gcc 10.3 2203sp1编译nodejs，编译报错/usr/lib/gcc/x86_64-linux-gnu/10.3.1/include/avx2intrin.h:240:34:internal compiler error: in emit_move_insn, at expr.c:3814

**【标题描述】gcc 10.3 编译nodejs，编译报错**

**一、缺陷信息**

**内核信息：**
Linux openEuler 5.10.0-136.12.0.86.oe2203sp1.x86_64 #1 SMP Tue Dec 27 17:50:15 CST 2022 x86_64 x86_64 x86_64 GNU/Linux
**缺陷归属组件：**
gcc
**缺陷归属的版本：**
repo： https://repo.openeuler.org/openEuler-22.03-LTS-SP1/everything/x86_64/
gcc 2203sp1
gcc-10.3.1-20.x86_64.rpm
**缺陷简述：**
编译开源 https://nodejs.org/dist/v21.5.0/node-v21.5.0.tar.gz 报错

**【环境信息】**
```
[root@openEuler node-v21.5.0]# cat /etc/openEuler-latest
openeulerversion=openEuler-22.03-LTS-SP1
compiletime=2022-12-27-22-15-04
gccversion=10.3.1-20
kernelversion=5.10.0-136.12.0.86.oe2203sp1
openjdkversion=1.8.0.352.b08-3.oe2203sp1
```

**【问题复现步骤】**
```
yum install gcc gcc-c++ make python
wget https://nodejs.org/dist/v21.5.0/node-v21.5.0.tar.gz
tar -xf node-v21.5.0.tar.gz
cd node-v21.5.0
./configure
make
```

**【实际结果】**，请描述出问题的结果和影响
```
[root@localhost node-v21.5.0]# ./configure
Node.js configure: Found Python 3.9.9...
INFO: configure completed successfully
[root@localhost node-v21.5.0]# make
make -C out BUILDTYPE=Release V=0
  touch /root/node-v21.5.0/out/Release/obj.target/deps/googletest/gtest_prod.stamp
  g++ -o /root/node-v21.5.0/out/Release/obj.target/simdutf/deps/simdutf/simdutf.o ../deps/simdutf/simdutf.cpp '-D_GLIBCXX_USE_CXX11_ABI=1' '-DNODE_OPENSSL_CONF_NAME=nodejs_conf' '-DNODE_OPENSSL_HAS_QUIC' '-DICU_NO_USER_DATA_OVERRIDE' '-D__STDC_FORMAT_MACROS' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' -I../deps/simdutf  -pthread -Wall -Wextra -Wno-unused-parameter -m64 -O3 -fno-omit-frame-pointer -fno-rtti -fno-exceptions -std=gnu++17 -MMD -MF /root/node-v21.5.0/out/Release/.deps//root/node-v21.5.0/out/Release/obj.target/simdutf/deps/simdutf/simdutf.o.d.raw   -c
during RTL pass: expand
In file included from /usr/lib/gcc/x86_64-linux-gnu/10.3.1/include/immintrin.h:53,
                 from /usr/lib/gcc/x86_64-linux-gnu/10.3.1/include/x86intrin.h:32,
                 from ../deps/simdutf/simdutf.cpp:1223:
/usr/lib/gcc/x86_64-linux-gnu/10.3.1/include/avx2intrin.h: In function ‘std::pair<const char32_t*, char*> simdutf::icelake::{anonymous}::avx512_convert_utf32_to_utf8(const char32_t*, size_t, char*)’:
/usr/lib/gcc/x86_64-linux-gnu/10.3.1/include/avx2intrin.h:240:34: internal compiler error: in emit_move_insn, at expr.c:3814
  240 |   return (__m256i) ((__v16hi)__A == (__v16hi)__B);
      |                    ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
make[1]: *** [deps/simdutf/simdutf.target.mk:84: /root/node-v21.5.0/out/Release/obj.target/simdutf/deps/simdutf/simdutf.o] Error 1
make: *** [Makefile:134: node] Error 2

```
**【其他相关附件信息】**
比如系统message日志/组件日志、dump信息、图片等
NA
**缺陷详情参考链接：**
NA
**缺陷分析指导链接：**
NA

经过初步定位，把
https://gitee.com/src-openeuler/gcc/blob/openEuler-22.03-LTS-SP1/0068-Backport-Lower-VEC_COND_EXPR-into-internal-functions.patch
回退，就不会有编译问题。

* 制品仓的复现方法: 基于 **10.174.217.51** 
   - /root/rpmbuild/BUILD/build67
   - ../gcc67/configure --prefix=/root/rpmbuild/BUILD/install67 --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,fortran,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl --without-cloog --enable-gnu-indirect-function --build=x86_64-linux-gnu '--with-stage1-ldflags= -Wl,-z,relro,-z,now' '--with-boot-ldflags= -Wl,-z,relro,-z,now' --disable-bootstrap --with-tune=generic --with-arch_32=x86-64 --disable-multilib
```
git clone https://gitee.com/src-openeuler/gcc.git
git checkout openEuler-22.03-LTS-SP1

vim修改gcc.spec文件，找到%patch部分，
使用#注释掉不想打的补丁

执行rpmbuild -bp *.spec --define "_sourcedir $PWD"
会在/root/rpmbuild/BUILD/gcc-10.3.0生成源码目录
正常configure、make
```
  - 可以复现：/root/rpmbuild/BUILD/install68/bin/g++ ../deps/simdutf/simdutf.cpp -D_GLIBCXX_USE_CXX11_ABI=1 -DNODE_OPENSSL_CONF_NAME=nodejs_conf -DNODE_OPENSSL_HAS_QUIC -DICU_NO_USER_DATA_OVERRIDE -D__STDC_FORMAT_MACROS -DOPENSSL_NO_PINSHARED -DOPENSSL_THREADS -I../deps/simdutf -Wall -Wextra -Wno-unused-parameter -m64 -O3 -fno-omit-frame-pointer -fno-rtti -fno-exceptions -std=gnu++17 -S -fdump-tree-all

- 问题的根因：x86后端cmpv16hiv16hi（ **m256** ）处理出错，因此在某些优化暴露cmp指令的向量化时，就遇到找不到指令的问题
  - 根本的解决方法：从高版本移植相关的定义
  - 规避解决方法：加选项，避免优化生成相关的向量化指令

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