Reduce memory footprint of the Swift compiler #401
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Use malloc/free for allocating/freeing SIL instructions instead of using the BumpPtrAllocator. This allows for memory reuse and significantly reduces the memory footprint of the compiler. For example, a peak memory usage during a compilation of the standard library and StdlibUnitTest is reduced by 25%-30%. The performance of the compiler seems to be not affected by this change, i.e. no slowdown is measured. The use-after-free issues reported by build bots are fixed now. rdar://23303031
swiftix
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Hopefully, we managed to fix all the instruction deletion related bugs in the meantime. |
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Reduce memory footprint of the Swift compiler
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Nov 27, 2018
Split Swift SDK Overlay
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[pull] swiftwasm from master
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…and-bond Add ReactiveKit
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Use malloc/free for allocating/freeing SIL instructions instead of using the BumpPtrAllocator. This allows for memory reuse and significantly reduces the memory footprint of the compiler.
For example, a peak memory usage during a compilation of the standard library and StdlibUnitTest is reduced by 25%-30%. The performance of the compiler seems to be not affected by this change, i.e. no slowdown is measured.
This is re-submission of the updated #14, because GitHub had issues updating my original PR with the latest changes.