How can INITIAL_FRAME_POINTER_OFFSET be made correct?

[Dave Korn]

> -----Original Message-----
> From: Joern Rennecke 
> Sent: 19 March 2004 15:59
> To: Dave Korn

> >   There's a bit of a problem, however.  
> regs_ever_live[LINK_REGNUM] is 
> > zero when INITIAL_FRAME_POINTER_OFFSET is called, but something has 
> > set it to one by the time we get to the emit prologue 
> function.  The 
> > result is that the two of them disagree about the size and 
> layout of 
> > my stackframes, and I get a lot of FAILs in the varargs tests.
> 
> Is LINK_RENUM eliminable, or can something else be eliminated to it?

There is no ELIMINABLE_REGS definition, but FRAME_POINTER_REQUIRED is zero
so gcc can do its default eliminate-lr-vs-sp.



    cheers, 
      DaveK
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