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Please try compiling with the patch below

diff --git a/paddle/phi/backends/custom/custom_device.cc b/paddle/phi/backends/custom/custom_device.cc
index df757b2..6c74ebb 100644
--- a/paddle/phi/backends/custom/custom_device.cc
+++ b/paddle/phi/backends/custom/custom_device.cc
@@ -348,7 +348,7 @@ class CustomDevice : public DeviceInterface {
       }
     } else {
       if (!pimpl_->memory_copy_p2p) {
-        std::unique_ptr<uint8_t> tmp(new uint8_t[size]);
+        std::unique_ptr<uint8_t> tmp(reinterpret_cast<uint8_t*>(new uint8_t[size]));
         MemoryCopyD2H(src_dev_id, tmp.get(), src, size);
         MemoryCopyH2D(dst_dev_id, dst, tmp.get(), size);
       } else {
@@ -440,7 +440,7 @@ class CustomDevice : public DeviceInterface {
       PADDLE_ENFORCE_CUSTOM_DEVICE_SUCCESS(
           pimpl_->device_memory_set(device, ptr, value, size));
     } else {
-      std::unique_ptr<uint8_t> tmp(new uint8_t[size]);
+      std::unique_ptr<uint8_t> tmp(reinterpret_cast<uint8_t*>(new uint8_t[size]));
       memset(tmp.get(), value, size);
       MemoryCopyH2D(dev_id, ptr, tmp.get(), size);
     }

bug描述 Describe the Bug

When compiling PaddlePaddle with GCC 12.1 several mismatched-new-delete errors arise in custom_device.cc of the Phi backend:

