v3: https://patchew.org/QEMU/20240206204809.9859-1-amona...@ispras.ru/
Changes for v4:
- Keep separate >= 256 entry point, but only keep constant length
check inline. This allows the indirect function call to be hidden
and optimized away when the pointer is constant.
- Split out a >= 256 integer routine.
- Simplify acceleration selection for testing.
- Add function pointer typedef.
- Implement new aarch64 accelerations.
r~
Alexander Monakov (5):
util/bufferiszero: Remove SSE4.1 variant
util/bufferiszero: Remove AVX512 variant
util/bufferiszero: Reorganize for early test for acceleration
util/bufferiszero: Remove useless prefetches
util/bufferiszero: Optimize SSE2 and AVX2 variants
Richard Henderson (5):
util/bufferiszero: Improve scalar variant
util/bufferiszero: Introduce biz_accel_fn typedef
util/bufferiszero: Simplify test_buffer_is_zero_next_accel
util/bufferiszero: Add simd acceleration for aarch64
util/bufferiszero: Add sve acceleration for aarch64
host/include/aarch64/host/cpuinfo.h | 1 +
include/qemu/cutils.h | 15 +-
util/bufferiszero.c | 500 ++++++++++++++++------------
util/cpuinfo-aarch64.c | 1 +
meson.build | 13 +
5 files changed, 323 insertions(+), 207 deletions(-)
--
2.34.1
