59 lines · cpp
1// Also check that -Wglobal-constructors does the right thing. Strictly2// 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++114//5// RUN: %clang_cc1 %s -emit-llvm -o - -triple i686-windows-msvc -fms-extensions -std=c++11 | FileCheck %s6 7struct __declspec(dllimport) Single {8 void nonvirt();9 virtual void virt();10};11 12struct A { int a; };13struct B { int b; };14struct __declspec(dllimport) Multi : A, B {15 void nonvirt();16 virtual void virt();17};18 19struct __declspec(dllimport) Virtual : virtual A {20 void nonvirt();21 virtual void virt();22};23 24struct General;25static_assert(sizeof(void (General::*)()) == 16, "force general memptr model");26struct __declspec(dllimport) General {27 void nonvirt();28 virtual void virt();29};30 31auto mp_single_nv = &Single::nonvirt; // expected-warning {{global constructor}}32auto mp_multi_nv = &Multi::nonvirt; // expected-warning {{global constructor}}33auto mp_virtual_nv = &Virtual::nonvirt; // expected-warning {{global constructor}}34auto mp_general_nv = &General::nonvirt; // expected-warning {{global constructor}}35 36auto mp_single_v = &Single::virt;37auto mp_multi_v = &Multi::virt;38auto mp_virtual_v = &Virtual::virt;39auto 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 ptr null, align 444// CHECK: @"?mp_multi_nv@@3P8Multi@@AEXXZQ1@" = dso_local global { ptr, i32 } zeroinitializer, align 445// CHECK: @"?mp_virtual_nv@@3P8Virtual@@AEXXZQ1@" = dso_local global { ptr, i32, i32 } zeroinitializer, align 446// CHECK: @"?mp_general_nv@@3P8General@@AEXXZQ1@" = dso_local global { ptr, i32, i32, i32 } zeroinitializer, align 447 48// CHECK: @"?mp_single_v@@3P8Single@@AEXXZQ1@" = dso_local global ptr @"??_9Single@@$BA@AE", align 449// CHECK: @"?mp_multi_v@@3P8Multi@@AEXXZQ1@" = dso_local global { ptr, i32 } { ptr @"??_9Multi@@$BA@AE", i32 0 }, align 450// CHECK: @"?mp_virtual_v@@3P8Virtual@@AEXXZQ1@" = dso_local global { ptr, i32, i32 } { ptr @"??_9Virtual@@$BA@AE", i32 0, i32 0 }, align 451// CHECK: @"?mp_general_v@@3P8General@@AEXXZQ1@" = dso_local global { ptr, i32, i32, i32 } { ptr @"??_9General@@$BA@AE", i32 0, i32 0, i32 0 }, align 452 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