diff options
Diffstat (limited to 'test/CodeGenCXX/cxx11-thread-local.cpp')
| -rw-r--r-- | test/CodeGenCXX/cxx11-thread-local.cpp | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/test/CodeGenCXX/cxx11-thread-local.cpp b/test/CodeGenCXX/cxx11-thread-local.cpp new file mode 100644 index 0000000..a7141d1 --- /dev/null +++ b/test/CodeGenCXX/cxx11-thread-local.cpp @@ -0,0 +1,173 @@ +// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s + +int f(); +int g(); + +// CHECK: @a = thread_local global i32 0 +thread_local int a = f(); +extern thread_local int b; +// CHECK: @c = global i32 0 +int c = b; +// CHECK: @_ZL1d = internal thread_local global i32 0 +static thread_local int d = g(); + +struct U { static thread_local int m; }; +// CHECK: @_ZN1U1mE = thread_local global i32 0 +thread_local int U::m = f(); + +template<typename T> struct V { static thread_local int m; }; +template<typename T> thread_local int V<T>::m = g(); + +// CHECK: @e = global i32 0 +int e = V<int>::m; + +// CHECK: @_ZN1VIiE1mE = weak_odr thread_local global i32 0 + +// CHECK: @_ZZ1fvE1n = internal thread_local global i32 0 + +// CHECK: @_ZGVZ1fvE1n = internal thread_local global i8 0 + +// CHECK: @_ZZ8tls_dtorvE1s = internal thread_local global +// CHECK: @_ZGVZ8tls_dtorvE1s = internal thread_local global i8 0 + +// CHECK: @_ZZ8tls_dtorvE1t = internal thread_local global +// CHECK: @_ZGVZ8tls_dtorvE1t = internal thread_local global i8 0 + +// CHECK: @_ZZ8tls_dtorvE1u = internal thread_local global +// CHECK: @_ZGVZ8tls_dtorvE1u = internal thread_local global i8 0 +// CHECK: @_ZGRZ8tls_dtorvE1u = internal thread_local global + +// CHECK: @_ZGVN1VIiE1mE = weak_odr thread_local global i64 0 + +// CHECK: @__tls_guard = internal thread_local global i8 0 + +// CHECK: @llvm.global_ctors = appending global {{.*}} @[[GLOBAL_INIT:[^ ]*]] + +// CHECK: @_ZTH1a = alias void ()* @__tls_init +// CHECK: @_ZTHL1d = alias internal void ()* @__tls_init +// CHECK: @_ZTHN1U1mE = alias void ()* @__tls_init +// CHECK: @_ZTHN1VIiE1mE = alias weak_odr void ()* @__tls_init + + +// Individual variable initialization functions: + +// CHECK: define {{.*}} @[[A_INIT:.*]]() +// CHECK: call i32 @_Z1fv() +// CHECK-NEXT: store i32 {{.*}}, i32* @a, align 4 + +// CHECK: define i32 @_Z1fv() +int f() { + // CHECK: %[[GUARD:.*]] = load i8* @_ZGVZ1fvE1n, align 1 + // CHECK: %[[NEED_INIT:.*]] = icmp eq i8 %[[GUARD]], 0 + // CHECK: br i1 %[[NEED_INIT]] + + // CHECK: %[[CALL:.*]] = call i32 @_Z1gv() + // CHECK: store i32 %[[CALL]], i32* @_ZZ1fvE1n, align 4 + // CHECK: store i8 1, i8* @_ZGVZ1fvE1n + // CHECK: br label + static thread_local int n = g(); + + // CHECK: load i32* @_ZZ1fvE1n, align 4 + return n; +} + +// CHECK: define {{.*}} @[[C_INIT:.*]]() +// CHECK: call i32* @_ZTW1b() +// CHECK-NEXT: load i32* %{{.*}}, align 4 +// CHECK-NEXT: store i32 %{{.