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Bug 854400 - Disable double conversion in parallel mode r=bhackett

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This commit is contained in:
Nicholas D. Matsakis 2013-05-08 14:08:38 -04:00
parent 108b6c89c0
commit cdc6685302
1 changed files with 6 additions and 0 deletions
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6
js/src/ion/IonBuilder.cpp
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@ -6229,8 +6229,14 @@ IonBuilder::jsop_getelem_dense()
// If we can load the element as a definite double, make sure to check that
// the array has been converted to homogenous doubles first.
//
// NB: We disable this optimization in parallel execution mode
// because it is inherently not threadsafe (how do you convert the
// array atomically when there might be concurrent readers)?
types::StackTypeSet *objTypes = obj->resultTypeSet();
ExecutionMode executionMode = info().executionMode();
bool loadDouble =
executionMode == SequentialExecution &&
!barrier &&
loopDepth_ &&
!readOutOfBounds &&