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|
// RUN: %target-swift-frontend -disable-type-layout -prespecialize-generic-metadata %s -target %module-target-future -gnone -emit-ir -enable-objc-interop | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%target-ptrsize --check-prefix=CHECK-objc --check-prefix=CHECK-objc-simulator-%target-is-simulator --check-prefix=CHECK-objc-%target-ptrsize --check-prefix=CHECK-%target-os --check-prefix=CHECK-objc-%target-os
// RUN: %target-swift-frontend -disable-type-layout -prespecialize-generic-metadata %s -target %module-target-future -gnone -emit-ir -disable-objc-interop | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%target-ptrsize --check-prefix=CHECK-native --check-prefix=CHECK-native-%target-ptrsize --check-prefix=CHECK-%target-os --check-prefix=CHECK-native-%target-os
// REQUIRES: CPU=x86_64
// REQUIRES: VENDOR=apple || OS=linux-gnu
// UNSUPPORTED: CPU=i386 && OS=ios
// UNSUPPORTED: CPU=armv7 && OS=ios
// UNSUPPORTED: CPU=armv7s && OS=ios
import Builtin
enum NoPayload {
case a
case b
case c
}
enum SingletonPayload {
case S(Builtin.Int64, Builtin.Int64)
}
enum SinglePayloadTrivial {
case payload(Builtin.Int64)
case a
case b
case c
}
enum SinglePayloadNontrivial {
case payload(Builtin.NativeObject)
case a
case b
case c
}
sil @single_payload_nontrivial_user : $@convention(thin) (@owned SinglePayloadNontrivial) -> ()
enum MultiPayloadTrivial {
case payload1(Builtin.Int64)
case payload2(Builtin.Int32, Builtin.Int32)
case a
case b
case c
}
enum MultiPayloadNoEmptyCases {
case payload1(Builtin.Int64)
case payload2(Builtin.Int32, Builtin.Int32)
}
enum MultiPayloadEmptyPayload {
case payload1()
case payload2()
case a
case b
case c
}
// No spare bits
enum MultiPayloadNontrivial {
case payload1(Builtin.NativeObject)
case payload2(Builtin.Int64)
case payload3(Builtin.Int64, Builtin.NativeObject)
case payload4(Builtin.Int64, Builtin.Int64)
case a
case b
case c
}
enum MultiPayloadGeneric<T> {
case payload1(T)
case payload2(T)
case a
case b
case c
}
// Most significant bits of second 64-bit word of payload
// are spare bits
enum MultiPayloadNontrivialSpareBits {
case payload1(Builtin.NativeObject)
case payload2(Builtin.Int64)
case payload3(Builtin.Int64, Builtin.NativeObject)
case a
case b
case c
}
// We only have 1 spare bit but 3 payload cases
enum MultiPayloadSpareBitsAndExtraBits {
case payload1(Builtin.Int63)
case payload2(Builtin.NativeObject)
case payload3(Builtin.NativeObject)
}
enum GenericFixedLayout<T> {
case foo(Builtin.Int64)
case bar(Builtin.NativeObject)
}
// CHECK-LABEL: @"$s27enum_value_semantics_future20SinglePayloadTrivialOWV" = internal constant %swift.enum_vwtable {
// CHECK: ptr @__swift_memcpy9_8,
// CHECK: ptr @__swift_noop_void_return,
// CHECK: ptr @__swift_memcpy9_8,
// CHECK: ptr @__swift_memcpy9_8,
// CHECK: ptr @__swift_memcpy9_8,
// CHECK: ptr @__swift_memcpy9_8,
// CHECK: ptr @"$s27enum_value_semantics_future20SinglePayloadTrivialOwet",
// CHECK: ptr @"$s27enum_value_semantics_future20SinglePayloadTrivialOwst",
// CHECK: i64 9,
// CHECK: i64 16,
// CHECK: i32 2097159,
// CHECK: i32 0,
// CHECK: ptr @"$s27enum_value_semantics_future20SinglePayloadTrivialOwug",
// CHECK: ptr @"$s27enum_value_semantics_future20SinglePayloadTrivialOwup",
