VK_KHR_shader_expect_assume

Other Extension Metadata

Last Modified Date

2023-12-06

IP Status

No known IP claims.

Contributors

• Kevin Petit, Arm
• Tobias Hector, AMD
• James Fitzpatrick, Imagination Technologies

Description

This extension allows the use of the SPV_KHR_expect_assume extension in SPIR-V shader modules which enables SPIR-V producers to provide optimization hints to the Vulkan implementation.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceShaderExpectAssumeFeaturesKHR

New Enum Constants

• VK_KHR_SHADER_EXPECT_ASSUME_EXTENSION_NAME
• VK_KHR_SHADER_EXPECT_ASSUME_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_EXPECT_ASSUME_FEATURES_KHR

New SPIR-V Capabilities

• ExpectAssumeKHR

Promotion to Vulkan 1.4

Functionality in this extension is included in core Vulkan 1.4 with the KHR suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.

Version History

• Revision 1, 2023-12-06 (Kevin Petit)
  • Initial revision