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Re: Bootstrap miscomparison on mainline with checking disabled



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


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