[llvm-dev] RFC: Sanitizer-based Heap Profiler

[Andrey Bokhanko via llvm-dev]

On Thu, Jul 8, 2021 at 6:25 PM Teresa Johnson <tejohnson at google.com> wrote:

> Responding to this one first, I'll respond to your other email shortly.
> Initially we plan to provide hints to tcmalloc via new APIs to help it make
> allocation decisions (things like hotness and lifetime). The compiler will
> be responsible for adding these hints, using some method to disambiguate
> the calling context (e.g. via function cloning, new parameter, etc).
>
Sounds good -- thanks!

(though this would increase code size and thus, instruction cache pressure
-- tsk, tsk... :-))
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