| 1 | // RUN: %clang_cc1 %s -triple=x86_64-pc-linuxs -emit-llvm -std=c++98 -o - | FileCheck -check-prefix=CHECK -check-prefix=CHECK98 %s |
| 2 | // RUN: %clang_cc1 %s -triple=x86_64-pc-linuxs -emit-llvm -std=c++11 -o - | FileCheck -check-prefix=CHECK -check-prefix=CHECK11 %s |
| 3 | |
| 4 | // CHECK: @_ZZ1hvE1i = internal global i32 0, align 4 |
| 5 | // CHECK: @base_req = global [4 x i8] c"foo\00", align 1 |
| 6 | // CHECK: @base_req_uchar = global [4 x i8] c"bar\00", align 1 |
| 7 | |
| 8 | // CHECK: @_ZZN5test31BC1EvE1u = internal global { i8, [3 x i8] } { i8 97, [3 x i8] undef }, align 4 |
| 9 | |
| 10 | // CHECK: @_ZZ2h2vE1i = linkonce_odr global i32 0, comdat, align 4 |
| 11 | // CHECK: @_ZGVZ2h2vE1i = linkonce_odr global i64 0, comdat, align 8{{$}} |
| 12 | // CHECK: @_ZZN5test1L6getvarEiE3var = internal constant [4 x i32] [i32 1, i32 0, i32 2, i32 4], align 16 |
| 13 | // CHECK98: @_ZZN5test414useStaticLocalEvE3obj = linkonce_odr global %"struct.test4::HasVTable" zeroinitializer, comdat, align 8 |
| 14 | // CHECK11: @_ZZN5test414useStaticLocalEvE3obj = linkonce_odr global { i8** } { i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTVN5test49HasVTableE, i32 0, inrange i32 0, i32 2) }, comdat, align 8 |
| 15 | |
| 16 | struct A { |
| 17 | A(); |
| 18 | ~A(); |
| 19 | }; |
| 20 | |
| 21 | void f() { |
| 22 | // CHECK: load atomic i8, i8* bitcast (i64* @_ZGVZ1fvE1a to i8*) acquire, align 8 |
| 23 | // CHECK: call i32 @__cxa_guard_acquire |
| 24 | // CHECK: call void @_ZN1AC1Ev |
| 25 | // CHECK: call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.A*)* @_ZN1AD1Ev to void (i8*)*), i8* getelementptr inbounds (%struct.A, %struct.A* @_ZZ1fvE1a, i32 0, i32 0), i8* @__dso_handle) |
| 26 | // CHECK: call void @__cxa_guard_release |
| 27 | static A a; |
| 28 | } |
| 29 | |
| 30 | void g() { |
| 31 | // CHECK: call i8* @_Znwm(i64 1) |
| 32 | // CHECK: call void @_ZN1AC1Ev( |
| 33 | static A& a = *new A; |
| 34 | } |
| 35 | |
| 36 | int a(); |
| 37 | void h() { |
| 38 | static const int i = a(); |
| 39 | } |
| 40 | |
| 41 | // CHECK: define linkonce_odr void @_Z2h2v() {{.*}} comdat { |
| 42 | inline void h2() { |
| 43 | static int i = a(); |
| 44 | } |
| 45 | |
| 46 | void h3() { |
| 47 | h2(); |
| 48 | } |
| 49 | |
| 50 | // PR6980: this shouldn't crash |
| 51 | namespace test0 { |
| 52 | struct A { A(); }; |
| 53 | __attribute__((noreturn)) int throw_exception(); |
| 54 | |
| 55 | void test() { |
| 56 | throw_exception(); |
| 57 | static A r; |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | namespace test1 { |
| 62 | // CHECK-LABEL: define internal i32 @_ZN5test1L6getvarEi( |
| 63 | static inline int getvar(int index) { |
| 64 | static const int var[] = { 1, 0, 2, 4 }; |
| 65 | return var[index]; |
| 66 | } |
| 67 | |
| 68 | void test() { (void) getvar(2); } |
| 69 | } |
| 70 | |
| 71 | // Make sure we emit the initializer correctly for the following: |
| 72 | char base_req[] = { "foo" }; |
| 73 | unsigned char base_req_uchar[] = { "bar" }; |
| 74 | |
| 75 | namespace union_static_local { |
| 76 | // CHECK-LABEL: define internal void @_ZZN18union_static_local4testEvEN1c4mainEv |
| 77 | // CHECK: call void @_ZN18union_static_local1fEPNS_1xE(%"union.union_static_local::x"* bitcast ({ [2 x i8*] }* @_ZZN18union_static_local4testEvE3foo to %"union.union_static_local::x"*)) |
| 78 | union x { long double y; const char *x[2]; }; |
| 79 | void f(union x*); |
| 80 | void test() { |
