[Bug target/66200] New: GCC for ARM / AArch64 doesn't define TARGET_RELAXED_ORDERING

[ramana at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66200

            Bug ID: 66200
           Summary: GCC for ARM / AArch64 doesn't define
                    TARGET_RELAXED_ORDERING
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ramana at gcc dot gnu.org
  Target Milestone: ---

ARM / AArch64 have a relaxed memory model, the ports need to define
TARGET_RELAXED_ORDERING and the corresponding macros for libstdc++.

This has been a problem on the ARM port since the time the feature was
introduced into the compiler in 2004 and in the AArch64 port since the dawn of
time.