*}}, i32* @c, align 4 + +// CHECK: define weak_odr hidden i32* @_ZTW1b() +// CHECK: br i1 icmp ne (void ()* @_ZTH1b, void ()* null), +// not null: +// CHECK: call void @_ZTH1b() +// CHECK: br label +// finally: +// CHECK: ret i32* @b + +// CHECK: define {{.*}} @[[D_INIT:.*]]() +// CHECK: call i32 @_Z1gv() +// CHECK-NEXT: store i32 %{{.*}}, i32* @_ZL1d, align 4 + +// CHECK: define {{.*}} @[[U_M_INIT:.*]]() +// CHECK: call i32 @_Z1fv() +// CHECK-NEXT: store i32 %{{.*}}, i32* @_ZN1U1mE, align 4 + +// CHECK: define {{.*}} @[[E_INIT:.*]]() +// CHECK: call i32* @_ZTWN1VIiE1mE() +// CHECK-NEXT: load i32* %{{.*}}, align 4 +// CHECK-NEXT: store i32 %{{.*}}, i32* @e, align 4 + +// CHECK: define weak_odr hidden i32* @_ZTWN1VIiE1mE() +// CHECK: call void @_ZTHN1VIiE1mE() +// CHECK: ret i32* @_ZN1VIiE1mE + + +struct S { S(); ~S(); }; +struct T { ~T(); }; + +// CHECK: define void @_Z8tls_dtorv() +void tls_dtor() { + // CHECK: load i8* @_ZGVZ8tls_dtorvE1s + // CHECK: call void @_ZN1SC1Ev(%struct.S* @_ZZ8tls_dtorvE1s) + // CHECK: call i32 @__cxa_thread_atexit({{.*}}@_ZN1SD1Ev {{.*}} @_ZZ8tls_dtorvE1s{{.*}} @__dso_handle + // CHECK: store i8 1, i8* @_ZGVZ8tls_dtorvE1s + static thread_local S s; + + // CHECK: load i8* @_ZGVZ8tls_dtorvE1t + // CHECK-NOT: _ZN1T + // CHECK: call i32 @__cxa_thread_atexit({{.*}}@_ZN1TD1Ev {{.*}}@_ZZ8tls_dtorvE1t{{.*}} @__dso_handle + // CHECK: store i8 1, i8* @_ZGVZ8tls_dtorvE1t + static thread_local T t; + + // CHECK: load i8* @_ZGVZ8tls_dtorvE1u + // CHECK: call void @_ZN1SC1Ev(%struct.S* @_ZGRZ8tls_dtorvE1u) + // CHECK: call i32 @__cxa_thread_atexit({{.*}}@_ZN1SD1Ev {{.*}} @_ZGRZ8tls_dtorvE1u{{.*}} @__dso_handle + // CHECK: store i8 1, i8* @_ZGVZ8tls_dtorvE1u + static thread_local const S &u = S(); +} + +// CHECK: declare i32 @__cxa_thread_atexit(void (i8*)*, i8*, i8*) + +// CHECK: define {{.*}} @[[V_M_INIT:.*]]() +// CHECK: load i8* bitcast (i64* @_ZGVN1VIiE1mE to i8*) +// CHECK: %[[V_M_INITIALIZED:.*]] = icmp eq i8 %{{.*}}, 0 +// CHECK: br i1 %[[V_M_INITIALIZED]], +// need init: +// CHECK: call i32 @_Z1gv() +// CHECK: store i32 %{{.*}}, i32* @_ZN1VIiE1mE, align 4 +// CHECK: store i64 1, i64* @_ZGVN1VIiE1mE +// CHECK: br label + +// CHECK: define {{.*}}@[[GLOBAL_INIT:.*]]() +// CHECK: call void @[[C_INIT]]() +// CHECK: call void @[[E_INIT]]() + + +// CHECK: define {{.*}}@__tls_init() +// CHECK: load i8* @__tls_guard +// CHECK: %[[NEED_TLS_INIT:.*]] = icmp eq i8 %{{.*}}, 0 +// CHECK: store i8 1, i8* @__tls_guard +// CHECK: br i1 %[[NEED_TLS_INIT]], +// init: +// CHECK: call void @[[A_INIT]]() +// CHECK: call void @[[D_INIT]]() +// CHECK: call void @[[U_M_INIT]]() +// CHECK: call void @[[V_M_INIT]]() + + +// CHECK: define weak_odr hidden i32* @_ZTW1a() { +// CHECK: call void @_ZTH1a() +// CHECK: ret i32* @a +// CHECK: } + + +// CHECK: declare extern_weak void @_ZTH1b() + + +// CHECK: define internal hidden i32* @_ZTWL1d() +// CHECK: call void @_ZTHL1d() +// CHECK: ret i32* @_ZL1d + +// CHECK: define weak_odr hidden i32* @_ZTWN1U1mE() +// CHECK: call void @_ZTHN1U1mE() +// CHECK: ret i32* @_ZN1U1mE |
