| // RUN: %clang_cc1 -triple x86_64-pc-win32 -emit-llvm %s -o - | FileCheck --check-prefix=COFF %s |
| // COFF: @baz = dso_local global i32 42 |
| // COFF-NEXT: @import_var = external dllimport global i32 |
| // COFF-NEXT: @weak_bar = extern_weak global i32 |
| // COFF-NEXT: @bar = external dso_local global i32 |
| // COFF-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // COFF-NEXT: @thread_var = external dso_local thread_local global i32 |
| // COFF-DAG: declare dso_local void @foo() |
| // COFF-DAG: define dso_local i32* @zed() |
| // COFF-DAG: declare dllimport void @import_func() |
| |
| // RUN: %clang_cc1 -triple x86_64-w64-mingw32 -emit-llvm %s -o - | FileCheck --check-prefix=MINGW %s |
| // MINGW: @baz = dso_local global i32 42 |
| // MINGW-NEXT: @import_var = external dllimport global i32 |
| // MINGW-NEXT: @weak_bar = extern_weak global i32 |
| // MINGW-NEXT: @bar = external global i32 |
| // MINGW-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // MINGW-NEXT: @thread_var = external dso_local thread_local global i32 |
| // MINGW-DAG: declare dso_local void @foo() |
| // MINGW-DAG: define dso_local i32* @zed() |
| // MINGW-DAG: declare dllimport void @import_func() |
| |
| /// Static relocation model defaults to -fdirect-access-external-data and sets |
| /// dso_local on most global objects. |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -mrelocation-model static %s -o - | FileCheck --check-prefix=STATIC %s |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -mrelocation-model static -fdirect-access-external-data %s -o - | FileCheck --check-prefix=STATIC %s |
| // STATIC: @baz = dso_local global i32 42 |
| // STATIC-NEXT: @import_var = external dso_local global i32 |
| // STATIC-NEXT: @weak_bar = extern_weak dso_local global i32 |
| // STATIC-NEXT: @bar = external dso_local global i32 |
| // STATIC-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // STATIC-NEXT: @thread_var = external thread_local global i32 |
| // STATIC-DAG: declare dso_local void @foo() |
| // STATIC-DAG: define dso_local i32* @zed() |
| // STATIC-DAG: declare dso_local void @import_func() |
| |
| /// If -fno-direct-access-external-data is set, drop dso_local from global variable |
| /// declarations. |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -mrelocation-model static -fno-direct-access-external-data -o - | FileCheck --check-prefix=STATIC-INDIRECT %s |
| // STATIC-INDIRECT: @baz = dso_local global i32 42 |
| // STATIC-INDIRECT-NEXT: @import_var = external global i32 |
| // STATIC-INDIRECT-NEXT: @weak_bar = extern_weak global i32 |
| // STATIC-INDIRECT-NEXT: @bar = external global i32 |
| // STATIC-INDIRECT-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // STATIC-INDIRECT-NEXT: @thread_var = external thread_local global i32 |
| // STATIC-INDIRECT-DAG: declare void @import_func() |
| // STATIC-INDIRECT-DAG: define dso_local i32* @zed() |
| // STATIC-INDIRECT-DAG: declare void @foo() |
| |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 1 -pic-is-pie %s -o - | FileCheck --check-prefix=PIE %s |
| // PIE: @baz = dso_local global i32 42 |
| // PIE-NEXT: @import_var = external global i32 |
| // PIE-NEXT: @weak_bar = extern_weak global i32 |
| // PIE-NEXT: @bar = external global i32 |
| // PIE-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // PIE-NEXT: @thread_var = external thread_local global i32 |
| // PIE-DAG: declare void @foo() |
| // PIE-DAG: define dso_local i32* @zed() |
| // PIE-DAG: declare void @import_func() |
| |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 1 -pic-is-pie -fdirect-access-external-data %s -o - | FileCheck --check-prefix=PIE-DIRECT %s |
| // PIE-DIRECT: @baz = dso_local global i32 42 |
| // PIE-DIRECT-NEXT: @import_var = external dso_local global i32 |
