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nub31
2025-06-21 17:57:45 +02:00
parent a97aed0b9c
commit eb5d78f064
3 changed files with 136 additions and 130 deletions
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16
example/main.nub
View File

@@ -8,10 +8,24 @@ export func main(args: []cstring): i64 {
let human: Human
human = alloc Human {
name = "test"
name = "member"
}
c::puts(human.name)
c::puts("literal")
let x: cstring
x = "variable"
c::puts(x)
let y: func(cstring)
y = c::puts
y("proxy")
return 0
}

2
src/CLI/Program.cs
View File

@@ -84,7 +84,7 @@ foreach (var compilationUnit in compilationUnits)
Debug.Assert(!string.IsNullOrWhiteSpace(outputDirectory));
Directory.CreateDirectory(outputDirectory);
var ssa = QBEGenerator.Generate(compilationUnit, definitionTable);
var ssa = QBEGenerator.Emit(compilationUnit, definitionTable);
var ssaPath = Path.ChangeExtension(outputPath, "ssa");
File.WriteAllText(ssaPath, ssa);

248
src/Generation/QBE/QBEGenerator.cs
View File

@@ -28,7 +28,7 @@ public static class QBEGenerator
private static int _anonymousFuncIndex;
private static bool _codeIsReachable = true;
public static string Generate(CompilationUnit compilationUnit, DefinitionTable definitionTable)
public static string Emit(CompilationUnit compilationUnit, DefinitionTable definitionTable)
{
_compilationUnit = compilationUnit;
_definitionTable = definitionTable;
@@ -47,19 +47,19 @@ public static class QBEGenerator
foreach (var structDef in _definitionTable.GetStructs())
{
GenerateStructDefinition(structDef);
EmitStructDefinition(structDef);
_builder.AppendLine();
}
foreach (var funcDef in _compilationUnit.Definitions.OfType<LocalFuncDefinitionNode>())
{
GenerateFuncDefinition(FuncName(funcDef), funcDef.Parameters, funcDef.ReturnType, funcDef.Body, funcDef.Exported);
EmitFuncDefinition(FuncName(funcDef), funcDef.Parameters, funcDef.ReturnType, funcDef.Body, funcDef.Exported);
_builder.AppendLine();
}
while (_anonymousFunctions.TryDequeue(out var anon))
{
GenerateFuncDefinition(anon.Name, anon.Func.Parameters, anon.Func.ReturnType, anon.Func.Body, false);
EmitFuncDefinition(anon.Name, anon.Func.Parameters, anon.Func.ReturnType, anon.Func.Body, false);
_builder.AppendLine();
}
@@ -305,10 +305,15 @@ public static class QBEGenerator
private static bool IsPointerType(NubType type)
{
return type is NubStructType or NubArrayType or NubFixedArrayType;
if (type.IsVoid)
{
throw new InvalidOperationException($"{nameof(IsPointerType)} should not be called on void types");
}
return type is NubStructType or NubFixedArrayType;
}
private static void GenerateFuncDefinition(string name, List<FuncParameter> parameters, NubType returnType, BlockNode body, bool exported)
private static void EmitFuncDefinition(string name, List<FuncParameter> parameters, NubType returnType, BlockNode body, bool exported)
{
_variables.Clear();
_variableScopes.Clear();
@@ -414,10 +419,10 @@ public static class QBEGenerator
}
}
parameterVars.Add(new Variable(parameter.Name, new Ident(parameterName, parameter.Type)).Assign());
parameterVars.Add(new Variable(parameter.Name, new Ident(parameterName, parameter.Type)));
}
GenerateBlock(body, parameterVars);
EmitBlock(body, parameterVars);
if (body.Statements.LastOrDefault() is not ReturnNode)
{
@@ -430,7 +435,7 @@ public static class QBEGenerator
_builder.AppendLine("}");
}
private static void GenerateStructDefinition(StructDefinitionNode structDefinition)
private static void EmitStructDefinition(StructDefinitionNode structDefinition)
{
