[Bug rtl-optimization/54900] write introduction incorrect wrt the C11 memory model (2)

[aldyh at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54900

--- Comment #5 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2012-10-18 23:46:04 UTC ---
I am leaving this PR open while I address the corner case presented by Jakub
somewhere in this thread:

http://gcc.gnu.org/ml/gcc-patches/2012-10/msg01763.html

...though technically the testcase in this PR has been fixed :).