Open
Bug 777659
Opened 12 years ago
Updated 2 years ago
IonMonkey: (ARM) fuse instructions
Categories
(Core :: JavaScript Engine, defect)
Tracking
()
NEW
People
(Reporter: mjrosenb, Unassigned)
Details
(Whiteboard: [ion:t])
Attachments
(1 file)
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25.92 KB,
patch
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Details | Diff | Splinter Review |
The basic idea is on ARM most of the ALU based instructions can take a (limited) integer, a register *or* a register shifted by some amount! For the most part, we only use the first two modes, but by analyzing the MIR, we can generate add r0, r1, r2 lsl #4 rather than using two instructions, and giving the register allocator more work. This patche is quite thoroughly hacked together, and probably needs some architectural fixes.
Attachment #646064 -
Flags: feedback?(dvander)
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Updated•12 years ago
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Whiteboard: [js:t]
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Updated•12 years ago
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Whiteboard: [js:t] → [ion:t]
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Updated•11 years ago
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Attachment #646064 -
Flags: feedback?(dvander)
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Assignee | |
Updated•10 years ago
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Assignee: general → nobody
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Updated•2 years ago
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Severity: normal → S3
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Description
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