microsoft / microsoft/DirectXShaderCompiler

Resources in entry function parameters causes compiler crash

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bug incorrect-code
Dominant language
C++
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Description

Description
Resource types such as Textures or SamplerStates in the entry function parameters cause the compile to crash. This is incorrect code, but it shouldn't crash.

Steps to Reproduce
https://godbolt.org/z/rb3Y1Wa7r

Use a resource type as an entry function parameter.

Actual Behavior
The compiler crashes. It should produce a helpful error.

Environment

  • DXC version 1.8.2402
  • Host Operating System macos 15.3.1

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Run the Godbolt reproduction linked in the issue with a resource type in an entry function parameter and observe the compiler crash. Trace the DXC compiler path handling entry-point parameters, then make the invalid input produce a helpful diagnostic and add coverage for the reproduction.

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

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