[RFC] ABI compatibility with vendor compiler on SPARC/Solaris

Christoph Hellwig hch@infradead.org
Tue Jan 27 18:34:00 GMT 2004


On Tue, Jan 27, 2004 at 03:48:44PM +0100, Eric Botcazou wrote:
> > Should GCC adopt the conventions of the vendor compiler as of GCC 3.4? 
> > They are technically superior, because you can't move a value between
> > integer regs and FP regs on SPARC without spilling it to memory.
> 
> I finally decided to make the switch, after seeing that Alpha already did so 
> for 3.4 in order to be compatible with the Tru64 compiler.
> 
> So the patch fixes the last failures in the compat testsuite in 32-bit mode 
> against the Sun ONE Studio 8 compiler.  It was bootstrapped/regtested on 
> sparc-sun-solaris2.[5678] and compat-regtested.

I'm not exactly fluent in reading gcc code, but doesn't this change
the ABI for other targets, e.g. Linux, too?



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