# VkPhysicalDeviceShaderIntegerDotProductProperties(3) Manual Page

## Name

VkPhysicalDeviceShaderIntegerDotProductProperties - Structure containing information about integer dot product support for a physical device

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## C Specification

The `VkPhysicalDeviceShaderIntegerDotProductProperties` structure is defined as:

    // Provided by VK_VERSION_1_3
    typedef struct VkPhysicalDeviceShaderIntegerDotProductProperties {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           integerDotProduct8BitUnsignedAccelerated;
        VkBool32           integerDotProduct8BitSignedAccelerated;
        VkBool32           integerDotProduct8BitMixedSignednessAccelerated;
        VkBool32           integerDotProduct4x8BitPackedUnsignedAccelerated;
        VkBool32           integerDotProduct4x8BitPackedSignedAccelerated;
        VkBool32           integerDotProduct4x8BitPackedMixedSignednessAccelerated;
        VkBool32           integerDotProduct16BitUnsignedAccelerated;
        VkBool32           integerDotProduct16BitSignedAccelerated;
        VkBool32           integerDotProduct16BitMixedSignednessAccelerated;
        VkBool32           integerDotProduct32BitUnsignedAccelerated;
        VkBool32           integerDotProduct32BitSignedAccelerated;
        VkBool32           integerDotProduct32BitMixedSignednessAccelerated;
        VkBool32           integerDotProduct64BitUnsignedAccelerated;
        VkBool32           integerDotProduct64BitSignedAccelerated;
        VkBool32           integerDotProduct64BitMixedSignednessAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating8BitUnsignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating8BitSignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating8BitMixedSignednessAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating4x8BitPackedUnsignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating4x8BitPackedSignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating4x8BitPackedMixedSignednessAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating16BitUnsignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating16BitSignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating16BitMixedSignednessAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating32BitUnsignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating32BitSignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating32BitMixedSignednessAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating64BitUnsignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating64BitSignedAccelerated;
        VkBool32           integerDotProductAccumulatingSaturating64BitMixedSignednessAccelerated;
    } VkPhysicalDeviceShaderIntegerDotProductProperties;

or the equivalent

    // Provided by VK_KHR_shader_integer_dot_product
    typedef VkPhysicalDeviceShaderIntegerDotProductProperties VkPhysicalDeviceShaderIntegerDotProductPropertiesKHR;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

## Description

- `integerDotProduct8BitUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit unsigned dot product operations using the `OpUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct8BitSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit signed dot product operations using the `OpSDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct8BitMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit mixed signedness dot product operations using the `OpSUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct4x8BitPackedUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit unsigned dot product operations from operands packed into 32-bit integers using the `OpUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct4x8BitPackedSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit signed dot product operations from operands packed into 32-bit integers using the `OpSDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct4x8BitPackedMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit mixed signedness dot product operations from operands packed into 32-bit integers using the `OpSUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct16BitUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 16-bit unsigned dot product operations using the `OpUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct16BitSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 16-bit signed dot product operations using the `OpSDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct16BitMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 16-bit mixed signedness dot product operations using the `OpSUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct32BitUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 32-bit unsigned dot product operations using the `OpUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct32BitSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 32-bit signed dot product operations using the `OpSDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct32BitMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 32-bit mixed signedness dot product operations using the `OpSUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct64BitUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 64-bit unsigned dot product operations using the `OpUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct64BitSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 64-bit signed dot product operations using the `OpSDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProduct64BitMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 64-bit mixed signedness dot product operations using the `OpSUDotKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating8BitUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit unsigned accumulating saturating dot product operations using the `OpUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating8BitSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit signed accumulating saturating dot product operations using the `OpSDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating8BitMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit mixed signedness accumulating saturating dot product operations using the `OpSUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating4x8BitPackedUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit unsigned accumulating saturating dot product operations from operands packed into 32-bit integers using the `OpUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating4x8BitPackedSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit signed accumulating saturating dot product operations from operands packed into 32-bit integers using the `OpSDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating4x8BitPackedMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 8-bit mixed signedness accumulating saturating dot product operations from operands packed into 32-bit integers using the `OpSUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating16BitUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 16-bit unsigned accumulating saturating dot product operations using the `OpUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating16BitSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 16-bit signed accumulating saturating dot product operations using the `OpSDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating16BitMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 16-bit mixed signedness accumulating saturating dot product operations using the `OpSUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating32BitUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 32-bit unsigned accumulating saturating dot product operations using the `OpUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating32BitSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 32-bit signed accumulating saturating dot product operations using the `OpSDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating32BitMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 32-bit mixed signedness accumulating saturating dot product operations using the `OpSUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating64BitUnsignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 64-bit unsigned accumulating saturating dot product operations using the `OpUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating64BitSignedAccelerated` is a boolean that will be `VK_TRUE` if the support for 64-bit signed accumulating saturating dot product operations using the `OpSDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

- `integerDotProductAccumulatingSaturating64BitMixedSignednessAccelerated` is a boolean that will be `VK_TRUE` if the support for 64-bit mixed signedness accumulating saturating dot product operations using the `OpSUDotAccSatKHR` SPIR-V instruction is accelerated as defined below.

If the `VkPhysicalDeviceShaderIntegerDotProductProperties` structure is included in the `pNext` chain of the VkPhysicalDeviceProperties2 structure passed to vkGetPhysicalDeviceProperties2, it is filled in with each corresponding implementation-dependent property.

These are properties of the integer dot product acceleration information of a physical device.

Note | A dot product operation is deemed accelerated if its implementation provides a performance advantage over application-provided code composed from elementary instructions and/or other dot product instructions, either because the implementation uses optimized machine code sequences whose generation from application-provided code cannot be guaranteed or because it uses hardware features that cannot otherwise be targeted from application-provided code.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceShaderIntegerDotProductProperties-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_INTEGER_DOT_PRODUCT_PROPERTIES`

## See Also

VK_KHR_shader_integer_dot_product, VK_VERSION_1_3, VkBool32, VkStructureType

## Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0