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Add zlib compression to the debug_str_offset section #8644

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merged 1 commit into from May 1, 2024

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rastogishubham
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In MCCAS, the DWARF5 size is larger than the DWARF4 size because of the presence of the debug_str_offset section. There is not much we can do to improve the deduplication rate of that section, so the only thing to do is to compress the data in that cas block, which is what this patch adds support for.

(cherry picked from commit de44455)

@rastogishubham
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@swift-ci please test

@rastogishubham
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@swift-ci please test

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@rastogishubham
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@swift-ci please test

In MCCAS, the DWARF5 size is larger than the DWARF4 size because of the
presence of the debug_str_offset section. There is not much we can do to
improve the deduplication rate of that section, so the only thing to do
is to compress the data in that cas block, which is what this patch adds
support for.

(cherry picked from commit de44455)
@rastogishubham
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@swift-ci please test

@adrian-prantl adrian-prantl merged commit e2c7bdb into apple:swift/release/6.0 May 1, 2024
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@rastogishubham rastogishubham deleted the DbgStrOffs6 branch May 1, 2024 20:08
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2 participants