diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksInlineClassNonNull.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksInlineClassNonNull.kt
new file mode 100644
index 00000000000..5de9ddef6c6
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksInlineClassNonNull.kt
@@ -0,0 +1,50 @@
+// !LANGUAGE: +InlineClasses
+
+inline class Inner(val w: String)
+inline class A(val x: Inner)
+
+fun isNullVacuousLeft(s: A) = s == null
+fun isNullVacuousRight(s: A) = null == s
+fun isNullLeft(s: A?) = s == null
+fun isNullRight(s: A?) = null == s
+fun isEqualSame(s: A, t: A) = s == t
+fun isEqualAnyLeft(s: A, t: Any?) = s == t
+fun isEqualAnyRight(s: Any?, t: A) = s == t
+fun isEqualSameNullable(s: A?, t: A?) = s == t
+fun isEqualAnyNullableLeft(s: A?, t: Any?) = s == t
+fun isEqualAnyNullableRight(s: Any?, t: A?) = s == t
+
+fun box(): String {
+    if (isNullVacuousLeft(A(Inner("")))) return "Fail 1"
+    if (isNullVacuousRight(A(Inner("")))) return "Fail 2"
+    if (isNullLeft(A(Inner("")))) return "Fail 3"
+    if (isNullRight(A(Inner("")))) return "Fail 4"
+    if (!isNullLeft(null)) return "Fail 5"
+    if (!isNullRight(null)) return "Fail 6"
+    if (!isEqualSame(A(Inner("")), A(Inner("")))) return "Fail 7"
+    if (isEqualSame(A(Inner("")), A(Inner("a")))) return "Fail 8"
+    if (isEqualAnyLeft(A(Inner("")), Inner(""))) return "Fail 9"
+    if (isEqualAnyLeft(A(Inner("")), null)) return "Fail 10"
+    if (!isEqualAnyLeft(A(Inner("")), A(Inner("")))) return "Fail 11"
+    if (isEqualAnyRight(Inner(""), A(Inner("")))) return "Fail 12"
+    if (isEqualAnyRight(null, A(Inner("")))) return "Fail 13"
+    if (!isEqualAnyRight(A(Inner("")), A(Inner("")))) return "Fail 14"
+    if (!isEqualSameNullable(null, null)) return "Fail 15"
+    if (!isEqualSameNullable(A(Inner("")), A(Inner("")))) return "Fail 16"
+    if (isEqualSameNullable(null, A(Inner("")))) return "Fail 17"
+    if (isEqualSameNullable(A(Inner("")), null)) return "Fail 18"
+    if (isEqualSameNullable(A(Inner("")), A(Inner("a")))) return "Fail 19"
+    if (!isEqualAnyNullableLeft(null, null)) return "Fail 20"
+    if (!isEqualAnyNullableLeft(A(Inner("")), A(Inner("")))) return "Fail 21"
+    if (isEqualAnyNullableLeft(A(Inner("")), "")) return "Fail 22"
+    if (isEqualAnyNullableLeft(null, Inner(""))) return "Fail 23"
+    if (isEqualAnyNullableLeft(A(Inner("")), null)) return "Fail 24"
+    if (isEqualAnyNullableLeft(A(Inner("")), A(Inner("a")))) return "Fail 25"
+    if (!isEqualAnyNullableRight(null, null)) return "Fail 26"
+    if (!isEqualAnyNullableRight(A(Inner("a")), A(Inner("a")))) return "Fail 27"
+    if (isEqualAnyNullableRight(Inner(""), A(Inner("")))) return "Fail 28"
+    if (isEqualAnyNullableRight(Inner(""), null)) return "Fail 29"
+    if (isEqualAnyNullableRight(null, A(Inner("")))) return "Fail 30"
+    if (isEqualAnyNullableRight(A(Inner("a")), A(Inner("b")))) return "Fail 31"
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksMixedNullability.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksMixedNullability.kt
new file mode 100644
index 00000000000..a2acdf9dd14
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksMixedNullability.kt
@@ -0,0 +1,14 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val a: String)
+
+fun isEqualNA(x: A?, y: A) = x == y
+fun isEqualAN(x: A, y: A?) = x == y
+
+fun box(): String {
+    if (isEqualNA(null, A(""))) return "Fail 1"
+    if (isEqualAN(A(""), null)) return "Fail 2"
+    if (!isEqualNA(A(""), A(""))) return "Fail 3"
+    if (!isEqualAN(A(""), A(""))) return "Fail 4"
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedInlineClassNonNull.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedInlineClassNonNull.kt
new file mode 100644
index 00000000000..6fe87b662ed
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedInlineClassNonNull.kt
@@ -0,0 +1,50 @@
+// !LANGUAGE: +InlineClasses
+
+inline class Inner(val w: String)
+inline class A(val x: Inner)
+
+fun isNotNullVacuousLeft(s: A) = s != null
+fun isNotNullVacuousRight(s: A) = null != s
+fun isNotNullLeft(s: A?) = s != null
+fun isNotNullRight(s: A?) = null != s
+fun isNotEqualSame(s: A, t: A) = s != t
+fun isNotEqualAnyLeft(s: A, t: Any?) = s != t
+fun isNotEqualAnyRight(s: Any?, t: A) = s != t
+fun isNotEqualSameNullable(s: A?, t: A?) = s != t
+fun isNotEqualAnyNullableLeft(s: A?, t: Any?) = s != t
+fun isNotEqualAnyNullableRight(s: Any?, t: A?) = s != t
+
+fun box(): String {
+    if (!isNotNullVacuousLeft(A(Inner("")))) return "Fail 1"
+    if (!isNotNullVacuousRight(A(Inner("")))) return "Fail 2"
+    if (!isNotNullLeft(A(Inner("")))) return "Fail 3"
+    if (!isNotNullRight(A(Inner("")))) return "Fail 4"
+    if (isNotNullLeft(null)) return "Fail 5"
+    if (isNotNullRight(null)) return "Fail 6"
