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Subject: [Bug target/55966] __atomic_fetch_* generate wrong code for HLE
Date: Mon, 14 Jan 2013 21:25:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55966

--- Comment #5 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-14 21:25:13 UTC ---
Following testcase will expand to a cmpxchg loop:

int hle_and (int *p, int v)
{
  return __atomic_fetch_and_4 (p, v, __ATOMIC_ACQUIRE | __ATOMIC_HLE_ACQUIRE);
}