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LLVM 17 support #3913

Merged
merged 2 commits into from
Oct 6, 2023
Merged

LLVM 17 support #3913

merged 2 commits into from
Oct 6, 2023

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aykevl
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@aykevl aykevl commented Sep 18, 2023

I started working on LLVM 17 support. This is nowhere near close to finished: it looks like we need to switch to the new pass manager API.

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github-actions bot commented Sep 21, 2023 •
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Size difference with the dev branch:

Binary size difference 
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   6376    6376      0   0.00%  tinygo build -size short -o ./build/test.hex -target=microbit ./examples/st7735/main.go
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3826946 3826946      0   0.00%   sum

@aykevl aykevl force-pushed the llvm17 branch 10 times, most recently from 5683f02 to 789ef20 Compare September 23, 2023 14:10
@aykevl aykevl marked this pull request as ready for review September 23, 2023 17:45
@aykevl aykevl changed the title WIP: LLVM 17 support LLVM 17 support Sep 23, 2023
@deadprogram
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@aykevl ready for rebase against dev please.

@aykevl
avr: don't compile large parts of picolibc (math, stdio)
a662a96 
These parts aren't critical and lead to crashes on small chips without
long jumps (like the attiny85) with LLVM 17. (Older LLVM versions would
emit long jumps regardless, even if the chip didn't support those).

For more information, see: llvm/llvm-project#67042
@aykevl
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aykevl commented Oct 4, 2023

Rebased and fixed the merge conflicts.

@deadprogram
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Looks like small actual error here https://app.circleci.com/pipelines/github/tinygo-org/tinygo/10049/workflows/17f345fb-36e7-4d80-a264-9256810f016c/jobs/41329?invite=true#step-118-49_123

@deadprogram
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@aykevl please see above error.

@aykevl
all: add initial LLVM 17 support
61a23fd 
This allows us to test and use LLVM 17, now that it is available in
Homebrew.

Full support for LLVM 17 (including using it by default) will have to
wait until Espressif rebases their Xtensa fork of LLVM.
@aykevl
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aykevl commented Oct 5, 2023

I'm going to assume it was a stale cache, so I've updated the cache key. Let's see whether it works now.

@deadprogram
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Looking good so now merging. Thanks everyone!

@deadprogram deadprogram merged commit 18b50db into dev Oct 6, 2023
23 checks passed
@deadprogram deadprogram deleted the llvm17 branch October 6, 2023 07:05
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@aykevl @deadprogram