fix tsizeof3 for aarch64 (#13169)

testament/specs.nim

@@ -234,6 +234,8 @@ proc parseSpec*(filename: string): TSpec =
             result.err = reDisabled
         of "freebsd":
           when defined(freebsd): result.err = reDisabled
+        of "arm64":
+          when defined(arm64): result.err = reDisabled
         else:
           result.parseErrors.addLine "cannot interpret as a bool: ", e.value
       of "cmd":

tests/misc/tsizeof3.nim

@@ -18,26 +18,6 @@ proc toByteArrayBE*[T: SomeInteger](num: T): ByteArrayBE[sizeof(T)]=
 let a = 12345.toByteArrayBE
 echo a[^2 .. ^1] # to make it work on both 32-bit and 64-bit
 
-
-#-----------------------------------------------------------------
-
-# bug #11792
-type
-  m256d {.importc: "__m256d", header: "immintrin.h".} = object
-
-  MyKind = enum
-    k1, k2, k3
-
-  MyTypeObj = object
-    kind: MyKind
-    x: int
-    amount: UncheckedArray[m256d]
-
-
-# The sizeof(MyTypeObj) is not equal to (sizeof(int) + sizeof(MyKind)) due to
-# alignment requirement of m256d, make sure Nim understands that
-doAssert(sizeof(MyTypeObj) > sizeof(int) + sizeof(MyKind))
-
 #---------------------------------------------------------------------
 
 type

tests/misc/tsizeof4.nim

@@ -0,0 +1,20 @@
+discard """
+disabled: "arm64"
+"""
+
+# bug #11792
+type
+  m256d {.importc: "__m256d", header: "immintrin.h".} = object
+
+  MyKind = enum
+    k1, k2, k3
+
+  MyTypeObj = object
+    kind: MyKind
+    x: int
+    amount: UncheckedArray[m256d]
+
+
+# The sizeof(MyTypeObj) is not equal to (sizeof(int) + sizeof(MyKind)) due to
+# alignment requirement of m256d, make sure Nim understands that
+doAssert(sizeof(MyTypeObj) > sizeof(int) + sizeof(MyKind))