microsoft / microsoft/DirectXShaderCompiler
Link fails when using -Fd with -Qstrip_debug
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Description
Description
Linking a compute shader with the command-line DXC will error out if using -Fd and -Qstrip_debug together. This is not consistent with the compiler, which will output a PDB even if debug info is stripped from the object file.
Steps to Reproduce
Create a file named test.hlsl:
RWTexture2D<uint> rwTexResource[] : register(u0, space2400);
[numthreads(8, 8, 1)]
void main(uint3 dtid : SV_DispatchThreadID, uint3 gtid : SV_GroupThreadID, uint3 gid : SV_GroupID, uint gindex : SV_GroupIndex)
{
rwTexResource[0][dtid.xy] = texResource.Load(dtid.xyz);
}
Run these commands:
dxc.exe -T lib_6_3 -Zi -Qstrip_reflect -Qembed_debug -Fd testc.pdb -Fo test.lib test.hlsl
dxc.exe -link -T lib_6_3 -Zi -Qstrip_reflect -Qstrip_debug -Fd test.pdb -Fo test.bin test.lib
Actual Behavior
DXC fails with error:
dxc failed : DXIL container does not contain the given part.
Environment
- DXC version dxcompiler.dll: 1.7 - 1.7.2207.3 (e9137cd1d); dxil.dll: 1.7(101.7.2207.10)
- Host Operating System Windows 10
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the failure with the two DXC commands and the supplied test.hlsl shader. Start by tracing the linker path used with -Qstrip_debug and -Fd, then verify how it handles the missing debug-related container part. Done means linking succeeds and produces test.pdb while retaining the requested stripping behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100