arm-memoryorderings

# seqcst store/load:

data memory barrier
store/load
data memory barrier


# acquire load:

data memory barrier
load


# release store:

store
data memory barrier



# relaxed store/load:

store/load

Acquire before release

core 1 view of memory	core 2 view of memory	global view of memory	core 1	core 2
1	1	1	dmb	...
1	2	1	load	store 2
1	2	2	// 1 is loaded	dmb
1	2	2

Release and acquire

core 1 view of memory	core 2 view of memory	global view of memory	core 1	core 2
2	1	1	store 2	...
2	2	2	dmb	dmb
2	2	2		load
2	2	2		// 2 is loaded

Acquire at the same time as Release

core 1 view of memory	core 2 view of memory	global view of memory	core 1	core 2
2	1	1	store 2	dmb
2	1	2	dmb	load
2	1	2		// 1 is loaded