| 1 | // RUN: %clang_tsan %s -o %t -framework Foundation |
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| 2 | // RUN: %deflake %run %t 2>&1 | FileCheck %s |
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| 3 | |
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| 4 | #import <Foundation/Foundation.h> |
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| 5 | |
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| 6 | #import "../test.h" |
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| 7 | |
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| 8 | long global; |
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| 9 | |
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| 10 | int main() { |
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| 11 | fprintf(stderr, format: "Hello world.\n" ); |
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| 12 | print_address("addr=" , 1, &global); |
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| 13 | barrier_init(barrier: &barrier, count: 2); |
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| 14 | |
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| 15 | global = 42; |
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| 16 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ |
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| 17 | global = 43; |
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| 18 | barrier_wait(barrier: &barrier); |
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| 19 | }); |
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| 20 | |
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| 21 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ |
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| 22 | barrier_wait(barrier: &barrier); |
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| 23 | global = 44; |
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| 24 | |
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| 25 | dispatch_sync(dispatch_get_main_queue(), ^{ |
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| 26 | CFRunLoopStop(CFRunLoopGetCurrent()); |
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| 27 | }); |
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| 28 | }); |
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| 29 | |
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| 30 | CFRunLoopRun(); |
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| 31 | fprintf(stderr, format: "Done.\n" ); |
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| 32 | } |
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| 33 | |
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| 34 | // CHECK: Hello world. |
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| 35 | // CHECK: WARNING: ThreadSanitizer: data race |
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| 36 | // CHECK: Write of size 8 |
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| 37 | // CHECK: Previous write of size 8 |
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| 38 | // CHECK: Location is global |
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| 39 | // CHECK: Thread {{.*}} is a GCD worker thread |
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| 40 | // CHECK-NOT: failed to restore the stack |
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| 41 | // CHECK: Thread {{.*}} is a GCD worker thread |
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| 42 | // CHECK-NOT: failed to restore the stack |
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| 43 | // CHECK: Done. |
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| 44 | |
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