5ff7a8e67b
Since MinGW supports automatically importing external variables from DLLs even without the DLLImport attribute, we shouldn't mark them as DSO local unless we actually know them to be local for sure. Keep marking thread local variables as DSO local. Differential Revision: https://reviews.llvm.org/D51382 llvm-svn: 340941
124 lines
6.1 KiB
C
124 lines
6.1 KiB
C
// RUN: %clang_cc1 -triple x86_64-pc-win32 -emit-llvm %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=COFF %s
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// COFF-DAG: @bar = external dso_local global i32
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// COFF-DAG: @weak_bar = extern_weak dso_local global i32
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// COFF-DAG: declare dso_local void @foo()
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// COFF-DAG: @baz = dso_local global i32 42
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// COFF-DAG: define dso_local i32* @zed()
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// COFF-DAG: @thread_var = external dso_local thread_local global i32
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// COFF-DAG: @local_thread_var = dso_local thread_local global i32 42
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// COFF-DAG: @import_var = external dllimport global i32
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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 -allow-deprecated-dag-overlap --check-prefix=MINGW %s
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// MINGW-DAG: @bar = external global i32
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// MINGW-DAG: @weak_bar = extern_weak global i32
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// MINGW-DAG: declare dso_local void @foo()
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// MINGW-DAG: @baz = dso_local global i32 42
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// MINGW-DAG: define dso_local i32* @zed()
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// MINGW-DAG: @thread_var = external dso_local thread_local global i32
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// MINGW-DAG: @local_thread_var = dso_local thread_local global i32 42
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// MINGW-DAG: @import_var = external dllimport global i32
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// MINGW-DAG: declare dllimport void @import_func()
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// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -mrelocation-model static %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=STATIC %s
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// STATIC-DAG: @bar = external dso_local global i32
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// STATIC-DAG: @weak_bar = extern_weak dso_local global i32
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// STATIC-DAG: declare dso_local void @foo()
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// STATIC-DAG: @baz = dso_local global i32 42
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// STATIC-DAG: define dso_local i32* @zed()
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// STATIC-DAG: @thread_var = external thread_local global i32
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// STATIC-DAG: @local_thread_var = dso_local thread_local global i32 42
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// STATIC-DAG: @import_var = external dso_local global i32
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// STATIC-DAG: declare dso_local void @import_func()
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// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie -mpie-copy-relocations %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-COPY %s
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// PIE-COPY-DAG: @bar = external dso_local global i32
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// PIE-COPY-DAG: @weak_bar = extern_weak global i32
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// PIE-COPY-DAG: declare void @foo()
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// PIE-COPY-DAG: @baz = dso_local global i32 42
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// PIE-COPY-DAG: define dso_local i32* @zed()
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// PIE-COPY-DAG: @thread_var = external thread_local global i32
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// PIE-COPY-DAG: @local_thread_var = dso_local thread_local global i32 42
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// PIE-COPY-DAG: @import_var = external dso_local global i32
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// PIE-COPY-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE %s
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// PIE-DAG: @bar = external global i32
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// PIE-DAG: @weak_bar = extern_weak global i32
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// PIE-DAG: declare void @foo()
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// PIE-DAG: @baz = dso_local global i32 42
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// PIE-DAG: define dso_local i32* @zed()
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// PIE-DAG: @thread_var = external thread_local global i32
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// PIE-DAG: @local_thread_var = dso_local thread_local global i32 42
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// PIE-DAG: @import_var = external global i32
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// PIE-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -mrelocation-model static -fno-plt %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=NOPLT %s
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// NOPLT-DAG: @bar = external dso_local global i32
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// NOPLT-DAG: @weak_bar = extern_weak dso_local global i32
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// NOPLT-DAG: declare void @foo()
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// NOPLT-DAG: @baz = dso_local global i32 42
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// NOPLT-DAG: define dso_local i32* @zed()
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// NOPLT-DAG: @thread_var = external thread_local global i32
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// NOPLT-DAG: @local_thread_var = dso_local thread_local global i32 42
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// NOPLT-DAG: @import_var = external dso_local global i32
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// NOPLT-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -fno-plt -pic-is-pie -mpie-copy-relocations %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-COPY-NOPLT %s
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// PIE-COPY-NOPLT-DAG: @bar = external dso_local global i32
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// PIE-COPY-NOPLT-DAG: @weak_bar = extern_weak global i32
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// PIE-COPY-NOPLT-DAG: declare void @foo()
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// PIE-COPY-NOPLT-DAG: @baz = dso_local global i32 42
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// PIE-COPY-NOPLT-DAG: define dso_local i32* @zed()
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// PIE-COPY-NOPLT-DAG: @thread_var = external thread_local global i32
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// PIE-COPY-NOPLT-DAG: @local_thread_var = dso_local thread_local global i32 42
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// PIE-COPY-NOPLT-DAG: @import_var = external dso_local global i32
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// PIE-COPY-NOPLT-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie -fno-plt %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-NO-PLT %s
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// RUN: %clang_cc1 -triple powerpc64le-pc-linux -emit-llvm -mrelocation-model static %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-NO-PLT %s
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// PIE-NO-PLT-DAG: @bar = external global i32
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// PIE-NO-PLT-DAG: @weak_bar = extern_weak global i32
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// PIE-NO-PLT-DAG: declare void @foo()
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// PIE-NO-PLT-DAG: @baz = dso_local global i32 42
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// PIE-NO-PLT-DAG: define dso_local i32* @zed()
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// PIE-NO-PLT-DAG: @thread_var = external thread_local global i32
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// PIE-NO-PLT-DAG: @local_thread_var = dso_local thread_local global i32 42
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// PIE-NO-PLT-DAG: @import_var = external global i32
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// PIE-NO-PLT-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm %s -o - | FileCheck -allow-deprecated-dag-overlap --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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// PIE-NO-PLT-DAG: @import_var = external global i32
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// PIE-NO-PLT-DAG: declare void @import_func()
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__attribute__((dllimport)) extern int import_var;
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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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extern int bar;
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__attribute__((weak)) extern int weak_bar;
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void foo(void);
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int baz = 42;
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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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extern __thread int thread_var;
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__thread int local_thread_var = 42;
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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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