[Bug target/62253] gcc incorrectly mixes direct atomic instructions with calls to atomic library

[alexey.lapshin at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62253

Alexey Lapshin  changed:

   What|Removed |Added

 CC||alexey.lapshin at oracle dot 
com

--- Comment #2 from Alexey Lapshin  ---
the __atomic_load_8() function from i386 Solaris libatomic.so gcc 4.9.2 still
has calls to libat_lock. i.e. library uses pthread implementation for lock free
8-bytes object.

[Bug target/62253] gcc incorrectly mixes direct atomic instructions with calls to atomic library

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62253

--- Comment #1 from Andrew Pinski  ---
Iirc lib atomic on x86 uses the atomic instructions for 32bit and not the
pthread implemention. Also if you have xchng, you can do all functions using
that one without using the pthread implemention.