// CHECK: ptr @"$s27enum_value_semantics_future20SinglePayloadTrivialOwui"
// CHECK: }
// CHECK-LABEL: @"$s27enum_value_semantics_future20SinglePayloadTrivialOMf" =
// CHECK-SAME: internal constant <{ {{.*}} }> <{
// CHECK-SAME: ptr @"$s27enum_value_semantics_future20SinglePayloadTrivialOWV",
// CHECK-SAME: i64 513,
// CHECK-SAME: ptr @"$s27enum_value_semantics_future20SinglePayloadTrivialOMn"
// CHECK-SAME: }>
// CHECK-LABEL: @"$s27enum_value_semantics_future23SinglePayloadNontrivialOWV" = internal constant %swift.enum_vwtable {
// CHECK: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwCP",
// CHECK: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwxx",
// CHECK: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwcp",
// CHECK: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwca",
// CHECK: ptr @__swift_memcpy8_8,
// CHECK: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwta",
// CHECK: i64 8,
// CHECK: i64 8,
// -- 0x210007
// CHECK: i32 2162695,
// -- On Darwin, the first 4 GiB are unmapped: 0x7ffffffc
// -- Otherwise, one can only assume the first page (4 KiB) is unmapped: 0xffd
// CHECK-ios: i32 2147483644
// CHECK-macosx: i32 2147483644
// CHECK-watchos: i32 2147483644
// CHECK-darwin: i32 2147483644
// CHECK-objc-linux-gnu: i32 2045
// CHECK-native-linux-gnu: i32 4093
// CHECK-objc-windows: i32 2045
// CHECK-native-windows: i32 4093
// CHECK: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwug",
// CHECK: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwup"
// CHECK: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwui"
// CHECK: ]
// CHECK-LABEL: @"$s27enum_value_semantics_future23SinglePayloadNontrivialOMf" =
// CHECK-SAME: internal constant <{ {{.*}} }> <{
// CHECK-SAME: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOWV",
// CHECK-SAME: i64 513,
// CHECK-SAME: ptr @"$s27enum_value_semantics_future23SinglePayloadNontrivialOMn"
// CHECK-SAME: }>
// CHECK: @"$s27enum_value_semantics_future18GenericFixedLayoutOWV" = internal constant %swift.enum_vwtable
// CHECK: [[EXTRA_DATA_PATTERN:@[0-9]+]] = internal constant <{ i64 }> zeroinitializer
// CHECK-LABEL: @"$s27enum_value_semantics_future18GenericFixedLayoutOMn" = hidden constant
// CHECK-SAME: ptr @"$s27enum_value_semantics_future18GenericFixedLayoutOMI"
// CHECK-SAME: @"$s27enum_value_semantics_future18GenericFixedLayoutOMP"
// CHECK-LABEL: @"$s27enum_value_semantics_future18GenericFixedLayoutOMP" = internal constant <{ {{.*}} }> <{
// Instantiation function.
// CHECK-SAME: i32 trunc (i64 sub (i64 ptrtoint (ptr @"$s27enum_value_semantics_future18GenericFixedLayoutOMi" to i64), i64 ptrtoint (ptr @"$s27enum_value_semantics_future18GenericFixedLayoutOMP" to i64)) to i32),
// Completion function.
// CHECK-SAME: i32 0,
// Pattern flags. 0x4020_0003 == (MetadataKind::Enum << 21 | HasTrailingFlags | HasExtraDataPattern).
// CHECK-SAME: i32 1075838979,
// Value witness table.
// CHECK-SAME: i32 trunc (i64 sub (i64 ptrtoint (ptr @"$s27enum_value_semantics_future18GenericFixedLayoutOWV" to i64), i64 ptrtoint (ptr getelementptr inbounds (<{ i32, i32, i32, i32, i32, i16, i16 }>, ptr @"$s27enum_value_semantics_future18GenericFixedLayoutOMP", i32 0, i32 3) to i64)) to i32)
// Extra data pattern.
