microsoft / microsoft/DirectXShaderCompiler
DXC Compiler Crash
Open
Nobody has claimed this yet.
bug
crash
incorrect-code
- Dominant language
- C++
- Stars
- 3.7k
- Forks
- 900
- Avg merge
- 2d 11h
- Merged PRs (30d)
- 44
Description
This minimal repro code snippet will crash DXC rather than emitting an error message:
cbuffer cb0 : register(b0)
{
float4 colors[4];
}
float4 PSMain() : SV_TARGET
{
uint index = index; // Initializing a variable to itself is bad!
return colors[index];
}
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
Start by running the minimal HLSL reproducer through DXC and confirm that self-initialization causes a compiler crash instead of a diagnostic. Trace the compiler path handling this declaration and add or update a regression test; done means the reproducer emits an error message without crashing.
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