518 lines
17 KiB
C++
518 lines
17 KiB
C++
// RUN: %clang_cc1 -std=c++11 -triple x86_64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s
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namespace std {
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typedef decltype(sizeof(int)) size_t;
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// libc++'s implementation
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template <class _E>
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class initializer_list
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{
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const _E* __begin_;
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size_t __size_;
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initializer_list(const _E* __b, size_t __s)
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: __begin_(__b),
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__size_(__s)
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{}
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public:
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typedef _E value_type;
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typedef const _E& reference;
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typedef const _E& const_reference;
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typedef size_t size_type;
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typedef const _E* iterator;
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typedef const _E* const_iterator;
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initializer_list() : __begin_(nullptr), __size_(0) {}
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size_t size() const {return __size_;}
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const _E* begin() const {return __begin_;}
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const _E* end() const {return __begin_ + __size_;}
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};
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}
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struct destroyme1 {
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~destroyme1();
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};
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struct destroyme2 {
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~destroyme2();
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};
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struct witharg1 {
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witharg1(const destroyme1&);
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~witharg1();
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};
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struct wantslist1 {
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wantslist1(std::initializer_list<destroyme1>);
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~wantslist1();
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};
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// CHECK: @_ZGR15globalInitList1_ = internal constant [3 x i32] [i32 1, i32 2, i32 3]
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// CHECK: @globalInitList1 = global %{{[^ ]+}} { i32* getelementptr inbounds ([3 x i32], [3 x i32]* @_ZGR15globalInitList1_, i32 0, i32 0), i{{32|64}} 3 }
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std::initializer_list<int> globalInitList1 = {1, 2, 3};
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namespace thread_local_global_array {
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// FIXME: We should be able to constant-evaluate this even though the
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// initializer is not a constant expression (pointers to thread_local
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// objects aren't really a problem).
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//
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// CHECK: @_ZN25thread_local_global_array1xE = thread_local global
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// CHECK: @_ZGRN25thread_local_global_array1xE_ = internal thread_local constant [4 x i32] [i32 1, i32 2, i32 3, i32 4]
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std::initializer_list<int> thread_local x = { 1, 2, 3, 4 };
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}
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// CHECK: @globalInitList2 = global %{{[^ ]+}} zeroinitializer
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// CHECK: @_ZGR15globalInitList2_ = internal global [2 x %[[WITHARG:[^ ]*]]] zeroinitializer
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// CHECK: @_ZN15partly_constant1kE = global i32 0, align 4
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// CHECK: @_ZN15partly_constant2ilE = global {{.*}} null, align 8
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// CHECK: @[[PARTLY_CONSTANT_OUTER:_ZGRN15partly_constant2ilE.*]] = internal global {{.*}} zeroinitializer, align 8
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// CHECK: @[[PARTLY_CONSTANT_INNER:_ZGRN15partly_constant2ilE.*]] = internal global [3 x {{.*}}] zeroinitializer, align 8
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// CHECK: @[[PARTLY_CONSTANT_FIRST:_ZGRN15partly_constant2ilE.*]] = internal constant [3 x i32] [i32 1, i32 2, i32 3], align 4
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// CHECK: @[[PARTLY_CONSTANT_SECOND:_ZGRN15partly_constant2ilE.*]] = internal global [2 x i32] zeroinitializer, align 4
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// CHECK: @[[PARTLY_CONSTANT_THIRD:_ZGRN15partly_constant2ilE.*]] = internal constant [4 x i32] [i32 5, i32 6, i32 7, i32 8], align 4
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// CHECK: @[[REFTMP1:.*]] = private constant [2 x i32] [i32 42, i32 43], align 4
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// CHECK: @[[REFTMP2:.*]] = private constant [3 x %{{.*}}] [%{{.*}} { i32 1 }, %{{.*}} { i32 2 }, %{{.*}} { i32 3 }], align 4
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// CHECK: appending global
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// thread_local initializer:
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// CHECK-LABEL: define internal void
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// CHECK: store i32* getelementptr inbounds ([4 x i32], [4 x i32]* @_ZGRN25thread_local_global_array1xE_, i64 0, i64 0),
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// CHECK: i32** getelementptr inbounds ({{.*}}, {{.*}}* @_ZN25thread_local_global_array1xE, i32 0, i32 0), align 8
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// CHECK: store i64 4, i64* getelementptr inbounds ({{.*}}, {{.*}}* @_ZN25thread_local_global_array1xE, i32 0, i32 1), align 8
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// CHECK-LABEL: define internal void
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// CHECK: call void @_ZN8witharg1C1ERK10destroyme1(%[[WITHARG]]* getelementptr inbounds ([2 x %[[WITHARG]]], [2 x %[[WITHARG]]]* @_ZGR15globalInitList2_, i{{32|64}} 0, i{{32|64}} 0
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// CHECK: call void @_ZN8witharg1C1ERK10destroyme1(%[[WITHARG]]* getelementptr inbounds ([2 x %[[WITHARG]]], [2 x %[[WITHARG]]]* @_ZGR15globalInitList2_, i{{32|64}} 0, i{{32|64}} 1
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// CHECK: __cxa_atexit
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// CHECK: store %[[WITHARG]]* getelementptr inbounds ([2 x %[[WITHARG]]], [2 x %[[WITHARG]]]* @_ZGR15globalInitList2_, i64 0, i64 0),
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// CHECK: %[[WITHARG]]** getelementptr inbounds (%{{.*}}, %{{.*}}* @globalInitList2, i32 0, i32 0), align 8
