translator: rearrange functions in LLVMBuilder for readability
This commit is contained in:
Alexey Stepanov
@@ -18,6 +18,118 @@ class LLVMBuilder(val arm: Boolean = false) {
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initBuilder()
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}
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fun addLLVMCodeToLocalPlace(code: String) =
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localCode.appendln(code)
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fun addLLVMCodeToGlobalPlace(code: String) =
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globalCode.appendln(code)
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fun addComment(comment: String) =
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addLLVMCodeToLocalPlace("; " + comment)
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fun addStartExpression() =
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addLLVMCodeToLocalPlace("{")
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fun addEndExpression() =
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addLLVMCodeToLocalPlace("}")
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fun addAssignment(lhs: LLVMVariable, rhs: LLVMNode) =
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addLLVMCodeToLocalPlace("$lhs = $rhs")
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fun addReturnOperator(llvmVariable: LLVMSingleValue) =
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addLLVMCodeToLocalPlace("ret ${llvmVariable.type} $llvmVariable")
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fun addAnyReturn(type: LLVMType, value: String = type.defaultValue, pointer: Int = 0) =
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addLLVMCodeToLocalPlace("ret $type${"*".repeat(pointer)} $value")
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fun addStringConstant(variable: LLVMVariable, value: String) =
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addLLVMCodeToGlobalPlace("$variable = private unnamed_addr constant ${(variable.type as LLVMStringType).fullArrayType} c\"${value.replace("\"", "\\\"")}\\00\", align 1")
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fun addVariableByRef(targetVariable: LLVMVariable, sourceVariable: LLVMVariable, store: Boolean) {
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addLLVMCodeToLocalPlace("$targetVariable = alloca ${sourceVariable.pointedType}, align ${sourceVariable.type.align}")
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if (store) {
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addLLVMCodeToLocalPlace("store ${sourceVariable.pointedType} $sourceVariable, ${targetVariable.pointedType} $targetVariable, align ${targetVariable.type.align}")
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}
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}
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fun addCondition(condition: LLVMSingleValue, thenLabel: LLVMLabel, elseLabel: LLVMLabel) =
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addLLVMCodeToLocalPlace("br ${condition.pointedType} $condition, label $thenLabel, label $elseLabel")
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fun addUnconditionalJump(label: LLVMLabel) =
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addLLVMCodeToLocalPlace("br label $label")
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fun addExceptionCall(exceptionName: String) {
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val exception = exceptions[exceptionName]
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val printResult = getNewVariable(LLVMIntType(), pointer = 0)
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addLLVMCodeToLocalPlace("$printResult = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds (${(exception!!.type as LLVMStringType).fullArrayType}* $exception, i32 0, i32 0))")
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addFunctionCall(LLVMVariable("abort", LLVMVoidType(), scope = LLVMVariableScope()), emptyList())
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}
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fun addFunctionCall(functionName: LLVMVariable, arguments: List<LLVMVariable>) =
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addLLVMCodeToLocalPlace("call ${functionName.type} $functionName(${arguments.joinToString { it -> "${it.type} $it" }})")
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fun allocStackVar(target: LLVMVariable, asValue: Boolean = false, pointer: Boolean = false) {
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val type = if (asValue) target.type.toString() else target.pointedType
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addLLVMCodeToLocalPlace("$target = alloca ${if (pointer) type.removeSuffix("*") else type}, align ${target.type.align}")
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}
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fun allocStaticVar(target: LLVMVariable, asValue: Boolean = false, pointer: Boolean = false) {
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val allocated = getNewVariable(LLVMCharType(), pointer = 1)
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val size = if ((target.pointer >= 2) || (target.pointer >= 1 && !pointer)) TranslationState.POINTER_SIZE else target.type.size
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addLLVMCodeToLocalPlace("$allocated = call i8* @malloc_heap(i32 $size)")
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addLLVMCodeToLocalPlace("$target = bitcast ${allocated.pointedType} $allocated to ${if (asValue) target.type.toString() else target.pointedType}" + if (pointer) "" else "*")
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}
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fun addGlobalInitialize(target: LLVMVariable, fields: ArrayList<LLVMVariable>, initializers: Map<LLVMVariable, String>, classType: LLVMType) {
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val code = "$target = internal global $classType { ${
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fields.map { it.pointedType + " " + if (initializers.containsKey(it)) initializers[it] else "0" }.joinToString()
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} }, align ${classType.align}"
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addLLVMCodeToGlobalPlace(code)
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}
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fun bitcast(src: LLVMVariable, llvmType: LLVMVariable): LLVMVariable {
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val empty = getNewVariable(llvmType.type, pointer = llvmType.pointer)
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addLLVMCodeToLocalPlace("$empty = bitcast ${src.pointedType} $src to ${llvmType.pointedType}")