| // PIE-DIRECT-NEXT: @weak_bar = extern_weak global i32 |
| // PIE-DIRECT-NEXT: @bar = external dso_local global i32 |
| // PIE-DIRECT-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // PIE-DIRECT-NEXT: @thread_var = external thread_local global i32 |
| // PIE-DIRECT-DAG: declare void @foo() |
| // PIE-DIRECT-DAG: define dso_local i32* @zed() |
| // PIE-DIRECT-DAG: declare void @import_func() |
| |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -mrelocation-model static -fno-plt %s -o - | FileCheck --check-prefix=NOPLT %s |
| // NOPLT: @baz = dso_local global i32 42 |
| // NOPLT-NEXT: @import_var = external dso_local global i32 |
| // NOPLT-NEXT: @weak_bar = extern_weak dso_local global i32 |
| // NOPLT-NEXT: @bar = external dso_local global i32 |
| // NOPLT-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // NOPLT-NEXT: @thread_var = external thread_local global i32 |
| // NOPLT-DAG: declare void @foo() |
| // NOPLT-DAG: define dso_local i32* @zed() |
| // NOPLT-DAG: declare void @import_func() |
| |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -fno-plt -pic-level 1 -pic-is-pie -fdirect-access-external-data %s -o - | FileCheck --check-prefix=PIE-DIRECT-NOPLT %s |
| // PIE-DIRECT-NOPLT: @baz = dso_local global i32 42 |
| // PIE-DIRECT-NOPLT-NEXT: @import_var = external dso_local global i32 |
| // PIE-DIRECT-NOPLT-NEXT: @weak_bar = extern_weak global i32 |
| // PIE-DIRECT-NOPLT-NEXT: @bar = external dso_local global i32 |
| // PIE-DIRECT-NOPLT-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // PIE-DIRECT-NOPLT-NEXT: @thread_var = external thread_local global i32 |
| // PIE-DIRECT-NOPLT-DAG: declare void @foo() |
| // PIE-DIRECT-NOPLT-DAG: define dso_local i32* @zed() |
| // PIE-DIRECT-NOPLT-DAG: declare void @import_func() |
| |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 1 -pic-is-pie -fno-plt %s -o - | FileCheck --check-prefix=PIE-NO-PLT %s |
| // RUN: %clang_cc1 -triple powerpc64le -emit-llvm -mrelocation-model static %s -o - | FileCheck --check-prefix=PIE-NO-PLT %s |
| // PIE-NO-PLT: @baz = dso_local global i32 42 |
| // PIE-NO-PLT-NEXT: @import_var = external global i32 |
| // PIE-NO-PLT-NEXT: @weak_bar = extern_weak global i32 |
| // PIE-NO-PLT-NEXT: @bar = external global i32 |
| // PIE-NO-PLT-NEXT: @local_thread_var = dso_local thread_local global i32 42 |
| // PIE-NO-PLT-NEXT: @thread_var = external thread_local global i32 |
| // PIE-NO-PLT-DAG: declare void @import_func() |
| // PIE-NO-PLT-DAG: define dso_local i32* @zed() |
| // PIE-NO-PLT-DAG: declare void @foo() |
| |
| /// -fdirect-access-external-data is currently ignored for -fPIC. |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 2 %s -o - | FileCheck --check-prefix=SHARED %s |
| // RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 2 -fdirect-access-external-data %s -o - | FileCheck --check-prefix=SHARED %s |
| // SHARED-DAG: @bar = external global i32 |
| // SHARED-DAG: @weak_bar = extern_weak global i32 |
| // SHARED-DAG: declare void @foo() |
| // SHARED-DAG: @baz ={{.*}} global i32 42 |
| // SHARED-DAG: define{{.*}} i32* @zed() |
| // SHARED-DAG: @thread_var = external thread_local global i32 |
| // SHARED-DAG: @local_thread_var ={{.*}} thread_local global i32 42 |
| |
| int baz = 42; |
| __attribute__((dllimport)) extern int import_var; |
| __attribute__((weak)) extern int weak_bar; |
| extern int bar; |
| __attribute__((dllimport)) void import_func(void); |
| |
| int *use_import() { |
| import_func(); |
| return &import_var; |
| } |
| |
| void foo(void); |
| |
| int *zed() { |
| foo(); |
| return baz ? &weak_bar : &bar; |
| } |
| |
| __thread int local_thread_var = 42; |
| extern __thread int thread_var; |
| int *get_thread_var(int a) { |
| return a ? &thread_var : &local_thread_var; |
| } |