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// CHECK: store i64 2, i64* getelementptr inbounds (%{{.*}}, %{{.*}}* @globalInitList2, i32 0, i32 1), align 8
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// CHECK: call void @_ZN10destroyme1D1Ev
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// CHECK: call void @_ZN10destroyme1D1Ev
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std::initializer_list<witharg1> globalInitList2 = {
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witharg1(destroyme1()), witharg1(destroyme1())
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};
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void fn1(int i) {
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// CHECK-LABEL: define void @_Z3fn1i
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// temporary array
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// CHECK: [[array:%[^ ]+]] = alloca [3 x i32]
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// CHECK: getelementptr inbounds [3 x i32], [3 x i32]* [[array]], i{{32|64}} 0
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// CHECK-NEXT: store i32 1, i32*
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: store
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: load
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// CHECK-NEXT: store
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// init the list
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: getelementptr inbounds [3 x i32], [3 x i32]*
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// CHECK-NEXT: store i32*
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: store i{{32|64}} 3
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std::initializer_list<int> intlist{1, 2, i};
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}
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void fn2() {
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// CHECK-LABEL: define void @_Z3fn2v
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void target(std::initializer_list<destroyme1>);
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// objects should be destroyed before dm2, after call returns
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// CHECK: call void @_Z6targetSt16initializer_listI10destroyme1E
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target({ destroyme1(), destroyme1() });
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// CHECK: call void @_ZN10destroyme1D1Ev
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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}
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void fn3() {
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// CHECK-LABEL: define void @_Z3fn3v
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// objects should be destroyed after dm2
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auto list = { destroyme1(), destroyme1() };
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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// CHECK: call void @_ZN10destroyme1D1Ev
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}
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void fn4() {
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// CHECK-LABEL: define void @_Z3fn4v
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void target(std::initializer_list<witharg1>);
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// objects should be destroyed before dm2, after call returns
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// CHECK: call void @_ZN8witharg1C1ERK10destroyme1
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// CHECK: call void @_Z6targetSt16initializer_listI8witharg1E
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target({ witharg1(destroyme1()), witharg1(destroyme1()) });
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// CHECK: call void @_ZN8witharg1D1Ev
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// CHECK: call void @_ZN10destroyme1D1Ev
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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}
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void fn5() {
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// CHECK-LABEL: define void @_Z3fn5v
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// temps should be destroyed before dm2
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// objects should be destroyed after dm2
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// CHECK: call void @_ZN8witharg1C1ERK10destroyme1
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auto list = { witharg1(destroyme1()), witharg1(destroyme1()) };
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// CHECK: call void @_ZN10destroyme1D1Ev
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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// CHECK: call void @_ZN8witharg1D1Ev
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}
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void fn6() {
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// CHECK-LABEL: define void @_Z3fn6v
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void target(const wantslist1&);
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// objects should be destroyed before dm2, after call returns
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// CHECK: call void @_ZN10wantslist1C1ESt16initializer_listI10destroyme1E
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// CHECK: call void @_Z6targetRK10wantslist1
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target({ destroyme1(), destroyme1() });
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// CHECK: call void @_ZN10wantslist1D1Ev
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// CHECK: call void @_ZN10destroyme1D1Ev
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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}
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void fn7() {
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// CHECK-LABEL: define void @_Z3fn7v
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// temps should be destroyed before dm2
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// object should be destroyed after dm2
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// CHECK: call void @_ZN10wantslist1C1ESt16initializer_listI10destroyme1E
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wantslist1 wl = { destroyme1(), destroyme1() };
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// CHECK: call void @_ZN10destroyme1D1Ev
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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// CHECK: call void @_ZN10wantslist1D1Ev
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}
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void fn8() {
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// CHECK-LABEL: define void @_Z3fn8v
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void target(std::initializer_list<std::initializer_list<destroyme1>>);
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// objects should be destroyed before dm2, after call returns
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// CHECK: call void @_Z6targetSt16initializer_listIS_I10destroyme1EE
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std::initializer_list<destroyme1> inner;
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target({ inner, { destroyme1() } });
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// CHECK: call void @_ZN10destroyme1D1Ev
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// Only one destroy loop, since only one inner init list is directly inited.