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return empty
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}
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fun clean() {
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localCode = StringBuilder()
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globalCode = StringBuilder()
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initBuilder()
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}
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fun convertVariableToType(variable: LLVMSingleValue, targetType: LLVMType): LLVMSingleValue {
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var resultVariable = variable
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if (variable.type != targetType) {
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val convertedExpression = targetType.convertFrom(variable)
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resultVariable = storeExpression(convertedExpression)
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}
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return resultVariable
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}
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fun copyVariable(from: LLVMVariable, to: LLVMVariable) =
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when {
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from.type is LLVMStringType && !from.type.isLoaded -> storeString(to, from, 0)
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else -> copyVariableValue(to, from)
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}
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fun createClass(name: String, fields: List<LLVMVariable>) =
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addLLVMCodeToGlobalPlace("%class.$name = type { ${fields.map { it.pointedType }.joinToString()} }")
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fun declareEntryPoint(name: String) {
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addLLVMCodeToLocalPlace("define weak void @main()")
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addStartExpression()
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addFunctionCall(LLVMVariable(name, LLVMVoidType(), scope = LLVMVariableScope()), listOf())
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addAnyReturn(LLVMVoidType())
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addEndExpression()
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}
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fun defineGlobalVariable(variable: LLVMVariable, defaultValue: String = variable.type.defaultValue) =
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addLLVMCodeToLocalPlace("$variable = global ${variable.pointedType} $defaultValue, align ${variable.type.align}")
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fun getNewVariable(type: LLVMType, pointer: Int = 0, kotlinName: String? = null, scope: LLVMScope = LLVMRegisterScope(), prefix: String = "var"): LLVMVariable {
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variableCount++
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return LLVMVariable("$prefix$variableCount", type, kotlinName, scope, pointer)
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@@ -28,17 +140,47 @@ class LLVMBuilder(val arm: Boolean = false) {
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return LLVMLabel("label.$prefix.$labelCount", scope)
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}
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fun addLLVMCodeToLocalPlace(code: String) =
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localCode.appendln(code)
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fun loadArgsIfRequired(names: List<LLVMSingleValue>, args: List<LLVMVariable>) =
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names.mapIndexed(fun(i: Int, value: LLVMSingleValue): LLVMSingleValue {
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return receivePointedArgument(value, args[i].pointer)
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}).toList()
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fun addLLVMCodeToGlobalPlace(code: String) =
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globalCode.appendln(code)
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fun loadArgument(llvmVariable: LLVMVariable, store: Boolean = true): LLVMVariable {
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val allocVar = LLVMVariable("${llvmVariable.label}.addr", llvmVariable.type, llvmVariable.kotlinName, LLVMRegisterScope(), pointer = llvmVariable.pointer + 1)
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addVariableByRef(allocVar, llvmVariable, store)
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return allocVar
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}
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fun addStartExpression() =
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addLLVMCodeToLocalPlace("{")
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fun loadClassField(target: LLVMVariable, source: LLVMVariable, offset: Int) =
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addLLVMCodeToLocalPlace("$target = getelementptr inbounds ${source.pointedType} $source, i32 0, i32 $offset")
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fun addEndExpression() =
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addLLVMCodeToLocalPlace("}")
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fun loadVariableOffset(target: LLVMVariable, source: LLVMVariable, index: LLVMConstant) =
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addLLVMCodeToLocalPlace("$target = getelementptr inbounds ${source.type} $source, ${index.type} ${index.value}")
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fun loadAndGetVariable(source: LLVMVariable): LLVMVariable {
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assert(source.pointer > 0)
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val target = getNewVariable(source.type, source.pointer - 1, source.kotlinName)
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addLLVMCodeToLocalPlace("$target = load ${source.pointedType} $source, align ${target.type.align}")
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return target
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}
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fun makeStructInitializer(args: List<LLVMVariable>, values: List<String>)
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= "{ ${args.mapIndexed { i: Int, variable: LLVMVariable -> "${variable.type} ${values[i]}" }.joinToString()} }"
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fun markWithLabel(label: LLVMLabel?) {
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if (label != null)