// CHECK-SAME: i32 trunc (i64 sub (i64 ptrtoint (ptr [[EXTRA_DATA_PATTERN]] to i64), i64 ptrtoint (ptr getelementptr inbounds (<{ i32, i32, i32, i32, i32, i16, i16 }>, ptr @"$s27enum_value_semantics_future18GenericFixedLayoutOMP", i32 0, i32 4) to i64)) to i32)
// CHECK-SAME: }>
sil @single_payload_nontrivial_copy_destroy : $(@owned SinglePayloadNontrivial) -> () {
bb0(%0 : $SinglePayloadNontrivial):
retain_value %0 : $SinglePayloadNontrivial
%1 = function_ref @single_payload_nontrivial_user : $@convention(thin) (@owned SinglePayloadNontrivial) -> ()
apply %1(%0) : $@convention(thin) (@owned SinglePayloadNontrivial) -> ()
release_value %0 : $SinglePayloadNontrivial
%v = tuple ()
return %v : $()
}
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @single_payload_nontrivial_copy_destroy(i64 %0)
// CHECK: call void @"$s27enum_value_semantics_future23SinglePayloadNontrivialOWOy"
// CHECK-NEXT: call swiftcc void @single_payload_nontrivial_user
// CHECK-NEXT: call void @"$s27enum_value_semantics_future23SinglePayloadNontrivialOWOe"
// CHECK-NEXT: ret void
//
// No payload enums
//
// -- NoPayload getEnumTag
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future9NoPayloadOwug"
// CHECK: [[TAG_ADDR:%.*]] = getelementptr inbounds %T27enum_value_semantics_future9NoPayloadO, ptr %value, i32 0, i32 0
// CHECK-NEXT: [[TAG:%.*]] = load i8, ptr [[TAG_ADDR]], align 1
// CHECK-NEXT: [[RESULT:%.*]] = zext i8 {{.*}} to i32
// CHECK-NEXT: ret i32 [[RESULT]]
// -- NoPayload destructiveProjectEnumData
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future9NoPayloadOwup"
// CHECK: ret void
// -- NoPayload destructiveInjectEnumTag
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future9NoPayloadOwui"
// CHECK: [[TAG:%.*]] = trunc i32 %tag to i8
// CHECK-NEXT: [[TAG_ADDR:%.*]] = getelementptr inbounds %T27enum_value_semantics_future9NoPayloadO, ptr %value, i32 0, i32 0
// CHECK-NEXT: store i8 [[TAG]], ptr [[TAG_ADDR]], align 1
// CHECK-NEXT: ret void
//
// Singleton payload enums
//
// -- SingletonPayload getEnumTag
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future16SingletonPayloadOwug"
// CHECK: ret i32 0
// -- SingletonPayload destructiveProjectEnumData
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future16SingletonPayloadOwup"
// CHECK: ret void
// -- SingletonPayload destructiveInjectEnumTag
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future16SingletonPayloadOwui"
// CHECK: ret void
// -- SinglePayloadTrivial getEnumTag
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future20SinglePayloadTrivialOwug"
// CHECK: [[TAG:%.*]] = call i32 %{{.*}}(ptr noalias %value, i32 3, ptr getelementptr inbounds (%swift.full_existential_type, ptr @"$sBi64_N", i32 0, i32 1))
// CHECK: ret i32 [[TAG]]
// -- SinglePayloadTrivial destructiveProjectEnumData
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future20SinglePayloadTrivialOwup"
// CHECK: ret void
//
// Single-payload enums
//
// -- SinglePayloadTrivial destructiveInjectEnumTag
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future20SinglePayloadTrivialOwui"
