[Bug sanitizer/65400] tsan mis-compiles inlineable C functions

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65400

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Mar 19 07:53:38 2015
New Revision: 221508

URL: https://gcc.gnu.org/viewcvs?rev=221508&root=gcc&view=rev
Log:
    PR sanitizer/65400
    * ipa-split.c (find_return_bb): Allow TSAN_FUNC_EXIT internal
    call in the return bb.
    (find_split_points): Add RETURN_BB argument, don't call
    find_return_bb.
    (split_function): Likewise.  Add ADD_TSAN_FUNC_EXIT argument,
    if true append TSAN_FUNC_EXIT internal call after the call to
    the split off function.
    (execute_split_functions): Call find_return_bb here.
    Don't optimize if TSAN_FUNC_EXIT is found in unexpected places.
    Adjust find_split_points and split_function calls.

    * c-c++-common/tsan/pr65400-1.c: New test.
    * c-c++-common/tsan/pr65400-2.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/tsan/pr65400-1.c
    trunk/gcc/testsuite/c-c++-common/tsan/pr65400-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-split.c
    trunk/gcc/testsuite/ChangeLog