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// CHECK-NOT: call void @_ZN10destroyme1D1Ev
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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}
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void fn9() {
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// CHECK-LABEL: define void @_Z3fn9v
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// objects should be destroyed after dm2
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std::initializer_list<destroyme1> inner;
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std::initializer_list<std::initializer_list<destroyme1>> list =
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{ inner, { destroyme1() } };
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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// CHECK: call void @_ZN10destroyme1D1Ev
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// Only one destroy loop, since only one inner init list is directly inited.
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// CHECK-NOT: call void @_ZN10destroyme1D1Ev
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// CHECK: ret void
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}
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struct haslist1 {
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std::initializer_list<int> il;
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haslist1(int i);
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};
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// CHECK-LABEL: define void @_ZN8haslist1C2Ei
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haslist1::haslist1(int i)
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// CHECK: alloca [3 x i32]
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// CHECK: store i32 %
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// CHECK: store i32 2
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// CHECK: store i32 3
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: il{i, 2, 3}
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{
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destroyme2 dm2;
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}
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struct haslist2 {
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std::initializer_list<destroyme1> il;
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haslist2();
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};
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// CHECK-LABEL: define void @_ZN8haslist2C2Ev
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haslist2::haslist2()
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: il{destroyme1(), destroyme1()}
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{
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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// CHECK: call void @_ZN10destroyme1D1Ev
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}
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void fn10(int i) {
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// CHECK-LABEL: define void @_Z4fn10i
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// CHECK: alloca [3 x i32]
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// CHECK: call i8* @_Znw{{[jm]}}
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// CHECK: store i32 %
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// CHECK: store i32 2
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// CHECK: store i32 3
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// CHECK: store i32*
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(void) new std::initializer_list<int> {i, 2, 3};
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}
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void fn11() {
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// CHECK-LABEL: define void @_Z4fn11v
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(void) new std::initializer_list<destroyme1> {destroyme1(), destroyme1()};
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// CHECK: call void @_ZN10destroyme1D1Ev
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destroyme2 dm2;
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// CHECK: call void @_ZN10destroyme2D1Ev
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}
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namespace PR12178 {
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struct string {
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string(int);
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~string();
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};
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struct pair {
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string a;
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int b;
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};
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struct map {
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map(std::initializer_list<pair>);
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};
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map m{ {1, 2}, {3, 4} };
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}
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namespace rdar13325066 {
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struct X { ~X(); };
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// CHECK-LABEL: define void @_ZN12rdar133250664loopERNS_1XES1_
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void loop(X &x1, X &x2) {
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// CHECK: br label
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// CHECK: br i1
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// CHECK: br label
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// CHECK: call void @_ZN12rdar133250661XD1Ev
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// CHECK: br label
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// CHECK: br label
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// CHECK: call void @_ZN12rdar133250661XD1Ev
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// CHECK: br i1
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// CHECK: br label
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// CHECK: ret void
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for (X x : { x1, x2 }) { }
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}
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}
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namespace dtors {
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struct S {
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S();
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~S();
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};
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void z();
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// CHECK-LABEL: define void @_ZN5dtors1fEv(
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void f() {
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// CHECK: call void @_ZN5dtors1SC1Ev(
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// CHECK: call void @_ZN5dtors1SC1Ev(
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std::initializer_list<S>{ S(), S() };
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// Destruction loop for underlying array.
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// CHECK: br label
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// CHECK: call void @_ZN5dtors1SD1Ev(
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// CHECK: br i1
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// CHECK: call void @_ZN5dtors1zEv(
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z();
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// CHECK-NOT: call void @_ZN5dtors1SD1Ev(
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}
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// CHECK-LABEL: define void @_ZN5dtors1gEv(
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void g() {
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// CHECK: call void @_ZN5dtors1SC1Ev(
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// CHECK: call void @_ZN5dtors1SC1Ev(
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auto x = std::initializer_list<S>{ S(), S() };
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// Destruction loop for underlying array.
