HLSL supports half type.
When enable-16bit-types is not set, half will be treated as float.
When enable-16bit-types is set, half will be treated like real 16bit float type and map to llvm half type.
Also change CXXABI to Microsoft to match dxc behavior.
The mangle name for half is "$f16@" when half is treat as native half type and "$halff@" when treat as float.
In AST, half is still half.
The special thing is done at clang codeGen, when NativeHalfType is false, half will translated into float.
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D124790
This is to avoid err_target_unknown_abi which is caused by use default TargetTriple instead of shader model target triple.
Reviewed By: beanz
Differential Revision: https://reviews.llvm.org/D125585
fcgl option will make compilation stop after clang codeGen and output the llvm ir.
It is added to check clang codeGen output for HLSL.
It will be translated into -S -emit-llvm and -disable-llvm-passes.
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D124983
The DXIL validator version option(/validator-version) decide the validator version when compile hlsl.
The format is major.minor like 1.0.
In normal case, the value of validator version should be got from DXIL validator. Before we got DXIL validator ready for llvm/main, DXIL validator version option is added first to set validator version.
It will affect code generation for DXIL, so it is treated as a code gen option.
A new member std::string DxilValidatorVersion is added to clang::CodeGenOptions.
Then CGHLSLRuntime is added to clang::CodeGenModule.
It is used to translate clang::CodeGenOptions::DxilValidatorVersion into a ModuleFlag under key "dx.valver" at end of clang code generation.
Reviewed By: beanz
Differential Revision: https://reviews.llvm.org/D123884
The target profile option(/T) decide the shader model when compile hlsl.
The format is shaderKind_major_minor like ps_6_1.
The shader model is saved as llvm::Triple is clang/llvm like
dxil-unknown-shadermodel6.1-hull.
The main job to support the option is translating ps_6_1 into
shadermodel6.1-pixel.
That is done inside tryParseProfile at HLSL.cpp.
To integrate the option into clang Driver, a new DriverMode DxcMode is
created. When DxcMode is enabled, OSType for TargetTriple will be
forced into Triple::ShaderModel. And new ToolChain HLSLToolChain will
be created when OSType is Triple::ShaderModel.
In HLSLToolChain, ComputeEffectiveClangTriple is overridden to call
tryParseProfile when targetProfile option is set.
To make test work, Fo option is added and .hlsl is added for active
-xhlsl.
Reviewed By: beanz
Differential Revision: https://reviews.llvm.org/D122865
Patch by: Xiang Li <python3kgae@outlook.com>
Xiang Li