+    if (isNotEqualSame(A(Inner("")), A(Inner("")))) return "Fail 7"
+    if (!isNotEqualSame(A(Inner("")), A(Inner("a")))) return "Fail 8"
+    if (!isNotEqualAnyLeft(A(Inner("")), Inner(""))) return "Fail 9"
+    if (!isNotEqualAnyLeft(A(Inner("")), null)) return "Fail 10"
+    if (isNotEqualAnyLeft(A(Inner("")), A(Inner("")))) return "Fail 11"
+    if (!isNotEqualAnyRight(Inner(""), A(Inner("")))) return "Fail 12"
+    if (!isNotEqualAnyRight(null, A(Inner("")))) return "Fail 13"
+    if (isNotEqualAnyRight(A(Inner("")), A(Inner("")))) return "Fail 14"
+    if (isNotEqualSameNullable(null, null)) return "Fail 15"
+    if (isNotEqualSameNullable(A(Inner("")), A(Inner("")))) return "Fail 16"
+    if (!isNotEqualSameNullable(null, A(Inner("")))) return "Fail 17"
+    if (!isNotEqualSameNullable(A(Inner("")), null)) return "Fail 18"
+    if (!isNotEqualSameNullable(A(Inner("")), A(Inner("a")))) return "Fail 19"
+    if (isNotEqualAnyNullableLeft(null, null)) return "Fail 20"
+    if (isNotEqualAnyNullableLeft(A(Inner("")), A(Inner("")))) return "Fail 21"
+    if (!isNotEqualAnyNullableLeft(A(Inner("")), "")) return "Fail 22"
+    if (!isNotEqualAnyNullableLeft(null, Inner(""))) return "Fail 23"
+    if (!isNotEqualAnyNullableLeft(A(Inner("")), null)) return "Fail 24"
+    if (!isNotEqualAnyNullableLeft(A(Inner("")), A(Inner("a")))) return "Fail 25"
+    if (isNotEqualAnyNullableRight(null, null)) return "Fail 26"
+    if (isNotEqualAnyNullableRight(A(Inner("a")), A(Inner("a")))) return "Fail 27"
+    if (!isNotEqualAnyNullableRight(Inner(""), A(Inner("")))) return "Fail 28"
+    if (!isNotEqualAnyNullableRight(Inner(""), null)) return "Fail 29"
+    if (!isNotEqualAnyNullableRight(null, A(Inner("")))) return "Fail 30"
+    if (!isNotEqualAnyNullableRight(A(Inner("a")), A(Inner("b")))) return "Fail 31"
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNonNull.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNonNull.kt
new file mode 100644
index 00000000000..26b8d36055a
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNonNull.kt
@@ -0,0 +1,49 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: String)
+
+fun isNotNullVacuousLeft(s: A) = s != null
+fun isNotNullVacuousRight(s: A) = null != s
+fun isNotNullLeft(s: A?) = s != null
+fun isNotNullRight(s: A?) = null != s
+fun isNotEqualSame(s: A, t: A) = s != t
+fun isNotEqualAnyLeft(s: A, t: Any?) = s != t
+fun isNotEqualAnyRight(s: Any?, t: A) = s != t
+fun isNotEqualSameNullable(s: A?, t: A?) = s != t
+fun isNotEqualAnyNullableLeft(s: A?, t: Any?) = s != t
+fun isNotEqualAnyNullableRight(s: Any?, t: A?) = s != t
+
+fun box(): String {
+    if (!isNotNullVacuousLeft(A(""))) return "Fail 1"
+    if (!isNotNullVacuousRight(A(""))) return "Fail 2"
+    if (!isNotNullLeft(A(""))) return "Fail 3"
+    if (!isNotNullRight(A(""))) return "Fail 4"
+    if (isNotNullLeft(null)) return "Fail 5"
+    if (isNotNullRight(null)) return "Fail 6"
+    if (isNotEqualSame(A(""), A(""))) return "Fail 7"
+    if (!isNotEqualSame(A("a"), A("b"))) return "Fail 8"
+    if (!isNotEqualAnyLeft(A(""), "")) return "Fail 9"
+    if (!isNotEqualAnyLeft(A(""), null)) return "Fail 10"
+    if (isNotEqualAnyLeft(A(""), A(""))) return "Fail 11"
+    if (!isNotEqualAnyRight("", A(""))) return "Fail 12"
+    if (!isNotEqualAnyRight(null, A(""))) return "Fail 13"
+    if (isNotEqualAnyRight(A(""), A(""))) return "Fail 14"
+    if (isNotEqualSameNullable(null, null)) return "Fail 15"
+    if (isNotEqualSameNullable(A(""), A(""))) return "Fail 16"
+    if (!isNotEqualSameNullable(null, A(""))) return "Fail 17"
+    if (!isNotEqualSameNullable(A(""), null)) return "Fail 18"
+    if (!isNotEqualSameNullable(A(""), A("a"))) return "Fail 19"
+    if (isNotEqualAnyNullableLeft(null, null)) return "Fail 20"
+    if (isNotEqualAnyNullableLeft(A(""), A(""))) return "Fail 21"
+    if (!isNotEqualAnyNullableLeft(A(""), "")) return "Fail 22"
+    if (!isNotEqualAnyNullableLeft(null, "")) return "Fail 23"
+    if (!isNotEqualAnyNullableLeft(A(""), null)) return "Fail 24"
+    if (!isNotEqualAnyNullableLeft(A(""), A("a"))) return "Fail 25"
+    if (isNotEqualAnyNullableRight(null, null)) return "Fail 26"
+    if (isNotEqualAnyNullableRight(A(""), A(""))) return "Fail 27"
+    if (!isNotEqualAnyNullableRight("", A(""))) return "Fail 28"
+    if (!isNotEqualAnyNullableRight("", null)) return "Fail 29"
+    if (!isNotEqualAnyNullableRight(null, A(""))) return "Fail 30"
+    if (!isNotEqualAnyNullableRight(A(""), A("a"))) return "Fail 31"
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNullable.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNullable.kt
new file mode 100644
index 00000000000..7807e7ea3dc
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNullable.kt
@@ -0,0 +1,61 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: Any?)
