carbon-lang/toolchain/lower/testdata/interop/cpp/std_initializer_list.carbon

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/full.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/std_initializer_list.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/std_initializer_list.carbon

// --- initializer_list_pointer_pointer.h

namespace std {
  using size_t = decltype(sizeof(0));

  template <typename T> class initializer_list {
   public:
    initializer_list() {}

   private:
    T* begin_ = nullptr;
    T* end_ = nullptr;
  };
}

struct vector_like {
  vector_like(std::initializer_list<int> list) {}
  ~vector_like() {}
};

// --- initializer_list_pointer_size.h

namespace std {
  using size_t = decltype(sizeof(0));

  template <typename T> class initializer_list {
   public:
    initializer_list() {}

   private:
    T* begin_ = nullptr;
    size_t size_ = 0;
  };
}

struct vector_like {
  vector_like(std::initializer_list<int> list) {}
  ~vector_like() {}
};

// --- nontrivial_dtor.h

struct nontrivial_dtor {
  nontrivial_dtor() {}
  ~nontrivial_dtor() {}
};

// --- use_pointer_pointer.carbon

library "[[@TEST_NAME]]";

import Cpp library "initializer_list_pointer_pointer.h";
import Cpp library "nontrivial_dtor.h";

// TODO: When we support more precise modeling of temporary lifetimes, ensure
// that this is called *before* the elements of the underlying array are
// destroyed in the non-vector-like cases.
fn WithinLifetime();

fn InitDirectly() {
  var _: Cpp.std.initializer_list(i32) = (1, 2, 3);
  WithinLifetime();
}

fn InitVectorLike() {
  var _: Cpp.vector_like = (1, 2, 3);
  WithinLifetime();
}

fn InitNontrivialDtor() {
  var _: Cpp.std.initializer_list(Cpp.nontrivial_dtor) = ((), (), ());
  WithinLifetime();
}

// --- use_pointer_size.carbon

library "[[@TEST_NAME]]";

import Cpp library "initializer_list_pointer_size.h";
import Cpp library "nontrivial_dtor.h";

// TODO: When we support more precise modeling of temporary lifetimes, ensure
// that this is called *before* the elements of the underlying array are
// destroyed in the non-vector-like cases.
fn WithinLifetime();

fn InitDirectly() {
  var _: Cpp.std.initializer_list(i32) = (1, 2, 3);
  WithinLifetime();
}

fn InitVectorLike() {
  var _: Cpp.vector_like = (1, 2, 3);
  WithinLifetime();
}

fn InitNontrivialDtor() {
  var _: Cpp.std.initializer_list(Cpp.nontrivial_dtor) = ((), (), ());
  WithinLifetime();
}

