https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63672
Bug ID: 63672
Summary: xbegin/xend/xabort missing memory barriers
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: andi-gcc at firstfloor dot org
Created attachment 33835
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33835&action=edit
proposed patch adding barriers
No test case currently, but we got a report that the builtins for x86 RTM
xbegin/xend/xabort are missing implicit memory barriers. This can cause code to
be moved outside the critical sections, breaking the program.
