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| author | Anders Leino <aleino@nvidia.com> | 2025-03-05 08:16:29 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-03-05 06:16:29 +0000 |
| commit | 5248a0254a48382d06ecb190c9f87c0ab62ff534 (patch) | |
| tree | 4bc2abc4d4394083e0a45732226f34232756481b /docs/user-guide/toc.html | |
| parent | 6f56b473f4ab49dd6ec111b56cfc1701196f9c8c (diff) | |
Fix codegen bug when targeting PTX with new API (#6506)
* Add cuda codegen bug repro
This just compiles tests/compute/simlpe.slang for PTX with the new compilation API, in
order to reproduce a code generation bug.
* Detect entrypoint more robustly when applying ConstRef hack during lowring
For shaders like tests/compute/simple.slang, which have a 'numthreads' attribute but no
'shader' attribute, the old compile request API would add an EntryPointAttribute to the
AST node of the entry point. However, the new API doesn't, and so a certain ConstRef hack
doesn't get applied when using the new API, leading to subsequent code generation issues.
This patch also checks for a 'numthreads' attribute when deciding whether to apply the
ConstRef hack.
This closes issue #6507 and helps to resolve issue #4760.
* Add expected failure list for GitHub runners
Our GitHub runners don't have the CUDA toolkits installed, so they can't run all tests.
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