Bootstrap miscomparison on mainline with checking disabled

[Andrew Pinski]

On May 19, 2004, at 10:48, law@redhat.com wrote:

In message < 1084974508.3630.240.camel@localhost.localdomain >, Diego 
Novillo wri
tes:
--=-9XZfCcDdb7vvYOsYxIaK
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Folks,

One of these patches (attached) is causing a bootstrap miscomparison 
of
mainline with checking disabled.  Could you look into it?
It would help if you could at least mention what target.....
Well dwarf2out.c is being miscompiled by phiopt:

-  if (T.2057_36 != 0B) goto <L0>; else goto <L5>;
-
-<L0>:;
-
-  # rtl_335 = PHI <T.2057_36(1), 0B(0)>;
-<L5>:;
+  rtl_335 = 0B;
I will look into why it is being replaced with 0 instead of rtl_335 
which
is the correct replacement.

Thanks,
Andrew Pinski