Fix simd reshape lazy view - #2930
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JohanMabille merged 10 commits intoAug 27, 2026
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…r signed and unsigned char
…ck#2929) load_simd/store_simd take the address of the view's flat storage, which requires lvalue references. Gate provides_simd_interface on the storage exposing lvalue references so strided views over lazy expressions fall back to the scalar assign path instead of hard-erroring.
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Merging this PR will degrade performance by 1.66%
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| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | xshape_access[std\:\:array<std\:\:size_t, 4>] |
125.3 ns | 154.4 ns | -18.88% |
| ⚡ | Simulation | xshape_initializer[std\:\:array<std\:\:size_t, 4>] |
180.8 ns | 151.7 ns | +19.23% |
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Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing Alex-PLACET:fix-simd-reshape-lazy-view (d8553ad) with master (01798fa)1
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The codspeed benchmark regression report is not related to the modifications. |
Alex-PLACET
marked this pull request as ready for review
August 24, 2026 15:47
JohanMabille
approved these changes
Aug 27, 2026
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Fix: #2929
provides_simd_interfacenow also requires the storage to expose lvalue references, so lazybacked strided views fall back to the scalar assign path. Container-backed views keep their SIMD path unchanged.