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-rw-r--r--test/tsan/Darwin/ignored-interceptors.mm55
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diff --git a/test/tsan/Darwin/ignored-interceptors.mm b/test/tsan/Darwin/ignored-interceptors.mm
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-// Check that ignore_interceptors_accesses=1 suppresses reporting races from
-// system libraries on OS X. There are currently false positives coming from
-// libxpc, libdispatch, CoreFoundation and others, because these libraries use
-// TSan-invisible atomics as synchronization.
-
-// RUN: %clang_tsan %s -o %t -framework Foundation
-
-// Check that without the flag, there are false positives.
-// RUN: %env_tsan_opts=ignore_noninstrumented_modules=0 %deflake %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-RACE
-
-// With ignore_interceptors_accesses=1, no races are reported.
-// RUN: %env_tsan_opts=ignore_noninstrumented_modules=0:ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s
-
-// With ignore_interceptors_accesses=1, races in user's code are still reported.
-// RUN: %env_tsan_opts=ignore_noninstrumented_modules=0:ignore_interceptors_accesses=1 %deflake %run %t race 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-RACE
-
-#import <Foundation/Foundation.h>
-
-#import "../test.h"
-
-long global;
-
-void *Thread1(void *x) {
- barrier_wait(&barrier);
- global = 42;
- return NULL;
-}
-
-void *Thread2(void *x) {
- global = 43;
- barrier_wait(&barrier);
- return NULL;
-}
-
-int main(int argc, char *argv[]) {
- fprintf(stderr, "Hello world.\n");
-
- // NSUserDefaults uses XPC which triggers the false positive.
- NSDictionary *d = [[NSUserDefaults standardUserDefaults] dictionaryRepresentation];
-
- if (argc > 1 && strcmp(argv[1], "race") == 0) {
- barrier_init(&barrier, 2);
- pthread_t t[2];
- pthread_create(&t[0], NULL, Thread1, NULL);
- pthread_create(&t[1], NULL, Thread2, NULL);
- pthread_join(t[0], NULL);
- pthread_join(t[1], NULL);
- }
-
- fprintf(stderr, "Done.\n");
-}
-
-// CHECK: Hello world.
-// CHECK-RACE: SUMMARY: ThreadSanitizer: data race
-// CHECK: Done.