Thurston Dang 76fac9c017 [sanitizer] Parse weighted sanitizer args and -fsanitize-skip-hot-cutoff (#121619) ...

This adds a function to parse weighted sanitizer flags (e.g.,
`-fsanitize-blah=undefined=0.5,null=0.3`) and adds the plumbing to apply
that to a new flag, `-fsanitize-skip-hot-cutoff`.

`-fsanitize-skip-hot-cutoff` currently has no effect; future work will
use it to generalize ubsan-guard-checks (originally introduced in
5f9ed2ff83).

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Co-authored-by: Vitaly Buka <vitalybuka@google.com>

2025-01-09 21:52:30 -08:00

204 KiB

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