microsoft / DirectXShaderCompiler

This repo hosts the source for the DirectX Shader Compiler which is based on LLVM/Clang.

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Typo of register -> registers crashes DXC with segfault

Nielsbishere opened this issue · comments

Description
The typo of Texture2D<float> _myGlobal : registers(t0, space0); instead of Texture2D<float> _myGlobal : register(t0, space0); crashes DXC internally.

Steps to Reproduce
https://godbolt.org/z/7od613jTo

#line 1 "Generated header file"
#line 1 "..StartGroup..ComputeShaderObject"
Texture2D<float> _myGlobal : registers(t0, space0);

RWTexture2D<float4> _output : register(u0, space0);

[numthreads(16, 16, 1)]
void main(int2 id : SV_DispatchThreadID) {

 int2 dims;
 _output.GetDimensions(dims.x, dims.y);

 if (any(id >= dims))
  return;

 _output[id] = float4(float2(id) / dims, 0, 1);
}

technique {
 pass {
  compute = main;
 }
}

Actual Behavior
Should give a compile error.

Environment

  • DXC version: Latest release
  • Host Operating System: N/A

Moved to backlog - looks like this is a regression introduced in 1.7.2308.