[vim/vim] eval: speed up blob += blob (PR #19645)

[mattn]

Related issue #19642 #19494

Speed up blob += blob by replacing the byte-by-byte ga_append() loop with a single ga_grow() + mch_memmove() bulk copy.

Operation	Before	After	Change
blob += blob	1.3905s	1.2765s	-8%

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You can view, comment on, or merge this pull request online at:

  https://github.com/vim/vim/pull/19645

Commit Summary

• b98aa90 eval: speed up blob += blob

File Changes

(1 file)

• M src/eval.c (11)

Patch Links:

• https://github.com/vim/vim/pull/19645.patch
• https://github.com/vim/vim/pull/19645.diff

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[Christian Brabandt]

Closed #19645 via 67deae3.

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[Christian Brabandt]

chrisbra left a comment (vim/vim#19645)

thanks

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