Open
Bug 1716311
(wasm-multiprecision)
Opened 3 years ago
Updated 3 years ago
[exploration] Multiprecision arithmetic / carry propagation - sketches, explorations
Categories
(Core :: JavaScript: WebAssembly, task, P3)
Core
JavaScript: WebAssembly
Tracking
()
NEW
People
(Reporter: lth, Unassigned)
References
(Blocks 1 open bug)
Details
Attachments
(2 files, 1 obsolete file)
There have been some discussions about multiprecision arithmetic primitives. Of these, the only hard cases are those that deal with add-with-carry and subtract-with-borrow, as we wish to keep the carry flag in the flags register as much as possible. I'll attach some sketches I've made to address the issue in Ion / Baldr.
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Reporter | |
Comment 1•3 years ago
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Comment 2•3 years ago
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Simple test case for a simple example instruction. The latest patch actually generates working code on ARM64.
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Comment 3•3 years ago
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The very latest patch has a very large comment block discussing various optimization strategies (none of them implemented).
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Comment 4•3 years ago
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Attachment #9228350 -
Attachment is obsolete: true
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Comment 5•3 years ago
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Not currently working on this. Note comment 3 - there's information in the patch about how we might go about implementing this if it comes to that.
Assignee: lhansen → nobody
Status: ASSIGNED → NEW
Summary: Multiprecision arithmetic / carry propagation → Multiprecision arithmetic / carry propagation - sketches, explorations
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Reporter | |
Updated•3 years ago
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Type: enhancement → task
Summary: Multiprecision arithmetic / carry propagation - sketches, explorations → [exploration] Multiprecision arithmetic / carry propagation - sketches, explorations
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Description
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