// CHECK:STDOUT: ; ModuleID = 'use_pointer_pointer.carbon'
// CHECK:STDOUT: source_filename = "use_pointer_pointer.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: %"class.std::initializer_list" = type { ptr, ptr }
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN11vector_likeC2ESt16initializer_listIiE = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN15nontrivial_dtorC2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN11vector_likeD2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: @array = internal constant [3 x i32] [i32 1, i32 2, i32 3]
// CHECK:STDOUT: @array.loc13_50.15 = internal constant [3 x i32] [i32 1, i32 2, i32 3]
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_ZN11vector_likeC1ESt16initializer_listIiE.carbon_thunk(ptr noundef %list, ptr noundef %return) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %list.addr = alloca ptr, align 8
// CHECK:STDOUT:   %return.addr = alloca ptr, align 8
// CHECK:STDOUT:   %agg.tmp = alloca %"class.std::initializer_list", align 8
// CHECK:STDOUT:   store ptr %list, ptr %list.addr, align 8, !tbaa !11
// CHECK:STDOUT:   store ptr %return, ptr %return.addr, align 8, !tbaa !14
// CHECK:STDOUT:   %0 = load ptr, ptr %return.addr, align 8, !tbaa !14
// CHECK:STDOUT:   %1 = load ptr, ptr %list.addr, align 8, !tbaa !11
// CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 8 %agg.tmp, ptr align 8 %1, i64 16, i1 false), !tbaa.struct !16
// CHECK:STDOUT:   %2 = getelementptr inbounds nuw { ptr, ptr }, ptr %agg.tmp, i32 0, i32 0
// CHECK:STDOUT:   %3 = load ptr, ptr %2, align 8
// CHECK:STDOUT:   %4 = getelementptr inbounds nuw { ptr, ptr }, ptr %agg.tmp, i32 0, i32 1
// CHECK:STDOUT:   %5 = load ptr, ptr %4, align 8
// CHECK:STDOUT:   call void @_ZN11vector_likeC2ESt16initializer_listIiE(ptr noundef nonnull align 1 dereferenceable(1) %0, ptr %3, ptr %5)
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN11vector_likeC2ESt16initializer_listIiE(ptr noundef nonnull align 1 dereferenceable(1) %this, ptr %list.coerce0, ptr %list.coerce1) unnamed_addr #2 comdat align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %list = alloca %"class.std::initializer_list", align 8
// CHECK:STDOUT:   %this.addr = alloca ptr, align 8
// CHECK:STDOUT:   %0 = getelementptr inbounds nuw { ptr, ptr }, ptr %list, i32 0, i32 0
// CHECK:STDOUT:   store ptr %list.coerce0, ptr %0, align 8
// CHECK:STDOUT:   %1 = getelementptr inbounds nuw { ptr, ptr }, ptr %list, i32 0, i32 1
// CHECK:STDOUT:   store ptr %list.coerce1, ptr %1, align 8
// CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8, !tbaa !14
// CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_ZN15nontrivial_dtorC1Ev.carbon_thunk_tuple(ptr noundef %return) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %return.addr = alloca ptr, align 8
// CHECK:STDOUT:   store ptr %return, ptr %return.addr, align 8, !tbaa !19
// CHECK:STDOUT:   %0 = load ptr, ptr %return.addr, align 8, !tbaa !19
// CHECK:STDOUT:   call void @_ZN15nontrivial_dtorC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %0)
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN15nontrivial_dtorC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %this) unnamed_addr #2 comdat align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %this.addr = alloca ptr, align 8
// CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8, !tbaa !19
// CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CWithinLifetime.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CInitDirectly.Main() #3 !dbg !21 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %_.var = alloca [16 x i8], align 1, !dbg !24
// CHECK:STDOUT:   %.loc13_50.3.temp = alloca [3 x i32], align 4, !dbg !25
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !24
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc13_50.3.temp), !dbg !25
