| Richard Smith | 04e5176 | 2013-04-14 23:01:42 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s |
| 2 | |
| 3 | int g(); |
| 4 | |
| 5 | // CHECK: @_ZZ1fvE1n = internal thread_local global i32 0 |
| 6 | // CHECK: @_ZGVZ1fvE1n = internal thread_local global i8 0 |
| 7 | |
| 8 | // CHECK: @_ZZ8tls_dtorvE1s = internal thread_local global |
| 9 | // CHECK: @_ZGVZ8tls_dtorvE1s = internal thread_local global i8 0 |
| 10 | |
| 11 | // CHECK: @_ZZ8tls_dtorvE1t = internal thread_local global |
| 12 | // CHECK: @_ZGVZ8tls_dtorvE1t = internal thread_local global i8 0 |
| 13 | |
| 14 | // CHECK: @_ZZ8tls_dtorvE1u = internal thread_local global |
| 15 | // CHECK: @_ZGVZ8tls_dtorvE1u = internal thread_local global i8 0 |
| 16 | // CHECK: @_ZGRZ8tls_dtorvE1u = internal thread_local global |
| 17 | |
| 18 | // CHECK: define i32 @_Z1fv() |
| 19 | int f() { |
| 20 | // CHECK: %[[GUARD:.*]] = load i8* @_ZGVZ1fvE1n, align 1 |
| 21 | // CHECK: %[[NEED_INIT:.*]] = icmp eq i8 %[[GUARD]], 0 |
| 22 | // CHECK: br i1 %[[NEED_INIT]] |
| 23 | |
| 24 | // CHECK: %[[CALL:.*]] = call i32 @_Z1gv() |
| 25 | // CHECK: store i32 %[[CALL]], i32* @_ZZ1fvE1n, align 4 |
| 26 | // CHECK: store i8 1, i8* @_ZGVZ1fvE1n |
| 27 | // CHECK: br label |
| 28 | static thread_local int n = g(); |
| 29 | |
| 30 | // CHECK: load i32* @_ZZ1fvE1n, align 4 |
| 31 | return n; |
| 32 | } |
| 33 | |
| 34 | struct S { S(); ~S(); }; |
| 35 | struct T { ~T(); }; |
| 36 | |
| 37 | // CHECK: define void @_Z8tls_dtorv() |
| 38 | void tls_dtor() { |
| 39 | // CHECK: load i8* @_ZGVZ8tls_dtorvE1s |
| 40 | // CHECK: call void @_ZN1SC1Ev(%struct.S* @_ZZ8tls_dtorvE1s) |
| 41 | // CHECK: call i32 @__cxa_thread_atexit({{.*}}@_ZN1SD1Ev {{.*}} @_ZZ8tls_dtorvE1s{{.*}} @__dso_handle |
| 42 | // CHECK: store i8 1, i8* @_ZGVZ8tls_dtorvE1s |
| 43 | static thread_local S s; |
| 44 | |
| 45 | // CHECK: load i8* @_ZGVZ8tls_dtorvE1t |
| 46 | // CHECK-NOT: _ZN1T |
| 47 | // CHECK: call i32 @__cxa_thread_atexit({{.*}}@_ZN1TD1Ev {{.*}}@_ZZ8tls_dtorvE1t{{.*}} @__dso_handle |
| 48 | // CHECK: store i8 1, i8* @_ZGVZ8tls_dtorvE1t |
| 49 | static thread_local T t; |
| 50 | |
| 51 | // CHECK: load i8* @_ZGVZ8tls_dtorvE1u |
| 52 | // CHECK: call void @_ZN1SC1Ev(%struct.S* @_ZGRZ8tls_dtorvE1u) |
| 53 | // CHECK: call i32 @__cxa_thread_atexit({{.*}}@_ZN1SD1Ev {{.*}} @_ZGRZ8tls_dtorvE1u{{.*}} @__dso_handle |
| 54 | // CHECK: store i8 1, i8* @_ZGVZ8tls_dtorvE1u |
| 55 | static thread_local const S &u = S(); |
| 56 | } |