_builder.Append($"type {StructName(structDefinition)} = {{ ");
foreach (var structDefinitionField in structDefinition.Fields)
@@ -466,54 +471,54 @@ public static class QBEGenerator
_builder.AppendLine("}");
}
private static void GenerateStatement(StatementNode statement)
private static void EmitStatement(StatementNode statement)
{
switch (statement)
{
case ArrayIndexAssignmentNode arrayIndexAssignment:
GenerateArrayIndexAssignment(arrayIndexAssignment);
EmitArrayIndexAssignment(arrayIndexAssignment);
break;
case BreakNode:
GenerateBreak();
EmitBreak();
break;
case ContinueNode:
GenerateContinue();
EmitContinue();
break;
case DereferenceAssignmentNode dereferenceAssignment:
GenerateDereferenceAssignment(dereferenceAssignment);
EmitDereferenceAssignment(dereferenceAssignment);
break;
case IfNode ifStatement:
GenerateIf(ifStatement);
EmitIf(ifStatement);
break;
case MemberAssignmentNode memberAssignment:
GenerateMemberAssignment(memberAssignment);
EmitMemberAssignment(memberAssignment);
break;
case ReturnNode @return:
GenerateReturn(@return);
EmitReturn(@return);
break;
case StatementExpressionNode statementExpression:
GenerateExpression(statementExpression.Expression);
EmitExpression(statementExpression.Expression);
break;
case VariableDeclarationNode variableDeclaration:
GenerateVariableDeclaration(variableDeclaration);
EmitVariableDeclaration(variableDeclaration);
break;
case VariableAssignmentNode variableAssignment:
GenerateVariableAssignment(variableAssignment);
EmitVariableAssignment(variableAssignment);
break;
case WhileNode whileStatement:
GenerateWhile(whileStatement);
EmitWhile(whileStatement);
break;
default:
throw new ArgumentOutOfRangeException(nameof(statement));
}
}
private static void GenerateArrayIndexAssignment(ArrayIndexAssignmentNode arrayIndexAssignment)
private static void EmitArrayIndexAssignment(ArrayIndexAssignmentNode arrayIndexAssignment)
{
var array = Unwrap(GenerateExpression(arrayIndexAssignment.ArrayIndexAccess.Array));
var index = Unwrap(GenerateExpression(arrayIndexAssignment.ArrayIndexAccess.Index));
GenerateArrayBoundsCheck(array, index);
var value = Unwrap(GenerateExpression(arrayIndexAssignment.Value));
var array = EmitUnwrap(EmitExpression(arrayIndexAssignment.ArrayIndexAccess.Array));
var index = EmitUnwrap(EmitExpression(arrayIndexAssignment.ArrayIndexAccess.Index));
EmitArrayBoundsCheck(array, index);
var value = EmitUnwrap(EmitExpression(arrayIndexAssignment.Value));
switch (arrayIndexAssignment.ArrayIndexAccess.Array.Type)
{
@@ -524,7 +529,7 @@ public static class QBEGenerator
_builder.AppendLine($" {pointer} =l add {pointer}, 8");
_builder.AppendLine($" {pointer} =l add {array}, {pointer}");
GenerateCopy(arrayType.ElementType, value, pointer);
EmitCopy(arrayType.ElementType, value, pointer);
break;
}
case NubFixedArrayType fixedArrayType:
@@ -534,7 +539,7 @@ public static class QBEGenerator
_builder.AppendLine($" {pointer} =l add {pointer}, 8");
_builder.AppendLine($" {pointer} =l add {array}, {pointer}");
GenerateCopy(fixedArrayType.ElementType, value, pointer);
EmitCopy(fixedArrayType.ElementType, value, pointer);
break;
}
default:
@@ -544,7 +549,7 @@ public static class QBEGenerator
}
}
private static void GenerateBlock(BlockNode block, List<Variable>? variables = null)
private static void EmitBlock(BlockNode block, List<Variable>? variables = null)
{
_variableScopes.Push(_variables.Count);
if (variables != null)
@@ -557,7 +562,7 @@ public static class QBEGenerator
foreach (var statement in block.Statements.Where(_ => _codeIsReachable))
