68 lines · cpp
1// RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-GD2// RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=global-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-GD3// RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=local-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LD4// RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=initial-exec -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-IE5// RUN: %clang_cc1 %s -triple x86_64-pc-linux-gnu -ftls-model=local-exec -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LE6//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-GD9 10int z1 = 0;11int z2;12int __thread x;13int f() {14 static int __thread y;15 return y++;16}17int __thread __attribute__((tls_model("initial-exec"))) z;18 19struct S {20 S();21 ~S();22};23struct T {24 ~T();25};26 27struct S thread_local s1;28struct 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 034// CHECK-GD: @z2 ={{.*}} global i32 035// CHECK-GD: @x ={{.*}} thread_local global i32 036// CHECK-GD: @_ZZ1fvE1y = internal thread_local global i32 037// CHECK-GD: @z ={{.*}} thread_local(initialexec) global i32 038// CHECK-GD: @s1 ={{.*}} thread_local global %struct.S zeroinitializer39// CHECK-GD: @t1 ={{.*}} thread_local global %struct.T zeroinitializer40// CHECK-GD: @__tls_guard = internal thread_local global i8 041 42// CHECK-LD: @z1 ={{.*}} global i32 043// CHECK-LD: @z2 ={{.*}} global i32 044// CHECK-LD: @x ={{.*}} thread_local(localdynamic) global i32 045// CHECK-LD: @_ZZ1fvE1y = internal thread_local(localdynamic) global i32 046// CHECK-LD: @z ={{.*}} thread_local(initialexec) global i32 047// CHECK-LD: @s1 ={{.*}} thread_local(localdynamic) global %struct.S zeroinitializer48// CHECK-LD: @t1 ={{.*}} thread_local(localdynamic) global %struct.T zeroinitializer49// CHECK-LD: @__tls_guard = internal thread_local(localdynamic) global i8 050 51// CHECK-IE: @z1 ={{.*}} global i32 052// CHECK-IE: @z2 ={{.*}} global i32 053// CHECK-IE: @x ={{.*}} thread_local(initialexec) global i32 054// CHECK-IE: @_ZZ1fvE1y = internal thread_local(initialexec) global i32 055// CHECK-IE: @z ={{.*}} thread_local(initialexec) global i32 056// CHECK-IE: @s1 ={{.*}} thread_local(initialexec) global %struct.S zeroinitializer57// CHECK-IE: @t1 ={{.*}} thread_local(initialexec) global %struct.T zeroinitializer58// CHECK-IE: @__tls_guard = internal thread_local(initialexec) global i8 059 60// CHECK-LE: @z1 ={{.*}} global i32 061// CHECK-LE: @z2 ={{.*}} global i32 062// CHECK-LE: @x ={{.*}} thread_local(localexec) global i32 063// CHECK-LE: @_ZZ1fvE1y = internal thread_local(localexec) global i32 064// CHECK-LE: @z ={{.*}} thread_local(initialexec) global i32 065// CHECK-LE: @s1 ={{.*}} thread_local(localexec) global %struct.S zeroinitializer66// CHECK-LE: @t1 ={{.*}} thread_local(localexec) global %struct.T zeroinitializer67// CHECK-LE: @__tls_guard = internal thread_local(localexec) global i8 068