Describe the solution you'd like
Generally we can't make the validator more restrictive for older versions, but perhaps we can add an opt-in -strict option to force validation to check extra cases. This would be useful in Clang for allowing us to test the code generator under a stricter validation mode even with older shader model targets.
Is your feature request related to a problem? Please describe. The DXIL validator misses some cases of obviously wrong IR generation (see: https://github.com/microsoft/DirectXShaderCompiler/issues/3706, and other issues tagged validation.
Describe the solution you'd like Generally we can't make the validator more restrictive for older versions, but perhaps we can add an opt-in
-strictoption to force validation to check extra cases. This would be useful in Clang for allowing us to test the code generator under a stricter validation mode even with older shader model targets.