{
GenerateStatement(statement);
EmitStatement(statement);
}
var count = _variableScopes.Pop();
@@ -569,50 +574,50 @@ public static class QBEGenerator
_codeIsReachable = true;
}
private static void GenerateBreak()
private static void EmitBreak()
{
_builder.AppendLine($" jmp {_breakLabels.Peek()}");
_codeIsReachable = false;
}
private static void GenerateContinue()
private static void EmitContinue()
{
_builder.AppendLine($" jmp {_continueLabels.Peek()}");
_codeIsReachable = false;
}
private static void GenerateDereferenceAssignment(DereferenceAssignmentNode dereferenceAssignment)
private static void EmitDereferenceAssignment(DereferenceAssignmentNode dereferenceAssignment)
{
var pointer = Unwrap(GenerateExpression(dereferenceAssignment.Dereference.Expression));
var value = Unwrap(GenerateExpression(dereferenceAssignment.Value));
GenerateCopy(dereferenceAssignment.Value.Type, value, pointer);
var pointer = EmitUnwrap(EmitExpression(dereferenceAssignment.Dereference.Expression));
var value = EmitUnwrap(EmitExpression(dereferenceAssignment.Value));
EmitCopy(dereferenceAssignment.Value.Type, value, pointer);
}
private static void GenerateIf(IfNode ifStatement)
private static void EmitIf(IfNode ifStatement)
{
var trueLabel = LabelName();
var falseLabel = LabelName();
var endLabel = LabelName();
var result = Unwrap(GenerateExpression(ifStatement.Condition));
var result = EmitUnwrap(EmitExpression(ifStatement.Condition));
_builder.AppendLine($" jnz {result}, {trueLabel}, {falseLabel}");
_builder.AppendLine(trueLabel);
GenerateBlock(ifStatement.Body);
EmitBlock(ifStatement.Body);
_builder.AppendLine($" jmp {endLabel}");
_builder.AppendLine(falseLabel);
if (ifStatement.Else.HasValue)
{
ifStatement.Else.Value.Match
(
elseIfNode => GenerateIf(elseIfNode),
elseNode => GenerateBlock(elseNode)
elseIfNode => EmitIf(elseIfNode),
elseNode => EmitBlock(elseNode)
);
}
_builder.AppendLine(endLabel);
}
private static void GenerateMemberAssignment(MemberAssignmentNode memberAssignment)
private static void EmitMemberAssignment(MemberAssignmentNode memberAssignment)
{
var structType = memberAssignment.MemberAccess.Expression.Type as NubStructType;
Debug.Assert(structType != null);
@@ -620,21 +625,21 @@ public static class QBEGenerator
var structDefinition = _definitionTable.LookupStruct(structType.Namespace, structType.Name).GetValue();
var offset = OffsetOf(structDefinition, memberAssignment.MemberAccess.Member);
var item = Unwrap(GenerateExpression(memberAssignment.MemberAccess.Expression));
var item = EmitUnwrap(EmitExpression(memberAssignment.MemberAccess.Expression));
var pointer = VarName();
_builder.AppendLine($" {pointer} =l add {item}, {offset}");
var value = Unwrap(GenerateExpression(memberAssignment.Value));
var value = EmitUnwrap(EmitExpression(memberAssignment.Value));
GenerateCopy(memberAssignment.Value.Type, value, pointer);
EmitCopy(memberAssignment.Value.Type, value, pointer);
}
private static void GenerateReturn(ReturnNode @return)
private static void EmitReturn(ReturnNode @return)
{
if (@return.Value.HasValue)
{
var result = Unwrap(GenerateExpression(@return.Value.Value));
var result = EmitUnwrap(EmitExpression(@return.Value.Value));
_builder.AppendLine($" ret {result}");
}
else
@@ -643,22 +648,21 @@ public static class QBEGenerator
}
}
private static void GenerateVariableDeclaration(VariableDeclarationNode variableDeclaration)
private static void EmitVariableDeclaration(VariableDeclarationNode variableDeclaration)
{
var tmp = VarName();
