1// RUN: %clang     -target x86_64-unknown-linux -fsanitize=thread %s -S -emit-llvm -o - | FileCheck %s
2// RUN: %clang -O1 -target x86_64-unknown-linux -fsanitize=thread %s -S -emit-llvm -o - | FileCheck %s
3// RUN: %clang -O2 -target x86_64-unknown-linux -fsanitize=thread %s -S -emit-llvm -o - | FileCheck %s
4// RUN: %clang -O3 -target x86_64-unknown-linux -fsanitize=thread %s -S -emit-llvm -o - | FileCheck %s
5// RUN: %clang     -target x86_64-unknown-linux -fsanitize=thread  %s -S -emit-llvm -o - | FileCheck %s
6// Verify that -fsanitize=thread invokes tsan instrumentation.
7
8int foo(int *a) { return *a; }
9// CHECK: __tsan_init
10