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Re: Question on fixup_abnormal_edges

From: "David S. Miller" <davem at redhat dot com>
To: law at redhat dot com, law at porcupine dot cygnus dot com
Cc: kenner at vlsi1 dot ultra dot nyu dot edu, rth at redhat dot com, gcc at gcc dot gnu dot org
Date: Mon, 21 Oct 2002 08:45:22 -0700 (PDT)
Subject: Re: Question on fixup_abnormal_edges
References: <10210161140.AA20375@vlsi1.ultra.nyu.edu><200210211558.g9LFwmmi031637@porcupine.cygnus.com>

   From: Jeff Law <law@porcupine.cygnus.com>
   Date: Mon, 21 Oct 2002 09:58:47 -0600

   Consider a target where all registers in a particular class are
   caller-saved.  This happens (for example) on 32bit Sparc ABI for the
   floating point registers.  If you don't do caller-save you lose
   so badly it's not even funny.  I have no idea if this applies to the
   64bit Sparc ABI.

It does.

References:
- Re: Question on fixup_abnormal_edges
  - From: Richard Kenner
- Re: Question on fixup_abnormal_edges
  - From: Jeff Law

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