Google assigns a CVE for libwebp and gives it a 10.0 score

Re:Google assigns a CVE for libwebp and gives it a 10.0 score by ctz on Tuesday September 26, 2023 @12:40PM (#37661910)

I think your intuition on the cost of not-taken bounds check branches is off, especially in the context of devices that spend most of their resources browsing the web, running radios, powering screen backlights. I bet any holistic measurement could not tell the difference.

[ Parent | on HN ]

Re:Google assigns a CVE for libwebp and gives it a 10.0 score by kps on Tuesday September 26, 2023 @02:15PM (#37663537)

> … resources browsing the web, running radios

That's the whole point of webp, though.

[ Parent | on HN ]

Re:Google assigns a CVE for libwebp and gives it a 10.0 score by pclmulqdq on Tuesday September 26, 2023 @02:56PM (#37664123)

Not-taken branches and filling your superscalar slots with extra instructions costs 0 time, but they still cost energy.

[ Parent | on HN ]