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llvm-project/clang/test/Driver/threadsafe-statics.clcpp

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[OpenCL] __cpp_threadsafe_static_init is by default undefined in OpenCL mode. Definition of `__cpp_threadsafe_static_init` macro is controlled by language option Opts.ThreadsafeStatics. This patch sets language option to false by default in OpenCL mode, resulting in macro `__cpp_threadsafe_static_init` being undefined. Default value can be overridden using command line option -fthreadsafe-statics. Change is supposed to address portability because not all OpenCL vendors support thread safe implementation of static initialization. Fixes llvm.org/PR48012 Differential Revision: https://reviews.llvm.org/D107163
2021-07-27 19:21:35 +08:00
// RUN: %clang -### -c -DNO_THREADSAFE_STATICS %s 2>&1 | FileCheck --check-prefix=CHECK-NO-THREADSAFE-STATICS %s
// RUN: %clang -### -fno-threadsafe-statics -DNO_THREADSAFE_STATICS -c %s 2>&1 | FileCheck --check-prefix=CHECK-NO-THREADSAFE-STATICS %s
// CHECK-NO-THREADSAFE-STATICS: "-cc1"
// CHECK-NO-THREADSAFE-STATICS: "-fno-threadsafe-statics"
// CHECK-NO-THREADSAFE-STATICS-NOT: "-fthreadsafe-statics"
// RUN: %clang -### -fthreadsafe-statics -DTHREADSAFE_STATICS -c %s 2>&1 | FileCheck --check-prefix=CHECK-THREADSAFE-STATICS %s
// CHECK-THREADSAFE-STATICS: "-cc1"
// CHECK-THREADSAFE-STATICS-NOT: "-fno-threadsafe-statics"