24 lines
468 B
C
24 lines
468 B
C
/* { dg-options "-O2 -msoft-stack" } */
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/* { dg-do run } */
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static __attribute__((noinline,noclone)) int f(int *p)
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{
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return __sync_lock_test_and_set(p, 1);
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}
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static __attribute__((noinline,noclone)) int g(int n)
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{
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/* Check that variable-length stack allocation works. */
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int v[n];
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v[0] = 0;
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/* Check that atomic operations can be applied to auto data. */
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return f(v) == 0 && v[0] == 1;
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}
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int main()
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{
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if (!g(1))
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__builtin_abort();
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return 0;
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}
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