// CHECK:STDOUT:   %.loc13_50.4.array.index = getelementptr inbounds [3 x i32], ptr %.loc13_50.3.temp, i32 0, i64 0, !dbg !25
// CHECK:STDOUT:   %.loc13_50.7.array.index = getelementptr inbounds [3 x i32], ptr %.loc13_50.3.temp, i32 0, i64 1, !dbg !25
// CHECK:STDOUT:   %.loc13_50.10.array.index = getelementptr inbounds [3 x i32], ptr %.loc13_50.3.temp, i32 0, i64 2, !dbg !25
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.begin = getelementptr inbounds nuw [16 x i8], ptr %_.var, i32 0, i32 0, !dbg !24
// CHECK:STDOUT:   store ptr @array.loc13_50.15, ptr %initializer_list.initializer_list.call.init_list.begin, align 8, !dbg !24
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.end = getelementptr inbounds nuw [16 x i8], ptr %_.var, i32 0, i32 8, !dbg !24
// CHECK:STDOUT:   store ptr getelementptr inbounds ([3 x i32], ptr @array.loc13_50.15, i32 1), ptr %initializer_list.initializer_list.call.init_list.end, align 8, !dbg !24
// CHECK:STDOUT:   call void @_CWithinLifetime.Main(), !dbg !26
// CHECK:STDOUT:   ret void, !dbg !27
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CInitVectorLike.Main() #3 !dbg !28 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %_.var = alloca [1 x i8], align 1, !dbg !29
// CHECK:STDOUT:   %.loc18_36.2.temp = alloca [16 x i8], align 1, !dbg !30
// CHECK:STDOUT:   %.loc18_36.4.temp = alloca [3 x i32], align 4, !dbg !30
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !29
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc18_36.2.temp), !dbg !30
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc18_36.4.temp), !dbg !30
// CHECK:STDOUT:   %.loc18_36.5.array.index = getelementptr inbounds [3 x i32], ptr %.loc18_36.4.temp, i32 0, i64 0, !dbg !30
// CHECK:STDOUT:   %.loc18_36.8.array.index = getelementptr inbounds [3 x i32], ptr %.loc18_36.4.temp, i32 0, i64 1, !dbg !30
// CHECK:STDOUT:   %.loc18_36.11.array.index = getelementptr inbounds [3 x i32], ptr %.loc18_36.4.temp, i32 0, i64 2, !dbg !30
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.begin = getelementptr inbounds nuw [16 x i8], ptr %.loc18_36.2.temp, i32 0, i32 0, !dbg !30
// CHECK:STDOUT:   store ptr @array.loc13_50.15, ptr %initializer_list.initializer_list.call.init_list.begin, align 8, !dbg !30
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.end = getelementptr inbounds nuw [16 x i8], ptr %.loc18_36.2.temp, i32 0, i32 8, !dbg !30
// CHECK:STDOUT:   store ptr getelementptr inbounds ([3 x i32], ptr @array.loc13_50.15, i32 1), ptr %initializer_list.initializer_list.call.init_list.end, align 8, !dbg !30
// CHECK:STDOUT:   call void @_ZN11vector_likeC1ESt16initializer_listIiE.carbon_thunk(ptr %.loc18_36.2.temp, ptr %_.var), !dbg !29
// CHECK:STDOUT:   call void @_CWithinLifetime.Main(), !dbg !31
// CHECK:STDOUT:   call void @_ZN11vector_likeD2Ev(ptr %_.var), !dbg !29
// CHECK:STDOUT:   ret void, !dbg !32
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN11vector_likeD2Ev(ptr noundef nonnull align 1 dereferenceable(1) %this) unnamed_addr #2 comdat align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %this.addr = alloca ptr, align 8
// CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8, !tbaa !14
// CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CInitNontrivialDtor.Main() #3 !dbg !33 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %_.var = alloca [16 x i8], align 1, !dbg !34
// CHECK:STDOUT:   %.loc23_69.17.temp = alloca [3 x [1 x i8]], align 1, !dbg !35
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !34
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc23_69.17.temp), !dbg !35
// CHECK:STDOUT:   %.loc23_69.18.array.index = getelementptr inbounds [3 x [1 x i8]], ptr %.loc23_69.17.temp, i32 0, i64 0, !dbg !35
