Make GetIndexBounds friendlier to autovectorization. Works on x86 at least. #18219
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Is it MSVC? Concerning either way. |
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Ok, I can reproduce MSVC getting |
unknownbrackets
approved these changes
Sep 24, 2023
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Oh, I didn't read the disassembly very carefully (I just breakpointed and "show disassembly" in MSVC itself, which produces rather hard-to-read output). If it's runtime detected it's good. |
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Not all games use indexed draws at all, but should be a small boost for those that do and draw a lot of geometry.
Although I noticed I was getting pmaxuw instructions on my machine, which are SSE4.1. Should the compiler really generate those? Weird! (MSVC)