All of them. More precisely, content is tokenized ahead of time at filter priority -1000 (i.e., before all others in WP core and before most anything else in other plugins), and then the tokenized content is restored at filter priority 1000 (after all others are done).
In other words, no content filters will be applied to content inside <pre>, <code>, <samp> tags, or inside Markdown `backticks` and/or ```fenced``` code blocks — with or without a language specifier.
