1 // Also check that -Wglobal-constructors does the right thing. Strictly 2 // speaking, this is a Sema test, but this avoids test case duplication. 3 // RUN: %clang_cc1 -Wglobal-constructors %s -verify -triple i686-windows-msvc -fms-extensions -std=c++11 4 // 5 // RUN: %clang_cc1 %s -emit-llvm -o - -triple i686-windows-msvc -fms-extensions -std=c++11 | FileCheck %s 6 7 struct __declspec(dllimport) Single { 8 void nonvirt(); 9 virtual void virt(); 10 }; 11 12 struct A { int a; }; 13 struct B { int b; }; 14 struct __declspec(dllimport) Multi : A, B { 15 void nonvirt(); 16 virtual void virt(); 17 }; 18 19 struct __declspec(dllimport) Virtual : virtual A { 20 void nonvirt(); 21 virtual void virt(); 22 }; 23 24 struct General; 25 static_assert(sizeof(void (General::*)()) == 16, "force general memptr model"); 26 struct __declspec(dllimport) General { 27 void nonvirt(); 28 virtual void virt(); 29 }; 30 31 auto mp_single_nv = &Single::nonvirt; // expected-warning {{global constructor}} 32 auto mp_multi_nv = &Multi::nonvirt; // expected-warning {{global constructor}} 33 auto mp_virtual_nv = &Virtual::nonvirt; // expected-warning {{global constructor}} 34 auto mp_general_nv = &General::nonvirt; // expected-warning {{global constructor}} 35 36 auto mp_single_v = &Single::virt; 37 auto mp_multi_v = &Multi::virt; 38 auto mp_virtual_v = &Virtual::virt; 39 auto mp_general_v = &General::virt; 40 41 // All of the non-virtual globals need dynamic initializers. 42 43 // CHECK: @"?mp_single_nv@@3P8Single@@AEXXZQ1@" = dso_local global i8* null, align 4 44 // CHECK: @"?mp_multi_nv@@3P8Multi@@AEXXZQ1@" = dso_local global { i8*, i32 } zeroinitializer, align 4 45 // CHECK: @"?mp_virtual_nv@@3P8Virtual@@AEXXZQ1@" = dso_local global { i8*, i32, i32 } zeroinitializer, align 4 46 // CHECK: @"?mp_general_nv@@3P8General@@AEXXZQ1@" = dso_local global { i8*, i32, i32, i32 } zeroinitializer, align 4 47 48 // CHECK: @"?mp_single_v@@3P8Single@@AEXXZQ1@" = dso_local global i8* bitcast (void (%struct.Single*, ...)* @"??_9Single@@$BA@AE" to i8*), align 4 49 // CHECK: @"?mp_multi_v@@3P8Multi@@AEXXZQ1@" = dso_local global { i8*, i32 } { i8* bitcast (void (%struct.Multi*, ...)* @"??_9Multi@@$BA@AE" to i8*), i32 0 }, align 4 50 // CHECK: @"?mp_virtual_v@@3P8Virtual@@AEXXZQ1@" = dso_local global { i8*, i32, i32 } { i8* bitcast (void (%struct.Virtual*, ...)* @"??_9Virtual@@$BA@AE" to i8*), i32 0, i32 0 }, align 4 51 // CHECK: @"?mp_general_v@@3P8General@@AEXXZQ1@" = dso_local global { i8*, i32, i32, i32 } { i8* bitcast (void (%struct.General*, ...)* @"??_9General@@$BA@AE" to i8*), i32 0, i32 0, i32 0 }, align 4 52 53 // CHECK: define internal void @_GLOBAL__sub_I{{.*}}() {{.*}} { 54 // CHECK: call void @"??__Emp_single_nv@@YAXXZ"() 55 // CHECK: call void @"??__Emp_multi_nv@@YAXXZ"() 56 // CHECK: call void @"??__Emp_virtual_nv@@YAXXZ"() 57 // CHECK: call void @"??__Emp_general_nv@@YAXXZ"() 58 // CHECK: } 59