// CHECK: call void %{{.*}}(ptr noalias %value, i32 %tag, i32 3, ptr getelementptr inbounds (%swift.full_existential_type, ptr @"$sBi64_N", i32 0, i32 1))
// CHECK-NEXT: ret void
// -- SinglePayloadNontrivial destroyBuffer
// CHECK: define internal void @"$s27enum_value_semantics_future23SinglePayloadNontrivialOwxx"(ptr noalias [[OBJ:%.*]], ptr %SinglePayloadNontrivial) {{.*}} {
// CHECK: [[PAYLOAD:%.*]] = load i64, ptr [[OBJ]], align 8
// CHECK-NEXT: switch i64 {{.*}}, label %[[RELEASE_PAYLOAD:[0-9]+]] [
// CHECK: i64 0, label %[[DONE:[0-9]+]]
// CHECK-native: i64 1, label %[[DONE]]
// CHECK-native: i64 2, label %[[DONE]]
// CHECK-objc-simulator-false: i64 2, label %[[DONE]]
// CHECK-objc-simulator-false: i64 4, label %[[DONE]]
// CHECK-objc-simulator-true: i64 1, label %[[DONE]]
// CHECK-objc-simulator-true: i64 2, label %[[DONE]]
// CHECK: ]
// CHECK: [[RELEASE_PAYLOAD]]:
// CHECK-NEXT: [[DATA:%.*]] = load ptr, ptr [[OBJ]], align 8
// CHECK-NEXT: call void @swift_release(ptr [[DATA]])
// CHECK-NEXT: br label %[[DONE]]
// CHECK: [[DONE]]:
// CHECK-NEXT: ret void
//
// Multi-payload enums
//
// -- MultiPayloadTrivial getEnumTag
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future19MultiPayloadTrivialOwug"
// -- Load the low bits of the tag from the payload area
// CHECK: [[NO_PAYLOAD_TAG_TMP:%.*]] = load i64, ptr %value, align 8
// -- Load the high bits of the tag from the extra tag area
// CHECK-NEXT: [[EXTRA_TAG_ADDR_TMP:%.*]] = getelementptr inbounds %T27enum_value_semantics_future19MultiPayloadTrivialO, ptr %value, i32 0, i32 1
// CHECK-NEXT: [[EXTRA_TAG_TMP:%.*]] = load i8, ptr [[EXTRA_TAG_ADDR_TMP]], align 8
// CHECK-NEXT: [[EXTRA_TAG:%.*]] = zext i8 [[EXTRA_TAG_TMP]] to i32
// CHECK-NEXT: [[NO_PAYLOAD_TAG:%.*]] = trunc i64 [[NO_PAYLOAD_TAG_TMP]] to i32
// CHECK-NEXT: [[NO_PAYLOAD_TAG2:%.*]] = add i32 [[NO_PAYLOAD_TAG]], 2
// -- Check if we have a payload or not
// CHECK-NEXT: [[IS_PAYLOAD:%.*]] = icmp uge i32 [[EXTRA_TAG]], 2
// CHECK-NEXT: [[TAG:%.*]] = select i1 [[IS_PAYLOAD]], i32 [[NO_PAYLOAD_TAG2]], i32 [[EXTRA_TAG]]
// -- Return the tag
// CHECK-NEXT: ret i32 [[TAG]]
// -- MultiPayloadTrivial destructiveProjectEnumData
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future19MultiPayloadTrivialOwup"
// CHECK: ret void
// -- MultiPayloadTrivial destructiveInjectEnumTag
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future19MultiPayloadTrivialOwui"
// CHECK: [[IS_PAYLOAD:%.*]] = icmp uge i32 %tag, 2
// CHECK-NEXT: br i1 [[IS_PAYLOAD]], label %[[HAS_NO_PAYLOAD:.*]], label %[[HAS_PAYLOAD:.*]]
// CHECK: [[HAS_NO_PAYLOAD]]:
// -- Compute the no-payload tag
// CHECK-NEXT: [[NO_PAYLOAD_TAG:%.*]] = sub i32 %tag, 2
// CHECK-NEXT: [[NO_PAYLOAD_TAG2:%.*]] = zext i32 [[NO_PAYLOAD_TAG]] to i64
// -- Store the low bits of the tag in the payload area
// CHECK-NEXT: store i64 [[NO_PAYLOAD_TAG2]], ptr %value, align 8
// -- Store the high bits of the tag in the extra tag area
// CHECK-NEXT: [[EXTRA_TAG_ADDR_TMP:%.*]] = getelementptr inbounds %T27enum_value_semantics_future19MultiPayloadTrivialO, ptr %value, i32 0, i32 1
