Emit post-optimization CLIF with --emit-clif
#10011
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This commit updates the implementation of the `wasmtime` CLI flag `--emit-clif` to emit the IR post-optimization rather than pre-optimization. This is now emitting the IR that's directly fed to the backend for lowering which reflects any mid-level transformation that's performed. It should still be possible to recover pre-optimized CLIF with `-O opt-level=0`. This then additionally refactors functions to emit CLIF in a more "core" location so all trampolines get their CLIF emitted as well in case those are needed for debugging.
dicej
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Jan 14, 2025
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Looks like all
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alexcrichton
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Jan 14, 2025
Just after bytecodealliance#10011 I ran into a case where I wanted to peek at CLIF after compilation failed but the structure of the code failed to enable this, so I've refactored `--emit-clif` to emit the CLIF even if the lowering step fails.
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Just after #10011 I ran into a case where I wanted to peek at CLIF after compilation failed but the structure of the code failed to enable this, so I've refactored `--emit-clif` to emit the CLIF even if the lowering step fails.
Doesn't that still perform legalizations? |
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That's true yeah, |
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This commit updates the implementation of the
wasmtimeCLI flag--emit-clifto emit the IR post-optimization rather than pre-optimization. This is now emitting the IR that's directly fed to the backend for lowering which reflects any mid-level transformation that's performed. It should still be possible to recover pre-optimized CLIF with-O opt-level=0.This then additionally refactors functions to emit CLIF in a more "core" location so all trampolines get their CLIF emitted as well in case those are needed for debugging.