diff --git a/compiler/testData/codegen/box/classes/superConstructorCallWithComplexArg.kt b/compiler/testData/codegen/box/classes/superConstructorCallWithComplexArg.kt
new file mode 100644
index 00000000000..1d2c6d4646a
--- /dev/null
+++ b/compiler/testData/codegen/box/classes/superConstructorCallWithComplexArg.kt
@@ -0,0 +1,19 @@
+var log = ""
+
+open class Base(val s: String)
+
+class A(i: Int) : Base("O" + if (i == 23) {
+    log += "logged"
+    "K"
+}
+else {
+    "fail"
+})
+
+fun box(): String {
+    val result = A(23).s
+    if (result != "OK") return "fail: $result"
+    if (log != "logged") return "fail log: $log"
+
+    return "OK"
+}
\ No newline at end of file
diff --git a/compiler/testData/codegen/box/secondaryConstructors/delegateWithComplexExpression.kt b/compiler/testData/codegen/box/secondaryConstructors/delegateWithComplexExpression.kt
new file mode 100644
index 00000000000..999d944d7f1
--- /dev/null
+++ b/compiler/testData/codegen/box/secondaryConstructors/delegateWithComplexExpression.kt
@@ -0,0 +1,46 @@
+var log = ""
+
+open class Base(val s: String)
+
+class A(s: String) : Base(s) {
+    constructor(i: Int) : this("O" + if (i == 23) {
+            log += "logged1;"
+            "K"
+        }
+        else {
+            "fail"
+        })
+
+    constructor(i: Long) : this(if (i == 23L) {
+        log += "logged2;"
+        23
+    }
+    else {
+        42
+    })
+}
+
+class B : Base {
+    constructor(i: Int) : super("O" + if (i == 23) {
+        log += "logged3;"
+        "K"
+    }
+    else {
+        "fail"
+    })
+}
+
+fun box(): String {
+    var result = A(23).s
+    if (result != "OK") return "fail1: $result"
+
+    result = A(23L).s
+    if (result != "OK") return "fail2: $result"
+
+    result = B(23).s
+    if (result != "OK") return "fail3: $result"
+
+    if (log != "logged1;logged2;logged1;logged3;") return "fail log: $log"
+
+    return "OK"
+}
\ No newline at end of file
diff --git a/compiler/testData/codegen/light-analysis/classes/superConstructorCallWithComplexArg.txt b/compiler/testData/codegen/light-analysis/classes/superConstructorCallWithComplexArg.txt
new file mode 100644
index 00000000000..89c55c61ed4
--- /dev/null
+++ b/compiler/testData/codegen/light-analysis/classes/superConstructorCallWithComplexArg.txt
@@ -0,0 +1,18 @@
+public final class A {
+    public method <init>(p0: int): void
+}
+
+
+public class Base {
+    private final @org.jetbrains.annotations.NotNull field s: java.lang.String
+    public method <init>(@org.jetbrains.annotations.NotNull p0: java.lang.String): void
+    public final @org.jetbrains.annotations.NotNull method getS(): java.lang.String
+}
+
+
+public final class SuperConstructorCallWithComplexArgKt {
+    private static @org.jetbrains.annotations.NotNull field log: java.lang.String
+    public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
+    public final static @org.jetbrains.annotations.NotNull method getLog(): java.lang.String
+    public final static method setLog(@org.jetbrains.annotations.NotNull p0: java.lang.String): void
+}
diff --git a/compiler/testData/codegen/light-analysis/secondaryConstructors/delegateWithComplexExpression.txt b/compiler/testData/codegen/light-analysis/secondaryConstructors/delegateWithComplexExpression.txt
new file mode 100644
index 00000000000..dfb7fd935c6
--- /dev/null
+++ b/compiler/testData/codegen/light-analysis/secondaryConstructors/delegateWithComplexExpression.txt
@@ -0,0 +1,25 @@
+public final class A {
+    public method <init>(@org.jetbrains.annotations.NotNull p0: java.lang.String): void
+    public method <init>(p0: int): void
+    public method <init>(p0: long): void
+}
+
+
+public final class B {
+    public method <init>(p0: int): void
+}
+
+
+public class Base {
+    private final @org.jetbrains.annotations.NotNull field s: java.lang.String
+    public method <init>(@org.jetbrains.annotations.NotNull p0: java.lang.String): void
+    public final @org.jetbrains.annotations.NotNull method getS(): java.lang.String
+}
+
+
+public final class DelegateWithComplexExpressionKt {
+    private static @org.jetbrains.annotations.NotNull field log: java.lang.String
+    public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
+    public final static @org.jetbrains.annotations.NotNull method getLog(): java.lang.String
+    public final static method setLog(@org.jetbrains.annotations.NotNull p0: java.lang.String): void
+}
diff --git a/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java b/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
index 81c0cd28eef..19ab23da518 100644
--- a/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
@@ -3245,6 +3245,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             doTest(fileName);
         }
 
+        @TestMetadata("superConstructorCallWithComplexArg.kt")
+        public void testSuperConstructorCallWithComplexArg() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classes/superConstructorCallWithComplexArg.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("typedDelegation.kt")
         public void testTypedDelegation() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classes/typedDelegation.kt");
@@ -15464,6 +15470,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             doTest(fileName);
         }
 
