atomic_* test, fails to link on i386
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	mmokhi
	Oct 14 2018, 2:04 PM

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atomic_* test, fails to link on i386
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	#include <stdint.h>
	#include <stdatomic.h>


	struct test {
	volatile uint16_t a;

	volatile uint64_t b;

	volatile uint64_t c;
	};


	volatile struct test test = {
	.a = 0,
	.b = 0,
	.c = 1
	};

	void compare_and_add(uint64_t dt, uint64_t argb) {
	uint64_t oldb = test.b;
	while(dt > oldb)
	__atomic_compare_exchange(&test.b, &oldb, &dt, 1, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);

	__atomic_fetch_add(&test.b, 1, __ATOMIC_SEQ_CST);
	__atomic_fetch_add(&test.b, dt, __ATOMIC_SEQ_CST);
	__atomic_fetch_add(&test.b, argb, __ATOMIC_SEQ_CST);
	}

	void compare_and_add2(uint64_t dt, uint64_t argb) {
	volatile struct test test2 = {0, 0, 1};

	__atomic_fetch_add(&test2.b, 1, __ATOMIC_SEQ_CST);
	__atomic_fetch_add(&test2.b, dt, __ATOMIC_SEQ_CST);
	__atomic_fetch_add(&test2.b, argb, __ATOMIC_SEQ_CST);
	}


	int main (int argc, char **argv)
	{
	uint64_t ull1 = 1, ull2 = 0, ull3 = 2;
	__atomic_load_n(&ull1, __ATOMIC_SEQ_CST);
	__atomic_compare_exchange(&ull1, &ull2, &ull3, 1, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
	__atomic_fetch_add(&ull1, 1, __ATOMIC_SEQ_CST);
	__atomic_fetch_sub(&test.b, 1, __ATOMIC_SEQ_CST);
	__atomic_or_fetch(&ull1, ull2, __ATOMIC_SEQ_CST);
	__atomic_and_fetch(&ull1, ull2, __ATOMIC_SEQ_CST);
	return 0;
	}