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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2013-04-14 23:01:42 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2013-04-14 23:01:42 +0000 |
| commit | 04e517650569598e847c2ab609672e6df93effe5 (patch) | |
| tree | 6d717921ed048ee9beb7b631a0adb31984c02966 /test/CodeGenCXX/cxx11-thread-local.cpp | |
| parent | f6b4a6868cd292d211474abce98a7d9b541acf1b (diff) | |
CodeGen support for function-local static thread_local variables with
non-constant constructors or non-trivial destructors. Plus bugfixes for
thread_local references bound to temporaries (the temporaries themselves are
lifetime-extended to become thread_local), and the corresponding case for
std::initializer_list.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179496 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/cxx11-thread-local.cpp')
| -rw-r--r-- | test/CodeGenCXX/cxx11-thread-local.cpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/test/CodeGenCXX/cxx11-thread-local.cpp b/test/CodeGenCXX/cxx11-thread-local.cpp new file mode 100644 index 0000000000..5ed582d232 --- /dev/null +++ b/test/CodeGenCXX/cxx11-thread-local.cpp @@ -0,0 +1,56 @@ +// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s + +int g(); + +// 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: 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; +} + +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(); +} |