[参考译文] C7000-CGT：尝试在 C7504 DSP 上使用 FIR4指令时编译器缺陷

尊敬的 Moritz：

我可以按照您提供的步骤重现此问题。 我将检查问题的根本原因。  

此外、我还能够使用优化级别3和4构建相同的内容。 所以、您可以尝试在相同的代码中使用-O3/-O4。  

此外、您能否提供测试输入和输出来验证它们。

此致、
Sivadeep

尊敬的 Sivadeep：
我尝试添加-O3和-O4、但两者的错误消息是相同的。 它不会编译

➜  Compiler Error ~/Downloads/ti-cgt-c7000_5.0.0.LTS/bin/cl7x --compile_only --cpp_file=BrokenFIR4.cpp --include_path=${HOME}/Downloads/ti-cgt-c7000_5.0.0.LTS/include --silicon_version=7504 -O3

>>>> Optimizer terminated abnormally
>>>>    in function _Z24demonstrateCompilerErrorPKtPKsPi()
>>>>    in file "BrokenFIR4.cpp"
This is caused by a defect in the TI C/C++ Optimizer.
TI Customer Support may be able to suggest a workaround to avoid this.

Upgrading to the newest version of the compiler may fix this problem.

Contact TI on the E2E support forums at http://e2e.ti.com

We need to see this ENTIRE error message and a complete, reproducible
test case including ALL of the command-line options.
Include the .pp file created by option --preproc_with_comment


>> Compilation failure
➜  Compiler Error ~/Downloads/ti-cgt-c7000_5.0.0.LTS/bin/cl7x --compile_only --cpp_file=BrokenFIR4.cpp --include_path=${HOME}/Downloads/ti-cgt-c7000_5.0.0.LTS/include --silicon_version=7504 -O4

>>>> Optimizer terminated abnormally
>>>>    in function _Z24demonstrateCompilerErrorPKtPKsPi()
>>>>    in file "BrokenFIR4.cpp"
This is caused by a defect in the TI C/C++ Optimizer.
TI Customer Support may be able to suggest a workaround to avoid this.

Upgrading to the newest version of the compiler may fix this problem.

Contact TI on the E2E support forums at http://e2e.ti.com

We need to see this ENTIRE error message and a complete, reproducible
test case including ALL of the command-line options.
Include the .pp file created by option --preproc_with_comment


>> Compilation failure
➜  Compiler Error 

关于输入/输出示例、针对的输入  

input[80} = {0,1,2,3,4,5,6,...79}
taps[4] = {1,0,0,0}

我期望看到的输出

output[80] = {0,1,2,3,4,...63,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}

您好、

我能够从 ti-cgt-c7000_4.1.0.LTS 构建相同的代码。 我尝试从 CCS 构建它。 我能够获得5.0 LTS 版本的相同版本。 我将在内部讨论、并向您介绍最新的解决方案。

此致、
Sivadeep

如果我按照您建议的方式更改变量的初始化方式、我可以确认我能够成功进行编译。

非常感谢您的调查！