x 16.5
(byte) main::idx#2 reg byte x 16.5
(byte) main::idx#3 reg byte x 7.333333333333333
(byte) main::idx#4 reg byte x 11.0
(struct Point[2]) points
(const struct Point[2]) points#0 points = { fill( 2, 0) }
zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
zp ZP_BYTE:3 [ main::i1#2 main::i1#1 ]
reg byte x [ main::idx#4 main::idx#3 ]
reg byte x [ main::$0 ]
reg byte y [ main::$5 ]
reg byte a [ main::$1 ]
reg byte y [ main::$7 ]
reg byte x [ main::idx#1 ]
reg byte x [ main::idx#2 ]