+
+fun isNotNullVacuousLeft(s: A) = s != null
+fun isNotNullVacuousRight(s: A) = null != s
+fun isNotNullLeft(s: A?) = s != null
+fun isNotNullRight(s: A?) = null != s
+fun isNotEqualSame(s: A, t: A) = s != t
+fun isNotEqualAnyLeft(s: A, t: Any?) = s != t
+fun isNotEqualAnyRight(s: Any?, t: A) = s != t
+fun isNotEqualSameNullable(s: A?, t: A?) = s != t
+fun isNotEqualAnyNullableLeft(s: A?, t: Any?) = s != t
+fun isNotEqualAnyNullableRight(s: Any?, t: A?) = s != t
+
+fun box(): String {
+    if (!isNotNullVacuousLeft(A(0))) return "Fail 1"
+    if (!isNotNullVacuousRight(A(0))) return "Fail 2"
+    if (!isNotNullLeft(A(0))) return "Fail 3"
+    if (!isNotNullRight(A(0))) return "Fail 4"
+    if (isNotNullLeft(null)) return "Fail 5"
+    if (isNotNullRight(null)) return "Fail 6"
+    if (isNotEqualSame(A(0), A(0))) return "Fail 7"
+    if (!isNotEqualSame(A(0), A(1))) return "Fail 8"
+    if (!isNotEqualAnyLeft(A(0), 0)) return "Fail 9"
+    if (!isNotEqualAnyLeft(A(0), null)) return "Fail 10"
+    if (isNotEqualAnyLeft(A(0), A(0))) return "Fail 11"
+    if (!isNotEqualAnyRight(0, A(0))) return "Fail 12"
+    if (!isNotEqualAnyRight(null, A(0))) return "Fail 13"
+    if (isNotEqualAnyRight(A(0), A(0))) return "Fail 14"
+    if (isNotEqualSameNullable(null, null)) return "Fail 15"
+    if (isNotEqualSameNullable(A(0), A(0))) return "Fail 16"
+    if (!isNotEqualSameNullable(null, A(0))) return "Fail 17"
+    if (!isNotEqualSameNullable(A(0), null)) return "Fail 18"
+    if (!isNotEqualSameNullable(A(0), A(1))) return "Fail 19"
+    if (isNotEqualAnyNullableLeft(null, null)) return "Fail 20"
+    if (isNotEqualAnyNullableLeft(A(0), A(0))) return "Fail 21"
+    if (!isNotEqualAnyNullableLeft(A(0), 0)) return "Fail 22"
+    if (!isNotEqualAnyNullableLeft(null, 0)) return "Fail 23"
+    if (!isNotEqualAnyNullableLeft(A(0), null)) return "Fail 24"
+    if (!isNotEqualAnyNullableLeft(A(0), A(1))) return "Fail 25"
+    if (isNotEqualAnyNullableRight(null, null)) return "Fail 26"
+    if (isNotEqualAnyNullableRight(A(0), A(0))) return "Fail 27"
+    if (!isNotEqualAnyNullableRight(0, A(0))) return "Fail 28"
+    if (!isNotEqualAnyNullableRight(0, null)) return "Fail 29"
+    if (!isNotEqualAnyNullableRight(null, A(0))) return "Fail 30"
+    if (!isNotEqualAnyNullableRight(A(0), A(1))) return "Fail 31"
+
+    if (!isNotNullVacuousLeft(A(null))) return "Fail 32"
+    if (!isNotNullVacuousRight(A(null))) return "Fail 33"
+    if (!isNotNullLeft(A(null))) return "Fail 34"
+    if (!isNotNullRight(A(null))) return "Fail 35"
+    if (!isNotEqualAnyLeft(A(null), null)) return "Fail 36"
+    if (!isNotEqualAnyRight(null, A(null))) return "Fail 37"
+    if (!isNotEqualAnyNullableLeft(A(null), null)) return "Fail 38"
+    if (!isNotEqualAnyNullableRight(null, A(null))) return "Fail 39"
+    if (!isNotEqualSameNullable(A(null), null)) return "Fail 42"
+    if (!isNotEqualSameNullable(null, A(null))) return "Fail 43"
+
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedPrimitive.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedPrimitive.kt
new file mode 100644
index 00000000000..5d6fc2f92d6
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedPrimitive.kt
@@ -0,0 +1,49 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: Int)
+
+fun isNotNullVacuousLeft(s: A) = s != null
+fun isNotNullVacuousRight(s: A) = null != s
+fun isNotNullLeft(s: A?) = s != null
+fun isNotNullRight(s: A?) = null != s
+fun isNotEqualSame(s: A, t: A) = s != t
+fun isNotEqualAnyLeft(s: A, t: Any?) = s != t
+fun isNotEqualAnyRight(s: Any?, t: A) = s != t
+fun isNotEqualSameNullable(s: A?, t: A?) = s != t
+fun isNotEqualAnyNullableLeft(s: A?, t: Any?) = s != t
+fun isNotEqualAnyNullableRight(s: Any?, t: A?) = s != t
+
+fun box(): String {
+    if (!isNotNullVacuousLeft(A(0))) return "Fail 1"
+    if (!isNotNullVacuousRight(A(0))) return "Fail 2"
+    if (!isNotNullLeft(A(0))) return "Fail 3"
+    if (!isNotNullRight(A(0))) return "Fail 4"
+    if (isNotNullLeft(null)) return "Fail 5"
+    if (isNotNullRight(null)) return "Fail 6"
+    if (isNotEqualSame(A(0), A(0))) return "Fail 7"
+    if (!isNotEqualSame(A(0), A(1))) return "Fail 8"
+    if (!isNotEqualAnyLeft(A(0), 0)) return "Fail 9"
+    if (!isNotEqualAnyLeft(A(0), null)) return "Fail 10"
+    if (isNotEqualAnyLeft(A(0), A(0))) return "Fail 11"
+    if (!isNotEqualAnyRight(0, A(0))) return "Fail 12"
+    if (!isNotEqualAnyRight(null, A(0))) return "Fail 13"
+    if (isNotEqualAnyRight(A(0), A(0))) return "Fail 14"
+    if (isNotEqualSameNullable(null, null)) return "Fail 15"
+    if (isNotEqualSameNullable(A(0), A(0))) return "Fail 16"
+    if (!isNotEqualSameNullable(null, A(0))) return "Fail 17"
+    if (!isNotEqualSameNullable(A(0), null)) return "Fail 18"
+    if (!isNotEqualSameNullable(A(0), A(1))) return "Fail 19"
+    if (isNotEqualAnyNullableLeft(null, null)) return "Fail 20"
+    if (isNotEqualAnyNullableLeft(A(0), A(0))) return "Fail 21"
+    if (!isNotEqualAnyNullableLeft(A(0), 0)) return "Fail 22"
+    if (!isNotEqualAnyNullableLeft(null, 0)) return "Fail 23"
+    if (!isNotEqualAnyNullableLeft(A(0), null)) return "Fail 24"
+    if (!isNotEqualAnyNullableLeft(A(0), A(1))) return "Fail 25"
+    if (isNotEqualAnyNullableRight(null, null)) return "Fail 26"
+    if (isNotEqualAnyNullableRight(A(0), A(0))) return "Fail 27"
+    if (!isNotEqualAnyNullableRight(0, A(0))) return "Fail 28"
+    if (!isNotEqualAnyNullableRight(0, null)) return "Fail 29"
+    if (!isNotEqualAnyNullableRight(null, A(0))) return "Fail 30"
+    if (!isNotEqualAnyNullableRight(A(0), A(1))) return "Fail 31"
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksNonNull.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksNonNull.kt
new file mode 100644
index 00000000000..6c81d848515
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksNonNull.kt
@@ -0,0 +1,49 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: String)
+
+fun isNullVacuousLeft(s: A) = s == null
+fun isNullVacuousRight(s: A) = null == s
+fun isNullLeft(s: A?) = s == null
+fun isNullRight(s: A?) = null == s
+fun isEqualSame(s: A, t: A) = s == t
+fun isEqualAnyLeft(s: A, t: Any?) = s == t
+fun isEqualAnyRight(s: Any?, t: A) = s == t
+fun isEqualSameNullable(s: A?, t: A?) = s == t
+fun isEqualAnyNullableLeft(s: A?, t: Any?) = s == t
+fun isEqualAnyNullableRight(s: Any?, t: A?) = s == t
+
