On Dec 28, 2010, "H.J. Lu" <hjl.tools@gmail.com> wrote:

> On Tue, Dec 21, 2010 at 7:49 PM, Alexandre Oliva <aoliva@redhat.com> wrote:
>> On Dec 21, 2010, Richard Henderson <rth@redhat.com> wrote:

>>> Ok, with a function comment for vt_add_function_parameter.

>> Thanks, here's what I installed.

> This caused:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47079

Thanks.  Of course, this *had* to happen while my fast build machine was
on repairs, and I ended up cutting down testing to x86_64 only on my
older and slower build box :-(

On x86, .result_ptr was a MEM rather than a REG, and because result_ptr
wasn't a local VAR_DECL, its RTL wasn't properly devirtualized, and
dwarf2out didn't quite know what to do with virtual-incoming-args.

Fixed with the following patch (slightly different from the patch
uploaded to bugzilla, to fix a cut&pasto).  Regstrapped on x86_64 and
x86-linux-gnu.  Ok to install?