gonglingqin e9a4b8e397 [LoongArch] Optimize the atomic store with amswap_db.[w/d]
When AtomicOrdering is release or stronger, use
    amswap_db.[w/d] $zero, $a1, $a0
instead of
    dbar 0
    st.[w/d] $a0, $a1, 0

Thanks to @xry111 for the suggestion: https://reviews.llvm.org/D128901#3626635

Differential Revision: https://reviews.llvm.org/D129838
2022-08-23 17:11:57 +08:00
..
2022-08-11 10:02:45 +08:00
2022-08-11 10:02:45 +08:00