[HIP] Add support functions for C++ polymorphic types

[scchan]

Summary

Add runtime functions to detect invalid calls to pure or deleted virtual
functions

[yaxunl]

can you add a test to https://github.com/llvm/llvm-project/blob/main/clang/test/Headers/hip-header.hip

[scchan]

Adding test

[yaxunl]

LGTM. Thanks! pls remove the extra line when committing.

clang/test/Headers/hip-header.hip

88 ↗

(On Diff #353035)

extrac line

[scchan]

Minor clean up in the hip-header.hip test

clang/lib/Headers/__clang_hip_runtime_wrapper.h

 /*===---- __clang_hip_runtime_wrapper.h - HIP runtime support ---------------===
  *
  * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  * See https://llvm.org/LICENSE.txt for license information.
  * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===-----------------------------------------------------------------------===
  */

 #define __shared__ __attribute__((shared))
 #define __constant__ __attribute__((constant))
 #define __managed__ __attribute__((managed))
 
 #if !defined(__cplusplus) || __cplusplus < 201103L
   #define nullptr NULL;
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+  __attribute__((__visibility__("default")))
+  __attribute__((weak))
+  __attribute__((noreturn))
+  __device__ void __cxa_pure_virtual(void) {
+    __builtin_trap();
+  }
+  __attribute__((__visibility__("default")))
+  __attribute__((weak))
+  __attribute__((noreturn))
+  __device__ void __cxa_deleted_virtual(void) {
+    __builtin_trap();
+  } 
+}
+#endif //__cplusplus
+
 #if __HIP_ENABLE_DEVICE_MALLOC__
 extern "C" __device__ void *__hip_malloc(size_t __size);
 extern "C" __device__ void *__hip_free(void *__ptr);
 static inline __device__ void *malloc(size_t __size) {
   return __hip_malloc(__size);
 }
 static inline __device__ void *free(void *__ptr) { return __hip_free(__ptr); }
 #else