On 9/21/19 7:11 AM, Richard Henderson wrote:
As diagnosed in the PR. * config/aarch64/lse.S (LDNM): Ensure STXR output does not overlap the inputs.
Looks good to me. Perhaps even obvious. Thanks, Kyrill
--- libgcc/config/aarch64/lse.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libgcc/config/aarch64/lse.S b/libgcc/config/aarch64/lse.S index a5f6673596c..c7979382ad7 100644 --- a/libgcc/config/aarch64/lse.S +++ b/libgcc/config/aarch64/lse.S @@ -227,8 +227,8 @@ STARTFN NAME(LDNM) 8: mov s(tmp0), s(0) 0: LDXR s(0), [x1] OP s(tmp1), s(0), s(tmp0) - STXR w(tmp1), s(tmp1), [x1] - cbnz w(tmp1), 0b + STXR w(tmp2), s(tmp1), [x1] + cbnz w(tmp2), 0b ret ENDFN NAME(LDNM) -- 2.17.1
