This extension allows the use of SPIR-V 1.4 shader modules. SPIR-V 1.4’s new features primarily make it an easier target for compilers from high-level languages, rather than exposing new hardware functionality.

SPIR-V 1.4 incorporates features that are also available separately as extensions. SPIR-V 1.4 shader modules do not need to enable those extensions with the OpExtension opcode, since they are integral parts of SPIR-V 1.4.

SPIR-V 1.4 introduces new floating point execution mode capabilities, also available via SPV_KHR_float_controls. Implementations are not required to support all of these new capabilities; support can be queried using VkPhysicalDeviceFloatControlsPropertiesKHR from the VK_KHR_shader_float_controls extension.

Promotion to Vulkan 1.2

All functionality in this extension is included in core Vulkan 1.2, with the KHR suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.

VK_KHR_spirv_1_4

Name String

VK_KHR_spirv_1_4

Extension Type

Device extension

Registered Extension Number

237

Revision

1

Extension and Version Dependencies

Version 1.1 and VK_KHR_shader_float_controls

Deprecation state

• Promoted to Vulkan 1.2

Contact

• Jesse Hall critsec

Other Extension Metadata

Last Modified Date

2019-04-01

IP Status

No known IP claims.

Interactions and External Dependencies

• Requires SPIR-V 1.4.
• Promoted to Vulkan 1.2 Core

Contributors

• Alexander Galazin, Arm
• David Neto, Google
• Jesse Hall, Google
• John Kessenich, Google
• Neil Henning, AMD
• Tom Olson, Arm