| 81 | static union x foo = { .x = { "a", "b" } }; |
| 82 | struct c { |
| 83 | static void main() { |
| 84 | f(&foo); |
| 85 | } |
| 86 | }; |
| 87 | c::main(); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | // rdar://problem/11091093 |
| 92 | // Static variables should be consistent across constructor |
| 93 | // or destructor variants. |
| 94 | namespace test2 { |
| 95 | struct A { |
| 96 | A(); |
| 97 | ~A(); |
| 98 | }; |
| 99 | |
| 100 | struct B : virtual A { |
| 101 | B(); |
| 102 | ~B(); |
| 103 | }; |
| 104 | |
| 105 | // If we ever implement this as a delegate ctor call, just change |
| 106 | // this to take variadic arguments or something. |
| 107 | extern int foo(); |
| 108 | B::B() { |
| 109 | static int x = foo(); |
| 110 | } |
| 111 | // CHECK-LABEL: define void @_ZN5test21BC2Ev |
| 112 | // CHECK: load atomic i8, i8* bitcast (i64* @_ZGVZN5test21BC1EvE1x to i8*) acquire, |
| 113 | // CHECK: call i32 @__cxa_guard_acquire(i64* @_ZGVZN5test21BC1EvE1x) |
| 114 | // CHECK: [[T0:%.*]] = call i32 @_ZN5test23fooEv() |
| 115 | // CHECK: store i32 [[T0]], i32* @_ZZN5test21BC1EvE1x, |
| 116 | // CHECK: call void @__cxa_guard_release(i64* @_ZGVZN5test21BC1EvE1x) |
| 117 | |
| 118 | // CHECK-LABEL: define void @_ZN5test21BC1Ev |
| 119 | // CHECK: load atomic i8, i8* bitcast (i64* @_ZGVZN5test21BC1EvE1x to i8*) acquire, |
| 120 | // CHECK: call i32 @__cxa_guard_acquire(i64* @_ZGVZN5test21BC1EvE1x) |
| 121 | // CHECK: [[T0:%.*]] = call i32 @_ZN5test23fooEv() |
| 122 | // CHECK: store i32 [[T0]], i32* @_ZZN5test21BC1EvE1x, |
| 123 | // CHECK: call void @__cxa_guard_release(i64* @_ZGVZN5test21BC1EvE1x) |
| 124 | |
| 125 | // This is just for completeness, because we actually emit this |
| 126 | // using a delegate dtor call. |
| 127 | B::~B() { |
| 128 | static int y = foo(); |
| 129 | } |
| 130 | // CHECK-LABEL: define void @_ZN5test21BD2Ev( |
| 131 | // CHECK: load atomic i8, i8* bitcast (i64* @_ZGVZN5test21BD1EvE1y to i8*) acquire, |
| 132 | // CHECK: call i32 @__cxa_guard_acquire(i64* @_ZGVZN5test21BD1EvE1y) |
| 133 | // CHECK: [[T0:%.*]] = call i32 @_ZN5test23fooEv() |
| 134 | // CHECK: store i32 [[T0]], i32* @_ZZN5test21BD1EvE1y, |
| 135 | // CHECK: call void @__cxa_guard_release(i64* @_ZGVZN5test21BD1EvE1y) |
| 136 | |
| 137 | // CHECK-LABEL: define void @_ZN5test21BD1Ev( |
| 138 | // CHECK: call void @_ZN5test21BD2Ev( |
| 139 | } |
| 140 | |
| 141 | // This shouldn't error out. |
| 142 | namespace test3 { |
| 143 | struct A { |
| 144 | A(); |
| 145 | ~A(); |
| 146 | }; |
| 147 | |
| 148 | struct B : virtual A { |
| 149 | B(); |
| 150 | ~B(); |
| 151 | }; |
| 152 | |
| 153 | B::B() { |
| 154 | union U { char x; int i; }; |
| 155 | static U u = { 'a' }; |
| 156 | } |
| 157 | // CHECK-LABEL: define void @_ZN5test31BC2Ev( |
| 158 | // CHECK-LABEL: define void @_ZN5test31BC1Ev( |
| 159 | } |
| 160 | |
| 161 | // We forgot to set the comdat when replacing the global with a different type. |
| 162 | namespace test4 { |
| 163 | struct HasVTable { |
| 164 | virtual void f(); |
| 165 | }; |
| 166 | inline HasVTable &useStaticLocal() { |
| 167 | static HasVTable obj; |
| 168 | return obj; |
| 169 | } |
| 170 | void useit() { |
| 171 | useStaticLocal(); |
| 172 | } |
| 173 | // CHECK: define linkonce_odr dereferenceable(8) %"struct.test4::HasVTable"* @_ZN5test414useStaticLocalEv() |
| 174 | // CHECK: ret %"struct.test4::HasVTable"*{{.*}} @_ZZN5test414useStaticLocalEvE3obj |
| 175 | } |
| 176 | |