// CHECK:STDOUT:   call void @_ZN15nontrivial_dtorC1Ev.carbon_thunk_tuple(ptr %.loc23_69.18.array.index), !dbg !35
// CHECK:STDOUT:   %.loc23_69.16.array.index = getelementptr inbounds [3 x [1 x i8]], ptr %.loc23_69.17.temp, i32 0, i64 1, !dbg !35
// CHECK:STDOUT:   call void @_ZN15nontrivial_dtorC1Ev.carbon_thunk_tuple(ptr %.loc23_69.16.array.index), !dbg !35
// CHECK:STDOUT:   %.loc23_69.15.array.index = getelementptr inbounds [3 x [1 x i8]], ptr %.loc23_69.17.temp, i32 0, i64 2, !dbg !35
// CHECK:STDOUT:   call void @_ZN15nontrivial_dtorC1Ev.carbon_thunk_tuple(ptr %.loc23_69.15.array.index), !dbg !35
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.begin = getelementptr inbounds nuw [16 x i8], ptr %_.var, i32 0, i32 0, !dbg !34
// CHECK:STDOUT:   store ptr %.loc23_69.17.temp, ptr %initializer_list.initializer_list.call.init_list.begin, align 8, !dbg !34
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.end = getelementptr inbounds nuw [16 x i8], ptr %_.var, i32 0, i32 8, !dbg !34
// CHECK:STDOUT:   %initializer_list.initializer_list.call.array.end = getelementptr inbounds [3 x [1 x i8]], ptr %.loc23_69.17.temp, i32 1, !dbg !34
// CHECK:STDOUT:   store ptr %initializer_list.initializer_list.call.array.end, ptr %initializer_list.initializer_list.call.init_list.end, align 8, !dbg !34
// CHECK:STDOUT:   call void @_CWithinLifetime.Main(), !dbg !36
// CHECK:STDOUT:   ret void, !dbg !37
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #4
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 6, 5, 4, 3, 2, 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { alwaysinline mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT: attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #3 = { nounwind }
// CHECK:STDOUT: attributes #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !3 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !6 = !DIFile(filename: "use_pointer_pointer.carbon", directory: "")
// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !11 = !{!12, !12, i64 0}
// CHECK:STDOUT: !12 = !{!"p1 _ZTSSt16initializer_listIiE", !13, i64 0}
// CHECK:STDOUT: !13 = !{!"any pointer", !9, i64 0}
// CHECK:STDOUT: !14 = !{!15, !15, i64 0}
// CHECK:STDOUT: !15 = !{!"p1 _ZTS11vector_like", !13, i64 0}
// CHECK:STDOUT: !16 = !{i64 0, i64 8, !17, i64 8, i64 8, !17}
// CHECK:STDOUT: !17 = !{!18, !18, i64 0}
// CHECK:STDOUT: !18 = !{!"p1 int", !13, i64 0}
// CHECK:STDOUT: !19 = !{!20, !20, i64 0}
// CHECK:STDOUT: !20 = !{!"p1 _ZTS15nontrivial_dtor", !13, i64 0}
// CHECK:STDOUT: !21 = distinct !DISubprogram(name: "InitDirectly", linkageName: "_CInitDirectly.Main", scope: null, file: !6, line: 12, type: !22, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !22 = !DISubroutineType(types: !23)
// CHECK:STDOUT: !23 = !{null}
// CHECK:STDOUT: !24 = !DILocation(line: 13, column: 3, scope: !21)
// CHECK:STDOUT: !25 = !DILocation(line: 13, column: 42, scope: !21)
// CHECK:STDOUT: !26 = !DILocation(line: 14, column: 3, scope: !21)
// CHECK:STDOUT: !27 = !DILocation(line: 12, column: 1, scope: !21)
// CHECK:STDOUT: !28 = distinct !DISubprogram(name: "InitVectorLike", linkageName: "_CInitVectorLike.Main", scope: null, file: !6, line: 17, type: !22, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !29 = !DILocation(line: 18, column: 3, scope: !28)
// CHECK:STDOUT: !30 = !DILocation(line: 18, column: 28, scope: !28)
// CHECK:STDOUT: !31 = !DILocation(line: 19, column: 3, scope: !28)
// CHECK:STDOUT: !32 = !DILocation(line: 17, column: 1, scope: !28)
// CHECK:STDOUT: !33 = distinct !DISubprogram(name: "InitNontrivialDtor", linkageName: "_CInitNontrivialDtor.Main", scope: null, file: !6, line: 22, type: !22, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !34 = !DILocation(line: 23, column: 3, scope: !33)
// CHECK:STDOUT: !35 = !DILocation(line: 23, column: 58, scope: !33)
