[PATCH] D91392: [hwasan] Fix Thread reuse (try 2).
Evgenii Stepanov via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Nov 12 16:10:49 PST 2020
eugenis added inline comments.
================
Comment at: compiler-rt/lib/hwasan/hwasan_thread_list.h:113
+ void RemoveThreadFromLiveList(Thread *t) {
+ for (Thread *&t2 : live_list_)
+ if (t2 == t) {
----------------
vitalybuka wrote:
> maybe you can just flip some the t->dead = true
> and do some garbage collection when e.g. live_list_ contains 50% of dead?
>
this sounds like a premature optimization, and it would increase RAM by decreasing CPU use, which is not the direction we want to move on mobile
================
Comment at: compiler-rt/lib/hwasan/hwasan_thread_list.h:115
+ if (t2 == t) {
+ live_list_.erase(&t2);
+ return;
----------------
vitalybuka wrote:
> t2 = live_list_.back();
> live_list_.pop_back();
This would remove the last element, why?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D91392/new/
https://reviews.llvm.org/D91392
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