diff options
Diffstat (limited to 'meson.build')
| -rw-r--r-- | meson.build | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/meson.build b/meson.build index 0a11efc97a1..2acb2040037 100644 --- a/meson.build +++ b/meson.build @@ -2065,6 +2065,30 @@ int main(void) cdata.set('USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK', 1) have_optimized_crc = true endif + +elif host_cpu == 'loongarch64' + + prog = ''' +int main(void) +{ + unsigned int crc = 0; + crc = __builtin_loongarch_crcc_w_b_w(0, crc); + crc = __builtin_loongarch_crcc_w_h_w(0, crc); + crc = __builtin_loongarch_crcc_w_w_w(0, crc); + crc = __builtin_loongarch_crcc_w_d_w(0, crc); + + /* return computed value, to prevent the above being optimized away */ + return crc == 0; +} +''' + + if cc.links(prog, name: '__builtin_loongarch_crcc_w_b_w, __builtin_loongarch_crcc_w_h_w, __builtin_loongarch_crcc_w_w_w, and __builtin_loongarch_crcc_w_d_w', + args: test_c_args) + # Use LoongArch CRC instruction unconditionally + cdata.set('USE_LOONGARCH_CRC32C', 1) + have_optimized_crc = true + endif + endif if not have_optimized_crc |