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[NFC] [cxx-interop] Add SILGen tests for synthesized initializers. #32658

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Merged
swift-ci merged 1 commit into from
Jul 3, 2020
Merged

[NFC] [cxx-interop] Add SILGen tests for synthesized initializers. #32658

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4 changes: 4 additions & 0 deletions test/Interop/Cxx/class/Inputs/module.modulemap
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Original file line number Diff line number Diff line change
Expand Up @@ -21,3 +21,7 @@ module MemberVariables {
module ProtocolConformance {
header "protocol-conformance.h"
}

module SynthesizedInitializers {
header "synthesized-initializers.h"
}
5 changes: 5 additions & 0 deletions test/Interop/Cxx/class/Inputs/synthesized-initializers.h
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@@ -0,0 +1,5 @@
struct EmptyStruct {};

struct IntBox {
int x;
};
46 changes: 46 additions & 0 deletions test/Interop/Cxx/class/synthesized-initializers.swift
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@@ -0,0 +1,46 @@
// RUN: %target-swift-frontend -I %S/Inputs -enable-cxx-interop -emit-silgen %s | %FileCheck %s

import SynthesizedInitializers

// CHECK-LABEL: sil shared [transparent] [serializable] [ossa] @$sSo11EmptyStructVABycfC : $@convention(method) (@thin EmptyStruct.Type) -> EmptyStruct
// CHECK: bb0(%{{[0-9]+}} : $@thin EmptyStruct.Type):
// CHECK-NEXT: [[BOX:%.*]] = alloc_box ${ var EmptyStruct }
// CHECK-NEXT: [[UNINIT:%.*]] = mark_uninitialized [rootself] [[BOX]] : ${ var EmptyStruct }
// CHECK-NEXT: [[PTR:%.*]] = project_box [[UNINIT]] : ${ var EmptyStruct }, 0
// CHECK-NEXT: [[OBJ:%.*]] = builtin "zeroInitializer"<EmptyStruct>() : $EmptyStruct
// CHECK-NEXT: [[PA:%.*]] = begin_access [modify] [unknown] [[PTR]] : $*EmptyStruct
// CHECK-NEXT: assign [[OBJ]] to [[PA]]
// CHECK-NEXT: end_access [[PA]]
// CHECK-NEXT: [[OUT:%.*]] = load [trivial] [[PTR]]
// CHECK-NEXT: destroy_value [[UNINIT]]
// CHECK-NEXT: return [[OUT]]
// CHECK-LABEL: end sil function '$sSo11EmptyStructVABycfC'
public func emptyTypeNoArgInit() {
let e = EmptyStruct()
}

// CHECK-LABEL: sil shared [transparent] [serializable] [ossa] @$sSo6IntBoxVABycfC : $@convention(method) (@thin IntBox.Type) -> IntBox
// CHECK: bb0(%{{[0-9]+}} : $@thin IntBox.Type):
// CHECK-NEXT: [[BOX:%.*]] = alloc_box ${ var IntBox }
// CHECK-NEXT: [[UNINIT:%.*]] = mark_uninitialized [rootself] [[BOX]] : ${ var IntBox }
// CHECK-NEXT: [[PTR:%.*]] = project_box [[UNINIT]] : ${ var IntBox }, 0
// CHECK-NEXT: [[OBJ:%.*]] = builtin "zeroInitializer"<IntBox>() : $IntBox
// CHECK-NEXT: [[PA:%.*]] = begin_access [modify] [unknown] [[PTR]] : $*IntBox
// CHECK-NEXT: assign [[OBJ]] to [[PA]]
// CHECK-NEXT: end_access [[PA]]
// CHECK-NEXT: [[OUT:%.*]] = load [trivial] [[PTR]]
// CHECK-NEXT: destroy_value [[UNINIT]]
// CHECK-NEXT: return [[OUT]]
// CHECK-LABEL: end sil function '$sSo6IntBoxVABycfC'
public func singleMemberTypeNoArgInit() {
let i = IntBox()
}

// CHECK-LABEL: sil shared [transparent] [serializable] [ossa] @$sSo6IntBoxV1xABs5Int32V_tcfC : $@convention(method) (Int32, @thin IntBox.Type) -> IntBox
// CHECK: bb0([[I:%[0-9]+]] : $Int32, %{{[0-9]+}} : $@thin IntBox.Type):
// CHECK-NEXT: [[S:%.*]] = struct $IntBox ([[I]] : $Int32)
// CHECK-NEXT: return [[S]]
// CHECK-LABEL: end sil function '$sSo6IntBoxV1xABs5Int32V_tcfC'
public func singleMemberTypeValueInit() {
let i = IntBox(x: 42)
}