HAL Id: inria-00074638
https://hal.inria.fr/inria-00074638
Submitted on 24 May 2006
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A New class of algorithms for software pipelining with resource constraints
Christine Eisenbeis, D. Windheiser
To cite this version:
Christine Eisenbeis, D. Windheiser. A New class of algorithms for software pipelining with resource
constraints. [Research Report] RR-2033, INRIA. 1993. �inria-00074638�
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AB£+FZATP/A~BAUP/D'EUpgBXNB!JZJR@JZFHKuA]k@Eu@@IDTFRDKuE8X8PG)E8FZUDKk@JZUD/SVFRD/S.E8U.O+Fz@IX8@D'EFREY@XNBE8FZUDKc>
...
...
...
...
...
...
...
...
...
...
...
2 3
1
...
...
...
...
(i=1)
... ...
MEM 1 MEM 2
ADD 1 ADD 2
ADD a
A(i) B(i) A(i+1) B(i+1) A(i+2) B(i+2) A(i+3) B(i+3) C(i) C(i+1) C(i+2) C(i+3)
A(i) B(i) A(i+1) B(i+1) A(i+2) B(i+2) A(i+3)
A(i) B(i) A(i+1) B(i+1)
+(i) +(i+2) +(i+3)
+(i) +(i+1) +(i+2) +(i+3)
+(i+1) +(i+2) +(i+3)
+(i+1) +(i+2) +(i+3)
+(i) ...
m+1
m m+a+1 m+a+2 m+a+3 m+a+4 m+a+5 m+a+6 m+a+7 m+a+8
MEM m
LOOP (i=i+4) m+3 m+2
FZSP/[email protected]@l E8FRAs@K P/DQX8UJZJR@OjJRU3Ug
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KYB!E8PQXNB!EY@OFZDE8MQ@KuE8@BVO+:KWE[B!E8@ >
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KuU!pEu BX8@Tg/FZg-@IJRFRDQ@O9JRU3UVg k+:@D+pUVXNG)FZD/S8AU'O+PQJRUXY@KWUVP/XNG)@jGcUDKuE8XNBFRD'ENK :%AsU'O+P/JRUEYM/@jKWFZi@
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(i=8) LOOP (i=i+6) 2
1 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
A(1) B(1) B(i) A(i+1) C(i-2) +(i-1)
B(i+1) A(i+2) B(i+2) +(i)
C(i-1) A(i+3) B(i+3) +(i+1)
C(i) A(i+4) +(i+2)
B(i+4) C(i+1) A(i+5) +(i+3)
C(i+2) B(i+5) A(i+6) C(i+3) +(i+4) ADD 1
MEM1
FZSP/XY@^l' = D@DQFRE8@%EYFRA@K^P/DQX8UJZJR@OjJRU3UgB!DOX8@KuP/JREYFRD/STXY@g@E8FZE8FZ¤3@agBE8EY@X8D
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B(i-1) A(i-1) B(3)
A(3)
B(2) B(2)
A(2) A(2)
B(1) B(1)
A(1) A(1)
+(i-1) +(i-2)
+(1) +(i)
C(i-1) C(i-2)
C(i-3) B(3)
A(3) B(2)
A(2) B(1)
A(1)
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4
C(i) B(i)
A(i)
ADD a ...
ADD 2 ADD 1 MEM 1 MEM 2
MEM m ...
...
2 3
1
...
...
...
...
...
...
(i=1)
LOOP (i=i+1)
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