On Thu, Sep 4, 2008 at 8:31 AM, Joel Sherrill <[EMAIL PROTECTED]> wrote: > Another related issue is that psim in gdb does not currently > support the lwsync instruction so any code generated using it > would fail there. Since this is used as the test platform for > the embedded gcc targets (at least powerpc-elf and powerpc-rtems) > if gcc is going to generate this instruction, the simulator > needs to support it or there will be lots of failures.
Joel, That is unfortunate, but it is a long-term, known problem with PSIM. Someone maintaining PSIM needs to update it. At worst, just make lwsync an alias for sync. It does not make sense to delay improving performance because a simulator is far out of date. You also can make a private change to GCC rs6000 port sources to set TARGET_NO_LWSYNC so that sync is generated instead of lwsync. David
