Merge pull request #1106 from wenju-he/fix-native_cpu-build-warnings

[NATIVECPU] Fix build errors when -Werror=on

Author: kbenzie

source/adapters/native_cpu/enqueue.cpp

@@ -144,12 +144,11 @@ static inline ur_result_t enqueueMemBufferReadWriteRect_impl(
         size_t host_origin = (d + HostOffset.z) * HostSlicePitch +
                              (h + HostOffset.y) * HostRowPitch + w +
                              HostOffset.x;
-        int8_t &host_mem = ur_cast<int8_t *>(DstMem)[host_origin];
         int8_t &buff_mem = ur_cast<int8_t *>(Buff->_mem)[buff_orign];
-        if (IsRead)
-          host_mem = buff_mem;
+        if constexpr (IsRead)
+          ur_cast<int8_t *>(DstMem)[host_origin] = buff_mem;
         else
-          buff_mem = host_mem;
+          buff_mem = ur_cast<const int8_t *>(DstMem)[host_origin];
       }
   return UR_RESULT_SUCCESS;
 }
@@ -160,6 +159,8 @@ static inline ur_result_t doCopy_impl(ur_queue_handle_t hQueue, void *DstPtr,
                                       const ur_event_handle_t *EventWaitList,
                                       ur_event_handle_t *Event) {
   // todo: non-blocking, events, UR integration
+  std::ignore = EventWaitList;
+  std::ignore = Event;
   std::ignore = hQueue;
   std::ignore = numEventsInWaitList;
   if (SrcPtr != DstPtr && Size)

source/adapters/native_cpu/kernel.cpp

@@ -25,7 +25,8 @@ urKernelCreate(ur_program_handle_t hProgram, const char *pKernelName,
   if (kernelEntry == hProgram->_kernels.end())
     return UR_RESULT_ERROR_INVALID_KERNEL;
 
-  auto f = reinterpret_cast<nativecpu_ptr_t>(kernelEntry->second);
+  auto f = reinterpret_cast<nativecpu_ptr_t>(
+      const_cast<unsigned char *>(kernelEntry->second));
   auto kernel = new ur_kernel_handle_t_(pKernelName, *f);
 
   *phKernel = kernel;
@@ -171,6 +172,13 @@ urKernelGetSubGroupInfo(ur_kernel_handle_t hKernel, ur_device_handle_t hDevice,
     // todo: set proper values
     return ReturnValue(0);
   }
+  case UR_KERNEL_SUB_GROUP_INFO_FORCE_UINT32: {
+#ifdef _MSC_VER
+    __assume(0);
+#else
+    __builtin_unreachable();
+#endif
+  }
   }
   DIE_NO_IMPLEMENTATION;
 }

source/adapters/native_cpu/memory.hpp

@@ -61,6 +61,7 @@ struct _ur_buffer final : ur_mem_handle_t_ {
       : ur_mem_handle_t_(Size, false) {}
   _ur_buffer(_ur_buffer *b, size_t Offset, size_t Size)
       : ur_mem_handle_t_(b->_mem + Offset, false), SubBuffer(b) {
+    std::ignore = Size;
     SubBuffer.Origin = Offset;
   }