// CHECK:STDOUT: !36 = !DILocation(line: 24, column: 3, scope: !33)
// CHECK:STDOUT: !37 = !DILocation(line: 22, column: 1, scope: !33)
// CHECK:STDOUT: ; ModuleID = 'use_pointer_size.carbon'
// CHECK:STDOUT: source_filename = "use_pointer_size.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: %"class.std::initializer_list" = type { ptr, i64 }
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN11vector_likeC2ESt16initializer_listIiE = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN15nontrivial_dtorC2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN11vector_likeD2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: @array = internal constant [3 x i32] [i32 1, i32 2, i32 3]
// CHECK:STDOUT: @array.loc13_50.15 = internal constant [3 x i32] [i32 1, i32 2, i32 3]
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_ZN11vector_likeC1ESt16initializer_listIiE.carbon_thunk(ptr noundef %list, ptr noundef %return) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %list.addr = alloca ptr, align 8
// CHECK:STDOUT:   %return.addr = alloca ptr, align 8
// CHECK:STDOUT:   %agg.tmp = alloca %"class.std::initializer_list", align 8
// CHECK:STDOUT:   store ptr %list, ptr %list.addr, align 8, !tbaa !11
// CHECK:STDOUT:   store ptr %return, ptr %return.addr, align 8, !tbaa !14
// CHECK:STDOUT:   %0 = load ptr, ptr %return.addr, align 8, !tbaa !14
// CHECK:STDOUT:   %1 = load ptr, ptr %list.addr, align 8, !tbaa !11
// CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 8 %agg.tmp, ptr align 8 %1, i64 16, i1 false), !tbaa.struct !16
// CHECK:STDOUT:   %2 = getelementptr inbounds nuw { ptr, i64 }, ptr %agg.tmp, i32 0, i32 0
// CHECK:STDOUT:   %3 = load ptr, ptr %2, align 8
// CHECK:STDOUT:   %4 = getelementptr inbounds nuw { ptr, i64 }, ptr %agg.tmp, i32 0, i32 1
// CHECK:STDOUT:   %5 = load i64, ptr %4, align 8
// CHECK:STDOUT:   call void @_ZN11vector_likeC2ESt16initializer_listIiE(ptr noundef nonnull align 1 dereferenceable(1) %0, ptr %3, i64 %5)
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN11vector_likeC2ESt16initializer_listIiE(ptr noundef nonnull align 1 dereferenceable(1) %this, ptr %list.coerce0, i64 %list.coerce1) unnamed_addr #2 comdat align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %list = alloca %"class.std::initializer_list", align 8
// CHECK:STDOUT:   %this.addr = alloca ptr, align 8
// CHECK:STDOUT:   %0 = getelementptr inbounds nuw { ptr, i64 }, ptr %list, i32 0, i32 0
// CHECK:STDOUT:   store ptr %list.coerce0, ptr %0, align 8
// CHECK:STDOUT:   %1 = getelementptr inbounds nuw { ptr, i64 }, ptr %list, i32 0, i32 1
// CHECK:STDOUT:   store i64 %list.coerce1, ptr %1, align 8
// CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8, !tbaa !14
// CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_ZN15nontrivial_dtorC1Ev.carbon_thunk_tuple(ptr noundef %return) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %return.addr = alloca ptr, align 8
// CHECK:STDOUT:   store ptr %return, ptr %return.addr, align 8, !tbaa !21
// CHECK:STDOUT:   %0 = load ptr, ptr %return.addr, align 8, !tbaa !21
// CHECK:STDOUT:   call void @_ZN15nontrivial_dtorC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %0)
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN15nontrivial_dtorC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %this) unnamed_addr #2 comdat align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %this.addr = alloca ptr, align 8
// CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8, !tbaa !21
// CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CWithinLifetime.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CInitDirectly.Main() #3 !dbg !23 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %_.var = alloca [16 x i8], align 1, !dbg !26
// CHECK:STDOUT:   %.loc13_50.3.temp = alloca [3 x i32], align 4, !dbg !27
