| // RUN: %clang_cc1 %s -triple=i686-pc-win32 -fms-extensions -emit-llvm -o - | FileCheck %s |
| |
| int f(); |
| |
| // CHECK: $"?x@selectany_init@@3HA" = comdat any |
| // CHECK: $"?x@?$A@H@explicit_template_instantiation@@2HB" = comdat any |
| // CHECK: $"?x@?$A@H@implicit_template_instantiation@@2HB" = comdat any |
| |
| namespace simple_init { |
| #pragma init_seg(compiler) |
| int x = f(); |
| // CHECK: @"?x@simple_init@@3HA" = dso_local global i32 0, align 4 |
| // CHECK: @__cxx_init_fn_ptr = private constant void ()* @"??__Ex@simple_init@@YAXXZ", section ".CRT$XCC" |
| |
| #pragma init_seg(lib) |
| int y = f(); |
| // CHECK: @"?y@simple_init@@3HA" = dso_local global i32 0, align 4 |
| // CHECK: @__cxx_init_fn_ptr.1 = private constant void ()* @"??__Ey@simple_init@@YAXXZ", section ".CRT$XCL" |
| |
| #pragma init_seg(user) |
| int z = f(); |
| // CHECK: @"?z@simple_init@@3HA" = dso_local global i32 0, align 4 |
| // No function pointer! This one goes on @llvm.global_ctors. |
| } |
| |
| #pragma init_seg(".asdf") |
| |
| namespace internal_init { |
| namespace { |
| int x = f(); |
| // CHECK: @"?x@?A0x{{[^@]*}}@internal_init@@3HA" = internal global i32 0, align 4 |
| // CHECK: @__cxx_init_fn_ptr.2 = private constant void ()* @"??__Ex@?A0x{{[^@]*}}@internal_init@@YAXXZ", section ".asdf" |
| } |
| } |
| |
| namespace selectany_init { |
| int __declspec(selectany) x = f(); |
| // CHECK: @"?x@selectany_init@@3HA" = weak_odr dso_local global i32 0, comdat, align 4 |
| // CHECK: @__cxx_init_fn_ptr.3 = private constant void ()* @"??__Ex@selectany_init@@YAXXZ", section ".asdf", comdat($"?x@selectany_init@@3HA") |
| } |
| |
| namespace explicit_template_instantiation { |
| template <typename T> struct A { static const int x; }; |
| template <typename T> const int A<T>::x = f(); |
| template struct A<int>; |
| // CHECK: @"?x@?$A@H@explicit_template_instantiation@@2HB" = weak_odr dso_local global i32 0, comdat, align 4 |
| // CHECK: @__cxx_init_fn_ptr.4 = private constant void ()* @"??__Ex@?$A@H@explicit_template_instantiation@@2HB@YAXXZ", section ".asdf", comdat($"?x@?$A@H@explicit_template_instantiation@@2HB") |
| } |
| |
| namespace implicit_template_instantiation { |
| template <typename T> struct A { static const int x; }; |
| template <typename T> const int A<T>::x = f(); |
| int g() { return A<int>::x; } |
| // CHECK: @"?x@?$A@H@implicit_template_instantiation@@2HB" = linkonce_odr dso_local global i32 0, comdat, align 4 |
| // CHECK: @__cxx_init_fn_ptr.5 = private constant void ()* @"??__Ex@?$A@H@implicit_template_instantiation@@2HB@YAXXZ", section ".asdf", comdat($"?x@?$A@H@implicit_template_instantiation@@2HB") |
| } |
| |
| // ... and here's where we emitted user level ctors. |
| // CHECK: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] |
| // CHECK: [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_pragma_init_seg.cpp, i8* null }] |
| |
| // We have to mark everything used so we can survive globalopt, even through |
| // LTO. There's no way LLVM could really understand if data in the .asdf |
| // section is really used or dead. |
| // |
| // CHECK: @llvm.used = appending global [6 x i8*] |
| // CHECK: [i8* bitcast (void ()** @__cxx_init_fn_ptr to i8*), |
| // CHECK: i8* bitcast (void ()** @__cxx_init_fn_ptr.1 to i8*), |
| // CHECK: i8* bitcast (void ()** @__cxx_init_fn_ptr.2 to i8*), |
| // CHECK: i8* bitcast (void ()** @__cxx_init_fn_ptr.3 to i8*), |
| // CHECK: i8* bitcast (void ()** @__cxx_init_fn_ptr.4 to i8*), |
| // CHECK: i8* bitcast (void ()** @__cxx_init_fn_ptr.5 to i8*)], section "llvm.metadata" |