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addLLVMCodeToLocalPlace("${label.label}:")
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}
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fun memcpy(castedDst: LLVMVariable, castedSrc: LLVMVariable, size: Int, align: Int = 4, volatile: Boolean = false) =
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addLLVMCodeToLocalPlace("call void @llvm.memcpy.p0i8.p0i8.i64(i8* $castedDst, i8* $castedSrc, i64 $size, i32 $align, i1 $volatile)")
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fun nullCheck(variable: LLVMVariable): LLVMVariable {
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val result = getNewVariable(LLVMBooleanType(), pointer = 0)
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val loaded = loadAndGetVariable(variable)
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addLLVMCodeToLocalPlace("$result = icmp eq ${loaded.pointedType} null, $loaded")
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return result
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}
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fun receiveNativeValue(firstOp: LLVMSingleValue): LLVMSingleValue =
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when {
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@@ -47,11 +189,6 @@ class LLVMBuilder(val arm: Boolean = false) {
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else -> throw UnexpectedException("Unknown inheritor of LLVMSingleValue")
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}
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fun loadArgsIfRequired(names: List<LLVMSingleValue>, args: List<LLVMVariable>) =
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names.mapIndexed(fun(i: Int, value: LLVMSingleValue): LLVMSingleValue {
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return receivePointedArgument(value, args[i].pointer)
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}).toList()
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fun receivePointedArgument(value: LLVMSingleValue, pointer: Int): LLVMSingleValue {
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var result = value
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@@ -69,53 +206,11 @@ class LLVMBuilder(val arm: Boolean = false) {
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return result
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}
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fun clean() {
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localCode = StringBuilder()
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globalCode = StringBuilder()
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initBuilder()
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}
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fun addAssignment(lhs: LLVMVariable, rhs: LLVMNode) =
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addLLVMCodeToLocalPlace("$lhs = $rhs")
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fun addReturnOperator(llvmVariable: LLVMSingleValue) =
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addLLVMCodeToLocalPlace("ret ${llvmVariable.type} $llvmVariable")
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fun addAnyReturn(type: LLVMType, value: String = type.defaultValue, pointer: Int = 0) =
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addLLVMCodeToLocalPlace("ret $type${"*".repeat(pointer)} $value")
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fun addStringConstant(variable: LLVMVariable, value: String) =
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addLLVMCodeToGlobalPlace("$variable = private unnamed_addr constant ${(variable.type as LLVMStringType).fullArrayType} c\"${value.replace("\"", "\\\"")}\\00\", align 1")
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fun convertVariableToType(variable: LLVMSingleValue, targetType: LLVMType): LLVMSingleValue {
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var resultVariable = variable
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if (variable.type != targetType) {
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val convertedExpression = targetType.convertFrom(variable)
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resultVariable = storeExpression(convertedExpression)
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}
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return resultVariable
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}
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fun addGlobalInitialize(target: LLVMVariable, fields: ArrayList<LLVMVariable>, initializers: Map<LLVMVariable, String>, classType: LLVMType) {
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val code = "$target = internal global $classType { ${
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fields.map { it.pointedType + " " + if (initializers.containsKey(it)) initializers[it] else "0" }.joinToString()
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} }, align ${classType.align}"
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globalCode.appendln(code)
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}
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fun storeString(target: LLVMVariable, source: LLVMVariable, offset: Int) {
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val code = "store ${target.type} getelementptr inbounds (" +
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"${(source.type as LLVMStringType).fullArrayType}* $source, i32 0, i32 $offset), ${target.pointedType} $target, align ${source.type.align}"
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(target.type as LLVMStringType).isLoaded = true
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localCode.appendln(code)
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}
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fun loadClassField(target: LLVMVariable, source: LLVMVariable, offset: Int) =
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addLLVMCodeToLocalPlace("$target = getelementptr inbounds ${source.pointedType} $source, i32 0, i32 $offset")
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fun markWithLabel(label: LLVMLabel?) {
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if (label != null)
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addLLVMCodeToLocalPlace("${label.label}:")
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addLLVMCodeToLocalPlace(code)
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}
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fun storeVariable(target: LLVMSingleValue, source: LLVMSingleValue) {
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@@ -135,106 +230,17 @@ class LLVMBuilder(val arm: Boolean = false) {
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fun storeNull(result: LLVMVariable) =