+fun box(): String {
+    if (isNullVacuousLeft(A(""))) return "Fail 1"
+    if (isNullVacuousRight(A(""))) return "Fail 2"
+    if (isNullLeft(A(""))) return "Fail 3"
+    if (isNullRight(A(""))) return "Fail 4"
+    if (!isNullLeft(null)) return "Fail 5"
+    if (!isNullRight(null)) return "Fail 6"
+    if (!isEqualSame(A(""), A(""))) return "Fail 7"
+    if (isEqualSame(A("a"), A("b"))) return "Fail 8"
+    if (isEqualAnyLeft(A(""), "")) return "Fail 9"
+    if (isEqualAnyLeft(A(""), null)) return "Fail 10"
+    if (!isEqualAnyLeft(A(""), A(""))) return "Fail 11"
+    if (isEqualAnyRight("", A(""))) return "Fail 12"
+    if (isEqualAnyRight(null, A(""))) return "Fail 13"
+    if (!isEqualAnyRight(A(""), A(""))) return "Fail 14"
+    if (!isEqualSameNullable(null, null)) return "Fail 15"
+    if (!isEqualSameNullable(A(""), A(""))) return "Fail 16"
+    if (isEqualSameNullable(null, A(""))) return "Fail 17"
+    if (isEqualSameNullable(A(""), null)) return "Fail 18"
+    if (isEqualSameNullable(A(""), A("a"))) return "Fail 19"
+    if (!isEqualAnyNullableLeft(null, null)) return "Fail 20"
+    if (!isEqualAnyNullableLeft(A(""), A(""))) return "Fail 21"
+    if (isEqualAnyNullableLeft(A(""), "")) return "Fail 22"
+    if (isEqualAnyNullableLeft(null, "")) return "Fail 23"
+    if (isEqualAnyNullableLeft(A(""), null)) return "Fail 24"
+    if (isEqualAnyNullableLeft(A(""), A("a"))) return "Fail 25"
+    if (!isEqualAnyNullableRight(null, null)) return "Fail 26"
+    if (!isEqualAnyNullableRight(A(""), A(""))) return "Fail 27"
+    if (isEqualAnyNullableRight("", A(""))) return "Fail 28"
+    if (isEqualAnyNullableRight("", null)) return "Fail 29"
+    if (isEqualAnyNullableRight(null, A(""))) return "Fail 30"
+    if (isEqualAnyNullableRight(A(""), A("a"))) return "Fail 31"
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksNullable.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksNullable.kt
new file mode 100644
index 00000000000..f4b10cf5d70
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksNullable.kt
@@ -0,0 +1,61 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: Any?)
+
+fun isNullVacuousLeft(s: A) = s == null
+fun isNullVacuousRight(s: A) = null == s
+fun isNullLeft(s: A?) = s == null
+fun isNullRight(s: A?) = null == s
+fun isEqualSame(s: A, t: A) = s == t
+fun isEqualAnyLeft(s: A, t: Any?) = s == t
+fun isEqualAnyRight(s: Any?, t: A) = s == t
+fun isEqualSameNullable(s: A?, t: A?) = s == t
+fun isEqualAnyNullableLeft(s: A?, t: Any?) = s == t
+fun isEqualAnyNullableRight(s: Any?, t: A?) = s == t
+
+fun box(): String {
+    if (isNullVacuousLeft(A(0))) return "Fail 1"
+    if (isNullVacuousRight(A(0))) return "Fail 2"
+    if (isNullLeft(A(0))) return "Fail 3"
+    if (isNullRight(A(0))) return "Fail 4"
+    if (!isNullLeft(null)) return "Fail 5"
+    if (!isNullRight(null)) return "Fail 6"
+    if (!isEqualSame(A(0), A(0))) return "Fail 7"
+    if (isEqualSame(A(0), A(1))) return "Fail 8"
+    if (isEqualAnyLeft(A(0), 0)) return "Fail 9"
+    if (isEqualAnyLeft(A(0), null)) return "Fail 10"
+    if (!isEqualAnyLeft(A(0), A(0))) return "Fail 11"
+    if (isEqualAnyRight(0, A(0))) return "Fail 12"
+    if (isEqualAnyRight(null, A(0))) return "Fail 13"
+    if (!isEqualAnyRight(A(0), A(0))) return "Fail 14"
+    if (!isEqualSameNullable(null, null)) return "Fail 15"
+    if (!isEqualSameNullable(A(0), A(0))) return "Fail 16"
+    if (isEqualSameNullable(null, A(0))) return "Fail 17"
+    if (isEqualSameNullable(A(0), null)) return "Fail 18"
+    if (isEqualSameNullable(A(0), A(1))) return "Fail 19"
+    if (!isEqualAnyNullableLeft(null, null)) return "Fail 20"
+    if (!isEqualAnyNullableLeft(A(0), A(0))) return "Fail 21"
+    if (isEqualAnyNullableLeft(A(0), 0)) return "Fail 22"
+    if (isEqualAnyNullableLeft(null, 0)) return "Fail 23"
+    if (isEqualAnyNullableLeft(A(0), null)) return "Fail 24"
+    if (isEqualAnyNullableLeft(A(0), A(1))) return "Fail 25"
+    if (!isEqualAnyNullableRight(null, null)) return "Fail 26"
+    if (!isEqualAnyNullableRight(A(0), A(0))) return "Fail 27"
+    if (isEqualAnyNullableRight(0, A(0))) return "Fail 28"
+    if (isEqualAnyNullableRight(0, null)) return "Fail 29"
+    if (isEqualAnyNullableRight(null, A(0))) return "Fail 30"
+    if (isEqualAnyNullableRight(A(0), A(1))) return "Fail 31"
+
+    if (isNullVacuousLeft(A(null))) return "Fail 32"
+    if (isNullVacuousRight(A(null))) return "Fail 33"
+    if (isNullLeft(A(null))) return "Fail 34"
+    if (isNullRight(A(null))) return "Fail 35"
+    if (isEqualAnyLeft(A(null), null)) return "Fail 36"
+    if (isEqualAnyRight(null, A(null))) return "Fail 37"
+    if (isEqualAnyNullableLeft(A(null), null)) return "Fail 38"
+    if (isEqualAnyNullableRight(null, A(null))) return "Fail 39"
+    if (isEqualSameNullable(A(null), null)) return "Fail 42"
+    if (isEqualSameNullable(null, A(null))) return "Fail 43"
+
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalityChecksPrimitive.kt b/compiler/testData/codegen/box/inlineClasses/equalityChecksPrimitive.kt
new file mode 100644
index 00000000000..6aacfb144be
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalityChecksPrimitive.kt
@@ -0,0 +1,49 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: Int)
+
+fun isNullVacuousLeft(s: A) = s == null
+fun isNullVacuousRight(s: A) = null == s
+fun isNullLeft(s: A?) = s == null
+fun isNullRight(s: A?) = null == s
+fun isEqualSame(s: A, t: A) = s == t
+fun isEqualAnyLeft(s: A, t: Any?) = s == t
+fun isEqualAnyRight(s: Any?, t: A) = s == t
+fun isEqualSameNullable(s: A?, t: A?) = s == t
+fun isEqualAnyNullableLeft(s: A?, t: Any?) = s == t
+fun isEqualAnyNullableRight(s: Any?, t: A?) = s == t
+
+fun box(): String {
+    if (isNullVacuousLeft(A(0))) return "Fail 1"
+    if (isNullVacuousRight(A(0))) return "Fail 2"
+    if (isNullLeft(A(0))) return "Fail 3"
+    if (isNullRight(A(0))) return "Fail 4"
+    if (!isNullLeft(null)) return "Fail 5"
+    if (!isNullRight(null)) return "Fail 6"
+    if (!isEqualSame(A(0), A(0))) return "Fail 7"
+    if (isEqualSame(A(0), A(1))) return "Fail 8"
+    if (isEqualAnyLeft(A(0), 0)) return "Fail 9"
+    if (isEqualAnyLeft(A(0), null)) return "Fail 10"
+    if (!isEqualAnyLeft(A(0), A(0))) return "Fail 11"
+    if (isEqualAnyRight(0, A(0))) return "Fail 12"
+    if (isEqualAnyRight(null, A(0))) return "Fail 13"
