Add a pass to remove relaxed SIMD instructions #8300
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and replace them with unreachables. This might be useful in situations where a module needs to be processed by tools that do not support relaxed SIMD, but where the relaxed SIMD usage also does not affect the output of the tool.
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kripken
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Feb 11, 2026
src/passes/RemoveRelaxedSIMD.cpp
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| std::unique_ptr<Pass> create() { | ||
| return std::make_unique<RemoveRelaxedSIMD>(); | ||
| } |
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By convention we put these at the top (under the parallel bit)
kripken
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Feb 11, 2026
| (i32x4.relaxed_trunc_f32x4_s (local.get 0)) | ||
| ) | ||
| ) | ||
| ) |
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Please test a case where a child must be kept around due to effects.
kripken
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Feb 12, 2026
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and replace them with unreachables. This might be useful in situations
where a module needs to be processed by tools that do not support
relaxed SIMD, but where the relaxed SIMD usage also does not affect the
output of the tool.