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Re: analysis: alpha bootstrap failure on mainline
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: Roger Sayle <roger at www dot eyesopen dot com>
- Cc: gcc at gcc dot gnu dot org, Brad Lucier <lucier at math dot purdue dot edu>, Toon Moene <toon at moene dot indiv dot nluug dot nl>
- Date: Tue, 06 May 2003 13:15:03 -0400
- Subject: Re: analysis: alpha bootstrap failure on mainline
>>>>> Roger Sayle writes:
Roger> Digging deeper it turns out that the bug isn't
Roger> actually in the preprocessor code at all, but somewhere else in the
Roger> compiler resulting in cppexp.o being miscompiled during bootstrap.
Roger> Removing this file and rebuilding with the host compiler, allows
Roger> stage3 to complete.
Roger> Given that working like this, its going to take me a while, I was
Roger> wondering whether gdb works on alpha/Linux in which case they'd be
Roger> able to find the culprit much faster, or alternatively could someone
Roger> with an alpha start the binary search to identify the patch that
Roger> introduced the failure.
Have you thought about using Janis's tools to automatically narrow
in on the patch which introduced the failure?
David