n file included from /usr/include/c++/12.1.0/memory:76,
                 from ./Paddle/paddle/fluid/platform/enforce.h:52,
                 from ./Paddle/paddle/fluid/platform/device/custom/enforce_custom.h:19,
                 from ./Paddle/paddle/phi/backends/custom/custom_device.cc:15:
In member function 'void std::default_delete<_Tp>::operator()(_Tp*) const [with _Tp = unsigned char]',
    inlined from 'std::unique_ptr<_Tp, _Dp>::~unique_ptr() [with _Tp = unsigned char; _Dp = std::default_delete<unsigned char>]' at /usr/include/c++/12.1.0/bits/unique_ptr.h:396:17,
    inlined from 'virtual void phi::CustomDevice::MemoryCopyP2P(const phi::Place&, void*, size_t, const void*, size_t, const phi::stream::Stream*)' at ./Paddle/paddle/phi/backends/custom/custom_device.cc:354:7:
/usr/include/c++/12.1.0/bits/unique_ptr.h:95:9: error: 'void operator delete(void*, std::size_t)' called on pointer returned from a mismatched allocation function [-Werror=mismatched-new-delete]
   95 |         delete __ptr;
      |         ^~~~~~~~~~~~
./Paddle/paddle/phi/backends/custom/custom_device.cc: In member function 'virtual void phi::CustomDevice::MemoryCopyP2P(const phi::Place&, void*, size_t, const void*, size_t, const phi::stream::Stream*)':
./Paddle/paddle/phi/backends/custom/custom_device.cc:351:54: note: returned from 'void* operator new [](std::size_t)'
  351 |         std::unique_ptr<uint8_t> tmp(new uint8_t[size]);
      |                                                      ^
In member function 'void std::default_delete<_Tp>::operator()(_Tp*) const [with _Tp = unsigned char]',
    inlined from 'std::unique_ptr<_Tp, _Dp>::~unique_ptr() [with _Tp = unsigned char; _Dp = std::default_delete<unsigned char>]' at /usr/include/c++/12.1.0/bits/unique_ptr.h:396:17,
    inlined from 'virtual void phi::CustomDevice::MemoryCopyP2P(const phi::Place&, void*, size_t, const void*, size_t, const phi::stream::Stream*)' at ./Paddle/paddle/phi/backends/custom/custom_device.cc:354:7:
/usr/include/c++/12.1.0/bits/unique_ptr.h:95:9: error: 'void operator delete(void*, std::size_t)' called on pointer returned from a mismatched allocation function [-Werror=mismatched-new-delete]
   95 |         delete __ptr;
      |         ^~~~~~~~~~~~
./Paddle/paddle/phi/backends/custom/custom_device.cc: In member function 'virtual void phi::CustomDevice::MemoryCopyP2P(const phi::Place&, void*, size_t, const void*, size_t, const phi::stream::Stream*)':
./Paddle/paddle/phi/backends/custom/custom_device.cc:351:54: note: returned from 'void* operator new [](std::size_t)'
  351 |         std::unique_ptr<uint8_t> tmp(new uint8_t[size]);
      |                                                      ^
In member function 'void std::default_delete<_Tp>::operator()(_Tp*) const [with _Tp = unsigned char]',
    inlined from 'std::unique_ptr<_Tp, _Dp>::~unique_ptr() [with _Tp = unsigned char; _Dp = std::default_delete<unsigned char>]' at /usr/include/c++/12.1.0/bits/unique_ptr.h:396:17,
    inlined from 'virtual void phi::CustomDevice::MemorySet(size_t, void*, uint8_t, size_t)' at ./Paddle/paddle/phi/backends/custom/custom_device.cc:446:5:
/usr/include/c++/12.1.0/bits/unique_ptr.h:95:9: error: 'void operator delete(void*, std::size_t)' called on pointer returned from a mismatched allocation function [-Werror=mismatched-new-delete]
   95 |         delete __ptr;
      |         ^~~~~~~~~~~~
./Paddle/paddle/phi/backends/custom/custom_device.cc: In member function 'virtual void phi::CustomDevice::MemorySet(size_t, void*, uint8_t, size_t)':
./Paddle/paddle/phi/backends/custom/custom_device.cc:443:52: note: returned from 'void* operator new [](std::size_t)'
  443 |       std::unique_ptr<uint8_t> tmp(new uint8_t[size]);
      |                                                    ^
In member function 'void std::default_delete<_Tp>::operator()(_Tp*) const [with _Tp = unsigned char]',
    inlined from 'std::unique_ptr<_Tp, _Dp>::~unique_ptr() [with _Tp = unsigned char; _Dp = std::default_delete<unsigned char>]' at /usr/include/c++/12.1.0/bits/unique_ptr.h:396:17,
    inlined from 'virtual void phi::CustomDevice::MemorySet(size_t, void*, uint8_t, size_t)' at ./Paddle/paddle/phi/backends/custom/custom_device.cc:446:5:
/usr/include/c++/12.1.0/bits/unique_ptr.h:95:9: error: 'void operator delete(void*, std::size_t)' called on pointer returned from a mismatched allocation function [-Werror=mismatched-new-delete]
   95 |         delete __ptr;
      |         ^~~~~~~~~~~~
./Paddle/paddle/phi/backends/custom/custom_device.cc: In member function 'virtual void phi::CustomDevice::MemorySet(size_t, void*, uint8_t, size_t)':
./Paddle/paddle/phi/backends/custom/custom_device.cc:443:52: note: returned from 'void* operator new [](std::size_t)'
  443 |       std::unique_ptr<uint8_t> tmp(new uint8_t[size]);
      |                                                    ^
cc1plus: all warnings being treated as errors
make[2]: *** [paddle/phi/backends/custom/CMakeFiles/custom_device.dir/build.make:76: paddle/phi/backends/custom/CMakeFiles/custom_device.dir/custom_device.cc.o] Error 1

其他补充信息 Additional Supplementary Information

check out git master;

cmake
make

The correct fix for this problem is shown below.

