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Re: Query about reload pass !!
- From: Jim Wilson <wilson at redhat dot com>
- To: Ranjit Singh <ranjit_singh_007 at yahoo dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: 18 Oct 2002 12:17:00 -0400
- Subject: Re: Query about reload pass !!
- References: <20021018122922.56175.qmail@web13003.mail.yahoo.com>
>I am interested to know how exactly replacement of
>regs which fail to get hard regs take place.
Pseudo-regs are unique rtl, so we only have to make one change in order to
modify all uses of a pseudo-reg. This is done in alter_reg to convert
pseudo-regs into hard-regs, and near the end of reload() to convert pseudo
regs into MEMs. Search for regno_reg_rtx.
>And does new reg allocator also has similar
>processing.
I don't know. Probably.
Jim