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97541
2008 Feb 15
3
[LLVMdev] llvm.atomic.barrier implementation
On Feb 15, 2008, at 2:29 PM, Andrew Lenharth wrote:
> On 2/15/08, Andrew Lenharth <andrewl at lenharth.org> wrote:
>> I'll take a hack at the front end support for
>> __sync_synchronize after this goes in.
>
> This is the gcc side of the patch.
GCC 4.2 compiles this to a no-op on x86:
void foo() {
__sync_synchronize();
}
Are you seeing different behavior?