Fix unexpected error in CreatePipelineCheckShaderCapabilityExtension2of2

[karl-lunarg]

Issue by chrisforbes (MIGRATED)
Friday May 04, 2018 at 18:12 GMT
Originally opened as KhronosGroup/Vulkan-LoaderAndValidationLayers#2645

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[ RUN      ] VkPositiveLayerTest.CreatePipelineCheckShaderCapabilityExtension2of2
Unexpected: Object: VK_NULL_HANDLE (Type = 0) | SPIR-V module not valid: Vulkan spec allows BuiltIn ViewportIndex to be used only with Fragment or Geometry execution models. ID <0> (OpStore) is referencing ID <8> (OpVariable) which is decorated with BuiltIn ViewportIndex in function <4> called with execution model Vertex.

This may be a limitation of the current SPIRV-Tools, but needs some investigation.

[karl-lunarg]

Comment by chrisforbes (MIGRATED)
Friday May 04, 2018 at 19:57 GMT

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This shader needs to express the ShaderViewportIndexLayerNV capability, which it doesn't.

[mark-lunarg]

This unexpected error no longer occurs.