JIT stencil digest is too coarse
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@savannahostrowski is already working on this.
Since May 23, 2026.
build
topic-JIT
type-feature
- Dominant language
- Python
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- 77.2k
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Description
The current digest hashes all of pyconfig.h, which means autoconf-cosmetic changes (_COSMO_SOURCE, future feature-test macros) invalidate the digest even though they don't reach stencil codegen.
Ideally, we could find a way to narrow the digest to inputs that actually affect codegen. Perhaps we could hash preprocessor output of stencil sources or similar?
Related to #148646 and #148647
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