+        @TestMetadata("delegateWithComplexExpression.kt")
+        public void testDelegateWithComplexExpression() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/secondaryConstructors/delegateWithComplexExpression.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("delegatedThisWithLambda.kt")
         public void testDelegatedThisWithLambda() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/secondaryConstructors/delegatedThisWithLambda.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index c12a51f6199..47b55ea75c2 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -3245,6 +3245,12 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             doTest(fileName);
         }
 
+        @TestMetadata("superConstructorCallWithComplexArg.kt")
+        public void testSuperConstructorCallWithComplexArg() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classes/superConstructorCallWithComplexArg.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("typedDelegation.kt")
         public void testTypedDelegation() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classes/typedDelegation.kt");
@@ -15464,6 +15470,12 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             doTest(fileName);
         }
 
+        @TestMetadata("delegateWithComplexExpression.kt")
+        public void testDelegateWithComplexExpression() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/secondaryConstructors/delegateWithComplexExpression.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("delegatedThisWithLambda.kt")
         public void testDelegatedThisWithLambda() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/secondaryConstructors/delegatedThisWithLambda.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeCodegenTestGenerated.java
index 296d1f2d7d0..9e3fdc79605 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeCodegenTestGenerated.java
@@ -3245,6 +3245,12 @@ public class LightAnalysisModeCodegenTestGenerated extends AbstractLightAnalysis
             doTest(fileName);
         }
 
+        @TestMetadata("superConstructorCallWithComplexArg.kt")
+        public void testSuperConstructorCallWithComplexArg() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classes/superConstructorCallWithComplexArg.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("typedDelegation.kt")
         public void testTypedDelegation() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classes/typedDelegation.kt");
@@ -15464,6 +15470,12 @@ public class LightAnalysisModeCodegenTestGenerated extends AbstractLightAnalysis
             doTest(fileName);
         }
 
+        @TestMetadata("delegateWithComplexExpression.kt")
+        public void testDelegateWithComplexExpression() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/secondaryConstructors/delegateWithComplexExpression.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("delegatedThisWithLambda.kt")
         public void testDelegatedThisWithLambda() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/secondaryConstructors/delegatedThisWithLambda.kt");
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
index 98d48f87f9d..eda49950260 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
@@ -3996,6 +3996,12 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             doTest(fileName);
         }
 
+        @TestMetadata("superConstructorCallWithComplexArg.kt")
+        public void testSuperConstructorCallWithComplexArg() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classes/superConstructorCallWithComplexArg.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("typedDelegation.kt")
         public void testTypedDelegation() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classes/typedDelegation.kt");
@@ -19750,6 +19756,12 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             doTest(fileName);
         }
 
+        @TestMetadata("delegateWithComplexExpression.kt")
+        public void testDelegateWithComplexExpression() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/secondaryConstructors/delegateWithComplexExpression.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("delegatedThisWithLambda.kt")
         public void testDelegatedThisWithLambda() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/secondaryConstructors/delegatedThisWithLambda.kt");
diff --git a/js/js.translator/src/org/jetbrains/kotlin/js/translate/declaration/ClassTranslator.kt b/js/js.translator/src/org/jetbrains/kotlin/js/translate/declaration/ClassTranslator.kt
index e11fe0bbb24..31b35073033 100644
--- a/js/js.translator/src/org/jetbrains/kotlin/js/translate/declaration/ClassTranslator.kt
+++ b/js/js.translator/src/org/jetbrains/kotlin/js/translate/declaration/ClassTranslator.kt
@@ -214,12 +214,13 @@ class ClassTranslator private constructor(
         // Translate constructor body
         val constructorInitializer = context.getFunctionObject(constructorDescriptor)
         constructorInitializer.name = context.getInnerNameForDescriptor(constructorDescriptor)
-        context.addTopLevelStatement(constructorInitializer.makeStmt())
+        context.addDeclarationStatement(constructorInitializer.makeStmt())
         FunctionTranslator.newInstance(constructor, context, constructorInitializer).translateAsMethodWithoutMetadata()
 
         // Translate super/this call
         val superCallGenerators = mutableListOf<(MutableList<JsStatement>) -> Unit>()
         val referenceToClass = context.getInnerReference(classDescriptor)
+        context = context.contextWithScope(constructorInitializer)
 
         superCallGenerators += { it += FunctionBodyTranslator.setDefaultValueForArguments(constructorDescriptor, context) }
 
@@ -250,8 +251,11 @@ class ClassTranslator private constructor(
         if (resolvedCall != null && !KotlinBuiltIns.isAny(delegationClassDescriptor!!)) {
             superCallGenerators += {
                 val delegationConstructor = resolvedCall.resultingDescriptor
-                it += CallTranslator.translate(context, resolvedCall)
+                val innerContext = context.innerBlock()
+                val statement = CallTranslator.translate(innerContext, resolvedCall)
                         .toInvocationWith(leadingArgs, delegationConstructor.valueParameters.size, thisNameRef).makeStmt()
+                it += innerContext.currentBlock.statements
+                it += statement
             }
         }