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !26
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc13_50.3.temp), !dbg !27
// CHECK:STDOUT:   %.loc13_50.4.array.index = getelementptr inbounds [3 x i32], ptr %.loc13_50.3.temp, i32 0, i64 0, !dbg !27
// CHECK:STDOUT:   %.loc13_50.7.array.index = getelementptr inbounds [3 x i32], ptr %.loc13_50.3.temp, i32 0, i64 1, !dbg !27
// CHECK:STDOUT:   %.loc13_50.10.array.index = getelementptr inbounds [3 x i32], ptr %.loc13_50.3.temp, i32 0, i64 2, !dbg !27
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.begin = getelementptr inbounds nuw [16 x i8], ptr %_.var, i32 0, i32 0, !dbg !26
// CHECK:STDOUT:   store ptr @array.loc13_50.15, ptr %initializer_list.initializer_list.call.init_list.begin, align 8, !dbg !26
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.size = getelementptr inbounds nuw [16 x i8], ptr %_.var, i32 0, i32 8, !dbg !26
// CHECK:STDOUT:   store i64 3, ptr %initializer_list.initializer_list.call.init_list.size, align 8, !dbg !26
// CHECK:STDOUT:   call void @_CWithinLifetime.Main(), !dbg !28
// CHECK:STDOUT:   ret void, !dbg !29
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CInitVectorLike.Main() #3 !dbg !30 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %_.var = alloca [1 x i8], align 1, !dbg !31
// CHECK:STDOUT:   %.loc18_36.2.temp = alloca [16 x i8], align 1, !dbg !32
// CHECK:STDOUT:   %.loc18_36.4.temp = alloca [3 x i32], align 4, !dbg !32
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !31
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc18_36.2.temp), !dbg !32
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc18_36.4.temp), !dbg !32
// CHECK:STDOUT:   %.loc18_36.5.array.index = getelementptr inbounds [3 x i32], ptr %.loc18_36.4.temp, i32 0, i64 0, !dbg !32
// CHECK:STDOUT:   %.loc18_36.8.array.index = getelementptr inbounds [3 x i32], ptr %.loc18_36.4.temp, i32 0, i64 1, !dbg !32
// CHECK:STDOUT:   %.loc18_36.11.array.index = getelementptr inbounds [3 x i32], ptr %.loc18_36.4.temp, i32 0, i64 2, !dbg !32
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.begin = getelementptr inbounds nuw [16 x i8], ptr %.loc18_36.2.temp, i32 0, i32 0, !dbg !32
// CHECK:STDOUT:   store ptr @array.loc13_50.15, ptr %initializer_list.initializer_list.call.init_list.begin, align 8, !dbg !32
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.size = getelementptr inbounds nuw [16 x i8], ptr %.loc18_36.2.temp, i32 0, i32 8, !dbg !32
// CHECK:STDOUT:   store i64 3, ptr %initializer_list.initializer_list.call.init_list.size, align 8, !dbg !32
// CHECK:STDOUT:   call void @_ZN11vector_likeC1ESt16initializer_listIiE.carbon_thunk(ptr %.loc18_36.2.temp, ptr %_.var), !dbg !31
// CHECK:STDOUT:   call void @_CWithinLifetime.Main(), !dbg !33
// CHECK:STDOUT:   call void @_ZN11vector_likeD2Ev(ptr %_.var), !dbg !31
// CHECK:STDOUT:   ret void, !dbg !34
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN11vector_likeD2Ev(ptr noundef nonnull align 1 dereferenceable(1) %this) unnamed_addr #2 comdat align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %this.addr = alloca ptr, align 8
// CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8, !tbaa !14
// CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CInitNontrivialDtor.Main() #3 !dbg !35 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %_.var = alloca [16 x i8], align 1, !dbg !36
// CHECK:STDOUT:   %.loc23_69.17.temp = alloca [3 x [1 x i8]], align 1, !dbg !37
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !36
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc23_69.17.temp), !dbg !37
// CHECK:STDOUT:   %.loc23_69.18.array.index = getelementptr inbounds [3 x [1 x i8]], ptr %.loc23_69.17.temp, i32 0, i64 0, !dbg !37
// CHECK:STDOUT:   call void @_ZN15nontrivial_dtorC1Ev.carbon_thunk_tuple(ptr %.loc23_69.18.array.index), !dbg !37