+    if (!isEqualAnyRight(A(0), A(0))) return "Fail 14"
+    if (!isEqualSameNullable(null, null)) return "Fail 15"
+    if (!isEqualSameNullable(A(0), A(0))) return "Fail 16"
+    if (isEqualSameNullable(null, A(0))) return "Fail 17"
+    if (isEqualSameNullable(A(0), null)) return "Fail 18"
+    if (isEqualSameNullable(A(0), A(1))) return "Fail 19"
+    if (!isEqualAnyNullableLeft(null, null)) return "Fail 20"
+    if (!isEqualAnyNullableLeft(A(0), A(0))) return "Fail 21"
+    if (isEqualAnyNullableLeft(A(0), 0)) return "Fail 22"
+    if (isEqualAnyNullableLeft(null, 0)) return "Fail 23"
+    if (isEqualAnyNullableLeft(A(0), null)) return "Fail 24"
+    if (isEqualAnyNullableLeft(A(0), A(1))) return "Fail 25"
+    if (!isEqualAnyNullableRight(null, null)) return "Fail 26"
+    if (!isEqualAnyNullableRight(A(0), A(0))) return "Fail 27"
+    if (isEqualAnyNullableRight(0, A(0))) return "Fail 28"
+    if (isEqualAnyNullableRight(0, null)) return "Fail 29"
+    if (isEqualAnyNullableRight(null, A(0))) return "Fail 30"
+    if (isEqualAnyNullableRight(A(0), A(1))) return "Fail 31"
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalsCallsLeftArgument.kt b/compiler/testData/codegen/box/inlineClasses/equalsCallsLeftArgument.kt
new file mode 100644
index 00000000000..fdac846434f
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalsCallsLeftArgument.kt
@@ -0,0 +1,14 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: String)
+
+class B {
+    override fun equals(other: Any?) = true
+}
+
+fun box(): String {
+    val x: Any? = B()
+    val y: A = A("")
+    if (x != y) return "Fail"
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderInlineClass.kt b/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderInlineClass.kt
new file mode 100644
index 00000000000..7fc6d414460
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderInlineClass.kt
@@ -0,0 +1,33 @@
+// !LANGUAGE: +InlineClasses
+
+inline class Inner(val x: Int)
+inline class A(val x: Inner)
+
+var i = 0
+
+fun set1(): A {
+    i = 1
+    return A(Inner(0))
+}
+
+fun test1(n: Int): A {
+    if (i != 1)
+        throw IllegalStateException("Fail $n")
+    i = 0
+    return A(Inner(0))
+}
+
+fun set1Boxed(): Any? = set1()
+fun test1Boxed(n: Int): Any? = test1(n)
+
+fun box(): String {
+    try {
+        set1() == test1(1)
+        set1Boxed() == test1(2)
+        set1() == test1Boxed(3)
+        set1Boxed() == test1Boxed(4)
+    } catch (e: IllegalStateException) {
+        return e.message ?: "Fail no message"
+    }
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNonNull.kt b/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNonNull.kt
new file mode 100644
index 00000000000..1f7ff01c87c
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNonNull.kt
@@ -0,0 +1,32 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: String = "")
+
+var i = 0
+
+fun set1(): A {
+    i = 1
+    return A()
+}
+
+fun test1(n: Int): A {
+    if (i != 1)
+        throw IllegalStateException("Fail $n")
+    i = 0
+    return A()
+}
+
+fun set1Boxed(): Any? = set1()
+fun test1Boxed(n: Int): Any? = test1(n)
+
+fun box(): String {
+    try {
+        set1() == test1(1)
+        set1Boxed() == test1(2)
+        set1() == test1Boxed(3)
+        set1Boxed() == test1Boxed(4)
+    } catch (e: IllegalStateException) {
+        return e.message ?: "Fail no message"
+    }
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNullable.kt b/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNullable.kt
new file mode 100644
index 00000000000..60f0ea4e27b
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNullable.kt
@@ -0,0 +1,32 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: Any? = null)
+
+var i = 0
+
+fun set1(): A {
+    i = 1
+    return A()
+}
+
+fun test1(n: Int): A {
+    if (i != 1)
+        throw IllegalStateException("Fail $n")
+    i = 0
+    return A()
+}
+
+fun set1Boxed(): Any? = set1()
+fun test1Boxed(n: Int): Any? = test1(n)
+
+fun box(): String {
+    try {
+        set1() == test1(1)
+        set1Boxed() == test1(2)
+        set1() == test1Boxed(3)
+        set1Boxed() == test1Boxed(4)
+    } catch (e: IllegalStateException) {
+        return e.message ?: "Fail no message"
+    }
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderPrimitive.kt b/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderPrimitive.kt
new file mode 100644
index 00000000000..745e3497825
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderPrimitive.kt
@@ -0,0 +1,32 @@
+// !LANGUAGE: +InlineClasses
+
+inline class A(val x: Int = 0)
+
+var i = 0
+
+fun set1(): A {
+    i = 1
+    return A()
+}
+
+fun test1(n: Int): A {
+    if (i != 1)
+        throw IllegalStateException("Fail $n")
+    i = 0
+    return A()
+}
+
+fun set1Boxed(): Any? = set1()
+fun test1Boxed(n: Int): Any? = test1(n)
+
+fun box(): String {
+    try {
+        set1() == test1(1)
+        set1Boxed() == test1(2)
+        set1() == test1Boxed(3)
+        set1Boxed() == test1Boxed(4)
+    } catch (e: IllegalStateException) {
+        return e.message ?: "Fail no message"
+    }
+    return "OK"
+}
diff --git a/compiler/testData/codegen/bytecodeText/inlineClasses/equalsDoesNotBox.kt b/compiler/testData/codegen/bytecodeText/inlineClasses/equalsDoesNotBox.kt
new file mode 100644
index 00000000000..d24acf0f84a
--- /dev/null
+++ b/compiler/testData/codegen/bytecodeText/inlineClasses/equalsDoesNotBox.kt
@@ -0,0 +1,84 @@
+// FILE: inlineClasses.kt
+inline class A(val x: Int)
+inline class B(val x: String)
+inline class C(val x: Any?)
+
+// FILE: a.kt
+
+// False
+fun isNullVacuousLeftA(s: A) = s == null
+fun isNullVacuousRightA(s: A) = null == s
+// IFNONNULL
+fun isNullLeftA(s: A?) = s == null
+fun isNullRightA(s: A?) = null == s
+// equals-impl0
+fun isEqualSameA(s: A, t: A) = s == t
+// equals-impl
+fun isEqualAnyLeftA(s: A, t: Any?) = s == t
+// boxes
+// fun isEqualAnyRightA(s: Any?, t: A) = s == t
+// Intrinsics.areEqual
+fun isEqualSameNullableA(s: A?, t: A?) = s == t
+fun isEqualAnyNullableLeftA(s: A?, t: Any?) = s == t
+fun isEqualAnyNullableRightA(s: Any?, t: A?) = s == t
+
+// FILE: b.kt
+
+// False
+fun isNullVacuousLeftB(s: B) = s == null
+fun isNullVacuousRightB(s: B) = null == s
+// IFNONNULL
+fun isNullLeftB(s: B?) = s == null
+fun isNullRightB(s: B?) = null == s
+// equals-impl0
+fun isEqualSameB(s: B, t: B) = s == t
+// equals-impl
