| 1 | // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-GD |
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| 2 | // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=global-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-GD |
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| 3 | // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=local-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LD |
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| 4 | // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=initial-exec -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-IE |
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| 5 | // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=local-exec -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LE |
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| 6 | // |
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| 7 | // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -femulated-tls -emit-llvm -o - 2>&1 | \ |
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| 8 | // RUN: FileCheck %s -check-prefix=CHECK-GD |
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| 9 | |
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| 10 | int z1 = 0; |
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| 11 | int z2; |
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| 12 | int __thread x; |
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| 13 | int f() { |
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| 14 | static int __thread y; |
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| 15 | return y++; |
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| 16 | } |
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| 17 | int __thread __attribute__((tls_model("initial-exec"))) z; |
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| 18 | |
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| 19 | // Note that unlike normal C uninitialized global variables, |
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| 20 | // uninitialized TLS variables do NOT have COMMON linkage. |
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| 21 | |
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| 22 | // CHECK-GD: @z1 = global i32 0 |
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| 23 | // CHECK-GD: @f.y = internal thread_local global i32 0 |
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| 24 | // CHECK-GD: @z2 = common global i32 0 |
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| 25 | // CHECK-GD: @x = thread_local global i32 0 |
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| 26 | // CHECK-GD: @z = thread_local(initialexec) global i32 0 |
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| 27 | |
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| 28 | // CHECK-LD: @z1 = global i32 0 |
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| 29 | // CHECK-LD: @f.y = internal thread_local(localdynamic) global i32 0 |
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| 30 | // CHECK-LD: @z2 = common global i32 0 |
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| 31 | // CHECK-LD: @x = thread_local(localdynamic) global i32 0 |
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| 32 | // CHECK-LD: @z = thread_local(initialexec) global i32 0 |
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| 33 | |
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| 34 | // CHECK-IE: @z1 = global i32 0 |
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| 35 | // CHECK-IE: @f.y = internal thread_local(initialexec) global i32 0 |
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| 36 | // CHECK-IE: @z2 = common global i32 0 |
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| 37 | // CHECK-IE: @x = thread_local(initialexec) global i32 0 |
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| 38 | // CHECK-IE: @z = thread_local(initialexec) global i32 0 |
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| 39 | |
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| 40 | // CHECK-LE: @z1 = global i32 0 |
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| 41 | // CHECK-LE: @f.y = internal thread_local(localexec) global i32 0 |
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| 42 | // CHECK-LE: @z2 = common global i32 0 |
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| 43 | // CHECK-LE: @x = thread_local(localexec) global i32 0 |
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| 44 | // CHECK-LE: @z = thread_local(initialexec) global i32 0 |
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| 45 | |
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