diff options
Diffstat (limited to 'third_party/dav1d/meson.build')
| -rw-r--r-- | third_party/dav1d/meson.build | 77 |
1 files changed, 76 insertions, 1 deletions
diff --git a/third_party/dav1d/meson.build b/third_party/dav1d/meson.build index 6e49852103..e371415d53 100644 --- a/third_party/dav1d/meson.build +++ b/third_party/dav1d/meson.build @@ -23,7 +23,7 @@ # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. project('dav1d', ['c'], - version: '1.4.0', + version: '1.4.1', default_options: ['c_std=c99', 'warning_level=2', 'buildtype=release', @@ -309,6 +309,10 @@ if (host_machine.system() in ['darwin', 'ios', 'tvos'] and cc.get_id() == 'clang optional_arguments += '-fno-stack-check' endif +if (host_machine.cpu_family() == 'aarch64' or host_machine.cpu_family().startswith('arm')) + optional_arguments += '-fno-align-functions' +endif + add_project_arguments(cc.get_supported_arguments(optional_arguments), language : 'c') add_project_link_arguments(cc.get_supported_link_arguments(optional_link_arguments), language : 'c') @@ -365,6 +369,66 @@ if (is_asm_enabled and if cc.compiles(check_pic_code) cdata.set('PIC', '3') endif + + if host_machine.cpu_family() == 'aarch64' + have_as_arch = cc.compiles('''__asm__ (".arch armv8-a");''') + cdata.set10('HAVE_AS_ARCH_DIRECTIVE', have_as_arch) + as_arch_str = '' + if have_as_arch + as_arch_level = 'armv8-a' + # Check what .arch levels are supported. In principle, we only + # want to detect up to armv8.2-a here (binutils requires that + # in order to enable i8mm). However, older Clang versions + # (before Clang 17, and Xcode versions up to and including 15.0) + # didn't support controlling dotprod/i8mm extensions via + # .arch_extension, therefore try to enable a high enough .arch + # level as well, to implicitly make them available via that. + foreach arch : ['armv8.2-a', 'armv8.4-a', 'armv8.6-a'] + if cc.compiles('__asm__ (".arch ' + arch + '\\n");') + as_arch_level = arch + endif + endforeach + # Clang versions before 17 also had a bug + # (https://github.com/llvm/llvm-project/issues/32220) + # causing a plain ".arch <level>" to not have any effect unless it + # had an extra "+<feature>" included - but it was activated on the + # next ".arch_extension" directive instead. Check if we can include + # "+crc" as dummy feature to make the .arch directive behave as + # expected and take effect right away. + if cc.compiles('__asm__ (".arch ' + as_arch_level + '+crc\\n");') + as_arch_level = as_arch_level + '+crc' + endif + cdata.set('AS_ARCH_LEVEL', as_arch_level) + as_arch_str = '".arch ' + as_arch_level + '\\n"' + endif + extensions = { + 'dotprod': 'udot v0.4s, v0.16b, v0.16b', + 'i8mm': 'usdot v0.4s, v0.16b, v0.16b', + 'sve': 'whilelt p0.s, x0, x1', + 'sve2': 'sqrdmulh z0.s, z0.s, z0.s', + } + foreach name, instr : extensions + # Test for support for the various extensions. First test if + # the assembler supports the .arch_extension directive for + # enabling/disabling the extension, then separately check whether + # the instructions themselves are supported. Even if .arch_extension + # isn't supported, we may be able to assemble the instructions + # if the .arch level includes support for them. + code = '__asm__ (' + as_arch_str + code += '".arch_extension ' + name + '\\n"' + code += ');' + supports_archext = cc.compiles(code) + cdata.set10('HAVE_AS_ARCHEXT_' + name.to_upper() + '_DIRECTIVE', supports_archext) + code = '__asm__ (' + as_arch_str + if supports_archext + code += '".arch_extension ' + name + '\\n"' + endif + code += '"' + instr + '\\n"' + code += ');' + supports_instr = cc.compiles(code, name: name.to_upper()) + cdata.set10('HAVE_' + name.to_upper(), supports_instr) + endforeach + endif endif cdata.set10('ARCH_X86', host_machine.cpu_family().startswith('x86')) @@ -477,6 +541,17 @@ if (is_asm_enabled and ]) endif +if is_asm_enabled and host_machine.cpu_family().startswith('riscv') + as_option_code = '''__asm__ ( +".option arch, +v\n" +"vsetivli zero, 0, e8, m1, ta, ma" +); +''' + if not cc.compiles(as_option_code, name : 'RISC-V Vector') + error('Compiler doesn\'t support \'.option arch\' asm directive. Update to binutils>=2.38 or clang>=17 or use \'-Denable_asm=false\'.') + endif +endif + # Generate config.h config_h_target = configure_file(output: 'config.h', configuration: cdata) |