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// CHECK: br label
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// CHECK: call void @_ZN5dtors1SD1Ev(
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// CHECK: br i1
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// CHECK: call void @_ZN5dtors1zEv(
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z();
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// CHECK-NOT: call void @_ZN5dtors1SD1Ev(
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}
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// CHECK-LABEL: define void @_ZN5dtors1hEv(
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void h() {
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// CHECK: call void @_ZN5dtors1SC1Ev(
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// CHECK: call void @_ZN5dtors1SC1Ev(
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std::initializer_list<S> x = { S(), S() };
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// CHECK-NOT: call void @_ZN5dtors1SD1Ev(
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// CHECK: call void @_ZN5dtors1zEv(
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z();
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// Destruction loop for underlying array.
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// CHECK: br label
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// CHECK: call void @_ZN5dtors1SD1Ev(
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// CHECK: br i1
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}
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}
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namespace partly_constant {
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int k;
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std::initializer_list<std::initializer_list<int>> &&il = { { 1, 2, 3 }, { 4, k }, { 5, 6, 7, 8 } };
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// First init list.
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// CHECK-NOT: @[[PARTLY_CONSTANT_FIRST]],
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// CHECK: store i32* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_FIRST]], i64 0, i64 0),
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// CHECK: i32** getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_INNER]], i64 0, i64 0, i32 0)
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// CHECK: store i64 3, i64* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_INNER]], i64 0, i64 0, i32 1)
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// CHECK-NOT: @[[PARTLY_CONSTANT_FIRST]],
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//
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// Second init list array (non-constant).
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// CHECK: store i32 4, i32* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_SECOND]], i64 0, i64 0)
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// CHECK: load i32, i32* @_ZN15partly_constant1kE
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// CHECK: store i32 {{.*}}, i32* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_SECOND]], i64 0, i64 1)
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//
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// Second init list.
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// CHECK: store i32* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_SECOND]], i64 0, i64 0),
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// CHECK: i32** getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_INNER]], i64 0, i64 1, i32 0)
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// CHECK: store i64 2, i64* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_INNER]], i64 0, i64 1, i32 1)
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//
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// Third init list.
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// CHECK-NOT: @[[PARTLY_CONSTANT_THIRD]],
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// CHECK: store i32* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_THIRD]], i64 0, i64 0),
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// CHECK: i32** getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_INNER]], i64 0, i64 2, i32 0)
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// CHECK: store i64 4, i64* getelementptr inbounds ({{.*}}, {{.*}}* @_ZGRN15partly_constant2ilE4_, i64 0, i64 2, i32 1)
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// CHECK-NOT: @[[PARTLY_CONSTANT_THIRD]],
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//
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// Outer init list.
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// CHECK: store {{.*}}* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_INNER]], i64 0, i64 0),
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// CHECK: {{.*}}** getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_OUTER]], i32 0, i32 0)
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// CHECK: store i64 3, i64* getelementptr inbounds ({{.*}}, {{.*}}* @[[PARTLY_CONSTANT_OUTER]], i32 0, i32 1)
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//
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// 'il' reference.
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// CHECK: store {{.*}}* @[[PARTLY_CONSTANT_OUTER]], {{.*}}** @_ZN15partly_constant2ilE, align 8
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}
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namespace nested {
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struct A { A(); ~A(); };
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struct B { const A &a; ~B(); };
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struct C { std::initializer_list<B> b; ~C(); };
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void f();
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// CHECK-LABEL: define void @_ZN6nested1gEv(
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void g() {
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// CHECK: call void @_ZN6nested1AC1Ev(
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// CHECK-NOT: call
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// CHECK: call void @_ZN6nested1AC1Ev(
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// CHECK-NOT: call
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const C &c { { { A() }, { A() } } };
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// CHECK: call void @_ZN6nested1fEv(
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// CHECK-NOT: call
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f();
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// CHECK: call void @_ZN6nested1CD1Ev(
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// CHECK-NOT: call
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// Destroy B[2] array.
|
|
// FIXME: This isn't technically correct: reverse construction order would
|
|
// destroy the second B then the second A then the first B then the first A.
