microsoft / microsoft/DirectXShaderCompiler
DXC Crash on Bad Shader
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Description
From forums question: https://forums.xboxlive.com/questions/121031/dxc-compiler-crash-on-invalid-compute-shader.html
Shader code is invalid - shouldn't compile successfully, but crashes DXC without providing an error message. Seems to be related to assigning one RWTexture2D global variable to another.
Command line:
dxc /Tcs_6_0 /Emain shader.txt
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
Download the attached shader.txt and first reproduce the crash with dxc /Tcs_6_0 /Emain shader.txt. Trace the compiler path handling the assignment between RWTexture2D globals and compare the invalid-shader diagnostic behavior. Done means the input no longer crashes DXC and reports an appropriate compilation error.
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
- 35/100