// CHECK-NEXT: store i8 2, ptr [[EXTRA_TAG_ADDR_TMP]], align 8
// CHECK-NEXT: br label %[[DONE:.*]]
// CHECK: [[HAS_PAYLOAD]]:
// -- Store the tag in the extra tag area
// CHECK-NEXT: [[TAG:%.*]] = trunc i32 %tag to i8
// CHECK-NEXT: [[EXTRA_TAG_ADDR_TMP:%.*]] = getelementptr inbounds %T27enum_value_semantics_future19MultiPayloadTrivialO, ptr %value, i32 0, i32 1
// CHECK-NEXT: store i8 [[TAG]], ptr [[EXTRA_TAG_ADDR_TMP]], align 8
// CHECK-NEXT: br label %[[DONE]]
// CHECK: [[DONE]]:
// CHECK-NEXT: ret void
//
// Multi-payload enums with no empty cases
//
// -- MultiPayloadNoEmptyCases getEnumTag
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future24MultiPayloadNoEmptyCasesOwug"
// CHECK: [[NO_PAYLOAD_TAG_TMP:%.*]] = load i64, ptr %value, align 8
// -- The payload has no spare bits and there are no empty cases, so the tag
// is entirely contained in the extra tag area
// CHECK-NEXT: [[EXTRA_TAG_ADDR_TMP:%.*]] = getelementptr inbounds %T27enum_value_semantics_future24MultiPayloadNoEmptyCasesO, ptr %value, i32 0, i32 1
// CHECK-NEXT: [[EXTRA_TAG_TMP:%.*]] = load i1, ptr [[EXTRA_TAG_ADDR_TMP]], align 8
// CHECK-NEXT: [[EXTRA_TAG:%.*]] = zext i1 [[EXTRA_TAG_TMP]] to i32
// CHECK-NEXT: ret i32 [[EXTRA_TAG]]
// -- MultiPayloadNoEmptyCases destructiveProjectEnumData
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future24MultiPayloadNoEmptyCasesOwup"
// CHECK: ret void
// -- MultiPayloadNoEmptyCases destructiveInjectEnumTag
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future24MultiPayloadNoEmptyCasesOwui"
// CHECK: [[TAG:%.*]] = trunc i32 %tag to i1
// -- Store the tag in the extra tag area
// CHECK-NEXT: [[EXTRA_TAG_ADDR_TMP:%.*]] = getelementptr inbounds %T27enum_value_semantics_future24MultiPayloadNoEmptyCasesO, ptr %value, i32 0, i32 1
// CHECK-NEXT: store i1 [[TAG]], ptr [[EXTRA_TAG_ADDR_TMP]], align 8
// CHECK-NEXT: ret void
//
// Multi-payload enum with empty payloads -- payload tag is not used
//
// -- MultiPayloadEmptyPayload getEnumTag
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future017MultiPayloadEmptyF0Owug"
// -- Load the tag from the extra tag area
// CHECK: [[EXTRA_TAG_ADDR:%.*]] = getelementptr inbounds %T27enum_value_semantics_future017MultiPayloadEmptyF0O, ptr %value, i32 0, i32 0
// CHECK-NEXT: [[EXTRA_TAG_TMP:%.*]] = load i8, ptr [[EXTRA_TAG_ADDR]], align 1
// CHECK-NEXT: [[EXTRA_TAG:%.*]] = zext i8 [[EXTRA_TAG_TMP]] to i32
// CHECK-NEXT: ret i32 [[EXTRA_TAG]]
// -- MultiPayloadEmptyPayload destructiveProjectEnumData
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future017MultiPayloadEmptyF0Owup"
// CHECK: ret void
// -- MultiPayloadEmptyPayload destructiveInjectEnumTag
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future017MultiPayloadEmptyF0Owui"
// -- Store the tag in the extra tag area
// CHECK: [[TAG:%.*]] = trunc i32 %tag to i8
// CHECK-NEXT: [[EXTRA_TAG_ADDR:%.*]] = getelementptr inbounds %T27enum_value_semantics_future017MultiPayloadEmptyF0O, ptr %value, i32 0, i32 0
// CHECK-NEXT: store i8 [[TAG]], ptr [[EXTRA_TAG_ADDR]], align 1
// CHECK-NEXT: ret void
