24 lines
464 B
C
24 lines
464 B
C
/* { dg-do compile } */
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/* { dg-options "-O2" } */
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/* { dg-final { scan-assembler "xchg4 .*, r0" } } */
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/* { dg-final { scan-assembler "cmpxchg4.*, r0, .*" } } */
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/* { dg-final { scan-assembler "cmpxchg8.*, r0, .*" { target lp64 } } } */
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int
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foo1 (int *p)
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{
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return __sync_lock_test_and_set (p, 0);
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}
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int
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foo2 (int *p, int v)
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{
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return __sync_bool_compare_and_swap (p, v, 0);
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}
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long
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foo3 (long *p, long v)
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{
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return __sync_bool_compare_and_swap (p, v, 0);
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}
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