[ARM] Distribute shifts as muls #7790
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abadams
reviewed
Aug 21, 2023
abadams
reviewed
Aug 21, 2023
abadams
reviewed
Aug 21, 2023
abadams
reviewed
Aug 22, 2023
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There's a nifty clang tidy failure |
abadams
reviewed
Aug 22, 2023
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lgtm pending green bots |
abadams
approved these changes
Aug 22, 2023
This reverts commit eba8f32.
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The @pranavb-ca I'd be happy to hear if you have any ideas about fixing this. I think the particular issue was that |
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Failures appear unrelated |
ardier
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to ardier/Halide-mutation
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Mar 3, 2024
* [ARM] distribute shifts as muls This reverts commit eba8f32. --------- Co-authored-by: Steven Johnson <srj@google.com>
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ARM/LLVM currently lowers
a + widening_shl(b, c)into(u | s)shllandadd, this PR lowers it to(u | s)mlal. I reused HVX machinery for the distribution,DistributeShiftsAsMuls. HVX lowering is not expected to change at all.