Pushed to r16-3247 ... r16-3264.
Sorry it took so long to merge.
Thanks!
在 2025/3/1 上午11:46, Xi Ruoyao 写道:
The entire patch bootstrapped and regtested on loongarch64-linux-gnu
with -march=la664, and I've also tried several simple 16-byte atomic
operation tests locally.
OK for trunk? Or maybe the clean up is OK but the 16-byte atomic
implementation still needs to be confirmed by the hardware team?
Xi Ruoyao (17):
LoongArch: (NFC) Remove atomic_optab and use amop instead
LoongArch: (NFC) Remove amo and use size instead
LoongArch: Don't use "+" for atomic_{load,store} "m" constraint
LoongArch: Allow using bstrins for masking the address in
atomic_test_and_set
LoongArch: Don't emit overly-restrictive barrier for LL-SC loops
LoongArch: Remove unneeded "b 3f" instruction after LL-SC loops
LoongArch: Remove unneeded "andi offset,addr,3" instruction in
atomic_test_and_set
LoongArch: Implement subword atomic_fetch_{and,or,xor} with am*.w
instructions
LoongArch: Don't expand atomic_fetch_sub_{hi,qi} to LL-SC loop if
-mlam-bh
LoongArch: Implement atomic_fetch_nand<GPR:mode>
LoongArch: Implement 16-byte atomic load with LSX
LoongArch: Implement 16-byte atomic store with LSX
LoongArch: Add -m[no-]scq option
LoongArch: Implement 16-byte atomic store with sc.q
LoongArch: Implement 16-byte CAS with sc.q
LoongArch: Implement 16-byte atomic exchange with sc.q
LoongArch: Implement 16-byte atomic add, sub, and, or, xor, and nand
with sc.q
gcc/config/loongarch/genopts/isa-evolution.in | 1 +
gcc/config/loongarch/loongarch-def.cc | 4 +-
gcc/config/loongarch/loongarch-evolution.cc | 4 +
gcc/config/loongarch/loongarch-evolution.h | 8 +-
gcc/config/loongarch/loongarch-str.h | 1 +
gcc/config/loongarch/loongarch.cc | 30 +-
gcc/config/loongarch/loongarch.opt | 4 +
gcc/config/loongarch/sync.md | 641 ++++++++++++------
gcc/doc/invoke.texi | 11 +-
9 files changed, 494 insertions(+), 210 deletions(-)
