Henri Verbeet pushed to branch master at wine / vkd3d

Commits:

• b1d89154
  by Shaun Ren at 2025-04-02T18:49:52+02:00

  vkd3d-shader/hlsl: Divert written uniform derefs to temps before copy-propagation passes.
  
  The following pixel shader currently triggers an infinite loop during
  copy propagation, which is fixed by this commit:
  
      sampler s;
      Texture2D t1, t2;
  
      float4 main() : sv_target
      {
          Texture2D t = t1;
          t1 = t2;
          t2 = t;
          return t1.Sample(s, float2(0, 0)) + t2.Sample(s, float2(0, 0));
      }
  
  The infinite loop occurs because copy_propagation_transform_object_load()
  replaces t1 in the resource_load(t1, ...) instruction
  with t2, t1, t2, ... repeatedly.
  

• 7aebed0e
  by Shaun Ren at 2025-04-02T18:49:52+02:00

  vkd3d-shader/hlsl: Ensure that uniform objects are never written to in copy_propagation_transform_object_load().
  

• 3e44bd4e
  by Shaun Ren at 2025-04-02T18:51:10+02:00

  tests/hlsl: Add a test for copy-propagation of uniform texture object writes.
  

2 changed files:

• libs/vkd3d-shader/hlsl_codegen.c
• tests/hlsl/hard-copy-prop.shader_test