_builder.AppendLine($" {tmp} =l alloc8 {SizeOf(variableDeclaration.Type)}");
_variables.Push(new Variable(variableDeclaration.Name, new Ident(tmp, variableDeclaration.Type)));
}
private static void GenerateVariableAssignment(VariableAssignmentNode variableAssignment)
private static void EmitVariableAssignment(VariableAssignmentNode variableAssignment)
{
var value = Unwrap(GenerateExpression(variableAssignment.Value));
var value = EmitUnwrap(EmitExpression(variableAssignment.Value));
var variable = _variables.Single(x => x.Name == variableAssignment.Identifier.Name);
GenerateCopy(variableAssignment.Value.Type, value, variable.Ident.Name);
variable.Assign();
EmitCopy(variableAssignment.Value.Type, value, variable.Ident.Name);
}
private static void GenerateWhile(WhileNode whileStatement)
private static void EmitWhile(WhileNode whileStatement)
{
var conditionLabel = LabelName();
var iterationLabel = LabelName();
@@ -669,9 +673,9 @@ public static class QBEGenerator
_builder.AppendLine($" jmp {conditionLabel}");
_builder.AppendLine(iterationLabel);
GenerateBlock(whileStatement.Body);
EmitBlock(whileStatement.Body);
_builder.AppendLine(conditionLabel);
var result = Unwrap(GenerateExpression(whileStatement.Condition));
var result = EmitUnwrap(EmitExpression(whileStatement.Condition));
_builder.AppendLine($" jnz {result}, {iterationLabel}, {endLabel}");
_builder.AppendLine(endLabel);
@@ -679,39 +683,39 @@ public static class QBEGenerator
_breakLabels.Pop();
}
private static Ident GenerateExpression(ExpressionNode expression)
private static Ident EmitExpression(ExpressionNode expression)
{
return expression switch
{
AddressOfNode addressOf => GenerateAddressOf(addressOf),
AnonymousFuncNode anonymousFunc => GenerateAnonymousFunc(anonymousFunc),
ArrayIndexAccessNode arrayIndex => GenerateArrayIndexAccess(arrayIndex),
ArrayInitializerNode arrayInitializer => GenerateArrayInitializer(arrayInitializer),
BinaryExpressionNode binaryExpression => GenerateBinaryExpression(binaryExpression),
DereferenceNode dereference => GenerateDereference(dereference),
FixedArrayInitializerNode fixedArrayInitializer => GenerateFixedArrayInitializer(fixedArrayInitializer),
FuncCallNode funcCallExpression => GenerateFuncCall(funcCallExpression),
IdentifierNode identifier => GenerateIdentifier(identifier),
LiteralNode literal => GenerateLiteral(literal),
StructInitializerNode structInitializer => GenerateStructInitializer(structInitializer),
UnaryExpressionNode unaryExpression => GenerateUnaryExpression(unaryExpression),
MemberAccessNode memberAccess => GenerateMemberAccess(memberAccess),
AddressOfNode addressOf => EmitAddressOf(addressOf),
AnonymousFuncNode anonymousFunc => EmitAnonymousFunc(anonymousFunc),
ArrayIndexAccessNode arrayIndex => EmitArrayIndexAccess(arrayIndex),
ArrayInitializerNode arrayInitializer => EmitArrayInitializer(arrayInitializer),
BinaryExpressionNode binaryExpression => EmitBinaryExpression(binaryExpression),
DereferenceNode dereference => EmitDereference(dereference),
FixedArrayInitializerNode fixedArrayInitializer => EmitFixedArrayInitializer(fixedArrayInitializer),
FuncCallNode funcCallExpression => EmitFuncCall(funcCallExpression),
IdentifierNode identifier => EmitIdentifier(identifier),
LiteralNode literal => EmitLiteral(literal),
StructInitializerNode structInitializer => EmitStructInitializer(structInitializer),
UnaryExpressionNode unaryExpression => EmitUnaryExpression(unaryExpression),
MemberAccessNode memberAccess => EmitMemberAccess(memberAccess),
_ => throw new ArgumentOutOfRangeException(nameof(expression))