+fun isEqualAnyLeftB(s: B, t: Any?) = s == t
+// boxes
+// fun isEqualAnyRightB(s: Any?, t: B) = s == t
+// equals-impl0
+fun isEqualSameNullableB(s: B?, t: B?) = s == t
+// equals-impl
+fun isEqualAnyNullableLeftB(s: B?, t: Any?) = s == t
+// boxes
+// fun isEqualAnyNullableRightB(s: Any?, t: B?) = s == t
+
+// FILE: c.kt
+
+// False
+fun isNullVacuousLeftC(s: C) = s == null
+fun isNullVacuousRightC(s: C) = null == s
+// IFNONULL
+fun isNullLeftC(s: C?) = s == null
+fun isNullRightC(s: C?) = null == s
+// equals-impl0
+fun isEqualSameC(s: C, t: C) = s == t
+// equals-impl
+fun isEqualAnyLeftC(s: C, t: Any?) = s == t
+// boxes
+// fun isEqualAnyRightC(s: Any?, t: C) = s == t
+// Intrinsics.areEqual
+fun isEqualSameNullableC(s: C?, t: C?) = s == t
+fun isEqualAnyNullableLeftC(s: C?, t: Any?) = s == t
+fun isEqualAnyNullableRightC(s: Any?, t: C?) = s == t
+
+// @AKt.class:
+// 0 INVOKESTATIC A.box-impl
+// 0 INVOKEVIRTUAL A.unbox-impl
+// 1 INVOKESTATIC A.equals-impl \(
+// 1 INVOKESTATIC A.equals-impl0
+// 3 INVOKESTATIC kotlin/jvm/internal/Intrinsics.areEqual
+
+// @BKt.class:
+// 0 INVOKESTATIC B.box-impl
+// 0 INVOKEVIRTUAL B.unbox-impl
+// 2 INVOKESTATIC B.equals-impl \(
+// 2 INVOKESTATIC B.equals-impl0
+// 0 INVOKESTATIC kotlin/jvm/internal/Intrinsics.areEqual
+
+// @CKt.class:
+// 0 INVOKESTATIC C.box-impl
+// 0 INVOKEVIRTUAL C.unbox-impl
+// 1 INVOKESTATIC C.equals-impl \(
+// 1 INVOKESTATIC C.equals-impl0
+// 3 INVOKESTATIC kotlin/jvm/internal/Intrinsics.areEqual
\ No newline at end of file
diff --git a/compiler/testData/codegen/bytecodeText/inlineClasses/resultApiDoesntUseBox.kt b/compiler/testData/codegen/bytecodeText/inlineClasses/resultApiDoesntUseBox.kt
index 75b1967c77d..d8065034797 100644
--- a/compiler/testData/codegen/bytecodeText/inlineClasses/resultApiDoesntUseBox.kt
+++ b/compiler/testData/codegen/bytecodeText/inlineClasses/resultApiDoesntUseBox.kt
@@ -1,3 +1,4 @@
+// IGNORE_BACKEND: JVM
 // IGNORE_BACKEND: JVM_IR
 // WITH_COROUTINES
 // FILE: test.kt
@@ -14,25 +15,24 @@ fun test() {
     val other = Result.success("nope")
     if (result == other) println("==")
     if (result != other) println("!=")
-    if (result.equals(other)) println("equals")
-    if (!result.equals(other)) println("!equals")
+    if (result.equals(other)) println("equals") // Boxes (JVM, JVM_IR)
+    if (!result.equals(other)) println("!equals") // Boxes (JVM, JVM_IR)
 
     println(result.hashCode())
     println(result.toString())
-    println("$result")
+    println("$result") // Boxes (JVM_IR)
 
     val ans1 = runCatching { 42 }
-    println(ans1)
+    println(ans1) // Boxes (JVM, JVM_IR)
 
     val ans2 = 42.runCatching { this }
-    println(ans2)
+    println(ans2) // Boxes (JVM, JVM_IR)
 
     println(result.getOrElse { "oops" })
     println(result.getOrDefault("oops"))
 }
 
 // @TestKt.class:
-// 0 INVOKESTATIC Result.box-impl
-// 0 INVOKESTATIC Result.unbox-impl
-// 0 Result\$Failure
-// 46 Result
\ No newline at end of file
+// 0 INVOKESTATIC kotlin/Result.box-impl
+// 0 INVOKEVIRTUAL kotlin/Result.unbox-impl
+// 0 Result\$Failure
\ No newline at end of file
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index a9e920e2c15..fe776de50c8 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -12380,11 +12380,81 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/inlineClasses/emptyConstructorForInlineClass.kt");
         }
 
+        @TestMetadata("equalityChecksInlineClassNonNull.kt")
+        public void testEqualityChecksInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksMixedNullability.kt")
+        public void testEqualityChecksMixedNullability() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksMixedNullability.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedInlineClassNonNull.kt")
+        public void testEqualityChecksNegatedInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNonNull.kt")
+        public void testEqualityChecksNegatedNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNullable.kt")
+        public void testEqualityChecksNegatedNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedPrimitive.kt")
+        public void testEqualityChecksNegatedPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedPrimitive.kt");
+        }
+
+        @TestMetadata("equalityChecksNonNull.kt")
+        public void testEqualityChecksNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNullable.kt")
+        public void testEqualityChecksNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksPrimitive.kt")
+        public void testEqualityChecksPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksPrimitive.kt");
+        }
+
         @TestMetadata("equalityForBoxesOfNullableValuesOfInlineClass.kt")
         public void testEqualityForBoxesOfNullableValuesOfInlineClass() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsCallsLeftArgument.kt")
+        public void testEqualsCallsLeftArgument() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsCallsLeftArgument.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderInlineClass.kt")
+        public void testEqualsEvaluationOrderInlineClass() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderInlineClass.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNonNull.kt")
+        public void testEqualsEvaluationOrderNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNonNull.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNullable.kt")
+        public void testEqualsEvaluationOrderNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNullable.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderPrimitive.kt")
+        public void testEqualsEvaluationOrderPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderPrimitive.kt");
+        }
+
         @TestMetadata("equalsOperatorWithGenericCall.kt")
         public void testEqualsOperatorWithGenericCall() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java
index 38b8c4ab57b..aedff5504a7 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java
@@ -2483,6 +2483,11 @@ public class BytecodeTextTestGenerated extends AbstractBytecodeTextTest {
             runTest("compiler/testData/codegen/bytecodeText/inlineClasses/defaultParametersDontBox.kt");
         }
 
+        @TestMetadata("equalsDoesNotBox.kt")
+        public void testEqualsDoesNotBox() throws Exception {
+            runTest("compiler/testData/codegen/bytecodeText/inlineClasses/equalsDoesNotBox.kt");
