Re: sparc64 vs. gcc 4.8

To: matthew green <mrg%eterna.com.au@localhost>
Subject: Re: sparc64 vs. gcc 4.8
From: Erik Fair <fair%netbsd.org@localhost>
Date: Fri, 3 Oct 2014 00:15:56 -0700

One other way to go about it: compare the individual object files produced by each compiler before they’re linked into a monolithic kernel. Wouldn’t one expect most of them to be identical? Or is GCC code generation between 4.5 and 4.8 so different that they’ll all change?

The object files that differ from the same source but different compiler versions would, one hopes, constrain the bug search space.

	Erik <fair%netbsd.org@localhost>

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