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Expose llvm groupdata size as a shadergroup attribute #1642

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chellmuth
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Signed-off-by: Chris Hellmuth chellmuth@gmail.com

Description

Adds the llvm_groupdata_size attribute so the renderer can inspect a shader group's GroupData struct size. On GPU this lets us reserve memory more efficiently.

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Checklist:

  • I have read the contribution guidelines.
  • I have previously submitted a Contributor License Agreement.
  • I have updated the documentation, if applicable.
  • I have ensured that the change is tested somewhere in the testsuite (adding new test cases if necessary).
  • My code follows the prevailing code style of this project.

Signed-off-by: Chris Hellmuth <chellmuth@gmail.com>
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@lgritz lgritz left a comment

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Can you please also add to the comments in oslexec.h (line 334-448) where we briefly explain every attribute that can be queried?

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LGTM, thanks!

@lgritz lgritz merged commit 9ae5b69 into AcademySoftwareFoundation:main Feb 4, 2023
lgritz pushed a commit to lgritz/OpenShadingLanguage that referenced this pull request Feb 20, 2023
chellmuth pushed a commit to chellmuth/OpenShadingLanguage that referenced this pull request Sep 6, 2024
* Expose llvm groupdata size as a shadergroup attribute (AcademySoftwareFoundation#1642)

See merge request spi/dev/3rd-party/osl-feedstock!40
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2 participants