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Re: rfc: clobber all call-saved registers
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: Richard dot Earnshaw at arm dot com
- Cc: Alexandre Oliva <aoliva at redhat dot com>, Richard Henderson <rth at redhat dot com>, gcc at gcc dot gnu dot org
- Date: Thu, 10 Jan 2002 10:51:13 -0500
- Subject: Re: rfc: clobber all call-saved registers
>>>>> Richard Earnshaw writes:
Richard> Hmm, this might be useful as a way of safely allowing an asm to call a
Richard> subroutine and ensure that the compiler clobbers all the correct registers
Richard> at that point.
Yes, this would be great! I have needed the ability to use magic
instructions to trap into simulators that expect function-like argument
passing.
David