VK_KHR_shader_subgroup_rotate

Last Modified Date

2024-01-29

IP Status

No known IP claims.

Contributors

• Kévin Petit, Arm Ltd.
• Tobias Hector, AMD
• John Leech, Khronos
• Matthew Netsch, Qualcomm
• Jan-Harald Fredriksen, Arm Ltd.
• Graeme Leese, Broadcom
• Tom Olson, Arm Ltd.
• Spencer Fricke, LunarG Inc.

This extension adds support for the subgroup rotate instruction defined in SPV_KHR_subgroup_rotate.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceShaderSubgroupRotateFeaturesKHR

New Enum Constants

• VK_KHR_SHADER_SUBGROUP_ROTATE_EXTENSION_NAME
• VK_KHR_SHADER_SUBGROUP_ROTATE_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SUBGROUP_ROTATE_FEATURES_KHR
• Extending VkSubgroupFeatureFlagBits:
  • VK_SUBGROUP_FEATURE_ROTATE_BIT_KHR
  • VK_SUBGROUP_FEATURE_ROTATE_CLUSTERED_BIT_KHR

New SPIR-V Capabilities

• GroupNonUniformRotateKHR

Version History

• Revision 2, 2024-01-29 (Kévin Petit)
  • Add VK_SUBGROUP_FEATURE_ROTATE_BIT_KHR and VK_SUBGROUP_FEATURE_ROTATE_CLUSTERED_BIT_KHR
• Revision 1, 2023-06-20 (Kévin Petit)
  • Initial revision