45 lines
1.9 KiB
C
45 lines
1.9 KiB
C
// RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-GD
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// 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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// 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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// 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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// 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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//
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// RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -femulated-tls -emit-llvm -o - 2>&1 | \
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// RUN: FileCheck %s -check-prefix=CHECK-GD
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int z1 = 0;
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int z2;
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int __thread x;
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int f() {
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static int __thread y;
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return y++;
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}
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int __thread __attribute__((tls_model("initial-exec"))) z;
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// Note that unlike normal C uninitialized global variables,
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// uninitialized TLS variables do NOT have COMMON linkage.
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// CHECK-GD: @z1 = global i32 0
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// CHECK-GD: @f.y = internal thread_local global i32 0
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// CHECK-GD: @z2 = global i32 0
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// CHECK-GD: @x = thread_local global i32 0
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// CHECK-GD: @z = thread_local(initialexec) global i32 0
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// CHECK-LD: @z1 = global i32 0
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// CHECK-LD: @f.y = internal thread_local(localdynamic) global i32 0
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// CHECK-LD: @z2 = global i32 0
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// CHECK-LD: @x = thread_local(localdynamic) global i32 0
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// CHECK-LD: @z = thread_local(initialexec) global i32 0
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// CHECK-IE: @z1 = global i32 0
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// CHECK-IE: @f.y = internal thread_local(initialexec) global i32 0
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// CHECK-IE: @z2 = global i32 0
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// CHECK-IE: @x = thread_local(initialexec) global i32 0
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// CHECK-IE: @z = thread_local(initialexec) global i32 0
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// CHECK-LE: @z1 = global i32 0
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// CHECK-LE: @f.y = internal thread_local(localexec) global i32 0
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// CHECK-LE: @z2 = global i32 0
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// CHECK-LE: @x = thread_local(localexec) global i32 0
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// CHECK-LE: @z = thread_local(initialexec) global i32 0
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