};
}
private static Ident GenerateAnonymousFunc(AnonymousFuncNode anonymousFunc)
private static Ident EmitAnonymousFunc(AnonymousFuncNode anonymousFunc)
{
var name = $"$anon_func{++_anonymousFuncIndex}";
_anonymousFunctions.Enqueue((anonymousFunc, name));
return new Ident(name, anonymousFunc.Type, IdentKind.Func);
}
private static string GenerateArrayIndexPointer(ArrayIndexAccessNode arrayIndexAccess)
private static string EmitArrayIndexPointer(ArrayIndexAccessNode arrayIndexAccess)
{
var array = Unwrap(GenerateExpression(arrayIndexAccess.Array));
var index = Unwrap(GenerateExpression(arrayIndexAccess.Index));
GenerateArrayBoundsCheck(array, index);
var array = EmitUnwrap(EmitExpression(arrayIndexAccess.Array));
var index = EmitUnwrap(EmitExpression(arrayIndexAccess.Index));
EmitArrayBoundsCheck(array, index);
var elementType = arrayIndexAccess.Array.Type switch
{
@@ -727,15 +731,15 @@ public static class QBEGenerator
return pointer;
}
private static Ident GenerateArrayIndexAccess(ArrayIndexAccessNode arrayIndexAccess)
private static Ident EmitArrayIndexAccess(ArrayIndexAccessNode arrayIndexAccess)
{
var pointer = GenerateArrayIndexPointer(arrayIndexAccess);
var pointer = EmitArrayIndexPointer(arrayIndexAccess);
var outputName = VarName();
_builder.AppendLine($" {outputName} {QBEAssign(arrayIndexAccess.Type)} {QBELoad(arrayIndexAccess.Type)} {pointer}");
return new Ident(outputName, arrayIndexAccess.Type);
}
private static void GenerateArrayBoundsCheck(string array, string index)
private static void EmitArrayBoundsCheck(string array, string index)
{
var count = VarName();
_builder.AppendLine($" {count} =l loadl {array}");
@@ -759,9 +763,9 @@ public static class QBEGenerator
_builder.AppendLine(notOobLabel);
}
private static Ident GenerateArrayInitializer(ArrayInitializerNode arrayInitializer)
private static Ident EmitArrayInitializer(ArrayInitializerNode arrayInitializer)
{
var capacity = Unwrap(GenerateExpression(arrayInitializer.Capacity));
var capacity = EmitUnwrap(EmitExpression(arrayInitializer.Capacity));
var elementSize = SizeOf(arrayInitializer.ElementType);
var capacityInBytes = VarName();
@@ -780,23 +784,23 @@ public static class QBEGenerator
return new Ident(arrayPointer, arrayInitializer.Type);
}
private static Ident GenerateDereference(DereferenceNode dereference)
private static Ident EmitDereference(DereferenceNode dereference)
{
var result = Unwrap(GenerateExpression(dereference.Expression));
var result = EmitUnwrap(EmitExpression(dereference.Expression));
var outputName = VarName();
_builder.AppendLine($" {outputName} {QBEAssign(dereference.Type)} {QBELoad(dereference.Type)} {result}");
return new Ident(outputName, dereference.Type);
}
private static Ident GenerateAddressOf(AddressOfNode addressOf)
private static Ident EmitAddressOf(AddressOfNode addressOf)
{
switch (addressOf.Expression)
{
case ArrayIndexAccessNode arrayIndexAccess:
var pointer = GenerateArrayIndexPointer(arrayIndexAccess);
var pointer = EmitArrayIndexPointer(arrayIndexAccess);
return new Ident(pointer, addressOf.Type);
case DereferenceNode dereference:
return GenerateExpression(dereference.Expression);
return EmitExpression(dereference.Expression);
case IdentifierNode identifier:
if (identifier.Namespace.HasValue)
{
@@ -805,17 +809,17 @@ public static class QBEGenerator
return _variables.Single(x => x.Name == identifier.Name).Ident;
case MemberAccessNode memberAccess:
var ptr = GenerateMemberAccessPointer(memberAccess);
var ptr = EmitMemberAccessPointer(memberAccess);