//
// Multi-payload enum with non-POD payloads
//
// -- MultiPayloadNontrivial destroyBuffer
// CHECK: define internal void @"$s27enum_value_semantics_future22MultiPayloadNontrivialOwxx"(ptr noalias [[OBJ:%.*]], ptr %MultiPayloadNontrivial)
// CHECK: [[PAYLOAD_0_ADDR:%.*]] = getelementptr
// CHECK-NEXT: [[PAYLOAD_0:%.*]] = load i64, ptr [[PAYLOAD_0_ADDR]], align 8
// CHECK-NEXT: [[PAYLOAD_1_ADDR:%.*]] = getelementptr
// CHECK-NEXT: [[PAYLOAD_1:%.*]] = load i64, ptr [[PAYLOAD_1_ADDR]], align 8
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds %T27enum_value_semantics_future22MultiPayloadNontrivialO, ptr {{.*}}, i32 0, i32 1
// CHECK-NEXT: [[TAG:%.*]] = load i8, ptr [[T0]], align 8
// CHECK-NEXT: @"$s27enum_value_semantics_future22MultiPayloadNontrivialOWOe"
// CHECK-NEXT: ret void
//
// Multi-payload enum with generic layout -- spare bits are not used
//
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future19MultiPayloadGenericOwug"
// CHECK: [[TAG:%.*]] = call i32 @swift_getEnumCaseMultiPayload(ptr %value, ptr %"MultiPayloadGeneric<T>")
// CHECK-NEXT: ret i32 [[TAG]]
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future19MultiPayloadGenericOwup"
// CHECK: ret void
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future19MultiPayloadGenericOwui"
// CHECK: call void @swift_storeEnumTagMultiPayload(ptr %value, ptr %"MultiPayloadGeneric<T>", i32 %tag)
// CHECK-NEXT: ret void
//
// Multi-payload enum with spare bits
//
// -- MultiPayloadNontrivialSpareBits destroyBuffer
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future31MultiPayloadNontrivialSpareBitsOwxx"
// CHECK-SAME: (ptr noalias [[OBJ:%.*]], ptr %MultiPayloadNontrivialSpareBits) {{.*}} {
// CHECK: [[PAYLOAD_0_ADDR:%.*]] = getelementptr
// CHECK-NEXT: [[PAYLOAD_0:%.*]] = load i64, ptr [[PAYLOAD_0_ADDR]], align 8
// CHECK-NEXT: [[PAYLOAD_1_ADDR:%.*]] = getelementptr
// CHECK-NEXT: [[PAYLOAD_1:%.*]] = load i64, ptr [[PAYLOAD_1_ADDR]], align 8
// CHECK: call void @"$s27enum_value_semantics_future31MultiPayloadNontrivialSpareBitsOWOe"
// CHECK-NEXT: ret void
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future31MultiPayloadNontrivialSpareBitsOwug"
// -- Load the payload
// CHECK: [[FIRST_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 0
// CHECK-NEXT: [[FIRST:%.*]] = load i64, ptr [[FIRST_ADDR]], align 8
// CHECK-NEXT: [[SECOND_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 1
// CHECK-NEXT: [[SECOND:%.*]] = load i64, ptr [[SECOND_ADDR]], align 8
// -- Get the high bits of the tag from the spare bits
// CHECK-NEXT: [[SPARE_TAG_TMP:%.*]] = lshr i64 [[SECOND]], 62
// CHECK-NEXT: [[SPARE_TAG_TMP2:%.*]] = trunc i64 [[SPARE_TAG_TMP]] to i8
// CHECK-NEXT: [[SPARE_TAG_TMP3:%.*]] = and i8 [[SPARE_TAG_TMP2]], 3
// CHECK-NEXT: [[SPARE_TAG:%.*]] = zext i8 [[SPARE_TAG_TMP3]] to i32
// -- Get the low bits of the tag from the payload area
// CHECK-NEXT: [[NO_PAYLOAD_TAG:%.*]] = trunc i64 [[FIRST]] to i32
// CHECK-NEXT: [[NO_PAYLOAD_TAG2:%.*]] = add i32 [[NO_PAYLOAD_TAG]], 3
// -- Check if we have a payload or not
