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[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
- From: "dvyukov at google dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 12 Dec 2014 17:52:53 +0000
- Subject: [Bug sanitizer/64265] [5 Regression] r217669 broke tsan
- Auto-submitted: auto-generated
- References: <bug-64265-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265
--- Comment #11 from Dmitry Vyukov <dvyukov at google dot com> ---
>Doing it in gimplify_function_tree is pretty straightforward
That's good!
>So, the question is just if you want to do it that way...
Kostya, can you say anything about llvm? On the tsan issue you said:
"We'll need a kind of RAII for tsan entry/exit hooks. When we are adding tsan
instrumentation, we need to create a fake class object with a ctor and dtor."
Which suggests that you wanted to do it in a similar way in llvm.
If we decide to it this way in both compilers, then no support in runtime is
required, and gcc can well implement it ahead of llvm.