Some names include "sync" and some don't?
Well, I was going to blame Aldy :-) but then I went to look at this, and
thats the same way *all* the other __sync instructions seem to be.
ie:
builtins.c:expand_builtin_lock_test_and_set (enum machine_mode mode,
tree exp,
builtins.c: case BUILT_IN_LOCK_TEST_AND_SET_1:
builtins.c: case BUILT_IN_LOCK_TEST_AND_SET_2:
builtins.c: case BUILT_IN_LOCK_TEST_AND_SET_4:
whereas everything else is 'sync_lock_test_and_set'..
So i guess it falls to prior art... I assume Aldy just cut-and-pasted
for his new routine and just changed the names in the same format.
Correct, this was the way all the other sync builtins were implemented.
I found it odd as well, but wanted to keep my changes to a minimum.
