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Re: [avr-gcc-list] Now to do Tail Recursions?
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From: |
Theodore A. Roth |
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Subject: |
Re: [avr-gcc-list] Now to do Tail Recursions? |
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Date: |
Mon, 30 Aug 2004 11:21:16 -0700 (PDT) |
On Mon, 30 Aug 2004, Bob Paddock wrote:
>
> Some gcc targets have an option of "-mtail-call" to optimize
> calls followed immediately by a return into a jump to the subroutine.
>
> Example:
>
> rcall hex8
> ret
>
> becomes
>
> rjmp hex8
Wouldn't you risk currupting your stack doing this? If the function you
did this from has an epilogue which pops some registers that where
pushed in the prologue, you would not return properly from hex8().
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Ted Roth
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