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| author | Duncan Coutts <duncan@well-typed.com> | 2011-06-01 17:16:29 +0100 |
|---|---|---|
| committer | Duncan Coutts <duncan@well-typed.com> | 2011-07-18 16:31:13 +0100 |
| commit | e0b98b42847dea19aff24df2faa354c9d414fc87 (patch) | |
| tree | e354b2c867ffe1d5e1e71b999c25139d5312661f /LICENSE | |
| parent | 81eddb4c58c6d4171a46c727574112e2083c4878 (diff) | |
| download | haskell-e0b98b42847dea19aff24df2faa354c9d414fc87.tar.gz | |
Improve the newSpark dud test by using the pointer tag bits
newSpark() checks if the spark is a dud, and if so does not add it to
the spark pool. Previously, newSpark would discard the pointer tag bits
and just check closure_SHOULD_SPARK(p). We can take advantage of the
tag bits which can tell us if the pointer points to a value. If it is,
it's a dud spark and we don't need to add it to the spark pool.
Diffstat (limited to 'LICENSE')
0 files changed, 0 insertions, 0 deletions