// CHECK-NEXT: [[IS_PAYLOAD:%.*]] = icmp uge i32 [[SPARE_TAG]], 3
// -- Return the tag
// CHECK-NEXT: [[TAG:%.*]] = select i1 [[IS_PAYLOAD]], i32 [[NO_PAYLOAD_TAG2]], i32 [[SPARE_TAG]]
// CHECK-NEXT: ret i32 [[TAG]]
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future31MultiPayloadNontrivialSpareBitsOwup"
// -- Load the payload
// CHECK: [[FIRST_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 0
// CHECK-NEXT: [[FIRST:%.*]] = load i64, ptr [[FIRST_ADDR]], align 8
// CHECK-NEXT: [[SECOND_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 1
// CHECK-NEXT: [[SECOND:%.*]] = load i64, ptr [[SECOND_ADDR]], align 8
// -- Strip off spare bits
// CHECK-NEXT: [[SECOND_PROJ:%.*]] = and i64 [[SECOND]], 4611686018427387903
// -- Store the payload
// CHECK-NEXT: [[FIRST_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 0
// CHECK-NEXT: store i64 [[FIRST]], ptr [[FIRST_ADDR]], align 8
// CHECK-NEXT: [[SECOND_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 1
// CHECK-NEXT: store i64 [[SECOND_PROJ]], ptr [[SECOND_ADDR]], align 8
// CHECK-NEXT: ret void
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future31MultiPayloadNontrivialSpareBitsOwui"
// CHECK: [[IS_PAYLOAD:%.*]] = icmp uge i32 %tag, 3
// CHECK-NEXT: br i1 [[IS_PAYLOAD]], label %[[HAS_NO_PAYLOAD:.*]], label %[[HAS_PAYLOAD:.*]]
// CHECK: [[HAS_NO_PAYLOAD]]:
// -- Turn the case index into a no-payload case index
// CHECK-NEXT: [[NO_PAYLOAD_TAG:%.*]] = sub i32 %tag, 3
// CHECK-NEXT: [[NO_PAYLOAD_TAG2:%.*]] = zext i32 [[NO_PAYLOAD_TAG]] to i64
// -- Store the low bits of the tag into the payload
// CHECK-NEXT: [[FIRST_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 0
// CHECK-NEXT: store i64 [[NO_PAYLOAD_TAG2]], ptr [[FIRST_ADDR]], align 8
// -- Store the high bits of the tag into the spare bits
// CHECK-NEXT: [[SECOND_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 1
// -- 0xc000000000000000
// CHECK-NEXT: store i64 -4611686018427387904, ptr [[SECOND_ADDR]], align 8
// CHECK-NEXT: br label %[[END:.*]]
// CHECK: [[HAS_PAYLOAD]]:
// -- Not really necessary
// CHECK-NEXT: [[TAG_TMP:%.*]] = and i32 %tag, 3
// -- Load the payload
// CHECK-NEXT: [[FIRST_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 0
// CHECK-NEXT: [[FIRST:%.*]] = load i64, ptr [[FIRST_ADDR]], align 8
// CHECK-NEXT: [[SECOND_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 1
// CHECK-NEXT: [[SECOND:%.*]] = load i64, ptr [[SECOND_ADDR]], align 8
// -- Mask off spare bits in the payload -- 0x00fffffffffffff8
// CHECK-NEXT: [[SECOND_PROJ:%.*]] = and i64 [[SECOND]], 72057594037927928
// -- Store the low bits of the tag in the spare bits of the payload
// CHECK-NEXT: [[TAG:%.*]] = zext i32 [[TAG_TMP]] to i64
// CHECK-NEXT: [[SPARE_TAG_TMP2:%.*]] = shl i64 [[TAG]], 62
// -- Not really necessary -- 0xc000000000000000
// CHECK-NEXT: [[SPARE_TAG_TMP:%.*]] = and i64 [[SPARE_TAG_TMP2]], -4611686018427387904
// -- Apply the new spare bits
// CHECK-NEXT: [[SECOND_NEW:%.*]] = or i64 [[SPARE_TAG_TMP]], [[SECOND_PROJ]]
// -- Store the payload back
// CHECK-NEXT: [[FIRST_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 0
