On Wed, Mar 19, 2025 at 11:16:09AM +0100, David Marchand wrote:
> On Tue, Mar 18, 2025 at 6:35 PM Bruce Richardson
> <bruce.richard...@intel.com> wrote:
> >
> > remove custom logic for building AVX2 and AVX-512 files.
> >
> > Signed-off-by: Bruce Richardson <bruce.richard...@intel.com>
> > ---
> > lib/acl/meson.build | 54 ++++-----------------------------------------
> > 1 file changed, 4 insertions(+), 50 deletions(-)
> >
> > diff --git a/lib/acl/meson.build b/lib/acl/meson.build
> > index a80c172812..87e9f25f8e 100644
> > --- a/lib/acl/meson.build
> > +++ b/lib/acl/meson.build
> > @@ -15,57 +15,11 @@ headers = files('rte_acl.h', 'rte_acl_osdep.h')
> >
> > if dpdk_conf.has('RTE_ARCH_X86')
> > sources += files('acl_run_sse.c')
> > -
> > - avx2_tmplib = static_library('avx2_tmp',
> > - 'acl_run_avx2.c',
> > - dependencies: static_rte_eal,
> > - c_args: [cflags, cc_avx2_flags])
> > - objs += avx2_tmplib.extract_objects('acl_run_avx2.c')
> > -
> > - # compile AVX512 version if:
> > - # we are building 64-bit binary AND binutils can generate proper code
> > -
> > - if dpdk_conf.has('RTE_ARCH_X86_64') and binutils_ok
> > -
> > - # compile AVX512 version if either:
> > - # a. we have AVX512 supported in minimum instruction set
> > - # baseline
> > - # b. it's not minimum instruction set, but supported by
> > - # compiler
> > - #
> > - # in former case, just add avx512 C file to files list
> > - # in latter case, compile c file to static lib, using correct
> > - # compiler flags, and then have the .o file from static lib
> > - # linked into main lib.
> > -
> > - # check if all required flags already enabled (variant a).
> > - acl_avx512_flags = ['__AVX512F__', '__AVX512VL__',
> > - '__AVX512CD__', '__AVX512BW__']
>
> Not sure it is an issue.. CD is not part of common cc_avx512_flags.
>
It is since bce754b5d942 ("config/x86: add more flags in common AVX512 flags
set")
See: https://github.com/DPDK/dpdk/blob/main/config/x86/meson.build#L68
/Bruce
