[25.03 RC1][codedb]-O3 -flto -flto-partition=one -fipa-reorder-fields -fipa-struct-sfc -fipa-struct-sfc-shadow编译pnetcdf报ICE:during GIMPLE pass: dce(at tree-ssa-dce.cc:987)

**【缺陷描述】：-O3 -flto -flto-partition=one -fipa-reorder-fields -fipa-struct-sfc -fipa-struct-sfc-shadow编译pnetcdf报ICE:during GIMPLE pass: dce(at tree-ssa-dce.cc:987)**

**一、缺陷信息**

**【缺陷所属的os版本】（如openEuler-22.03-LTS，参考命令"cat /etc/os-release"结果）**
openEuler-25.03
**【内核版本】（如kernel-5.10.0-60.138.0.165，参考命令"uname -r"结果）**
6.6.0-72.1.0.46.oe2503.aarch64
**【缺陷所属软件及版本号】（如kernel-5.10.0-60.138.0.165，参考命令"rpm -q 包名"结果）**
gcc-12.3.1-69.oe2503.aarch64
**【问题复现步骤】：请描述具体的操作步骤**
1.安装相关依赖
```
yum install openmpi openmpi-devel
```
2.执行下面的命令
```
tar -vxf pnetcdf-1.12.1.tar.gz
cd pnetcdf-1.12.1
./configure --prefix=/pnetcdf --build=aarch64-linux --enable-shared --enable-fortran --enable-large-file-test CC="mpicc" FC="mpifort -fallow-argument-mismatch" CXX="mpicxx" CFLAGS="-O3 -flto -flto-partition=one -fipa-reorder-fields -fipa-struct-sfc -fipa-struct-sfc-shadow" FFLAGS="-O3 -flto -flto-partition=one -fipa-reorder-fields -fipa-struct-sfc -fipa-struct-sfc-shadow" CXXFLAGS="-O3 -flto -flto-partition=one -fipa-reorder-fields -fipa-struct-sfc -fipa-struct-sfc-shadow"
make -j96
```
**【实际结果】**
![输入图片说明](https://foruda.gitee.com/images/1739868160556529644/aaafd4be_10666732.png "屏幕截图")
**【期望结果】**
编译通过
**【其他相关附件信息】**
pnetcdf源码： https://parallel-netcdf.github.io/Release/pnetcdf-1.12.1.tar.gz
**二、缺陷分析结构反馈**
影响性分析说明：

缺陷严重等级:(Critical/High/Moderate/Low)

缺陷根因说明:

受影响版本排查(受影响/不受影响):
openEuler-20.03-LTS-SP4
openEuler-22.03-LTS-SP3
openEuler-22.03-LTS-SP4
openEuler-24.03-LTS
openEuler-24.03-LTS-SP1

修复是否涉及abi变化(是/否):
openEuler-20.03-LTS-SP4
openEuler-22.03-LTS-SP3
openEuler-22.03-LTS-SP4
openEuler-24.03-LTS
openEuler-24.03-LTS-SP1

src-openEuler/gcc

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