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Add /LTCG option#3035

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hwangsihu wants to merge 1 commit intomaster from
ltcg
Open

Add /LTCG option #3035
hwangsihu wants to merge 1 commit intomaster from
ltcg

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@hwangsihu
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@hwangsihu hwangsihu commented Dec 6, 2025

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@hwangsihu hwangsihu force-pushed the ltcg branch 2 times, most recently from 449be62 to 9a021a1 Compare December 8, 2025 00:23
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bear101 commented Dec 10, 2025

What exactly is the benefit of this change? When I look at the size of TeamTalk5.dll on main branch and ltcg branch then it's exactly the same.

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What exactly is the benefit of this change? When I look at the size of TeamTalk5.dll on main branch and ltcg branch then it's exactly the same.

Sorry, I just checked.
When compiling most files, you'll see a warning message saying that using the /ltcg option will improve linker performance.
This is in response to the warning.

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bear101 commented Dec 14, 2025

Looking at the build times I don't see any improvements in build time compared to master branch

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But wouldn't it be nice if we could get rid of the warning message?

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bear101 commented Dec 17, 2025

By default VS2022 sets Link Time Code Generation to nothing (blank) for Debug and /LTCG:incremental for Release builds on DLL projects.

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hwangsihu commented Jan 11, 2026 •
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@bear101 Ah, Did you mean to change /LTCG to /LTCG:incremental?

@hwangsihu hwangsihu changed the title (削除) Add /LTCG option (削除ここまで) (追記) Add /LTCG:incremental option (追記ここまで) Jan 11, 2026
@hwangsihu hwangsihu force-pushed the ltcg branch 2 times, most recently from 6701360 to ad4f698 Compare January 15, 2026 13:24
@hwangsihu hwangsihu force-pushed the ltcg branch 2 times, most recently from bb136f6 to 4195046 Compare February 1, 2026 11:41
@hwangsihu hwangsihu changed the title (削除) Add /LTCG:incremental option (削除ここまで) (追記) Add /LTCG option (追記ここまで) Feb 1, 2026
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Incremental LTCG is not working.

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