add loongarch support

docs/markdown/Reference-tables.md

@@ -89,6 +89,7 @@ set in the cross file.
 | dspic               | 16 bit Microchip dsPIC   |
 | e2k                 | MCST Elbrus processor    |
 | ia64                | Itanium processor        |
+| loongarch64         | 64 bit Loongson processor|
 | m68k                | Motorola 68000 processor |
 | microblaze          | MicroBlaze processor     |
 | mips                | 32 bit MIPS processor    |

mesonbuild/dependencies/cuda.py

@@ -219,7 +219,7 @@ class CudaDependency(ExternalDependency):
                 raise DependencyException(msg.format(arch, 'Windows'))
             return os.path.join('lib', libdirs[arch])
         elif machine.is_linux():
-            libdirs = {'x86_64': 'lib64', 'ppc64': 'lib', 'aarch64': 'lib64'}
+            libdirs = {'x86_64': 'lib64', 'ppc64': 'lib', 'aarch64': 'lib64', 'loongarch64': 'lib64'}
             if arch not in libdirs:
                 raise DependencyException(msg.format(arch, 'Linux'))
             return libdirs[arch]

mesonbuild/envconfig.py

@@ -45,6 +45,7 @@ known_cpu_families = (
     'dspic',
     'e2k',
     'ia64',
+    'loongarch64',
     'm68k',
     'microblaze',
     'mips',
@@ -74,6 +75,7 @@ CPU_FAMILIES_64_BIT = [
     'aarch64',
     'alpha',
     'ia64',
+    'loongarch64',
     'mips64',
     'ppc64',
     'riscv64',