89 lines · c
1// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=WITHOUTATEXIT %s2// RUN: %clang_cc1 -triple x86_64-apple-darwin -fregister-global-dtors-with-atexit -debug-info-kind=line-tables-only -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=CXAATEXIT --check-prefix=WITHATEXIT %s3// RUN: %clang_cc1 -triple x86_64-apple-darwin -fno-use-cxa-atexit -fregister-global-dtors-with-atexit -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=ATEXIT --check-prefix=WITHATEXIT %s4 5// WITHOUTATEXIT: global_ctors{{.*}}@A{{.*}}@C6// WITHOUTATEXIT: @llvm.global_dtors = appending global [5 x { i32, ptr, ptr }]{{.*}}@B{{.*}}@E{{.*}}@F{{.*}}@G{{.*}}@D7// WITHATEXIT: @llvm.global_ctors = appending global [5 x { i32, ptr, ptr }]{{.*}}i32 65535, ptr @A,{{.*}}i32 65535, ptr @C,{{.*}}i32 123, ptr @__GLOBAL_init_123,{{.*}}i32 789, ptr @[[GLOBAL_INIT_789:__GLOBAL_init_789.[0-9]+]],{{.*}}i32 65535, ptr @__GLOBAL_init_65535,8// WITHATEXIT-NOT: global_dtors9 10// CHECK: define{{.*}} void @A()11// CHECK: define{{.*}} void @B()12// CHECK: define internal void @E()13// CHECK: define internal void @F()14// CHECK: define internal void @G()15// CHECK: define{{.*}} i32 @__GLOBAL_init_789(i32 noundef %{{.*}})16// CHECK: define internal void @C()17// CHECK: define internal i32 @foo()18// CHECK: define internal void @D()19// CHECK: define{{.*}} i32 @main()20// WITHOUTATEXIT-NOT: define21 22// CXAATEXIT: define internal void @__GLOBAL_init_123(){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions" !dbg ![[GLOBAL_INIT_SP:.*]] {23// ATEXIT: define internal void @__GLOBAL_init_123(){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions"24// CXAATEXIT: call i32 @__cxa_atexit(ptr @E, ptr null, ptr @__dso_handle) {{.*}}, !dbg ![[GLOBAL_INIT_LOC:.*]]25// CXAATEXIT: call i32 @__cxa_atexit(ptr @G, ptr null, ptr @__dso_handle)26// ATEXIT: call i32 @atexit(ptr @E)27// ATEXIT: call i32 @atexit(ptr @G)28 29// WITHATEXIT: define internal void @[[GLOBAL_INIT_789]](){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions"30// CXAATEXIT: call i32 @__cxa_atexit(ptr @F, ptr null, ptr @__dso_handle)31// ATEXIT: call i32 @atexit(ptr @F)32 33// WITHATEXIT: define internal void @__GLOBAL_init_65535(){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions"34// CXAATEXIT: call i32 @__cxa_atexit(ptr @B, ptr null, ptr @__dso_handle)35// CXAATEXIT: call i32 @__cxa_atexit(ptr @D, ptr null, ptr @__dso_handle)36// ATEXIT: call i32 @atexit(ptr @B)37// ATEXIT: call i32 @atexit(ptr @D)38 39int printf(const char *, ...);40 41void A(void) __attribute__((constructor));42void B(void) __attribute__((destructor));43 44void A(void) {45 printf("A\n");46}47 48void B(void) {49 printf("B\n");50}51 52static void C(void) __attribute__((constructor));53 54static void D(void) __attribute__((destructor));55 56static __attribute__((destructor(123))) void E(void) {57}58 59static __attribute__((destructor(789))) void F(void) {60}61 62static __attribute__((destructor(123))) void G(void) {63}64 65// Test that this function doesn't collide with the synthesized constructor66// function for destructors with priority 789.67int __GLOBAL_init_789(int a) {68 return a * a;69}70 71static int foo(void) {72 return 10;73}74 75static void C(void) {76 printf("A: %d\n", foo());77}78 79static void D(void) {80 printf("B\n");81}82 83int main(void) {84 return 0;85}86 87// CXAATEXIT: ![[GLOBAL_INIT_SP]] = distinct !DISubprogram(linkageName: "__GLOBAL_init_123",88// CXAATEXIT: ![[GLOBAL_INIT_LOC]] = !DILocation(line: 0, scope: ![[GLOBAL_INIT_SP]])89