// CHECK:STDOUT:   %.loc23_69.16.array.index = getelementptr inbounds [3 x [1 x i8]], ptr %.loc23_69.17.temp, i32 0, i64 1, !dbg !37
// CHECK:STDOUT:   call void @_ZN15nontrivial_dtorC1Ev.carbon_thunk_tuple(ptr %.loc23_69.16.array.index), !dbg !37
// CHECK:STDOUT:   %.loc23_69.15.array.index = getelementptr inbounds [3 x [1 x i8]], ptr %.loc23_69.17.temp, i32 0, i64 2, !dbg !37
// CHECK:STDOUT:   call void @_ZN15nontrivial_dtorC1Ev.carbon_thunk_tuple(ptr %.loc23_69.15.array.index), !dbg !37
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.begin = getelementptr inbounds nuw [16 x i8], ptr %_.var, i32 0, i32 0, !dbg !36
// CHECK:STDOUT:   store ptr %.loc23_69.17.temp, ptr %initializer_list.initializer_list.call.init_list.begin, align 8, !dbg !36
// CHECK:STDOUT:   %initializer_list.initializer_list.call.init_list.size = getelementptr inbounds nuw [16 x i8], ptr %_.var, i32 0, i32 8, !dbg !36
// CHECK:STDOUT:   store i64 3, ptr %initializer_list.initializer_list.call.init_list.size, align 8, !dbg !36
// CHECK:STDOUT:   call void @_CWithinLifetime.Main(), !dbg !38
// CHECK:STDOUT:   ret void, !dbg !39
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #4
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 6, 5, 4, 3, 2, 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { alwaysinline mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT: attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #3 = { nounwind }
// CHECK:STDOUT: attributes #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !3 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !6 = !DIFile(filename: "use_pointer_size.carbon", directory: "")
// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !11 = !{!12, !12, i64 0}
// CHECK:STDOUT: !12 = !{!"p1 _ZTSSt16initializer_listIiE", !13, i64 0}
// CHECK:STDOUT: !13 = !{!"any pointer", !9, i64 0}
// CHECK:STDOUT: !14 = !{!15, !15, i64 0}
// CHECK:STDOUT: !15 = !{!"p1 _ZTS11vector_like", !13, i64 0}
// CHECK:STDOUT: !16 = !{i64 0, i64 8, !17, i64 8, i64 8, !19}
// CHECK:STDOUT: !17 = !{!18, !18, i64 0}
// CHECK:STDOUT: !18 = !{!"p1 int", !13, i64 0}
// CHECK:STDOUT: !19 = !{!20, !20, i64 0}
// CHECK:STDOUT: !20 = !{!"long", !9, i64 0}
// CHECK:STDOUT: !21 = !{!22, !22, i64 0}
// CHECK:STDOUT: !22 = !{!"p1 _ZTS15nontrivial_dtor", !13, i64 0}
// CHECK:STDOUT: !23 = distinct !DISubprogram(name: "InitDirectly", linkageName: "_CInitDirectly.Main", scope: null, file: !6, line: 12, type: !24, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !24 = !DISubroutineType(types: !25)
// CHECK:STDOUT: !25 = !{null}
// CHECK:STDOUT: !26 = !DILocation(line: 13, column: 3, scope: !23)
// CHECK:STDOUT: !27 = !DILocation(line: 13, column: 42, scope: !23)
// CHECK:STDOUT: !28 = !DILocation(line: 14, column: 3, scope: !23)
// CHECK:STDOUT: !29 = !DILocation(line: 12, column: 1, scope: !23)
// CHECK:STDOUT: !30 = distinct !DISubprogram(name: "InitVectorLike", linkageName: "_CInitVectorLike.Main", scope: null, file: !6, line: 17, type: !24, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !31 = !DILocation(line: 18, column: 3, scope: !30)
// CHECK:STDOUT: !32 = !DILocation(line: 18, column: 28, scope: !30)
// CHECK:STDOUT: !33 = !DILocation(line: 19, column: 3, scope: !30)
// CHECK:STDOUT: !34 = !DILocation(line: 17, column: 1, scope: !30)
// CHECK:STDOUT: !35 = distinct !DISubprogram(name: "InitNontrivialDtor", linkageName: "_CInitNontrivialDtor.Main", scope: null, file: !6, line: 22, type: !24, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !36 = !DILocation(line: 23, column: 3, scope: !35)
// CHECK:STDOUT: !37 = !DILocation(line: 23, column: 58, scope: !35)
// CHECK:STDOUT: !38 = !DILocation(line: 24, column: 3, scope: !35)
// CHECK:STDOUT: !39 = !DILocation(line: 22, column: 1, scope: !35)