Commit 84486f64 authored by Dylan Baker's avatar Dylan Baker
Browse files

meson: Enable SSE4.1 optimizations



This patch checks for an and then enables sse4.1 optimizations if the
host machine will be x86/x86_64.

v2: - Don't compile code, it's unnecessary since we require a compiler
      which always has SSE4.1 (Matt)
v3: - x64 -> x86_64 (Matt)
Signed-off-by: default avatarDylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: default avatarEric Engestrom <eric.engestrom@imgtec.com>
parent 6a78416d
......@@ -502,7 +502,20 @@ foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
endif
endforeach
# TODO: SSE41 (which is only required for core mesa)
if host_machine.cpu_family().startswith('x86')
pre_args += '-DHAVE_SSE41'
with_sse41 = true
sse41_args = ['-msse4.1']
# GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
# that's not guaranteed
if host_machine.cpu_family() == 'x86'
sse41_args += '-mstackrealign'
endif
else
with_sse41 = false
sse41_args = []
endif
# Check for GCC style atomics
if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
......
......@@ -592,9 +592,6 @@ files_libmesa_gallium = files(
'state_tracker/st_vdpau.h',
)
# TODO: sse41
libmesa_sse41 = []
matypes_h = []
if with_asm_arch == 'x86' or with_asm_arch == 'x86_64'
gen_matypes = executable(
......@@ -692,6 +689,17 @@ files_libmesa_common += [
sha1_h,
]
if with_sse41
libmesa_sse41 = static_library(
'mesa_sse41',
files('main/streaming-load-memcpy.c', 'main/sse_minmax.c'),
c_args : [c_vis_args, c_msvc_compat_args, sse41_args],
include_directories : inc_common,
)
else
libmesa_sse41 = []
endif
libmesa_classic = static_library(
'mesa_classic',
[files_libmesa_common, files_libmesa_classic],
......
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