microsoft / microsoft/DirectXShaderCompiler
Crash when noinline/export function with node objects for lib_6_x
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- Dominant language
- C++
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Description
Description
DXC crashed when use noinline/export function with node objects for lib_6_x.
Steps to Reproduce
Compile following shader with dxc -T lib_6_x
struct RECORD
{
half h;
};
DispatchNodeInputRecord wrapper(DispatchNodeInputRecord t);
RWBuffer buf0;
[Shader("node")]
[NumThreads(1024,1,1)]
[NodeDispatchGrid(64,1,1)]
[NodeLaunch("broadcasting")]
void node_DispatchNodeInputRecord(DispatchNodeInputRecord input)
{
buf0[0] = wrapper(input).Get().h;
}
Actual Behavior
Crashed
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 compiling the provided shader with dxc -T lib_6_x, using node_DispatchNodeInputRecord as the reproducer entry point. Trace the crash through the compiler's lib_6_x and node-object handling; done means this input no longer crashes and produces the expected compiler result.
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
- 42/100