71 lines · cpp
1// RUN: %clang_cc1 %s -std=c++1y -triple=i686-pc-win32 -fms-compatibility-version=19.25 -emit-llvm -o - | FileCheck %s2// RUN: %clang_cc1 %s -std=c++1y -triple=i686-pc-win32 -fms-compatibility-version=19.20 -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LEGACY3// RUN: %clang_cc1 %s -std=c++1y -triple=i686-pc-win32 -fms-compatibility-version=19.25 -fno-ms-tls-guards -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-NO-GUARDS4// RUN: %clang_cc1 %s -std=c++1y -triple=i686-pc-win32 -fms-compatibility-version=19.25 -ftls-model=local-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LD5 6struct A {7 A();8 ~A();9};10 11// CHECK-DAG: $"??$a@X@@3UA@@A" = comdat any12// CHECK-DAG: @"??$a@X@@3UA@@A" = linkonce_odr dso_local thread_local global %struct.A zeroinitializer, comdat, align 113// CHECK-DAG: @"??__E?$a@X@@YAXXZ$initializer$" = internal constant ptr @"??__E?$a@X@@YAXXZ", section ".CRT$XDU", comdat($"??$a@X@@3UA@@A")14// CHECK-LD-DAG: $"??$a@X@@3UA@@A" = comdat any15// CHECK-LD-DAG: @"??$a@X@@3UA@@A" = linkonce_odr dso_local thread_local(localdynamic) global %struct.A zeroinitializer, comdat, align 116// CHECK-LD-DAG: @"??__E?$a@X@@YAXXZ$initializer$" = internal constant ptr @"??__E?$a@X@@YAXXZ", section ".CRT$XDU", comdat($"??$a@X@@3UA@@A")17template <typename T>18thread_local A a = A();19 20// CHECK-DAG: @"?b@@3UA@@A" = dso_local thread_local global %struct.A zeroinitializer, align 121// CHECK-DAG: @"__tls_init$initializer$" = internal constant ptr @__tls_init, section ".CRT$XDU"22// CHECK-DAG: @__tls_guard = external dso_local thread_local global i823// CHECK-LD-DAG: @"?b@@3UA@@A" = dso_local thread_local(localdynamic) global %struct.A zeroinitializer, align 124// CHECK-LD-DAG: @"__tls_init$initializer$" = internal constant ptr @__tls_init, section ".CRT$XDU"25// CHECK-LD-DAG: @__tls_guard = external dso_local thread_local global i826// CHECK-LEGACY-NOT: @__tls_guard = external dso_local thread_local global i827// CHECK-NO-GUARDS-NOT: @__tls_guard = external dso_local thread_local global i828thread_local A b;29 30// CHECK-LABEL: declare dso_local void @__dyn_tls_on_demand_init()31// CHECK-LD-LABEL: declare dso_local void @__dyn_tls_on_demand_init()32// CHECK-LEGACY-NOT: declare dso_local void @__dyn_tls_on_demand_init()33// CHECK-NO-GUARDS-NOT: declare dso_local void @__dyn_tls_on_demand_init()34 35// CHECK-LABEL: define dso_local void @"?f@@YA?AUA@@XZ"(ptr dead_on_unwind noalias writable sret(%struct.A) align 1 %agg.result)36// CHECK: call void @__dyn_tls_on_demand_init()37// CHECK-LD-LABEL: define dso_local void @"?f@@YA?AUA@@XZ"(ptr dead_on_unwind noalias writable sret(%struct.A) align 1 %agg.result)38// CHECK-LD: call void @__dyn_tls_on_demand_init()39// CHECK-LEGACY-NOT: call void @__dyn_tls_on_demand_init()40// CHECK-NO-GUARDS-NOT: call void @__dyn_tls_on_demand_init()41 42thread_local A &c = b;43thread_local A &d = c;44 45A f() {46 (void)a<void>;47 (void)b;48 return c;49}50 51// CHECK-LABEL: define dso_local noundef i32 @"?g@@YAHXZ"()52// CHECK-NOT: call void @__dyn_tls_on_demand_init()53// CHECK-LD-LABEL: define dso_local noundef i32 @"?g@@YAHXZ"()54// CHECK-LD-NOT: call void @__dyn_tls_on_demand_init()55 56thread_local int e = 2;57 58int g() {59 return e;60}61 62// CHECK-LABEL: define internal void @__tls_init()63// CHECK: call void @"??__Eb@@YAXXZ"64// CHECK-LD-LABEL: define internal void @__tls_init()65// CHECK-LD: call void @"??__Eb@@YAXXZ"66 67// CHECK: !llvm.linker.options = !{![[dyn_tls_init:[0-9]+]]}68// CHECK: ![[dyn_tls_init]] = !{!"/include:___dyn_tls_init@12"}69// CHECK-LD: !llvm.linker.options = !{![[dyn_tls_init:[0-9]+]]}70// CHECK-LD: ![[dyn_tls_init]] = !{!"/include:___dyn_tls_init@12"}71