return new Ident(ptr, addressOf.Type);
default:
throw new ArgumentOutOfRangeException();
}
}
private static Ident GenerateBinaryExpression(BinaryExpressionNode binaryExpression)
private static Ident EmitBinaryExpression(BinaryExpressionNode binaryExpression)
{
var left = Unwrap(GenerateExpression(binaryExpression.Left));
var right = Unwrap(GenerateExpression(binaryExpression.Right));
var left = EmitUnwrap(EmitExpression(binaryExpression.Left));
var right = EmitUnwrap(EmitExpression(binaryExpression.Right));
var outputName = VarName();
var output = new Ident(outputName, binaryExpression.Type);
@@ -1026,7 +1030,7 @@ public static class QBEGenerator
throw new NotSupportedException($"Binary operator {binaryExpression.Operator} for types {binaryExpression.Left.Type} and {binaryExpression.Right.Type} not supported");
}
private static Ident GenerateIdentifier(IdentifierNode identifier)
private static Ident EmitIdentifier(IdentifierNode identifier)
{
if (_definitionTable.LookupFunc(identifier.Namespace.Or(_compilationUnit.Namespace), identifier.Name).TryGetValue(out var func))
{
@@ -1035,23 +1039,13 @@ public static class QBEGenerator
if (!identifier.Namespace.HasValue)
{
var variable = _variables.Single(v => v.Name == identifier.Name);
if (IsPointerType(identifier.Type))
{
return variable.Ident;
}
else
{
var output = VarName();
_builder.AppendLine($" {output} {QBEAssign(identifier.Type)} {QBELoad(identifier.Type)} {variable.Ident}");
return new Ident(output, identifier.Type);
}
return _variables.Single(v => v.Name == identifier.Name).Ident;
}
throw new UnreachableException();
}
private static Ident GenerateLiteral(LiteralNode literal)
private static Ident EmitLiteral(LiteralNode literal)
{
if (literal.Type.IsInteger)
{
@@ -1092,7 +1086,7 @@ public static class QBEGenerator
}
}
private static Ident GenerateStructInitializer(StructInitializerNode structInitializer)
private static Ident EmitStructInitializer(StructInitializerNode structInitializer)
{
var structDefinition = _definitionTable.LookupStruct(structInitializer.StructType.Namespace, structInitializer.StructType.Name).GetValue();
@@ -1106,17 +1100,17 @@ public static class QBEGenerator
if (structInitializer.Initializers.TryGetValue(field.Name, out var fieldValue))
{
var value = Unwrap(GenerateExpression(fieldValue));
var value = EmitUnwrap(EmitExpression(fieldValue));
var pointer = VarName();
_builder.AppendLine($" {pointer} =l add {output}, {offset}");
GenerateCopy(field.Type, value, pointer);
EmitCopy(field.Type, value, pointer);
}
else if (field.Value.HasValue)
{
var value = Unwrap(GenerateExpression(field.Value.Value));
var value = EmitUnwrap(EmitExpression(field.Value.Value));
var pointer = VarName();
_builder.AppendLine($" {pointer} =l add {output}, {offset}");
GenerateCopy(field.Type, value, pointer);
EmitCopy(field.Type, value, pointer);
}
else
{
@@ -1127,9 +1121,9 @@ public static class QBEGenerator
return new Ident(output, structInitializer.StructType);
}
private static Ident GenerateUnaryExpression(UnaryExpressionNode unaryExpression)
private static Ident EmitUnaryExpression(UnaryExpressionNode unaryExpression)
{
var operand = Unwrap(GenerateExpression(unaryExpression.Operand));
var operand = EmitUnwrap(EmitExpression(unaryExpression.Operand));
var outputName = VarName();
switch (unaryExpression.Operator)
@@ -1174,9 +1168,9 @@ public static class QBEGenerator
throw new NotSupportedException($"Unary operator {unaryExpression.Operator} for type {unaryExpression.Operand.Type} not supported");
