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don't calculate the index in hashMapInsert until it's needed

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This commit is contained in:
Joel Dice 2008-08-11 16:44:38 -06:00
parent b6ce0ca73e
commit 297e8f09ec
1 changed files with 5 additions and 6 deletions
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11
src/util.cpp
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@ -340,9 +340,9 @@ void
hashMapInsert(Thread* t, object map, object key, object value,
uint32_t (*hash)(Thread*, object))
{
// note that we reinitialize the array and index variables whenever
// an allocation (and thus possibly a collection) occurs, in case
// the array changes due to a table resize.
// note that we reinitialize the array variable whenever an
// allocation (and thus possibly a collection) occurs, in case the
// array changes due to a table resize.
PROTECT(t, map);
@ -378,12 +378,11 @@ hashMapInsert(Thread* t, object map, object key, object value,
array = hashMapArray(t, map);
}
unsigned index = h & (arrayLength(t, array) - 1);
object n = makeTriple(t, k, value, 0);
array = hashMapArray(t, map);
index = h & (arrayLength(t, array) - 1);
unsigned index = h & (arrayLength(t, array) - 1);
set(t, n, TripleThird, arrayBody(t, array, index));
set(t, array, ArrayBody + (index * BytesPerWord), n);