1 // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-GD 2 // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=global-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-GD 3 // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=local-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LD 4 // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=initial-exec -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-IE 5 // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=local-exec -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LE 6 // 7 // RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -femulated-tls -emit-llvm -o - 2>&1 | \ 8 // RUN: FileCheck %s -check-prefix=CHECK-GD 9 10 int z1 = 0; 11 int z2; 12 int __thread x; 13 int f() { 14 static int __thread y; 15 return y++; 16 } 17 int __thread __attribute__((tls_model("initial-exec"))) z; 18 19 struct S { 20 S(); 21 ~S(); 22 }; 23 struct T { 24 ~T(); 25 }; 26 27 struct S thread_local s1; 28 struct T thread_local t1; 29 30 // Note that unlike normal C uninitialized global variables, 31 // uninitialized TLS variables do NOT have COMMON linkage. 32 33 // CHECK-GD: @z1 = global i32 0 34 // CHECK-GD: @z2 = global i32 0 35 // CHECK-GD: @x = thread_local global i32 0 36 // CHECK-GD: @_ZZ1fvE1y = internal thread_local global i32 0 37 // CHECK-GD: @z = thread_local(initialexec) global i32 0 38 // CHECK-GD: @s1 = thread_local global %struct.S zeroinitializer 39 // CHECK-GD: @t1 = thread_local global %struct.T zeroinitializer 40 // CHECK-GD: @__tls_guard = internal thread_local global i8 0 41 42 // CHECK-LD: @z1 = global i32 0 43 // CHECK-LD: @z2 = global i32 0 44 // CHECK-LD: @x = thread_local(localdynamic) global i32 0 45 // CHECK-LD: @_ZZ1fvE1y = internal thread_local(localdynamic) global i32 0 46 // CHECK-LD: @z = thread_local(initialexec) global i32 0 47 // CHECK-LD: @s1 = thread_local(localdynamic) global %struct.S zeroinitializer 48 // CHECK-LD: @t1 = thread_local(localdynamic) global %struct.T zeroinitializer 49 // CHECK-LD: @__tls_guard = internal thread_local(localdynamic) global i8 0 50 51 // CHECK-IE: @z1 = global i32 0 52 // CHECK-IE: @z2 = global i32 0 53 // CHECK-IE: @x = thread_local(initialexec) global i32 0 54 // CHECK-IE: @_ZZ1fvE1y = internal thread_local(initialexec) global i32 0 55 // CHECK-IE: @z = thread_local(initialexec) global i32 0 56 // CHECK-IE: @s1 = thread_local(initialexec) global %struct.S zeroinitializer 57 // CHECK-IE: @t1 = thread_local(initialexec) global %struct.T zeroinitializer 58 // CHECK-IE: @__tls_guard = internal thread_local(initialexec) global i8 0 59 60 // CHECK-LE: @z1 = global i32 0 61 // CHECK-LE: @z2 = global i32 0 62 // CHECK-LE: @x = thread_local(localexec) global i32 0 63 // CHECK-LE: @_ZZ1fvE1y = internal thread_local(localexec) global i32 0 64 // CHECK-LE: @z = thread_local(initialexec) global i32 0 65 // CHECK-LE: @s1 = thread_local(localexec) global %struct.S zeroinitializer 66 // CHECK-LE: @t1 = thread_local(localexec) global %struct.T zeroinitializer 67 // CHECK-LE: @__tls_guard = internal thread_local(localexec) global i8 0 68