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