diff --git a/paddle/phi/backends/custom/custom_device.cc b/paddle/phi/backends/custom/custom_device.cc
index 928101b09f..d7397353ef 100644
--- a/paddle/phi/backends/custom/custom_device.cc
+++ b/paddle/phi/backends/custom/custom_device.cc
@@ -358,8 +358,7 @@ class CustomDevice : public DeviceInterface {
       }
     } else {
       if (!pimpl_->memory_copy_p2p) {
-        std::unique_ptr<uint8_t> tmp(
-            reinterpret_cast<uint8_t*>(new uint8_t[size]));
+        std::unique_ptr<uint8_t[]> tmp(new uint8_t[size]);
         MemoryCopyD2H(src_dev_id, tmp.get(), src, size);
         MemoryCopyH2D(dst_dev_id, dst, tmp.get(), size);
       } else {
@@ -451,8 +450,7 @@ class CustomDevice : public DeviceInterface {
       PADDLE_ENFORCE_CUSTOM_DEVICE_SUCCESS(
           pimpl_->device_memory_set(device, ptr, value, size));
     } else {
-      std::unique_ptr<uint8_t> tmp(
-          reinterpret_cast<uint8_t*>(new uint8_t[size]));
+      std::unique_ptr<uint8_t[]> tmp(new uint8_t[size]);
       memset(tmp.get(), value, size);
       MemoryCopyH2D(dev_id, ptr, tmp.get(), size);
     }

reference: https://en.cppreference.com/w/cpp/memory/unique_ptr

template <class T,class Deleter> class unique_ptr<T[], Deleter>; Manages a dynamically-allocated array of objects (e.g. allocated with new[])

template<class T, class Deleter = std::default_delete<T> > class unique_ptr; Manages a single object (e.g. allocated with new)

Here is the patch to fix this issue:

From e98f569707ba9fc7669000f593fd51094594c992 Mon Sep 17 00:00:00 2001
From: Si Jinyuan <sijinyuan@foxmail.com>
Date: Fri, 30 Dec 2022 01:42:59 +0900
Subject: [PATCH] Fix GCC12: mismatched-new-delete error in custom_device.cc

according to https://en.cppreference.com/w/cpp/memory/unique_ptr

When using std::unique_ptr to manage array pointers,
should use

template <class T,class Deleter> class unique_ptr<T[], Deleter>;

instead of

template<class T, class Deleter = std::default_delete<T> >
class unique_ptr;
---
 paddle/phi/backends/custom/custom_device.cc | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/paddle/phi/backends/custom/custom_device.cc b/paddle/phi/backends/custom/custom_device.cc
index 928101b09f..d7397353ef 100644
--- a/paddle/phi/backends/custom/custom_device.cc
+++ b/paddle/phi/backends/custom/custom_device.cc
@@ -358,8 +358,7 @@ class CustomDevice : public DeviceInterface {
       }
     } else {
       if (!pimpl_->memory_copy_p2p) {
-        std::unique_ptr<uint8_t> tmp(
-            reinterpret_cast<uint8_t*>(new uint8_t[size]));
+        std::unique_ptr<uint8_t[]> tmp(new uint8_t[size]);
         MemoryCopyD2H(src_dev_id, tmp.get(), src, size);
         MemoryCopyH2D(dst_dev_id, dst, tmp.get(), size);
       } else {
@@ -451,8 +450,7 @@ class CustomDevice : public DeviceInterface {
       PADDLE_ENFORCE_CUSTOM_DEVICE_SUCCESS(
           pimpl_->device_memory_set(device, ptr, value, size));
     } else {
-      std::unique_ptr<uint8_t> tmp(
-          reinterpret_cast<uint8_t*>(new uint8_t[size]));
+      std::unique_ptr<uint8_t[]> tmp(new uint8_t[size]);
       memset(tmp.get(), value, size);
       MemoryCopyH2D(dev_id, ptr, tmp.get(), size);
     }
-- 
2.37.1 (Apple Git-137.1)