[DLPACK] Upgrade to the latest version (#150)

dlpack @ a6e09b58

-Subproject commit 9f433c5ecfdd47184339cdd2b99706d24fae3aa1
+Subproject commit a6e09b58dc00ee0065f5b7879800e646fbb01d1e

python/tvm/_ffi/_cython/base.pxi

@@ -26,8 +26,8 @@ cdef extern from "tvm/runtime/c_runtime_api.h":
         uint16_t lanes
 
     ctypedef struct DLContext:
-        int device_id
         int device_type
+        int device_id
 
     ctypedef struct DLTensor:
         void* data

python/tvm/_ffi/runtime_ctypes.py

@@ -68,8 +68,8 @@ RPC_SESS_MASK = 128
 
 class TVMContext(ctypes.Structure):
     """TVM context strucure."""
-    _fields_ = [("device_id", ctypes.c_int),
-                ("device_type", ctypes.c_int)]
+    _fields_ = [("device_type", ctypes.c_int),
+                ("device_id", ctypes.c_int)]
     MASK2STR = {
         1 : 'cpu',
         2 : 'gpu',
@@ -88,8 +88,8 @@ class TVMContext(ctypes.Structure):
     }
     def __init__(self, device_type, device_id):
         super(TVMContext, self).__init__()
-        self.device_id = device_id
         self.device_type = device_type
+        self.device_id = device_id
 
     @property
     def exist(self):

src/codegen/llvm/codegen_llvm.cc

@@ -361,11 +361,11 @@ llvm::Value* CodeGenLLVM::CreateStructRefPtr(
     }
     case intrinsic::kArrDeviceId: {
       return builder_->CreateInBoundsGEP(
-          buf, {index, ConstInt32(1), ConstInt32(0)});
+          buf, {index, ConstInt32(1), ConstInt32(1)});
     }
     case intrinsic::kArrDeviceType: {
       return builder_->CreateInBoundsGEP(
-          buf, {index, ConstInt32(1), ConstInt32(1)});
+          buf, {index, ConstInt32(1), ConstInt32(0)});
     }
     case intrinsic::kTVMValueContent: {
       CHECK_EQ(t.lanes(), 1);