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Bug 5443 - [PATCH] Implement SDL_MostSignificantBitIndex32 with MSVC intrinsics

Summary: [PATCH] Implement SDL_MostSignificantBitIndex32 with MSVC intrinsics

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Patch (770 bytes, patch) 2021-01-03 20:06 UTC, Cameron Gutman	Details \| Diff
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Description Cameron Gutman 2021-01-03 20:06:37 UTC

Created attachment 4636 [details]
Patch

MSVC provides a _BitScanReverse() intrinsic that we can use to implement SDL_MostSignificantBitIndex32().

Comment 1 Sam Lantinga 2021-01-03 21:57:31 UTC

Patch added, thanks!
https://hg.libsdl.org/SDL/rev/2dd9827ac682

We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.