+        }
+
         @TestMetadata("equalsIsCalledByInlineClass.kt")
         public void testEqualsIsCalledByInlineClass() throws Exception {
             runTest("compiler/testData/codegen/bytecodeText/inlineClasses/equalsIsCalledByInlineClass.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index fefc7c72395..f04f036f008 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -12395,11 +12395,81 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/inlineClasses/emptyConstructorForInlineClass.kt");
         }
 
+        @TestMetadata("equalityChecksInlineClassNonNull.kt")
+        public void testEqualityChecksInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksMixedNullability.kt")
+        public void testEqualityChecksMixedNullability() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksMixedNullability.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedInlineClassNonNull.kt")
+        public void testEqualityChecksNegatedInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNonNull.kt")
+        public void testEqualityChecksNegatedNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNullable.kt")
+        public void testEqualityChecksNegatedNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedPrimitive.kt")
+        public void testEqualityChecksNegatedPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedPrimitive.kt");
+        }
+
+        @TestMetadata("equalityChecksNonNull.kt")
+        public void testEqualityChecksNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNullable.kt")
+        public void testEqualityChecksNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksPrimitive.kt")
+        public void testEqualityChecksPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksPrimitive.kt");
+        }
+
         @TestMetadata("equalityForBoxesOfNullableValuesOfInlineClass.kt")
         public void testEqualityForBoxesOfNullableValuesOfInlineClass() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsCallsLeftArgument.kt")
+        public void testEqualsCallsLeftArgument() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsCallsLeftArgument.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderInlineClass.kt")
+        public void testEqualsEvaluationOrderInlineClass() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderInlineClass.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNonNull.kt")
+        public void testEqualsEvaluationOrderNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNonNull.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNullable.kt")
+        public void testEqualsEvaluationOrderNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNullable.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderPrimitive.kt")
+        public void testEqualsEvaluationOrderPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderPrimitive.kt");
+        }
+
         @TestMetadata("equalsOperatorWithGenericCall.kt")
         public void testEqualsOperatorWithGenericCall() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
index aed78206b06..40e625794c9 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
@@ -11265,11 +11265,81 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/inlineClasses/emptyConstructorForInlineClass.kt");
         }
 
+        @TestMetadata("equalityChecksInlineClassNonNull.kt")
+        public void testEqualityChecksInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksMixedNullability.kt")
+        public void testEqualityChecksMixedNullability() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksMixedNullability.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedInlineClassNonNull.kt")
+        public void testEqualityChecksNegatedInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNonNull.kt")
+        public void testEqualityChecksNegatedNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNullable.kt")
+        public void testEqualityChecksNegatedNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedPrimitive.kt")
+        public void testEqualityChecksNegatedPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedPrimitive.kt");
+        }
+
+        @TestMetadata("equalityChecksNonNull.kt")
+        public void testEqualityChecksNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNullable.kt")
+        public void testEqualityChecksNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksPrimitive.kt")
+        public void testEqualityChecksPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksPrimitive.kt");
+        }
+
         @TestMetadata("equalityForBoxesOfNullableValuesOfInlineClass.kt")
         public void testEqualityForBoxesOfNullableValuesOfInlineClass() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsCallsLeftArgument.kt")
+        public void testEqualsCallsLeftArgument() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsCallsLeftArgument.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderInlineClass.kt")
+        public void testEqualsEvaluationOrderInlineClass() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderInlineClass.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNonNull.kt")
+        public void testEqualsEvaluationOrderNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNonNull.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNullable.kt")
+        public void testEqualsEvaluationOrderNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNullable.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderPrimitive.kt")
+        public void testEqualsEvaluationOrderPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderPrimitive.kt");
+        }
+
         @TestMetadata("equalsOperatorWithGenericCall.kt")
         public void testEqualsOperatorWithGenericCall() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBytecodeTextTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBytecodeTextTestGenerated.java
index 1f78337ed46..ff6fae38a70 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBytecodeTextTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBytecodeTextTestGenerated.java
@@ -2453,6 +2453,11 @@ public class IrBytecodeTextTestGenerated extends AbstractIrBytecodeTextTest {
             runTest("compiler/testData/codegen/bytecodeText/inlineClasses/defaultParametersDontBox.kt");
         }
 
+        @TestMetadata("equalsDoesNotBox.kt")
