Tablegen fails when building for debug on Windows with the latest Visual Studio version. #45453
Description
| Bugzilla Link | 46108 |
| Resolution | DUPLICATE |
| Resolved on | May 27, 2020 14:23 |
| Version | 10.0 |
| OS | Windows NT |
| Blocks | #44654 |
| CC | @efriedma-quic,@tstellar |
Extended Description
Using the latest Visual Studio release 16.6.0, llvm fails to build on Windows when building for debug.
This issue is present in the 10.0.0 release as well as the 10.0.1-rc1 release, but not in the current master branch.
llvm-tblgen.exe shows some unexpected behaviour.
See also https://llvm.discourse.group/t/llvm-not-building-in-vusual-studio/1139/3
Here is some of the erroneous output:
>llvm-tblgen.exe: Unknown command line argument '-gen-attrs'. Try: '..\..\Debug\bin\llvm-tblgen.exe --help' 28>llvm-tblgen.exe: Did you mean '--stats'? 27>llvm-tblgen.exe: Unknown command line argument '-gen-attrs'. Try: '..\..\..\Debug\bin\llvm-tblgen.exe --help' 27>llvm-tblgen.exe: Did you mean '--stats'? 31>llvm-tblgen.exe: Unknown command line argument '-gen-opt-parser-defs'. Try: '..\..\..\Debug\bin\llvm-tblgen.exe --help' 31>llvm-tblgen.exe: Did you mean '--info-output-file'? 29>llvm-tblgen.exe: Unknown command line argument '-gen-searchable-tables'. Try: '..\..\..\Debug\bin\llvm-tblgen.exe --help' 29>llvm-tblgen.exe: Did you mean '--info-output-file'? 30>llvm-tblgen.exe: Unknown command line argument '-gen-opt-parser-defs'. Try: '..\..\..\Debug\bin\llvm-tblgen.exe --help' 30>llvm-tblgen.exe: Did you mean '--info-output-file'? 28>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(231,5): error MSB6006: "cmd.exe" exited with code 1. 28>Done building project "AttributeCompatFuncTableGen.vcxproj" -- FAILED. 31>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(231,5): error MSB6006: "cmd.exe" exited with code 1. 31>Done building project "LibOptionsTableGen.vcxproj" -- FAILED. 27>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(231,5): error MSB6006: "cmd.exe" exited with code 1. 27>Done building project "intrinsics_gen.vcxproj" -- FAILED. 29>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(231,5): error MSB6006: "cmd.exe" exited with code 1. 29>Done building project "InstCombineTableGen.vcxproj" -- FAILED. 30>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(231,5): error MSB6006: "cmd.exe" exited with code 1. 30>Done building project "DllOptionsTableGen.vcxproj" -- FAILED.