[OPENMP][NVPTX]Add NVPTX specific definitions for new/delete operators.

[ABataev]

Summary

To use new/delete in NVPTX code we need to define them. Implementation
copied from CUDA wrappers.

[ABataev]

A note: this header file requires to include stdlib.h too to see the declarations of malloc/free. Shall We include it here to fix it? otherwise the error is reported that malloc and free are declared.

[jdoerfert]

In D73128#1832033, @ABataev wrote:

A note: this header file requires to include stdlib.h too to see the declarations of malloc/free. Shall We include it here to fix it? otherwise the error is reported that malloc and free are declared.

Including it here seems fine to me. Probably <cstdlib>

[jdoerfert]

Some minor comments but other than that, LGTM.

Nit: Clang format the file

clang/lib/Headers/openmp_wrappers/new

9

Nit: The license usually has C++ style comments //

28

Style: No braces around single statements. We could even call it unconditionally.

44

Style: No braces around single statements. We could even call it unconditionally.

[merge_guards_bot]

Unit tests: fail. 62080 tests passed, 1 failed and 784 were skipped.

failed: Clang.Driver/cc-print-options.c

clang-tidy: unknown.

clang-format: pass.

Build artifacts: diff.json, clang-format.patch, CMakeCache.txt, console-log.txt, test-results.xml

[ABataev]

In D73128#1832061, @jdoerfert wrote:

Some minor comments but other than that, LGTM.

Nit: Clang format the file

It is a formatted file.

[ABataev]

Address comments

[merge_guards_bot]

Unit tests: fail. 62080 tests passed, 1 failed and 784 were skipped.

failed: Clang.Driver/cc-print-options.c

clang-tidy: unknown.

clang-format: pass.

Build artifacts: diff.json, clang-format.patch, CMakeCache.txt, console-log.txt, test-results.xml

clang/lib/Headers/CMakeLists.txt

set(ppc_wrapper_files
   ppc_wrappers/smmintrin.h
 )
 
 set(openmp_wrapper_files
   openmp_wrappers/math.h
   openmp_wrappers/cmath
   openmp_wrappers/__clang_openmp_math.h
   openmp_wrappers/__clang_openmp_math_declares.h
+  openmp_wrappers/new
 )
 
 set(output_dir ${LLVM_LIBRARY_OUTPUT_INTDIR}/clang/${CLANG_VERSION}/include)
 set(out_files)
 set(generated_files)
 
 function(copy_header_to_output_dir src_dir file)
   set(src ${src_dir}/${file})

clang/lib/Headers/openmp_wrappers/new

+//===--------- new - OPENMP wrapper for <new> ------------------------------===
+//
+// 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
+//
+//===-----------------------------------------------------------------------===
+
+#ifndef __CLANG_OPENMP_WRAPPERS_NEW
+#define __CLANG_OPENMP_WRAPPERS_NEW
+
+#include_next <new>
+
+#if defined(__NVPTX__) && defined(_OPENMP)
+
+#include <cstdlib>
+
+#pragma push_macro("OPENMP_NOEXCEPT")
+#if __cplusplus >= 201103L
+#define OPENMP_NOEXCEPT noexcept
+#else
+#define OPENMP_NOEXCEPT
+#endif
+
+// Device overrides for non-placement new and delete.
+inline void *operator new(__SIZE_TYPE__ size) {
+  if (size == 0)
+    size = 1;
+  return ::malloc(size);
+}
+inline void *operator new(__SIZE_TYPE__ size,
+                          const std::nothrow_t &) OPENMP_NOEXCEPT {
+  return ::operator new(size);
+}
+
+inline void *operator new[](__SIZE_TYPE__ size) { return ::operator new(size); }
+inline void *operator new[](__SIZE_TYPE__ size, const std::nothrow_t &) {
+  return ::operator new(size);
+}
+
+inline void operator delete(void *ptr)OPENMP_NOEXCEPT {
+  if (ptr)
+    ::free(ptr);
+}
+inline void operator delete(void *ptr, const std::nothrow_t &)OPENMP_NOEXCEPT {
+  ::operator delete(ptr);
+}
+
+inline void operator delete[](void *ptr) OPENMP_NOEXCEPT {
+  ::operator delete(ptr);
+}
+inline void operator delete[](void *ptr,
+                              const std::nothrow_t &) OPENMP_NOEXCEPT {
+  ::operator delete(ptr);
+}
+
+// Sized delete, C++14 only.
+#if __cplusplus >= 201402L
+inline void operator delete(void *ptr, __SIZE_TYPE__ size)OPENMP_NOEXCEPT {
+  ::operator delete(ptr);
+}
+inline void operator delete[](void *ptr, __SIZE_TYPE__ size) OPENMP_NOEXCEPT {
+  ::operator delete(ptr);
+}
+#endif
+
+#pragma pop_macro("OPENMP_NOEXCEPT")
+#endif
+
+#endif // include guard