Refactor optimization pass handling. #6778
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I've encountered an error that may-or-may not be caused by this. I'm trying to narrow it down, but it probably isn't worth approving until I get to the bottom of this. |
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So my copying of the passes wasn't great and I copied things that I probably shouldn't have, that is likely what is causing the error I encountered. I'm fixing it up, so I'l push a commit to fix it when that's done. |
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Please do! assuming it's the same structure of a change as this one, r=me Thanks! |
Refactor the optimization passes to explicitly use the passes. This commit just re-implements the same passes as were already being run. It also adds an option (behind `-Z`) to run the LLVM lint pass on the unoptimized IR.
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Refactor the optimization passes to explicitly use the passes. This commit just re-implements the same passes as were already being run. It also adds an option (behind `-Z`) to run the LLVM lint pass on the unoptimized IR. This should close #2812. It is also the first step towards #2396 ---------------- This is pretty much just an initial "get it out there" PR. With finer control over the optimization passes coming later. I also just blindly copied the passes we were already doing, so there could almost certainly be some more work in paring it down. The other thing is the addition of the `mergefunctions` pass, which is currently enabled at `--opt-level=3` and does have a small impact on the code size. However the fact that it is at the end of the optimization pipeline is probably not ideal, so some more experimentation is in order.
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Refactor the optimization passes to explicitly use the passes. This commit just re-implements the same passes as were already being run.
It also adds an option (behind
-Z) to run the LLVM lint pass on the unoptimized IR.This should close #2812. It is also the first step towards #2396
This is pretty much just an initial "get it out there" PR. With finer control over the optimization passes coming later. I also just blindly copied the passes we were already doing, so there could almost certainly be some more work in paring it down.
The other thing is the addition of the
mergefunctionspass, which is currently enabled at--opt-level=3and does have a small impact on the code size. However the fact that it is at the end of the optimization pipeline is probably not ideal, so some more experimentation is in order.