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addLLVMCodeToLocalPlace("store ${result.pointedType.dropLast(1)} null, ${result.pointedType} $result, align ${TranslationState.POINTER_ALIGN}")
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fun nullCheck(variable: LLVMVariable): LLVMVariable {
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val result = getNewVariable(LLVMBooleanType(), pointer = 0)
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val loaded = loadAndGetVariable(variable)
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addLLVMCodeToLocalPlace("$result = icmp eq ${loaded.pointedType} null, $loaded")
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return result
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}
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fun addComment(comment: String) =
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addLLVMCodeToLocalPlace("; " + comment)
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fun loadVariableOffset(target: LLVMVariable, source: LLVMVariable, index: LLVMConstant) =
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addLLVMCodeToLocalPlace("$target = getelementptr inbounds ${source.type} $source, ${index.type} ${index.value}")
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fun copyVariable(from: LLVMVariable, to: LLVMVariable) =
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when {
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from.type is LLVMStringType && !from.type.isLoaded -> storeString(to, from, 0)
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else -> copyVariableValue(to, from)
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}
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fun loadArgument(llvmVariable: LLVMVariable, store: Boolean = true): LLVMVariable {
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val allocVar = LLVMVariable("${llvmVariable.label}.addr", llvmVariable.type, llvmVariable.kotlinName, LLVMRegisterScope(), pointer = llvmVariable.pointer + 1)
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addVariableByRef(allocVar, llvmVariable, store)
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return allocVar
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}
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fun allocStackVar(target: LLVMVariable, asValue: Boolean = false, pointer: Boolean = false) {
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val type = if (asValue) target.type.toString() else target.pointedType
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addLLVMCodeToLocalPlace("$target = alloca ${if (pointer) type.removeSuffix("*") else type}, align ${target.type.align}")
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}
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fun allocStaticVar(target: LLVMVariable, asValue: Boolean = false, pointer: Boolean = false) {
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val allocated = getNewVariable(LLVMCharType(), pointer = 1)
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val size = if ((target.pointer >= 2) || (target.pointer >= 1 && !pointer)) TranslationState.POINTER_SIZE else target.type.size
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addLLVMCodeToLocalPlace("$allocated = call i8* @malloc_heap(i32 $size)")
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addLLVMCodeToLocalPlace("$target = bitcast ${allocated.pointedType} $allocated to ${if (asValue) target.type.toString() else target.pointedType}" + if (pointer) "" else "*")
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}
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fun addVariableByRef(targetVariable: LLVMVariable, sourceVariable: LLVMVariable, store: Boolean) {
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addLLVMCodeToLocalPlace("$targetVariable = alloca ${sourceVariable.pointedType}, align ${sourceVariable.type.align}")
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if (store) {
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addLLVMCodeToLocalPlace("store ${sourceVariable.pointedType} $sourceVariable, ${targetVariable.pointedType} $targetVariable, align ${targetVariable.type.align}")
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}
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}
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fun defineGlobalVariable(variable: LLVMVariable, defaultValue: String = variable.type.defaultValue) =
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addLLVMCodeToLocalPlace("$variable = global ${variable.pointedType} $defaultValue, align ${variable.type.align}")
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fun makeStructInitializer(args: List<LLVMVariable>, values: List<String>)
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= "{ ${args.mapIndexed { i: Int, variable: LLVMVariable -> "${variable.type} ${values[i]}" }.joinToString()} }"
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fun loadAndGetVariable(source: LLVMVariable): LLVMVariable {
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assert(source.pointer > 0)
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val target = getNewVariable(source.type, source.pointer - 1, source.kotlinName)
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addLLVMCodeToLocalPlace("$target = load ${source.pointedType} $source, align ${target.type.align}")
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return target
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}
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fun addCondition(condition: LLVMSingleValue, thenLabel: LLVMLabel, elseLabel: LLVMLabel) =
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addLLVMCodeToLocalPlace("br ${condition.pointedType} $condition, label $thenLabel, label $elseLabel")
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fun addUnconditionalJump(label: LLVMLabel) =
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addLLVMCodeToLocalPlace("br label $label")
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fun createClass(name: String, fields: List<LLVMVariable>) =
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addLLVMCodeToGlobalPlace("%class.$name = type { ${fields.map { it.pointedType }.joinToString()} }")
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fun bitcast(src: LLVMVariable, llvmType: LLVMVariable): LLVMVariable {
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val empty = getNewVariable(llvmType.type, pointer = llvmType.pointer)
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addLLVMCodeToLocalPlace("$empty = bitcast ${src.pointedType} $src to ${llvmType.pointedType}")
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return empty
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}
