--- Comment #5 from ralf-engels at gmx dot de 2006-08-30 20:43 ---
Wow,
you mean that unrolling the loop three times but not removing it is the right
behaviour?
Anyway, 4.1.1 seems to do it right. It's removing the whole loop as expected.
delay.h is working.
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http://gcc.gnu.org
--- Comment #4 from pinskia at gcc dot gnu dot org 2006-08-30 15:09 ---
This is just unrolling/removing empty loops so invalid.
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
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--- Comment #3 from eweddington at cso dot atmel dot com 2006-08-30 15:06
---
The AVR does not have an Add Immediate instruction (addi), so this is normally
done using sbi with a negative number as Andrew correctly points out.
In Ralf's unoptimized output, it correctly shows a -2 (0xFE
--- Comment #2 from pinskia at gcc dot gnu dot org 2006-08-29 22:34 ---
264: 8a 5f subir24, 0xFA ; 250
That looks fine for me since it is r24 = r24 - -2.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28894
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
Severity|critical|normal
Component|tree-optimization |target
http:
