tests2: skip ARM64 tests on non-ARM64 architectures

tests/tests2/138_arm64_encoding.expect

@@ -0,0 +1,50 @@
+shift-imm:
+1
+8000
+80000000
+1
+8000
+ffffffff
+fffffff0
+1
+100000000
+8000000000000000
+1
+ffffffffffffffff
+fffffffffffffff0
+ldr-str:
+1122334455667788
+99aabbccddeeff00
+55667788
+f1e2d3c4b5a6978
+1122334455667788 99aabbccddeeff00
+ldp-stp:
+aaabbbbccccdddd 1111222233334444
+cbz-cbnz:
+zero
+nonzero
+zero
+nonzero
+csel:
+10
+10
+0
+1
+sysregs:
+0
+0
+ok
+nop:
+ok
+barriers:
+ok
+mov-reg:
+42
+-1
+large-struct:
+10
+10 20 30 40
+boundary-structs:
+123456789012345678
+123456789012345678901234
+12345678901234567890123456789012

tests/tests2/139_arm64_errors.expect

@@ -0,0 +1,21 @@
+[test_unknown_instruction]
+139_arm64_errors.c:10: error: ARM64 instruction 'fubar' not implemented
+
+[test_shift_imm_range_32]
+139_arm64_errors.c:18: error: shift immediate out of range
+
+[test_shift_imm_range_64]
+139_arm64_errors.c:26: error: shift immediate out of range
+
+[test_invalid_sysreg]
+139_arm64_errors.c:34: error: unsupported system register
+
+[test_invalid_barrier_option]
+139_arm64_errors.c:42: error: invalid operand 'xyz'
+
+[test_extended_inline_asm]
+139_arm64_errors.c:51: error: ARM64 extended inline asm is not implemented
+
+[test_extended_inline_clobber]
+139_arm64_errors.c:59: error: ARM64 extended inline asm is not implemented
+

tests/tests2/Makefile

@@ -54,6 +54,10 @@ ifneq (,$(filter arm% riscv%,$(ARCH)))
  SKIP += 99_fastcall.test
  SKIP += 127_asm_goto.test
 endif
+ifeq (,$(filter arm64 aarch64,$(ARCH)))
+ SKIP += 138_arm64_encoding.test
+ SKIP += 139_arm64_errors.test
+endif
 ifneq (,$(findstring win32,$(CROSS_TARGET)))
  SKIP += 106_versym.test
  SKIP += 114_bound_signal.test