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fun addExceptionCall(exceptionName: String) {
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val exception = exceptions[exceptionName]
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val printResult = getNewVariable(LLVMIntType(), pointer = 0)
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addLLVMCodeToLocalPlace("$printResult = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds (${(exception!!.type as LLVMStringType).fullArrayType}* $exception, i32 0, i32 0))")
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addFunctionCall(LLVMVariable("abort", LLVMVoidType(), scope = LLVMVariableScope()), emptyList())
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}
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fun addFunctionCall(functionName: LLVMVariable, arguments: List<LLVMVariable>) =
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addLLVMCodeToLocalPlace("call ${functionName.type} $functionName(${arguments.joinToString { it -> "${it.type} $it" }})")
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fun memcpy(castedDst: LLVMVariable, castedSrc: LLVMVariable, size: Int, align: Int = 4, volatile: Boolean = false) =
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addLLVMCodeToLocalPlace("call void @llvm.memcpy.p0i8.p0i8.i64(i8* $castedDst, i8* $castedSrc, i64 $size, i32 $align, i1 $volatile)")
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fun declareEntryPoint(name: String) {
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addLLVMCodeToLocalPlace("define weak void @main()")
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addStartExpression()
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addFunctionCall(LLVMVariable(name, LLVMVoidType(), scope = LLVMVariableScope()), listOf())
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addAnyReturn(LLVMVoidType())
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addEndExpression()
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}
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override fun toString() = globalCode.toString() + localCode.toString()
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private fun copyVariableValue(target: LLVMVariable, source: LLVMVariable) {
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var from = source
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if (source.pointer > 0) {
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from = getNewVariable(source.type, source.pointer)
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addLLVMCodeToLocalPlace("$from = load ${source.pointedType} $source, align ${from.type.align}")
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}
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addLLVMCodeToLocalPlace("store ${target.type} $from, ${target.pointedType} $target, align ${from.type.align}")
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}
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private fun initBuilder() {
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val declares = arrayOf(
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"declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1)",
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@@ -260,13 +266,4 @@ class LLVMBuilder(val arm: Boolean = false) {
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return result
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}
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private fun copyVariableValue(target: LLVMVariable, source: LLVMVariable) {
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var from = source
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if (source.pointer > 0) {
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from = getNewVariable(source.type, source.pointer)
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addLLVMCodeToLocalPlace("$from = load ${source.pointedType} $source, align ${from.type.align}")
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}
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addLLVMCodeToLocalPlace("store ${target.type} $from, ${target.pointedType} $target, align ${from.type.align}")
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}
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}
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@@ -12,25 +12,25 @@ class LLVMByteType() : LLVMType() {
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override val defaultValue = "0"
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override val isPrimitive = true
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override fun operatorLt(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue): LLVMExpression =
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override fun operatorLt(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue) =
|
||||
LLVMExpression(LLVMBooleanType(), "icmp slt i8 $firstOp, $secondOp")
|
||||
|
||||
override fun operatorGt(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue): LLVMExpression =
|
||||
override fun operatorGt(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue) =
|
||||
LLVMExpression(LLVMBooleanType(), "icmp sgt i8 $firstOp, $secondOp")
|
||||
|
||||
override fun operatorLeq(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue): LLVMExpression =
|
||||
override fun operatorLeq(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue) =
|
||||
LLVMExpression(LLVMBooleanType(), "icmp sle i8 $firstOp, $secondOp")
|
||||
|
||||
override fun operatorGeq(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue): LLVMExpression =
|
||||
override fun operatorGeq(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue) =
|
||||
LLVMExpression(LLVMBooleanType(), "icmp sge i8 $firstOp, $secondOp")
|
||||
|
||||
override fun operatorEq(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue): LLVMExpression =
|
||||
override fun operatorEq(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue) =
|
||||
LLVMExpression(LLVMBooleanType(), "icmp eq i8" + (if ((firstOp.pointer > 0) || (secondOp.pointer > 0)) "*" else "") + " $firstOp, $secondOp")
|
||||
|
||||
override fun operatorNeq(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue): LLVMExpression =
|
||||
override fun operatorNeq(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue) =
|
||||
LLVMExpression(LLVMBooleanType(), "icmp ne i8" + (if ((firstOp.pointer > 0) || (secondOp.pointer > 0)) "*" else "") + " $firstOp, $secondOp")
|
||||
|
||||
override fun operatorMod(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue): LLVMExpression =
|
||||
override fun operatorMod(firstOp: LLVMSingleValue, secondOp: LLVMSingleValue) =
|
||||
LLVMExpression(LLVMByteType(), "srem i8 $firstOp, $secondOp")
|
||||
|
||||
override fun equals(other: Any?) =
|
||||
|
||||
Reference in New Issue
Block a user