Name Strings

SPV_ALTERA_runtime_aligned

Contact

To report problems with this extension, please open a new issue at:

https://github.com/KhronosGroup/SPIRV-Registry

Contributors

  • Joe Garvey, Intel

Notice

Copyright (c) 2021 Intel Corporation. All rights reserved.

Status

Final draft

Version

Last Modified Date

2021-06-29

Revision

1

Dependencies

This extension is written against the SPIR-V Specification, Version 1.5 Revision 5.

This extension requires SPIR-V 1.0.

Overview

This extension introduces a new function parameter attribute that can be applied to pointers to indicate that the pointer was allocated with an implementation-specific alignment.

Extension Name

To use this extension within a SPIR-V module, the following OpExtension must be present in the module:

OpExtension "SPV_ALTERA_runtime_aligned"

New capabilities

This extension introduces a new capability:

RuntimeAlignedAttributeALTERA

Token Number Assignments

RuntimeAlignedAttributeALTERA

5939

RuntimeAlignedALTERA

5940

Modifications to the SPIR-V Specification, Version 1.5 Revision 5

Function Parameter Attribute

Modify Section 3.19, Function Parameter Attribute, adding a row to the table:

Function Parameter Attribute Enabling Capabilities

5940

RuntimeAlignedALTERA
Indicates that the pointer comes directly from a runtime allocation and was not offset in any way. This pointer can thus be assumed to have the implementation-defined alignment with which the corresponding runtime is known to allocate pointers. Only valid for pointer parameters. Not valid on return values.

RuntimeAlignedAttributeALTERA

Capability

Modify Section 3.31, Capability, adding a row to the Capability table:

Capability Implicitly Declares

5939

RuntimeAlignedAttributeALTERA

Kernel

Validation Rules

None.

Issues

None.

Revision History

Rev Date Author Changes

1

2021-06-29

Joe Garvey

Initial public release