// CHECK-NEXT: store i64 [[FIRST]], ptr [[FIRST_ADDR]], align 8
// CHECK-NEXT: [[SECOND_ADDR:%.*]] = getelementptr inbounds { i64, i64 }, ptr %value, i32 0, i32 1
// CHECK-NEXT: store i64 [[SECOND_NEW]], ptr [[SECOND_ADDR]], align 8
// CHECK-NEXT: br label %[[END]]
// CHECK: [[END]]:
// CHECK-NEXT: ret void
// CHECK-LABEL: define internal i32 @"$s27enum_value_semantics_future029MultiPayloadSpareBitsAndExtraH0Owug"
// -- Load the payload
// CHECK: [[PAYLOAD:%.*]] = load i64, ptr %value, align 8
// -- Load the load bits of the tag from the extra tag area
// CHECK-NEXT: [[EXTRA_TAG_ADDR_TMP:%.*]] = getelementptr inbounds %T27enum_value_semantics_future029MultiPayloadSpareBitsAndExtraH0O, ptr %value, i32 0, i32 1
// CHECK-NEXT: [[EXTRA_TAG_TMP:%.*]] = load i1, ptr [[EXTRA_TAG_ADDR_TMP]], align 8
// -- Load the high bits of the tag from the spare bits area
// CHECK-NEXT: [[SPARE_BITS_TMP2:%.*]] = lshr i64 [[PAYLOAD]], 63
// CHECK-NEXT: [[SPARE_BITS_TMP:%.*]] = trunc i64 [[SPARE_BITS_TMP2]] to i8
// CHECK-NEXT: [[SPARE_BITS:%.*]] = and i8 [[SPARE_BITS_TMP]], 1
// CHECK-NEXT: [[EXTRA_TAG:%.*]] = zext i1 [[EXTRA_TAG_TMP]] to i8
// -- Combine high bits and low bits to form tag
// CHECK-NEXT: [[TAG_TMP:%.*]] = shl i8 [[EXTRA_TAG]], 1
// CHECK-NEXT: [[TAG:%.*]] = or i8 [[SPARE_BITS]], [[TAG_TMP]]
// CHECK-NEXT: [[RESULT:%.*]] = zext i8 [[TAG]] to i32
// CHECK-NEXT: ret i32 [[RESULT]]
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future029MultiPayloadSpareBitsAndExtraH0Owup"
// CHECK: [[PAYLOAD:%.*]] = load i64, ptr %value, align 8
// -- 0x7fffffffffffffff
// CHECK-NEXT: [[PAYLOAD_PROJ:%.*]] = and i64 [[PAYLOAD]], 9223372036854775807
// CHECK-NEXT: store i64 [[PAYLOAD_PROJ]], ptr %value, align 8
// CHECK-NEXT: ret void
// CHECK-LABEL: define internal void @"$s27enum_value_semantics_future029MultiPayloadSpareBitsAndExtraH0Owui"
// CHECK: [[SPARE_TAG_TMP3:%.*]] = and i32 %tag, 1
// -- Load the payload
// CHECK-NEXT: [[PAYLOAD:%.*]] = load i64, ptr {{.*}}, align 8
// -- Mask off the spare bits
// -- 0x7fffffffffffffff
// CHECK-NEXT: [[PAYLOAD_PROJ:%.*]] = and i64 [[PAYLOAD]], 9223372036854775807
// -- Store low bits of tag in spare bits area
// CHECK-NEXT: [[SPARE_TAG_TMP2:%.*]] = zext i32 [[SPARE_TAG_TMP3]] to i64
// CHECK-NEXT: [[SPARE_TAG_TMP:%.*]] = shl i64 [[SPARE_TAG_TMP2]], 63
// -- 0x8000000000000000
// CHECK-NEXT: [[SPARE_TAG:%.*]] = and i64 [[SPARE_TAG_TMP:%.*]], -9223372036854775808
// CHECK-NEXT: [[PAYLOAD_NEW:%.*]] = or i64 [[SPARE_TAG]], [[PAYLOAD_PROJ]]
// -- Store the payload
// CHECK-NEXT: store i64 [[PAYLOAD_NEW]], ptr {{.*}}, align 8
// -- Store high bits of tag in extra tag area
// CHECK-NEXT: [[EXTRA_TAG_TMP:%.*]] = lshr i32 %tag, 1
// CHECK-NEXT: [[EXTRA_TAG:%.*]] = trunc i32 [[EXTRA_TAG_TMP]] to i1
// CHECK-NEXT: [[EXTRA_TAG_ADDR_TMP:%.*]] = getelementptr inbounds %T27enum_value_semantics_future029MultiPayloadSpareBitsAndExtraH0O, ptr %value, i32 0, i32 1
// CHECK-NEXT: store i1 [[EXTRA_TAG]], ptr [[EXTRA_TAG_ADDR_TMP]], align 8
// CHECK-NEXT: ret void
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