+        public void testEqualsDoesNotBox() throws Exception {
+            runTest("compiler/testData/codegen/bytecodeText/inlineClasses/equalsDoesNotBox.kt");
+        }
+
         @TestMetadata("equalsIsCalledByInlineClass.kt")
         public void testEqualsIsCalledByInlineClass() throws Exception {
             runTest("compiler/testData/codegen/bytecodeText/inlineClasses/equalsIsCalledByInlineClass.kt");
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
index 5c13f571438..31239507cf4 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
@@ -9720,11 +9720,81 @@ public class IrJsCodegenBoxTestGenerated extends AbstractIrJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/inlineClasses/emptyConstructorForInlineClass.kt");
         }
 
+        @TestMetadata("equalityChecksInlineClassNonNull.kt")
+        public void testEqualityChecksInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksMixedNullability.kt")
+        public void testEqualityChecksMixedNullability() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksMixedNullability.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedInlineClassNonNull.kt")
+        public void testEqualityChecksNegatedInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNonNull.kt")
+        public void testEqualityChecksNegatedNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNullable.kt")
+        public void testEqualityChecksNegatedNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedPrimitive.kt")
+        public void testEqualityChecksNegatedPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedPrimitive.kt");
+        }
+
+        @TestMetadata("equalityChecksNonNull.kt")
+        public void testEqualityChecksNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNullable.kt")
+        public void testEqualityChecksNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksPrimitive.kt")
+        public void testEqualityChecksPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksPrimitive.kt");
+        }
+
         @TestMetadata("equalityForBoxesOfNullableValuesOfInlineClass.kt")
         public void testEqualityForBoxesOfNullableValuesOfInlineClass() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsCallsLeftArgument.kt")
+        public void testEqualsCallsLeftArgument() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsCallsLeftArgument.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderInlineClass.kt")
+        public void testEqualsEvaluationOrderInlineClass() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderInlineClass.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNonNull.kt")
+        public void testEqualsEvaluationOrderNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNonNull.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNullable.kt")
+        public void testEqualsEvaluationOrderNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNullable.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderPrimitive.kt")
+        public void testEqualsEvaluationOrderPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderPrimitive.kt");
+        }
+
         @TestMetadata("equalsOperatorWithGenericCall.kt")
         public void testEqualsOperatorWithGenericCall() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.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 4628998f68a..885f209f530 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
@@ -10875,11 +10875,81 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/inlineClasses/emptyConstructorForInlineClass.kt");
         }
 
+        @TestMetadata("equalityChecksInlineClassNonNull.kt")
+        public void testEqualityChecksInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksMixedNullability.kt")
+        public void testEqualityChecksMixedNullability() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksMixedNullability.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedInlineClassNonNull.kt")
+        public void testEqualityChecksNegatedInlineClassNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedInlineClassNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNonNull.kt")
+        public void testEqualityChecksNegatedNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedNullable.kt")
+        public void testEqualityChecksNegatedNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksNegatedPrimitive.kt")
+        public void testEqualityChecksNegatedPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNegatedPrimitive.kt");
+        }
+
+        @TestMetadata("equalityChecksNonNull.kt")
+        public void testEqualityChecksNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNonNull.kt");
+        }
+
+        @TestMetadata("equalityChecksNullable.kt")
+        public void testEqualityChecksNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksNullable.kt");
+        }
+
+        @TestMetadata("equalityChecksPrimitive.kt")
+        public void testEqualityChecksPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalityChecksPrimitive.kt");
+        }
+
         @TestMetadata("equalityForBoxesOfNullableValuesOfInlineClass.kt")
         public void testEqualityForBoxesOfNullableValuesOfInlineClass() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsCallsLeftArgument.kt")
+        public void testEqualsCallsLeftArgument() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsCallsLeftArgument.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderInlineClass.kt")
+        public void testEqualsEvaluationOrderInlineClass() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderInlineClass.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNonNull.kt")
+        public void testEqualsEvaluationOrderNonNull() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNonNull.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderNullable.kt")
+        public void testEqualsEvaluationOrderNullable() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderNullable.kt");
+        }
+
+        @TestMetadata("equalsEvaluationOrderPrimitive.kt")
+        public void testEqualsEvaluationOrderPrimitive() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsEvaluationOrderPrimitive.kt");
+        }
+
         @TestMetadata("equalsOperatorWithGenericCall.kt")
         public void testEqualsOperatorWithGenericCall() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");