}
private static string GenerateMemberAccessPointer(MemberAccessNode memberAccess)
private static string EmitMemberAccessPointer(MemberAccessNode memberAccess)
{
var item = Unwrap(GenerateExpression(memberAccess.Expression));
var item = EmitUnwrap(EmitExpression(memberAccess.Expression));
switch (memberAccess.Expression.Type)
{
case NubArrayType:
@@ -1204,16 +1198,16 @@ public static class QBEGenerator
}
}
private static Ident GenerateMemberAccess(MemberAccessNode memberAccess)
private static Ident EmitMemberAccess(MemberAccessNode memberAccess)
{
var pointer = GenerateMemberAccessPointer(memberAccess);
var pointer = EmitMemberAccessPointer(memberAccess);
var output = VarName();
_builder.AppendLine($" {output} {QBEAssign(memberAccess.Type)} {QBELoad(memberAccess.Type)} {pointer}");
return new Ident(output, memberAccess.Type);
}
private static Ident GenerateFixedArrayInitializer(FixedArrayInitializerNode fixedArrayInitializer)
private static Ident EmitFixedArrayInitializer(FixedArrayInitializerNode fixedArrayInitializer)
{
var totalSize = SizeOf(fixedArrayInitializer.Type);
var outputName = VarName();
@@ -1230,7 +1224,7 @@ public static class QBEGenerator
return new Ident(outputName, fixedArrayInitializer.Type);
}
private static Ident GenerateFuncCall(FuncCallNode funcCall)
private static Ident EmitFuncCall(FuncCallNode funcCall)
{
var funcType = (NubFuncType)funcCall.Expression.Type;
@@ -1239,7 +1233,7 @@ public static class QBEGenerator
for (var i = 0; i < funcCall.Parameters.Count; i++)
{
var parameter = funcCall.Parameters[i];
var result = Unwrap(GenerateExpression(parameter));
var result = EmitUnwrap(EmitExpression(parameter));
var qbeType = parameter.Type switch
{
@@ -1269,7 +1263,7 @@ public static class QBEGenerator
parameterStrings.Add($"{qbeType} {result}");
}
var funcPointer = Unwrap(GenerateExpression(funcCall.Expression));
var funcPointer = EmitUnwrap(EmitExpression(funcCall.Expression));
if (funcType.ReturnType is not NubVoidType)
{
@@ -1284,19 +1278,19 @@ public static class QBEGenerator
}
}
private static void GenerateCopy(NubType type, string source, string destinationPtr)
private static void EmitCopy(NubType type, string sourcePtr, string destinationPtr)
{
if (SizeOf(type) > 8)
{
_builder.AppendLine($" blit {source}, {destinationPtr}, {SizeOf(type)}");
_builder.AppendLine($" blit {sourcePtr}, {destinationPtr}, {SizeOf(type)}");
}
else
{
_builder.AppendLine($" {QBEStore(type)} {source}, {destinationPtr}");
_builder.AppendLine($" {QBEStore(type)} {sourcePtr}, {destinationPtr}");
}
}
private static string Unwrap(Ident ident)
private static string EmitUnwrap(Ident ident)
{
if (ident.Type.IsVoid)
{
@@ -1309,7 +1303,7 @@ public static class QBEGenerator
case IdentKind.Literal:
return ident.Name;
case IdentKind.Variable:
if (SizeOf(ident.Type) > 8)
if (IsPointerType(ident.Type))
{
return ident.Name;
}
@@ -1329,13 +1323,6 @@ internal class Variable(string name, Ident ident)
{
public string Name { get; } = name;
public Ident Ident { get; } = ident;
public bool Initialized { get; private set; }
public Variable Assign()
{
Initialized = true;
return this;
}
}
internal class Ident(string name, NubType type, IdentKind kind = IdentKind.Variable)
@@ -1343,6 +1330,11 @@ internal class Ident(string name, NubType type, IdentKind kind = IdentKind.Varia
public string Name { get; } = name;
public NubType Type { get; } = type;
public IdentKind Kind { get; } = kind;
public override string ToString()
{
throw new InvalidOperationException();
}
}
internal enum IdentKind