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Re: [AVR] RTL prologue/epilogue

From: Björn Haase <bjoern dot m dot haase at web dot de>
To: HutchinsonAndy at netscape dot net
Cc: gcc at gcc dot gnu dot org,avr-gcc-list at avr1 dot org
Date: Sun, 20 Mar 2005 16:23:50 +0100
Subject: Re: [AVR] RTL prologue/epilogue

Hello Andy,

I have tested your patch concerning RTL prologue/epilogue. Gratulations: My 
testsuite run only reports a single regression

Tests that now fail, but worked before:

gcc.c-torture/execute/20010122-1.c execution,  -O0 

. This happens on a testcase that anyway is problematic (succeeds only for 
selected set of optimization switches).

Due to your "rjmp" trick the resulting code also is sligtly tighter. IIUC, now 
there is also hope for optimizing sequences like

	call other_function
	ret

to 
        jmp other_function
.?

Yours,

Björn

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