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Malte Ubl
f4ce6910c7
Release executables now import small runtime functions from runtime bitcode, as speed executables do, so LLVM can inline them into program code. Release units keep the runtime compiler's own objects, unchanged, and additionally ship the bitcode of the same compilation reduced by the helper's prune-import. Their unit-local symbols stay local, so only bodies that need none of them can be imported, which keeps the import small: about 1.3 MB per program. Only unsanitized programs small enough for one codegen partition import. Every partition reads the bitcode again; on the Effect fixtures (64 partitions) import cost +2..18% compile time and +4.3..4.9% size, so partitioned release builds stay exactly as before. Speed is unchanged. Measured against main in Linux Vercel Sandboxes, same-VM interleaved medians (bench-runtime --layouts=4 --runs=16), on two VMs: - bench-runtime (31 workloads): -1.3% (8 faster, 0 slower) and -1.0% (1 slower, typed-array-scan-workers +3.2%); size +0.0% - js-compiled suite (22 programs): -2.2% and -1.8%; size -0.1% - cold builds of all 53 programs, interleaved: +3.1%; helper time per build +40..235 ms - Effect fixtures: byte-identical to main