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Re: Reload problem on ppc64 (was: Analysis of high priority PR c/2454)
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: Michael Matz <matzmich at cs dot tu-berlin dot de>
- Cc: gcc at gcc dot gnu dot org, Jeffrey A Law <law at redhat dot com>
- Date: Tue, 02 Jul 2002 12:59:55 -0400
- Subject: Re: Reload problem on ppc64 (was: Analysis of high priority PR c/2454)
GCC seems to be confused by the DImode values in FPRs. I think
that maybe the constraints for the DImode operands should add the "*"
modifier so that the FPR only is used as a constraint and not register
preferences. The register preferencing is what seems to be confusing the
compiler. Does that seem like a useful approach?
Thanks, David