diff options
Diffstat (limited to 'test/CodeGen/tls-model.c')
| -rw-r--r-- | test/CodeGen/tls-model.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/tls-model.c b/test/CodeGen/tls-model.c index b5bae77..41c8de0 100644 --- a/test/CodeGen/tls-model.c +++ b/test/CodeGen/tls-model.c @@ -3,7 +3,12 @@ // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=local-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LD // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=initial-exec -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-IE // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=local-exec -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LE +// +// RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -femulated-tls -emit-llvm -o - 2>&1 | \ +// RUN: FileCheck %s -check-prefix=CHECK-GD +int z1 = 0; +int z2; int __thread x; int f() { static int __thread y; @@ -11,18 +16,29 @@ int f() { } int __thread __attribute__((tls_model("initial-exec"))) z; +// Note that unlike normal C uninitialized global variables, +// uninitialized TLS variables do NOT have COMMON linkage. + +// CHECK-GD: @z1 = global i32 0 // CHECK-GD: @f.y = internal thread_local global i32 0 +// CHECK-GD: @z2 = common global i32 0 // CHECK-GD: @x = thread_local global i32 0 // CHECK-GD: @z = thread_local(initialexec) global i32 0 +// CHECK-LD: @z1 = global i32 0 // CHECK-LD: @f.y = internal thread_local(localdynamic) global i32 0 +// CHECK-LD: @z2 = common global i32 0 // CHECK-LD: @x = thread_local(localdynamic) global i32 0 // CHECK-LD: @z = thread_local(initialexec) global i32 0 +// CHECK-IE: @z1 = global i32 0 // CHECK-IE: @f.y = internal thread_local(initialexec) global i32 0 +// CHECK-IE: @z2 = common global i32 0 // CHECK-IE: @x = thread_local(initialexec) global i32 0 // CHECK-IE: @z = thread_local(initialexec) global i32 0 +// CHECK-LE: @z1 = global i32 0 // CHECK-LE: @f.y = internal thread_local(localexec) global i32 0 +// CHECK-LE: @z2 = common global i32 0 // CHECK-LE: @x = thread_local(localexec) global i32 0 // CHECK-LE: @z = thread_local(initialexec) global i32 0 |
