Revert "Revert "Fast ART x86 interpreter""

This reverts commit 2d093a1213cc2f85b5e5e02782332657c479eb94.

Disable x86 mterp compilation on Mac host builds (but keep enabled
for all target builds).

Change-Id: Ie355279f166d2964a786646ee53f065b7e0f5ede
diff --git a/runtime/interpreter/mterp/x86/op_move.S b/runtime/interpreter/mterp/x86/op_move.S
new file mode 100644
index 0000000..0a531be
--- /dev/null
+++ b/runtime/interpreter/mterp/x86/op_move.S
@@ -0,0 +1,13 @@
+%default { "is_object":"0" }
+    /* for move, move-object, long-to-int */
+    /* op vA, vB */
+    movzbl  rINSTbl, %eax                   # eax <- BA
+    andb    $$0xf, %al                      # eax <- A
+    shrl    $$4, rINST                      # rINST <- B
+    GET_VREG rINST rINST
+    .if $is_object
+    SET_VREG_OBJECT rINST %eax              # fp[A] <- fp[B]
+    .else
+    SET_VREG rINST %eax                     # fp[A] <- fp[B]
+    .endif
+    ADVANCE_PC_FETCH_AND_GOTO_NEXT 1