Vendor in targetconfig, event, funcdesc, descriptors for CUDA-specific changes (#456)

This PR vendors in `targetconfig`, `event`, `funcdesc`, `descriptors`
from `numba.core` for CUDA-Specific customization.

Author: VijayKandiah

numba_cuda/numba/cuda/compiler.py

@@ -9,20 +9,18 @@
 from numba.core import ir as numba_ir
 from numba.core import (
     types,
-    funcdesc,
     config,
     bytecode,
 )
 from numba.cuda.core.options import ParallelOptions
 from numba.core.compiler_lock import global_compiler_lock
 from numba.core.errors import NumbaWarning, NumbaInvalidConfigWarning
 from numba.cuda.core.interpreter import Interpreter
-from numba.cuda.core import inline_closurecall
 
 from numba.cuda import cgutils, typing, lowering, nvvmutils, utils
 from numba.cuda.api import get_current_device
 from numba.cuda.codegen import ExternalCodeLibrary
-from numba.cuda.core import sigutils, postproc
+from numba.cuda.core import inline_closurecall, sigutils, postproc, funcdesc
 from numba.cuda.cudadrv import nvvm, nvrtc
 from numba.cuda.descriptor import cuda_target
 from numba.cuda.flags import CUDAFlags

numba_cuda/numba/cuda/core/compiler.py

@@ -8,7 +8,7 @@
 from numba.core.errors import CompilerError
 
 from numba.cuda.core.untyped_passes import ExtractByteCode, FixupArgs
-from numba.core.targetconfig import ConfigStack
+from numba.cuda.core.targetconfig import ConfigStack
 
 
 class _CompileStatus(object):

numba_cuda/numba/cuda/core/compiler_machinery.py

@@ -14,7 +14,7 @@
 from numba.cuda.core.tracing import event
 from numba.cuda.core.postproc import PostProcessor
 from numba.cuda.core.ir_utils import enforce_no_dels, legalize_single_scope
-import numba.core.event as ev
+import numba.cuda.core.event as ev
 
 import numba.cuda.core.compiler_machinery as nccm
 
@@ -330,7 +330,7 @@ def debug_print(pass_name, print_condition, printable_condition):
             return_type=str(internal_state.return_type),
         )
         errctx = errors.new_error_context(f"Pass {pss.name()}")
-        with ev.trigger_event("numba:run_pass", data=ev_details), errctx:
+        with ev.trigger_event("numba-cuda:run_pass", data=ev_details), errctx:
             with SimpleTimer() as init_time:
                 mutated |= check(pss.run_initialization, internal_state)
             with SimpleTimer() as pass_time: