Method and apparatus for recovering data values in dynamic runtime systems
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United States of America Patent
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-
Dec 11, 2007
Grant Date -
Oct 28, 2004
app pub date -
Apr 25, 2003
filing date -
Apr 25, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An arrangement is provided for data value recovery in an optimized program by precisely allocating predicate registers to guard branching instructions in the optimized program at compilation time. At execution time, an execution path leading to a recovery point is determined based on values of predicate registers guarding branching blocks. The values of non-current and non-resident data may be recovered at the recovery point according to the determined execution path. Optimization annotations may also be utilized for data value recovery.
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