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scavanging a reg
- To: gcc at gcc dot gnu dot org
- Subject: scavanging a reg
- From: Aldy Hernandez <aldyh at redhat dot com>
- Date: 13 Nov 2001 10:52:47 -0500
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i need a GPR at epilogue/prologue time so i can load and save to the
VRSAVE register (which can only be moved to and fro GPRs).
what's the best route for this? can i iterate through "regs_ever_live"
and get one from there? i mean, reload is already done so we won't need
any more registers.
thanks.
--
Aldy Hernandez E-mail: aldyh@redhat.com
Professional Gypsy
Red Hat, Inc.