|
|
// CHECK: call void @_ZN6nested1BD1Ev(
|
|
// CHECK-NOT: call
|
|
// CHECK: br
|
|
|
|
// CHECK-NOT: call
|
|
// CHECK: call void @_ZN6nested1AD1Ev(
|
|
// CHECK-NOT: call
|
|
// CHECK: call void @_ZN6nested1AD1Ev(
|
|
// CHECK-NOT: call
|
|
// CHECK: }
|
|
}
|
|
}
|
|
|
|
namespace DR1070 {
|
|
struct A {
|
|
A(std::initializer_list<int>);
|
|
};
|
|
struct B {
|
|
int i;
|
|
A a;
|
|
};
|
|
B b = {1};
|
|
struct C {
|
|
std::initializer_list<int> a;
|
|
B b;
|
|
std::initializer_list<double> c;
|
|
};
|
|
C c = {};
|
|
}
|
|
|
|
namespace ArrayOfInitList {
|
|
struct S {
|
|
S(std::initializer_list<int>);
|
|
};
|
|
S x[1] = {};
|
|
}
|
|
|
|
namespace PR20445 {
|
|
struct vector { vector(std::initializer_list<int>); };
|
|
struct MyClass { explicit MyClass(const vector &v); };
|
|
template<int x> void f() { new MyClass({42, 43}); }
|
|
template void f<0>();
|
|
// CHECK-LABEL: define {{.*}} @_ZN7PR204451fILi0EEEvv(
|
|
// CHECK: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @[[REFTMP1]], i64 0, i64 0)
|
|
// CHECK: call void @_ZN7PR204456vectorC1ESt16initializer_listIiE(
|
|
// CHECK: call void @_ZN7PR204457MyClassC1ERKNS_6vectorE(
|
|
}
|
|
|
|
namespace ConstExpr {
|
|
class C {
|
|
int x;
|
|
public:
|
|
constexpr C(int x) : x(x) {}
|
|
};
|
|
void f(std::initializer_list<C>);
|
|
void g() {
|
|
// CHECK-LABEL: _ZN9ConstExpr1gEv
|
|
// CHECK: store %"class.ConstExpr::C"* getelementptr inbounds ([3 x %"class.ConstExpr::C"], [3 x %"class.ConstExpr::C"]* @[[REFTMP2]], i64 0, i64 0)
|
|
// CHECK: call void @_ZN9ConstExpr1fESt16initializer_listINS_1CEE
|
|
f({C(1), C(2), C(3)});
|
|
}
|
|
}
|
|
|
|
namespace B19773010 {
|
|
template <class T1, class T2> struct pair {
|
|
T1 first;
|
|
T2 second;
|
|
constexpr pair() : first(), second() {}
|
|
constexpr pair(T1 a, T2 b) : first(a), second(b) {}
|
|
};
|
|
|
|
enum E { ENUM_CONSTANT };
|
|
struct testcase {
|
|
testcase(std::initializer_list<pair<const char *, E>>);
|
|
};
|
|
void f1() {
|
|
// CHECK-LABEL: @_ZN9B197730102f1Ev
|
|
testcase a{{"", ENUM_CONSTANT}};
|
|
// CHECK: store %"struct.B19773010::pair"* getelementptr inbounds ([1 x %"struct.B19773010::pair"], [1 x %"struct.B19773010::pair"]* bitcast ([1 x { i8*, i32 }]* @.ref.tmp{{.*}} to [1 x %"struct.B19773010::pair"]*), i64 0, i64 0), %"struct.B19773010::pair"** %{{.*}}, align 8
|
|
}
|
|
void f2() {
|
|
// CHECK-LABEL: @_ZN9B197730102f2Ev
|
|
// CHECK: store %"struct.B19773010::pair"* getelementptr inbounds ([1 x %"struct.B19773010::pair"], [1 x %"struct.B19773010::pair"]* bitcast ([1 x { i8*, i32 }]* @_ZGRZN9B197730102f2EvE1p_ to [1 x %"struct.B19773010::pair"]*), i64 0, i64 0), %"struct.B19773010::pair"** getelementptr inbounds ([2 x %"class.std::initializer_list.10"], [2 x %"class.std::initializer_list.10"]* @_ZZN9B197730102f2EvE1p, i64 0, i64 1, i32 0), align 16
|
|
static std::initializer_list<pair<const char *, E>> a, p[2] =
|
|
{a, {{"", ENUM_CONSTANT}}};
|
|
}
|
|
|
|
void PR22940_helper(const pair<void*, int>&) { }
|
|
void PR22940() {
|
|
// CHECK-LABEL: @_ZN9B197730107PR22940Ev
|
|
// CHECK: call {{.*}} @_ZN9B197730104pairIPviEC{{.}}Ev(
|
|
// CHECK: call {{.*}} @_ZN9B1977301014PR22940_helperERKNS_4pairIPviEE(
|
|
PR22940_helper(pair<void*, int>());
|
|
}
|
|
}
|