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Rev 154 |
Rev 816 |
/* { dg-do compile } */
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/* { dg-do compile } */
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/* { dg-require-effective-target sync_int_long } */
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/* { dg-require-effective-target sync_int_long } */
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/* { dg-options "-O2 -finline-functions" } */
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/* { dg-options "-O2 -finline-functions" } */
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/* { dg-options "-march=i486" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
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/* { dg-options "-march=i486" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
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/* { dg-options "-mcpu=v9" { target sparc*-*-* } } */
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/* { dg-options "-mcpu=v9" { target sparc*-*-* } } */
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/* Test inlining __sync_bool_compare_and_swap. */
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/* Test inlining __sync_bool_compare_and_swap. */
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#include <stdbool.h>
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#include <stdbool.h>
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static bool
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static bool
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compare_and_swap(long *addr, long old, long new_val)
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compare_and_swap(long *addr, long old, long new_val)
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{
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{
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return __sync_bool_compare_and_swap(addr, old, new_val);
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return __sync_bool_compare_and_swap(addr, old, new_val);
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}
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}
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void
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void
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foo (long *address)
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foo (long *address)
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{
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{
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long he_address = *address & ~1;
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long he_address = *address & ~1;
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while (!compare_and_swap(address, he_address, he_address | 1))
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while (!compare_and_swap(address, he_address, he_address | 1))
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he_address = *address & ~1;
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he_address = *address & ~1;
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}
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}
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