[Codegen] Use "target.build.$TARGET_KIND" for all codegen functions. (#8071)

* [Codegen] Use "target.build.$TARGET_KIND" for all codegen functions.

- Removed special case for "micro_dev" target.  Instead, register
  BuildCHost as both "target.build.c" and "target.build.micro_dev".

- Renamed "target.build.build.aocl_sw_emu" to
  "target.build.aocl_sw_emu".  Appears to be a typo introduced in
  #841725cc585

* [micro_dev] Removed references to non-existent micro_dev

device_api.micro_dev was removed in
745e542, but several references still
remained.

Co-authored-by: Eric Lunderberg <elunderberg@octoml.ai>

Author: Lunderberg

include/tvm/runtime/device_api.h

@@ -257,8 +257,6 @@ inline const char* DeviceName(int type) {
       return "ext_dev";
     case kDLWebGPU:
       return "webgpu";
-    case kDLMicroDev:
-      return "micro_dev";
     case kDLHexagon:
       return "hexagon";
     default:

python/tvm/__init__.py

@@ -31,7 +31,7 @@
 # tvm.runtime
 from .runtime.object import Object
 from .runtime.ndarray import device, cpu, cuda, gpu, opencl, cl, vulkan, metal, mtl
-from .runtime.ndarray import vpi, rocm, ext_dev, micro_dev, hexagon
+from .runtime.ndarray import vpi, rocm, ext_dev, hexagon
 from .runtime import ndarray as nd
 
 # tvm.error

python/tvm/_ffi/runtime_ctypes.py

@@ -173,7 +173,6 @@ class Device(ctypes.Structure):
         9: "vpi",
         10: "rocm",
         12: "ext_dev",
-        13: "micro_dev",
         14: "hexagon",
         15: "webgpu",
     }
@@ -194,7 +193,6 @@ class Device(ctypes.Structure):
         "vpi": 9,
         "rocm": 10,
         "ext_dev": 12,
-        "micro_dev": 13,
         "hexagon": 14,
         "webgpu": 15,
     }

python/tvm/autotvm/measure/measure_methods.py

@@ -276,8 +276,6 @@ def get_build_kwargs(self):
 
             if "cuda" in self.task.target.keys:
                 kwargs["cuda_arch"] = "sm_" + "".join(dev.compute_version.split("."))
-        if self.task.target.device_name == "micro_dev":
-            kwargs.setdefault("build_option", {})["tir.disable_vectorize"] = True
 
         return kwargs
 

python/tvm/runtime/__init__.py

@@ -27,7 +27,7 @@
 # function exposures
 from .object_generic import convert_to_object, convert, const
 from .ndarray import device, cpu, cuda, gpu, opencl, cl, vulkan, metal, mtl
-from .ndarray import vpi, rocm, ext_dev, micro_dev
+from .ndarray import vpi, rocm, ext_dev
 from .module import load_module, enabled, system_lib
 from .container import String
 from .params import save_param_dict, load_param_dict

python/tvm/runtime/module.py

@@ -470,9 +470,6 @@ def load_module(path, fmt=""):
         files = [tar_temp.relpath(x) for x in tar_temp.listdir()]
         _cc.create_shared(path + ".so", files, cc=cc)
         path += ".so"
-    # TODO(weberlo): we should probably use a more distinctive suffix for microTVM object files
-    elif path.endswith(".obj"):
-        fmt = "micro_dev"
     # Redirect to the load API
     return _ffi_api.ModuleLoadFromFile(path, fmt)
 

python/tvm/runtime/ndarray.py

@@ -268,13 +268,10 @@ def device(dev_type, dev_id=0):
       assert tvm.device("cuda", 0) == tvm.cuda(0)
     """
     if isinstance(dev_type, string_types):
-        if "-device=micro_dev" in dev_type:
-            dev_type = Device.STR2MASK["micro_dev"]
-        else:
-            dev_type = dev_type.split()[0]
-            if dev_type not in Device.STR2MASK:
-                raise ValueError("Unknown device type %s" % dev_type)
-            dev_type = Device.STR2MASK[dev_type]
+        dev_type = dev_type.split()[0]
+        if dev_type not in Device.STR2MASK:
+            raise ValueError("Unknown device type %s" % dev_type)
+        dev_type = Device.STR2MASK[dev_type]
     return Device(dev_type, dev_id)
 
 
@@ -510,22 +507,6 @@ def ext_dev(dev_id=0):
     return Device(12, dev_id)
 
 
-def micro_dev(dev_id=0):
-    """Construct a micro device
-
-    Parameters
-    ----------
-    dev_id : int, optional
-        The integer device id
-
-    Returns
-    -------
-    dev : Device
-        The created device
-    """
-    return Device(13, dev_id)
-
-
 def hexagon(dev_id=0):
     """Construct a Hexagon device
 

src/runtime/module.cc

@@ -139,8 +139,6 @@ bool RuntimeEnabled(const std::string& target) {
     f_name = "target.build.stackvm";
   } else if (target == "rpc") {
     f_name = "device_api.rpc";
-  } else if (target == "micro_dev") {
-    f_name = "device_api.micro_dev";
   } else if (target == "hexagon") {
     f_name = "device_api.hexagon";
   } else if (target.length() >= 5 && target.substr(0, 5) == "nvptx") {

src/target/codegen.cc

@@ -47,13 +47,9 @@ runtime::Module Build(IRModule mod, Target target) {
           .value()) {
     mod = tir::transform::SkipAssert()(mod);
   }
-  std::string build_f_name;
-  if (target->kind->name == "micro_dev") {
-    build_f_name = "target.build.c";
-  } else {
-    build_f_name = "target.build." + target->kind->name;
-  }
+
   // the build function.
+  std::string build_f_name = "target.build." + target->kind->name;
   const PackedFunc* bf = runtime::Registry::Get(build_f_name);
   ICHECK(bf != nullptr) << build_f_name << " is not enabled";
   return (*bf)(mod, target);

src/target/source/codegen_aocl.cc

@@ -84,7 +84,7 @@ TVM_REGISTER_GLOBAL("target.build.aocl")
       return BuildAOCL(mod, target, false);
     });
 
-TVM_REGISTER_GLOBAL("target.build.build.aocl_sw_emu")
+TVM_REGISTER_GLOBAL("target.build.aocl_sw_emu")
     .set_body_typed([](IRModule mod, Target target) -> runtime::Module {
       return BuildAOCL(mod, target, true);
     });